Wireless 11n ADSL Firewall Router
User Guide
WL-603
3CRWDR300A-73
3CRWDR300B-73
http://www.3Com.com/
Part No. 10016794 Rev AA
Published July 2008
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Related Documentation
INTRODUCING THE ROUTER
INSTALLING THE ROUTER
Introduction 21
Using the Rubber Feet 22
Wall Mounting 22
Powering Up the Router 23
Connecting the Router 23
SETTING UP YOUR COMPUTERS
Obtaining an IP Address Automatically 27
Windows 2000 27
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Accessing the Setup Wizard 35
Wizard - Change Password 38
WPS 65
Connection Control 67
Client List 68
WMM 68
WDS 71
Advanced 74
Internet Settings 76
ATM PVC 76
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Browsing to the Router Configuration Screens 136
Connecting to the Internet 136
IP ADDRESSING
The Internet Protocol Suite 145
Managing the Router over the Network 145
Static Addressing 147
Auto-IP Addressing 148
TECHNICAL SPECIFICATIONS
3Com Wireless 11n Cable/DSL Firewall Router 149
Standards 151
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OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS
Register Your Product to Gain Service Benefits 160
Purchase Extended Warranty and Professional Services 160
Access Software Downloads 161
Telephone Technical Support and Repair 161
GLOSSARY
REGULATORY NOTICES
INDEX
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ABOUT THIS GUIDE
This guide describes how to install and configure the 3Com Wireless 11n
ADSL Firewall Router (3CRWDR300A-73, 3CRWDR300B-73).
This guide is intended for use by those responsible for installing and
setting up network equipment; consequently, it assumes a basic working
knowledge of LANs (Local Area Networks) and Internet Routers.
This manual covers both Annex A (ADSL over POTS) and Annex B (ADSL
over ISDN) Routers. The only difference is they style of ADSL connector
and type of cable supplied with your Router for connection to your
telephone line.
If a release note is shipped with the 3Com Wireless 11n ADSL Firewall
Router and contains information that differs from the information in this
guide, follow the information in the release note.
Most user guides and release notes are available in Adobe Acrobat
Reader Portable Document Format (PDF) on the 3Com World Wide Web
site:
http://www.3Com.com
Naming Convention Throughout this guide, the 3Com Wireless 11n ADSL Firewall Router is
referred to as the “Router”.
Category 5 Twisted Pair Cables are referred to as Twisted Pair Cables
throughout this guide.
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8
ABOUT THIS GUIDE
Conventions
Table 1 and Table 2 list conventions that are used throughout this guide.
Table 1 Notice Icons
Icon
Notice Type
Description
Information note Information that describes important features or
instructions.
Caution
Warning
Information that alerts you to potential loss of data or
potential damage to an application, system, or device.
Information that alerts you to potential personal
injury.
Table 2 Text Conventions
Convention
Description
The words “enter”
and “type”
When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press
Return or Enter when an instruction simply says “type.”
Keyboard key names If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Words in italics
Italics are used to:
■
Emphasize a point.
■
Denote a new term at the place where it is defined in the
text.
■
Identify menu names, menu commands, and software
button names. Examples:
From the Help menu, select Contents.
Click OK.
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Feedback About This User Guide
9
Feedback About
This User Guide
Your suggestions are very important to us. They will help make our
documentation more useful to you. Please e-mail comments about this
document to 3Com at:
Please include the following information when commenting:
■
■
■
Document title
Document part number (on the title page)
Page number (if appropriate)
Example:
■
■
■
3Com Wireless 11n ADSL Firewall Router User Guide
Part Number 10016794 Rev. AA
Page 24
Do not use this e-mail address for technical support questions. For
information about contacting Technical Support, please refer to
Appendix E.
Related
Documentation
In addition to this guide, each Router document set includes one
Installation Guide. This guide contains the instructions you need to install
and configure your Router.
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10
ABOUT THIS GUIDE
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INTRODUCING THE ROUTER
1
Welcome to the world of networking with 3Com®. In the modern
business environment, communication and sharing information is crucial.
Computer networks have proved to be one of the fastest modes of
communication but, until recently, only large businesses could afford the
networking advantage.
Wireless 11n ADSL
Firewall Router
cost-effective means of sharing a single broadband Internet connection
amongst several wired and wireless computers. The Router also provides
protection in the form of an electronic “firewall” preventing anyone
outside of your network from seeing your files or damaging your
computers. The Router can also prevent your users from accessing Web
sites which you find unsuitable.
Figure 1 shows an example network without a Router. In this network,
only one computer is connected to the Internet. This computer must
always be powered on for the other computers on the network to access
the Internet.
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12
CHAPTER 1: INTRODUCING THE ROUTER
Figure 1 Example Network Without a Router
When you use the Router in your network (Figure 2 and Figure 3), it
becomes your connection to the Internet. Connections can be made
directly to the Router, or to an OfficeConnect Switch or Hub, expanding
the number of computers you can have in your network.
Figure 2 Example Network Using a Firewall Router (with splitter)
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14
CHAPTER 1: INTRODUCING THE ROUTER
Router Advantages
The advantages of the Router include:
■
■
■
Shared Internet connection for both wired and wireless computers
High speed 802.11n wireless networking
No need for a dedicated, “always on” computer serving as your
Internet connection
■
Cross-platform operation for compatibility with Windows, Unix and
Macintosh computers
■
■
■
Easy-to-use, Web-based setup and configuration
Provides centralization of all network address settings (DHCP)
Acts as a Virtual server to enable remote access to Web, FTP, and other
services on your network
■
Security — Firewall protection against Internet hacker attacks and
encryption to protect wireless network traffic
Package Contents
The Router kit includes the following items:
■
■
■
■
■
■
One 3Com Wireless 11n ADSL Firewall Router
One power adapter for use with the Router
Four rubber feet
One telephone cable (only for 3CRWDR300A-73 version)
One Ethernet cable (Two Ethernet cables in 3CRWDR300B-73 version)
One CD-ROM containing this user guide, copies of the quick install
guide in various languages and the 3Com Detect application.
■
■
■
Installation guide
Support and Safety sheet
Warranty sheet
If any of these items are missing or damaged, please contact your retailer.
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Minimum System and Component Requirements
15
Minimum System
and Component
Requirements
Your Router requires that the computer(s) and components in your
network be configured with the following:
■
A computer with an operating system that supports TCP/IP
networking protocols (for example Windows 2000/XP,/Vista, Unix,
Mac OS 8.5 or higher).
■
An Ethernet 10 Mbps or 10/100 Mbps or 10/100/1000 Mbps NIC for
each computer to be connected to the LAN port on your Router.
■
■
■
An 802.11b, 802.11g or 802.11n draft2.0 compliant wireless NIC.
An active ADSL subscription and connection.
A Web browser that supports JavaScript, such as Netscape 4.7 or
higher, Internet Explorer 6.0 or higher, or Mozilla 1.2.1 or higher, or
Apple’s Safari.
Physical Features
The front panel of the Router contains a series of indicator lights (LEDs)
that help describe the state of various networking and connection
operations.
Figure 4 Router - Front Panel
3
7
1
4
6
5
2
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16
CHAPTER 1: INTRODUCING THE ROUTER
1 Power LED (Illuminated Logo)
White
The 3Com logo serves as power OK indicator. This LED will light if the
router is receiving power from the power adapter. If it is not lit check the
power adapter connections. Refer to Chapter 6 Troubleshooting.
2 Alert LED
Amber
Fast flash during self test. If self test fails the LED will remain on.
Fast flash during software upgrade.
Fast flash for software reset to the factory defaults.
Fast flash for hardware reset to the factory defaults.
The LED is on for 2 seconds when the firewall detects a hacker attack.
3 ADSL Sync
Blue
LED on indicates the Internet connection is on. This LED flashes during
configuration at power up.
4 ADSL Data
Blue
Fast flash means transmitting/receiving data.
Slow flash means ADSL connection is down.
5 Wireless LAN (WLAN) Status LED
Blue
If the LED is on it indicates that wireless networking is enabled. If the LED
is flashing, the link is OK and data is being transmitted or received. If the
LED is off, the Wireless LAN has been disabled in the Router, or there is a
6 LAN Status LEDs (4 indicators)
Blue
If the LED is on, the link between the port and the next piece of network
equipment is OK. If the LED is flashing, the link is OK and data is being
transmitted or received. If the LED is off, nothing is connected, or the
connected device is switched off, or there is a problem with the
connection (refer to Chapter 6 Troubleshooting). The port will
automatically adjust to the correct speed and duplex.
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Physical Features
17
7 WPS LED
Blue
WiFi Protected Setup (WPS) is a standard for easy and secure
establishment of a wireless network, allowing wireless clients to connect
securely to routers and access points. The WPS LED shows the status of
the WPS function. It has a number of modes to help monitor the status of
clients connecting to the Router using the WPS protocol. The status is
shown by three different flashing rates: slow, medium and quick and
when light constantly.
Note: The WPS function will be enabled for 2 minutes once WPS is
enabled either by pressing the button or by starting the PIN mode via the
web interface. This time will end before 2 minutes if a client has
successfully connected. Only one client should be connected to the
Router using WPS at any one time. Attempting to connect two or more
clients at once may result in connection failures.
When the WPS button is pressed, or WPS is initiated using the PIN
method in the web interface, the WPS LED will flash at a medium rate for
up to 2 minutes to indicate that a WPS connection can be made. When a
connection attempt is underway, the LED will flash slowly.
If the connection has been successful, the WPS LED will remain
illuminated for 5 minutes. If the connection attempt has failed, the WPS
LED will flash rapidly for 5 minutes. You can re-try the connection by
pressing the WPS button, when the connection process will re-start.
If you want to add a further client to the Router, you do not need to wait
for the 5 minute period to end. You can press the WPS button (or use the
PIN method via the web interface) as soon as the first client is successfully
connected.
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18
CHAPTER 1: INTRODUCING THE ROUTER
The rear panel (Figure 5) of the Router contains one ADSL port, four LAN
ports, one WiFi on/off button, a reset button, one power adapter socket,
and one WPS button.
Figure 5 Router - Rear Panel
1 Wireless Antennae
The antennaes should be placed in a ‘V’ position when initially installed.
CAUTION: Do not force the antennae beyond their mechanical stops.
Rotating the antennae further may cause damage.
2 ADSL Port
RJ-11 port (3CRWDR300A-73)/ RJ-45 port (3CRWDR300B-73), connect
this port with the telephone socket.
3 Ethernet Ports (4 ports)
Using suitable RJ-45 cables, you can connect your Router to a computer,
or to any other piece of equipment that has an Ethernet connection (for
example, a hub or a switch). These ports have an automatic MDI/MDIX
feature, which means either straight-through or a crossover cable can be
used.
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Physical Features
19
Use this button to turn on/turn off the wireless function. Press the button
for 3 seconds.
5 Reset Button
If you want to reset your Router to factory default settings, or cannot
access the web management interface (for example, due to a lost
password), then you may use this button. Refer to Forgotten Password
and Reset to Factory Defaults on page 138 for further details.
6 Power Adapter Socket
Only use the power adapter that is supplied with this Router. Do not use
any other adapter.
7 WPS button
Press this button for 3 seconds when making WPS setup. Pushing the
WPS button will automatically enable WPS. Then initiate the WPS
procedure on the wireless NIC within two minutes. Refer to your wireless
NIC's documentation on this procedure. The wireless NIC will then be
securely added to your wireless network.
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20
CHAPTER 1: INTRODUCING THE ROUTER
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INSTALLING THE ROUTER
2
Introduction
This chapter will guide you through a basic installation of the Router,
including:
■
■
■
Connecting the Router to the Internet.
Connecting the Router to your network.
Setting up your computers for networking with the Router.
Safety Information Please note the following:
WARNING: Please read the Safety Information section in Appendix C
before you start.
VORSICHT: Bitte lesen Sie den Abschnitt Wichtige Sicherheitshinweise
sorgfältig durch, bevor Sie das Gerät einschalten.
AVERTISSEMENT: Veuillez lire attentivement la section Consignes
importantes de sécurité avant de mettre en route.
Positioning the
Router
You should place the Router in a location that:
■
is conveniently located for connection to the telephone socket.
■
is centrally located to the wireless computers that will connect to the
Router. A suitable location might be on top of a high shelf or similar
furniture to optimize wireless connections to computers in both
horizontal and vertical directions, allowing wider coverage.
■
■
allows convenient connection to the computers that will be connected
to the four LAN ports on the rear panel, if desired.
allows easy viewing of the LED indicator lights, and access to the rear
panel connectors, if necessary.
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22
CHAPTER 2: INSTALLING THE ROUTER
When positioning your Router, ensure:
■
■
It is out of direct sunlight and away from sources of heat.
Cabling is away from power lines, fluorescent lighting fixtures, and
sources of electrical noise such as radios, transmitters and broadband
amplifiers.
■
■
Water or moisture cannot enter the case of the unit.
Air flow around the unit and through the vents in the side of the case
is not restricted. 3Com recommends you provide a minimum of
25 mm (1 in.) clearance.
Using the Rubber Use the four self-adhesive rubber feet to prevent your Router from
Feet moving around on your desk or when stacking with flat top units. Only
stick the feet to the marked areas at each corner of the underside of your
Router.
Please be careful when you put 3Com 11n ADSL Router on top of
another unit, if the unit underneath is hot, this may impact the reliability
of 3Com 11n ADSL Router.
Wall Mounting
There are two slots on the underside of the Router that can be used for
wall mounting. The Router must be mounted with the LEDs facing
upwards.
When wall mounting the unit, ensure it is within reach of the power
outlet. When wall mounting the unit, ensure that the rubber feet are not
fixed.
Mounting To wall mount the unit:
Instructions for
Cement Walls
1 Make two holes 98 mm (3.9 in.) apart and insert two nylon or similar
screw anchors that are suitable for the wall construction.
2 Fix two suitable screws into the anchors, leaving their heads 3 mm (0.12
in.) clear of the wall surface. The screws should be at least 30 mm (1.2
in.) long.
3 Remove any connections in the Router and locate it over the screw heads.
When in line, gently push the Router on to the wall and move it
downwards to secure.
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Powering Up the Router
23
Mounting To wall mount the unit:
Instructions for
Wood Walls
1 Make two holes 98 mm (3.9 in.) apart.
2 Fix two suitable screws directly into the wall, leaving their heads 3 mm
(0.12 in.) clear of the wall surface. The screws should be at least 20 mm
(0.75 in.) long.
3 Remove any connections in the Router and locate it over the screw heads.
When in line, gently push the Router on to the wall and move it
downwards to secure.
CAUTION: When making connections, be careful not to push the unit up
and off the wall.
Powering Up the
Router
To power up the Router:
back panel of the Router.
2 Plug the power adapter into a standard electrical wall socket.
Connecting the
Router
The first step for installing your Router is to physically connect it to the
telephone socket and then connect it to a computer in order to be able to
access the Internet. See Figure 6 and Figure 7:
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24
CHAPTER 2: INSTALLING THE ROUTER
Figure 6 Connecting the Router (with splitter)
Figure 7 Connecting the Router (without splitter)
1 Run the provided telephone cable from the wall jack providing ADSL
service to the ADSL port on your Router. When inserting an ADSL
RJ-11(Annex A) or RJ-45 (Annex B) plug, be sure the tab on the plug
clicks into position to ensure that it is properly seated. If you are using
splitterless ADSL service, add low-pass filters between the ADSL wall jack
and your telephones. (These filters pass voice signals through but filter
data signals out.)
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Connecting the Router
25
2 Then:
■
If you are using a full-rate (G.dmt) connection, your service provider
will attach the outside ADSL line to a data/voice splitter. In this case
shown below (Figure 8):
or
■
If you are using a splitterless (G.lite) connection, then your service
provider will attach the outside ADSL line directly to your phone
system. In this case you can connect your phones and computer
directly to the incoming ADSL line, but you will have to add low-pass
filters to your phones as shown below (Figure 9)
Figure 8 Installing with a splitter
Plain Old
Telephone
System (POTS)
Voice
Residential
Connection
Point (NID)
Splitter
Data
ADSL Router
or
Ethernet
switch
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26
CHAPTER 2: INSTALLING THE ROUTER
Figure 9 Installing without a splitter
Plain Old
Telephone
System (POTS)
Voice
Residential
Connection
Point [Network
Interface
Filter
Voice
& Data
Device (NID)]
Voice
& Data
ADSL Router
Data
or
Ethernet
switch
You have now completed the hardware installation of your Router. Next
you need to set up your computers so that they can make use of the
Router to communicate with the Internet.
3Com recommends that you perform the initial Router configuration
from a computer that is directly connected to one of the LAN ports.
If you configure the Router from a wireless computer, note that you may
lose contact with the Router if you change the wireless configuration.
To communicate wirelessly with your Router, your wireless NIC should be
set as follows:
■
■
■
Encryption — none
SSID — 3Com
Channel — 11
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SETTING UP YOUR COMPUTERS
3
The Router has the ability to dynamically allocate network addresses to
the computers on your network, using DHCP. However, your computers
need to be configured correctly for this to take place. To change the
configuration of your computers to allow this, follow the instructions in
this chapter.
Obtaining an IP
Address
Automatically
Windows 2000 If you are using a Windows 2000-based computer, use the following
1 From the Windows Start Menu, select Settings > Control Panel.
2 Double click on Network and Dial-Up Connections.
3 Double click on Local Area Connection.
4 Click on Properties.
5 A screen similar to Figure 10 should be displayed. Select Internet Protocol
TCP/IP and click on Properties.
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28
CHAPTER 3: SETTING UP YOUR COMPUTERS
Figure 10 Local Area Properties Screen
6 Ensure that the options Obtain an IP address automatically, and Obtain
DNS server address automatically are both selected as shown in
Figure 11. Click OK.
Figure 11 Internet Protocol (TCP/IP) Properties Screen
7 Restart your computer.
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Obtaining an IP Address Automatically
29
Windows Vista
1 From the Windows Start Menu, select Settings > Network.
2 Click on Organize. Select Properties.
3 Click on Manage network > Connections.
4 Double click Local Area Connection. Select Properties and click continue.
5 A screen similar to Figure 12 should appear. Select Internet Protocol
Version 6,Version 4 (TCP/IPv6,v4) and click on Properties.
Figure 12 Local Area Connection Properties Screen
6 Ensure that the options Obtain an IPv6,v4 address automatically, and
Obtain DNS servers address automatically are both selected as shown in
Figure 13. Click OK.
Figure 13 Internet Protocol Version 6 (TCP/IPv6) Properties Screen
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30
CHAPTER 3: SETTING UP YOUR COMPUTERS
Windows XP
1 From the Windows Start Menu, select Control Panel.
2 Click on Network and Internet Connections.
3 Click on the Network Connections icon.
4 Double click on LAN or High Speed Connection icon. A screen titled Local
Area Connection Status will appear.
5 Select Internet Protocol TCP/IP and click on Properties.
6 Ensure that the options Obtain an IP address automatically, and Obtain
DNS servers automatically are both selected. Click OK.
7 Restart your computer.
Macintosh If you are using a Macintosh computer, use the following procedure to
change your TCP/IP settings:
1 From the desktop, select Apple Menu, Control Panels, and TCP/IP.
2 In the TCP/IP control panel, set Connect Via: to Ethernet.
3 In the TCP/IP control panel, set Configure: to Using DHCP Server.
4 Close the TCP/IP dialog box, and save your changes.
5 Restart your computer.
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Disabling PPPoE and PPTP Client Software
31
Disabling PPPoE
and PPTP Client
Software
If you have PPPoE client software installed on your computer, you will
need to disable it. To do this:
1 From the Windows Start Menu, select Settings > Control Panel.
2 Double click on Internet Options.
3 Select the Connections Tab. A screen similar to Figure 14 should be
displayed.
4 Select the Never dial a connection option.
Figure 14 Internet Properties Screen
You may want to remove the PPPoE client software from your computer
to free resources, as it is not required for use with the Router.
Disabling Web
Proxy
Ensure that you do not have a web proxy enabled on your computer.
Go to the Control Panel and click on Internet Options. Select the
Connections tab and click LAN Settings at the bottom. Make sure that
the Use Proxy Server option is unchecked.
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32
CHAPTER 3: SETTING UP YOUR COMPUTERS
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RUNNING THE SETUP WIZARD
4
Accessing the
Router using the
3Com Detect
Application
The 3Com Detect application works by automatically locating your
Router, establishing what IP address it is using and then launching your
default web browser to connect directly to it.
The application will only locate your Router if it is on the same subnet as
the PC on which the application is running. It will not be able to locate
your Router if there is another router between your PC and the Router.
Note that the 3Com detect application is only designed to run on
Windows operating systems.
Running the 3Com The CD-ROM that comes with this Router contains, in addition to the
Detect Application documentation, the 3Com Detect Application.
To use 3Com Detect to connect to the Web interface of your Router, do
the following:
On the computer that is connected to your Router (either directly or on a
network that is on the same subnet), insert the CD-ROM into its CD drive.
If you have autorun enabled, you will be presented with a menu showing
the contents of the CD-ROM. Select the 3Com Detect Application link to
install the utility. Follow the onscreen instructions.
If the auto-run program does not start, you should browse to your
setup.exe. Follow the prompts that will take you through the installation
process.
Once installed, the 3Com Detect Application can be accessed from the
Windows Start/Programs list.
When the 3Com Detect application starts, you will see the Welcome
Screen, see Figure 15.
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34
CHAPTER 4: RUNNING THE SETUP WIZARD
Figure 15 3Com Detect Application
If the computer has multiple network adapters, select the adapter that
connects the computer to the network or the Router, click Next.
You will then be offered the choice of searching the same subnet that
your PC is on for a connected Router (default), or specifying an IP range.
Note that specifying a large range may take some time for the search to
complete (see Figure 16 and Figure 17).
Figure 16 Discovery Screen - search the same subnet
Figure 17 Discovery Screen - search IP range
Once your Router has been located, you will see the list (see Figure 18).
Select the Router to which you want to connect and click Open. Your
default Web browser will launch and connect to the home page of the
Router, see Figure 20.
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Accessing the Setup Wizard
35
Figure 18 Router List Screen
Accessing the Setup
Wizard
The Router setup program is Web-based, which means that it is accessed
through your Web browser (Netscape Navigator 4.7 or higher, Internet
Explorer 6.0 or higher, or Mozilla 1.2.1 or higher, or Apple’s Safari).
To use the Setup Wizard:
1 Ensure that you have at least one computer connected to the Router.
Refer to Chapter 2 for details on how to do this.
2 Launch your Web browser on the computer.
3 Enter the following URL in the location or address field of your browser:
http://192.168.1.1 (Figure 19). The Login screen displays.
Figure 19 Web Browser Location Field (Factory Default)
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36
CHAPTER 4: RUNNING THE SETUP WIZARD
4 To log in as an administrator, enter the password (the default password is
admin) in the System Password field and click Log in (see Figure 20).
Figure 20 Router Login Screen
5 When you have logged in,
■
if you are logging in for the first time, the Country Selection screen
will appear (see Figure 21). Please select the country form the
drop-down menu, and click Apply.
1. To comply with US FCC regulations, operation for any country is limited
to channels from 1 to 11.
2. Customers outside of the US, Canada or Taiwan can download the
firmware from the 3Com website (www.3com.com) which will enable
operation on channels 12-13. You will be asked to verify your country
before you can download the firmware what will enable the wider
range of channels to be used.
Figure 21 Country Selection Screen
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Accessing the Setup Wizard
37
The Wizard will then launch automatically (refer to Figure 24). You will be
guided step by step through a basic setup procedure.
■
if the Router has been configured previously, the Welcome screen will
appear (Figure 22). There are three tabs: Notice Board, Password and
Wizard.
Figure 22 Welcome Screen
■
Go to the Notice Board tab to see the current software information. To
view the Web help, click the Help button.
■
■
Go to the Password tab to change the password (Figure 23).
Go to the Wizard tab to do a quick setup of the Router (Figure 24).
The password screen allows you to change the current password and set
the login time limit to the Router’s management interface.
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38
CHAPTER 4: RUNNING THE SETUP WIZARD
Figure 23 Password Screen
1 To change the current password, enter the password in the Current
Password field.
2 Enter the new password in the New Password field, and enter it again in
the Confirm New Password field.
3 Enter the time period in Login Timeout to set a maximum period of time
for which the login session is maintained during inactivity
(default: 10 minutes). Then click Apply.
Wizard - Change To ensure the security of your Router, it is recommended that you choose
Password a new password - this should be a mix of letters and numbers, and not
easily guessed by others. To leave the current password unchanged, leave
the fields blank and click Next.
Figure 24 Change Password Screen
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Accessing the Setup Wizard
39
Wizard - Time and The Time and Time Zone screen allows you to set up the time for the
Time Zone Router.
Figure 25 Time and Time Zone Screen
1 Select the correct base date and time.
2 If you want to automatically synchronize the Router with a public time
server, check the Enable box in the Using Time Server (NTP) field.
3 Select the time zone in the Set Time Zone drop-down menu.
4 Enter the time in the Synchronization Interval field.
5 Select the desired servers from the Time Server drop-down menu.
6 Check the Enable box in the Daylight Savings field, if daylight savings
applies to your area.
7 Click Next.
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40
CHAPTER 4: RUNNING THE SETUP WIZARD
Wizard - Connection The Connection Type screen allows you to set up the Router for the type
Type of Internet connection you have. Before setting up your connection type,
have your account information from your ISP ready.
Figure 26 Connection Type Screen
Select a mode from the following options, and click Next:
■
PPPoE — PPP over Ethernet, providing routing for multiple PCs,
see page 41
■
PPPoA — PPP over ATM, providing routing for multiple PCs,
see page 42
■
■
Routing Mode over ATM — RFC1483 Routed Mode, for multiple PCs,
see page 44
■
Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs) — see
page 45
For further information on selecting a mode see Internet Settings on
page 76.
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Accessing the Setup Wizard
41
PPPoE
PPPoE is often used for DSL connection. To set up the Router for use with
a PPPoE (PPP over Ethernet) connection, use the following procedure:
Figure 27 PPPoE Screen
1 Enter your user name in the Username field.
2 Enter your password in the Password field.
3 Re-type your password in the Retype Password field.
4 Enter your VPI and VCI information in the VPI/VCI fields.
5 Select the encapsulation type (LLC or VC MUX) in the Encapsulation
drop-down menu. This information should be provided to you by your ISP.
Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 32).
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42
CHAPTER 4: RUNNING THE SETUP WIZARD
PPPoA
To set up the Router for use with a PPP over ATM (PPPoA) connection, use
the following procedure:
Figure 28 PPPoA Screen
1 Enter your user name in the Username field.
2 Enter your password in the Password field.
3 Re-type your password in the Retype Password field.
4 Enter your VPI and VCI information in the VPI/VCI fields.
5 Select the encapsulation type (LLC or VC MUX) in the Encapsulation
drop-down menu. This information should be provided to you by your ISP.
Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 32).
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Accessing the Setup Wizard
43
Bridge Mode (for a single PC)
Selecting the Bridge mode sets the device into 1483 bridging mode in
which the device connects LANs and WAN together. It operates as a Data
Link Layer device that acts to limit the traffic between two network
segments by filtering the data between them based on the hardware
address.
To set up the Router for use with an RFC1483 bridged connection, use
the following procedure:
Figure 29 Bridged Mode Screen
1 Enter your VPI and VCI information in the VPI/VCI fields.
2 Select the encapsulation type (LLC or VC MUX) in the Encapsulation
drop-down menu. This information should be provided to you by your ISP.
Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 32).
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44
CHAPTER 4: RUNNING THE SETUP WIZARD
Routing Mode over ATM
The Routing Mode over ATM uses fixed/static IP addresses, which are
provided by your ISP, to connect to the Internet. Obtain the information
on this screen from your ISP.
Figure 30 Routing mode over ATM Screen
1 Enter your Internet IP address in the WAN IP field.
2 Enter the subnet mask in the Subnet Mask field.
4 Enter the DNS address in the DNS field.
5 Enter your VPI and VCI information in the VPI/VCI fields.
6 Select the encapsulation type (LLC or VC MUX) in the Encapsulation
drop-down menu. This information should be provided to you by your ISP.
Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 32).
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Accessing the Setup Wizard
45
Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs)
For bridge mode to work, you need to assign an IP address to the Router.
You can either configure the Router to obtain an IP address automatically
from a DHCP server or assign a fixed or static IP address to it.
Figure 31 Dynamic/Fixed IP for Bridge Mode Screen
■
■
To obtain an IP address automatically from a DHCP server: check the
Get WAN IP By DCHP checkbox, and then click Next.
To assign a fixed IP address:
1 Enter your IP address in the WAN IP field.
2 Enter the subnet mask in the Subnet Mask field.
4 Enter the DNS address in the DNS field.
5 Enter your VPI and VCI information in the VPI/VCI fields.
6 Select the encapsulation type (LLC or VC MUX) in the Encapsulation
drop-down menu. This information should be provided to you by your ISP.
Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 32).
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46
CHAPTER 4: RUNNING THE SETUP WIZARD
Wizard - LAN Settings The LAN Settings screen allows you to set the default IP address and
DHCP client IP range for the Router.
Figure 32 The LAN Settings Screen
1 To change the Router’s default IP address, enter the new IP address in the
IP Address field, and then enter the subnet mask in the Subnet Mask
field.
2 Check the Enable DHCP Server box to enable the DHCP function.
3 Enter the client IP address range in the IP Pool Start Address and IP Pool
End Address fields. You can also click Auto IP Range to automatically set
the starting and ending IP address: 192.168.1.2 ~ 192.168.1.254.
4 Click Next. The Wireless Settings screen will appear (refer to Figure 33).
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Accessing the Setup Wizard
47
Wizard - Wireless The Wireless Settings screen allows you to set up the SSID and radio
Setting channel used for the wireless connection.
Figure 33 Wireless Setting Screen
1 Select the channel you want to use from the Channel drop-down menu.
2 Specify the SSID to be used by your wireless network in the SSID field. If
there are other wireless networks in your area, you should give your
wireless network an unique name.
For advanced settings, please click Wireless Settings on the left menu bar
after completing this Setup Wizard setting.
3 Click Next. The security mode screen appears.
Security Mode
Select the Security Mode, five options available:
■
Disabled: in this mode, wireless transmissions will not be
encrypted, and will be visible to everyone. However, when setting
up or debugging wireless networks, it is often useful to use this
security mode.
■
■
■
64-bit WEP, see page 48
128-bit WEP, see page 49
WPA-PSK (no server), this mode includes WPA and WPA2,
see page 50
■
WPA (with Radius Server), this mode includes WPA and WPA2,
see page 51
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48
CHAPTER 4: RUNNING THE SETUP WIZARD
Figure 34 Security Mode Screen
64-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be setup on your
Router and wireless client devices to use WEP.
Figure 35 64-bit WEP Screen
To enable 64-bit WEP:
1 You can enter the 64-bit WEP key manually. Enter the WEP key as 5 pairs
of hex digits (0-9, A-F). Or you can generate the 64-bit WEP key
automatically. Enter a memorable passphrase in the Passphrase box, and
then click Generate to generate the hex keys from the passphrase.
For 64-bit WEP, you can enter up to four keys, in the fields Key 1 to Key 4.
The radio button on the left hand side selects the key that is used in
transmitting data.
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Accessing the Setup Wizard
49
2 Click Next.
Note that all four WEP keys on each device of the same wireless network
must be identical.
128-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be set up on your
Router and wireless client devices to use WEP.
Figure 36 128-bit WEP
To enable 128-bit WEP:
1 You can enter the 128-bit WEP key manually, enter your WEP key as 13
pairs of hex digits (0-9, A-F). Or you can generate the 128-bit WEP key
automatically, enter a memorable passphrase in the Passphrase box, and
then click Generate to generate the hex keys from the passphrase.
2 Click Next.
Note that the WEP keys on each device of the same wireless network
must be identical. And In 128-bit WEP mode, only one WEP key can be
specified.
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50
CHAPTER 4: RUNNING THE SETUP WIZARD
WPA-PSK (no server)
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. If your network does not have a
RADIUS server. Select the no server option. Note that in home and very
small office deployments, PSK is typically used.
Figure 37 WPA-PSK no server Screen
1 Select WPA-PSK (no server) from the WPA drop-down menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
WPA supports TKIP and AES Encryption technique, for some old module
of wireless client cards, they may only support TKIP. In this case, we
suggest you to select “AUTO for WPA, AES for WPA2”. If your wireless
client cards can support AES over WPA, we suggest you directly select
“AES for both WPA and WPA2”.
4 Enter the pre-shared key in the Pre-shared Key (PSK) field. The pre-shared
key is a password, in the form of a word, phrase or series of letters and
numbers. The key must be between 8 and 63 characters long and can
include spaces and symbols. Each client that connects to the network
must use the same key.
5 If you want the key that you enter to be shown on the screen as a series
of asterisks (*), then check the Hide PSK checkbox.
6 Click Next.
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Accessing the Setup Wizard
51
WPA with Radius Server
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. This function requires that a
RADIUS server is running on the network.
Figure 38 WPA with Radius Server Screen
1 Select WPA with RADIUS server from the Security Mode drop-down
menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
WPA supports TKIP and AES Encryption technique, for some old module
of wireless client cards, they may only support TKIP. In this case, we
suggest you to select “AUTO for WPA, AES for WPA2”. If your wireless
client cards can support AES over WPA, we suggest you directly select
“AES for both WPA and WPA2”.
4 Enter the IP address of the RADIUS server on your network into the
RADIUS Server field.
5 Enter the Radius Port number that the RADIUS server is operating on.
6 Enter the key for the RADIUS server in the Radius Key field.
7 By default, the WPA keys are changed every hour, but if you want to
change this setting, you can do so by specifying the rotation time in the
Re-key Interval field.
8 Click Next.
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52
CHAPTER 4: RUNNING THE SETUP WIZARD
Wizard - When you have completed the Setup Wizard, a configuration summary
Configuration will appear. Verify the configuration information of the Router and then
Summary click Apply to save your settings. 3Com recommends that you print out
this page for your records.
Figure 39 Configuration Summary Screen
Your Router is now configured and ready for use.
See Chapter 5 for a further detailed description of the Router
configuration.
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CONFIGURING THE ROUTER
5
Navigating through
the Router
Configuration
Screens
This chapter describes all the screens available through the Router
configuration screens, and is provided as a reference. To get to the
your browser. The default IP is http://192.168.1.1.
However, if you changed the Router LAN IP address during initial
configuration, use the new IP address instead. Enter your password to
login to the management interface. (The default password is admin).
Main Menu The main menu is located on the left side, as shown in Figure 40. When
you click on an item from the main menu, the corresponding screen will
then appear in the center.
Welcome Screen
The Welcome screen shows the current software information.
Status Figure 40 Welcome Screen
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54
CHAPTER 5: CONFIGURING THE ROUTER
LAN Settings
Your Router is equipped with a DHCP server that will automatically assign
IP addresses to each computer on your network. The factory default
settings for the DHCP server will work with most applications. If you need
to make changes to the settings, you can do so.
The LAN settings screen allows you to:
■
Change the default IP address of the Router. The default IP is
192.168.1.1
■
■
■
Change the Subnet Mask. The default setting is 255.255.255.0
Enable/Disable the DHCP Server Function. The default is: Enable.
Specify the Starting and Ending IP Pool address. The default is
Starting: 2 / Ending: 254.
■
■
■
Specify the IP address Lease Time. The default is One day.
Specify a local Domain Name. This field is optional.
Specify the IP address of 3Com NBX call processor.
The Router will also provide a list of all client computers connected to the
Router.
LAN Settings Unit The LAN Settings unit configuration screen is used to specify the LAN IP
Configuration address of your Router, and to configure the DHCP server.
Figure 41 LAN Settings Unit Configuration Screen
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LAN Settings
55
1 Enter the Router’s IP Address and Subnet Mask in the appropriate fields.
The default IP address is 192.168.1.1.
2 If you want to use the Router as a DHCP Server, check Enable in the DHCP
Server field.
3 Enter the IP address range in the IP Pool Start Address and IP Pool End
Address fields.
4 Specify the DHCP Lease time by selecting the required value from the
Lease Time drop-down menu. The lease time is the length of time the
DHCP server will reserve the IP address for each computer.
5 Specify the Local Domain Name for your network (this step is optional).
6 Enter the IP address of the NBX Call Processor in the 3Com NBX Call
Processor field (this step is optional).
7 Check all of your settings, and then click Apply.
DHCP Clients List The DHCP Clients List provides details on the devices that have received IP
addresses from the Router. The list is only created when the Router is set
up as a DHCP server. A maximum of 253 clients can be connected to the
Router.
Figure 42 DHCP Clients List Screen
For each device that is connected to the LAN, the following information is
displayed:
■
IP address — The Internet Protocol (IP) address issued to the client
machine.
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56
CHAPTER 5: CONFIGURING THE ROUTER
■
■
Host Name — The client machine’s host name, if configured.
MAC Address — The Media Access Control (MAC) address of the
client’s network card.
■
Client Type — Whether the client is connected to the Router by wired
or wireless connection.
■
■
■
Check the Fix checkbox to permanently fix the IP address.
Click Release to release the displayed IP address.
Click Add to allocate an IP address to a MAC address. Enter the
required details and click Apply to save your settings.
The DHCP server will give out addresses to both wired and wireless
clients.
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Wireless Settings
57
Wireless Settings
The Wireless Settings screens allow you to configure the settings for the
wireless connections.
You can enable or disable the wireless connection for your LAN. When
disabled, no wireless PCs can gain access to either the Internet or other
PCs on your wired or wireless LAN through this Router.
Figure 43 Wireless Settings Screen
There are 8 tabs available:
■
■
■
■
■
■
■
■
Configuration
Encryption
WPS
Connection Control
Client List
WMM
WDS
Advanced
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58
CHAPTER 5: CONFIGURING THE ROUTER
Configuration The Wireless Configuration Screen allows you to turn on/ turn off the
wireless function, and set up basic wireless settings. You can also
enable/disable the Wireless function using the WiFi on/off button at the
back of the Router.
Figure 44 Wireless Configuration Screen
To enable the wireless function:
1 Check Enable Wireless Networking checkbox.
2 Select the wireless channel you want to use from the Channel drop-down
menu.
3 Select the Extension Channel.
4 Specify the SSID to be used by your wireless network in the SSID field. If
there are other wireless networks in your area, you should give your
wireless network an unique name.
5 Enable or disable SSID Broadcast.
A feature of many wireless network adapters is that a computer's SSID
can be set to ANY, which means it looks randomly for any existing
wireless network. The available networks are then displayed in a site
survey, and your computer can select a network. If you disable this SSID
broadcast function, you can block this random search, and set the
computer's SSID to a specific network (for example, WLAN). This
increases network security. If you decide to disable SSID Broadcast, ensure
that you know the name of your network first.
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Wireless Settings
59
6 Select whether your Router will operate in 11b mode only, 11g mode
only, 11n mode only, or mixed mode from the Wireless Mode drop-down
menu. If your network contains 11b, 11g, and 11n clients, select the
mixed mode. If your network contains just one type of clients only, select
11b only, or 11g only, or 11n only, depending on your wireless network
environment. Note that selecting one type of wireless network only will
improve the performance, however, this will prevent clients of other type
from connecting to the Router.
7 Bandwidth: select the bandwidth to use. Select 20/40 MHz when your
wireless mode is 802.11n or 11n with 11b, 11 g mixed mode. If your
wireless network is purely 11b only or 11g only, or 11b and 11g mixed,
select 20 MHz.
8 Select to turn on/off the Protected Mode function. As part of the
802.11g & 802.11n specification, Protected mode ensures proper
operation of 802.11g & 802.11n clients and access points when there is
heavy 802.11b traffic in the operating environment. When protected
mode is ON, 802.11g & 802.11n scans for other wireless network traffic
before it transmits data. Therefore, using this mode in environments with
HEAVY 802.11b traffic or interference achieves best performance results.
If you are in an environment with very little, or no other wireless network
traffic, your best performance will be achieved with Protected mode OFF.
9 Click Apply.
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60
CHAPTER 5: CONFIGURING THE ROUTER
Encryption This feature prevents any non-authorized party from reading or changing
your data over the wireless network.
Figure 45 Encryption Screen
drop-down menu, and click Apply. There are five selections:
■
■
■
■
Disabled
64-bit WEP (see page 61)
128-bit WEP (see page 62)
WPA-PSK (no server): this option includes both WPA and WPA2
(see page 63)
■
WPA (with RADIUS Server): this option includes both WPA and WPA2
(see page 64)
Disabled
In this mode, wireless transmissions will not be encrypted, and will be
visible to everyone. However, when setting up or debugging wireless
networks, it is often useful to use this security mode.
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Wireless Settings
61
64-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be setup on your
Router and wireless client devices to use WEP. Note that 3Com
recommends using WPA/WPA2 to secure your wireless connection.
Figure 46 64-bit WEP Screen
To setup 64-bit WEP:
1 You can enter the 64-bit WEP key manually:
■
enter the WEP key as 5 pairs of hex digits (0-9, A-F).
Or you can generate the 64-bit WEP key automatically:
■
enter a memorable passphrase in the Passphrase field, and then
click Generate to generate the hex keys from the passphrase.
For 64-bit WEP, you can enter up to four keys, in the fields Key 1 to Key 4.
The radio button on the left hand side selects the key that is used in
transmitting data.
Note that all four WEP keys on each device in the wireless network must
be identical.
2 Click Apply.
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62
CHAPTER 5: CONFIGURING THE ROUTER
128-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be set up on your
Router and wireless client devices to use WEP. Note that 3Com
recommends using WPA/WPA2 to secure your wireless connection.
Figure 47 128-bit WEP Screen
To setup 128-bit WEP:
1 You can enter the 128-bit WEP key manually:
■
enter your WEP key as 13 pairs of hex digits (0-9, A-F).
Or you can generate the 128-bit WEP key automatically:
■
enter a memorable passphrase in the Passphrase field, and then
click Generate to generate the hex keys from the passphrase.
The WEP keys on each device on the wireless network must be identical.
In 128-bit WEP mode, only one WEP key can be specified.
2 Click Apply.
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Wireless Settings
63
WPA-PSK (no server)
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. If your network does not have a
RADIUS server. Select the no server option. For home network or very
small business networking environment, PSK is typically used.
Figure 48 WPA-PSK (no server) Screen
1 Select WPA-PSK (no server) from the WPA drop-down menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
WPA supports TKIP and AES Encryption technique, for some old module
of wireless client cards, they may only support TKIP. In this case, we
suggest you to select “AUTO for WPA, AES for WPA2”. If your wireless
client cards can support AES over WPA, we suggest you directly select
“AES for both WPA and WPA2”.
4 Enter the pre-shared key in the Pre-shared Key (PSK) field. The pre-shared
key is a password, in the form of a word, phrase or series of letters and
numbers. The key must be between 8 and 63 characters long and can
include spaces and symbols. Each client that connects to the network
must use the same key.
5 If you want the key that you enter to be shown on the screen as a series
of asterisks (*), then check the Hide PSK checkbox.
6 Click Apply.
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64
CHAPTER 5: CONFIGURING THE ROUTER
WPA (with RADIUS Server)
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. This function requires that a
RADIUS server is running on the network.
Figure 49 WPA (with RADIUS Server) Screen
1 Select WPA with RADIUS server from the Security Mode drop-down
menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
WPA supports TKIP and AES Encryption technique, for some old module
of wireless client cards, they may only support TKIP. In this case, we
suggest you to select “AUTO for WPA, AES for WPA2”. If your wireless
client cards can support AES over WPA, we suggest you directly select
“AES for both WPA and WPA2”.
4 Enter the IP address of the RADIUS server on your network into the
RADIUS Server field.
5 Enter the port number that the RADIUS server is operating on in the
RADIUS Port field.
6 Enter the key for the RADIUS server in the RADIUS Key field.
7 By default, the WPA keys are changed every hour, but if you want to
change this setting, you can do so by specifying the required time in the
Re-key Interval field.
8 Click Apply.
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Wireless Settings
65
WPS Wi-Fi Protected Setup (WPS) integrates the new WLAN clients into your
wireless network easily. You can enable this function by entering the PIN
code via the web UI page or by pressing the WPS button on the rear side
of the device.
Figure 50 WPS Screen
Two methods to setup the WPS, you can choose either one of the
following method. Note that if you choose to use the PBC mode, then it
would be no need to enter the PIN code of the wireless NIC on this
screen.
■
PIN
1 Check the Enable WPS Function box. The WPS-PIN field will appear.
2 Enter the PIN code in the WPS-PIN field. And then click Apply.
Please note that the PIN code is generated this way: on the client side,
run the WPS utility which is provided by the vendor of your Wi-Fi card
and select the PIN method. You should get an 8-digit PIN number from
the WPS utility.
Enter that 8-digit PIN number on this screen and click Apply to activate
this PIN method. Then the Router starts to negotiate the security with the
WLAN clients and WPS LED will start flashing. After the connection has
been established successfully, the WPS LED will then be off.
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66
CHAPTER 5: CONFIGURING THE ROUTER
■
WPS-PBC
1 Press the WPS button located on the rear of the Router. Note that this
setup process will only be active for 2 minutes. Follow the instruction of
your WLAN NIC to set up the WPS.
The WPS LED shows the status of the WPS function. It has a number of
modes to help monitor the status of clients connecting to the Router
using the WPS protocol. The status is shown by three different flashing
rates: slow, medium and quick and when light constantly.
When the WPS button is pressed, or WPS is initiated using the PIN
method in the web interface, the WPS LED will flash at a medium rate for
up to 2 minutes to indicate that a WPS connection can be made. When a
connection attempt is underway, the LED will flash slowly.
If the connection has been successful, the WPS LED will remain
illuminated for 5 minutes. If the connection attempt has failed, the WPS
LED will flash rapidly for 5 minutes. You can re-try the connection by
pressing the WPS button, when the connection process will re-start.
If you want to add a further client to the Router, you do not need to wait
for the 5 minute period to end. You can press the WPS button (or use the
PIN method via the web interface) as soon as the first client is successfully
connected.
Note: The WPS function will be enabled for 2 minutes once WPS is
enabled either by pressing the button or by starting the PIN mode via the
web interface. This time will end before 2 minutes if a client has
successfully connected. Only one client should be connected to the
Router using WPS at any one time. Attempting to connect two or more
clients at once may result in connection failures.
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Wireless Settings
67
Connection Control This feature is used to filter the clients based on their MAC addresses.
Using this function, you can limit the access right of the wireless clients to
this Router.
Check the Enable MAC Address Filtering checkbox, the Connection
Control screen will appear.
Figure 51 Connection Control Screen
There are two options available in the Access rule for registered MAC
address field:
■
if you click Allow, this means only the MAC addresses registered here
in the list will be allowed to access the Router via wireless link.
■
if you click Deny, this means the registered MAC addresses will not be
able to access the Router via wireless link.
Use the MAC Address Filtering List to quickly copy the MAC addresses of
the current wireless clients into the list table. You can define up to 32
MAC addresses to the list.
You can click Clear to delete the current entry in the list.
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CHAPTER 5: CONFIGURING THE ROUTER
Client List You can view the list of all wireless clients that are connected to the
Router.
Figure 52 Client List Screen
Click Refresh to update the list.
WMM Wireless Multimedia (WMM) mode, which supports devices that meet the
802.11E QBSS standard. WMM uses traffic priority based on the four
ACs; Voice, Video, Best Effort, and Background. The higher the AC
priority, the higher the probability that data is transmitted.
Check the Enable WMM Function box, the WMM parameters table
appears.
Figure 53 WMM Screen
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Wireless Settings
69
Access Categories – WMM defines four access categories (ACs): voice,
video, best effort, and background. These categories correspond to traffic
priority levels and are mapped to IEEE 802.1D priority tags. The direct
mapping of the four ACs to 802.1D priorities is specifically intended to
facilitate inter operability with other wired network QoS policies. While
the four ACs are specified for specific types of traffic, WMM allows the
priority levels to be configured to match any network-wide QoS policy.
WMM also specifies a protocol that access points can use to
communicate the configured traffic priority levels to QoS-enabled
wireless clients.
The following table explains the four access categories:
802.1D
Tags
Access Category WMM
Designation
Description
AC_BE (AC0)
Best Effort
Normal priority, medium
delay and throughput. Data
only affected by long delays.
Data from applications or
devices that lack QoS
capabilities.
0, 3
AC_BK (AC1)
Background
Lowest priority. Data with no 2, 1
delay or throughput
requirements, such as bulk
data transfers.
AC_VI (AC2)
AC_VO (AC3)
Video
Voice
High priority, minimum
delay. Time-sensitive data
such as streaming video.
5, 4
7, 6
Highest priority, minimum
delay. Time-sensitive data
such as VoIP (Voice over IP)
calls.
AIFS (Arbitration Inter-Frame Space) – The minimum amount of wait time
before the next data transmission attempt. Specify the AIFS value in the
range 0-15 microseconds.
CWMax (Maximum Contention Window) – The maximum upper limit of
the random backoff wait time before wireless medium access can be
attempted. The contention window is doubled after each detected
collision up to the CWMax value. Specify the CWMax value in the range
0-15 microseconds. Note that the CWMax value must be greater or equal
to the CWMin value.
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CHAPTER 5: CONFIGURING THE ROUTER
CWMin (Minimum Contention Window) – The initial upper limit of the
random backoff wait time before wireless medium access can be
attempted. The initial wait time is a random value between zero and the
CWMin value. Specify the CWMin value in the range 0-15 microseconds.
Note that the CWMin value must be equal or less than the CWMax value.
TXOP Limit (Transmit Opportunity Limit) – The maximum time an AC
transmit queue has access to the wireless medium. When an AC queue is
granted a transmit opportunity, it can transmit data for a time up to the
TxOp Limit. This data bursting greatly improves the efficiency for high
data-rate traffic. Specify a value in the range 0-65535 microseconds.
ACM – Admission Control Mode, for the access category. When enabled,
clients are blocked from using the access category. (Default: Disabled)
Ack Policy (WMM Acknowledge Policy) – By default, all wireless data
transmissions require the sender to wait for an acknowledgement from
the receiver. WMM allows the acknowledgement wait time to be turned
off for each Access Category (AC). Although this increases data
throughput, it can also result in a high number of errors when traffic
levels are heavy. (Default: Acknowledge)
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Wireless Settings
71
WDS The Router supports WDS (Wireless Distribution System). WDS enables
one or more Access Points to rebroadcast received signals to extend
range and reach, though this can affect the overall throughput of data.
Note that WDS implementation can vary from product to product. Hence
there is no guarantee that different products will interoperate. In
addition, the security settings for WDS links should be the same as the
one set up for your wireless clients.
Figure 54 Wireless WDS Settings Screen
1 Check the Enable WDS Function checkbox.
2 To refresh the list of available access points, click Rescan Wireless
Networking. If the MAC address of the desired APs is in the list of
scanned APs, you can simply check those APs to add them to the WDS.
3 Click Add to add the MAC address of the AP to the list, (up to 4 APs can
be added), the add WDS screen will appear (refer to Figure 55).
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CHAPTER 5: CONFIGURING THE ROUTER
Figure 55 Add WDS screen
On the add WDS screen, enter the MAC address of the access point, up
to 4 APs can be added to the AP MAC Address table, and click Apply.
Here is an example of how to setup two units of 3Com Router over WDS.
Note that when setting up two units of 3Com Router, you should disable
the DHCP function on one of the units.
Setting of the first Router:
■
Set the LAN IP setting, make sure the DHCP function is enabled on this
Router.
■
■
Set the wireless settings, including SSID, channel, and wireless mode.
Set the wireless security setting, and enable wireless WDS function.
Setting of the second Router:
■
Set the LAN IP setting, use a different IP address from the IP address of
the first Router. Disable the DHCP function, this would allow the first
Router to allocate IP address for wireless clients.
■
Set the wireless channel, and security same as the first Router, but use
a different SSID. Make sure that WDS function is enabled.
Access the Web UI of the first Router, use wireless WDS settings screen,
make sure that WDS is enabled. Click Rescan Wireless Networking to
scan the available APs in your area, you should see the SSID of the second
Router. Check and add the second Router to the WDS table
(see Figure 56).
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CHAPTER 5: CONFIGURING THE ROUTER
Advanced The Advanced screen allows you to configure detailed settings for your
wireless connection. Please note that you should not change this settings
unless you are an expert user. There are six parameters that you can
configure:
Figure 58 Wireless Advanced Setting Screen
■
■
Beacon Interval: this represents the amount of time between beacon
transmissions.
DTIM Interval: A DTIM (Delivery Traffic Indication Message) is a
countdown mechanism used to inform your wireless clients of the
next window for listening to broadcast and multicast messages.
■
Fragmentation Threshold: this is the maximum size for directed data
packets transmitted. The use of fragmentation can increase the
reliability of frame transmissions. Because of sending smaller frames,
collisions are much less likely to occur.
■
■
RTS Threshold: RTS stands for Request to Send, this parameter
controls what size data packet the low level RF protocol issues to an
RTS packet.
CTS Protection Mode: CTS stands for Clear to Send. CTS Protection
Mode boosts the Router’s ability to intercept 802.11b/ 802.11g
transmissions. Conversely, CTS Protection Mode decreases
performance. Leave this feature disabled unless you encounter severe
communication difficulties between the Router and your wireless
clients.
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Wireless Settings
75
■
AP Isolation Mode: AP Isolation is a function to prevent wireless clients
connected with the device from communicating with one another.
When enabled, this creates a separate virtual network for your
wireless network, each of your wireless client will be in its own virtual
network and will not be able to communicate with each other. You
may want to utilize this feature if you have many guests that
frequently connect to your wireless network.
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CHAPTER 5: CONFIGURING THE ROUTER
Internet Settings
You can configure the settings for your WAN port connection.
ATM PVC This feature is used to configure the parameters for your Internet
connection. The information necessary to complete these screens should
be obtained from your ISP. Check with your ISP first to find out what type
of connection you should choose.
Figure 59 ATM PVC Screen
configured using the Wizard in the initial setup. If you want to change
that information or set up other connection, click Edit.
There are six options available for the connection mode:
■
■
Disable — To disable the Internet connection function (see page 77)
PPPoE — PPP over Ethernet, providing routing for multiple PCs
(see page 77)
■
PPPoA — PPP over ATM, providing routing for multiple PCs
(see page 80)
■
■
Bridge Mode — RFC1483 Bridged Mode, (see page 82)
Routing Mode over ATM — RFC1483/2684 routing mode over ATM
(see page 84)
■
Dynamic/Fixed IP in 1483 Bridge Mode — Using Dynamic/fixed IP for
WAN connection (see page 86)
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Internet Settings
77
Disable
Selecting this option means that you do not want your Router to connect
to the Internet.
Figure 60 Disable Internet Connection Screen
PPPoE
PPP over Ethernet, provides routing for multiple PCs, this mode is often
used for the DSL connection. To configure this function correctly, you
should obtain the information from your ISP.
Figure 61 PPPoE Settings Screen
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CHAPTER 5: CONFIGURING THE ROUTER
1 Select PPPoE from the protocol drop-down menu.
2 Enter the IP address and Subnet mask information.
3 Enter the user name assigned to you by your ISP in the Username field.
And enter the password assigned to you by your ISP in the Password field.
Re-enter your password in the Confirm Password field.
4 Select always connected, auto, or manual from the Connect type
drop-down menu. If you have a flat rate service charge for Internet
connection, select always connected. If your ISP charges you by the
minute, do not select this mode.
5 If you want your Router to automatically disconnect from the Internet
after a period of inactivity, specify a time in the Idle Time field. (Enter a
value of 0 to disable this timeout).
6 Enter the MTU value in the MTU field. Do not make changes to this
setting, unless your ISP specifically requires a different setting other than
1454.
7 IPCP is used by PPP protocol to get one IP address from the PPP server.
IPCP subnet function allows you to obtain a subnet (IP address and
netmask), rather than an IP address. Check this box to enable the
function.
8 IPCP Subnet Populate DHCP Server: enable this function to allow the
Router to automatically apply the subnet from IPCP subnet to DHCP
server. Then LAN clients can get the public IP address assigned by ISP,
rather than a private IP address of the local LAN.
9 Check the Add Default Route checkbox to set this PVC as the default
route, this is used when you configure more than one PVC for the Router.
10 Enter the VPI/VCI values. Or click Auto Search to find out the values. VPI
(Virtual Path Identifier) and VCI (Virtual Circuit Identifier) numbers should
be provided by your ISP.
11 Select the Encapsulation, VC MUX or LLC. This information should be
provided by your ISP.
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Internet Settings
79
12 QoS Class: select CBR, UBR or VBR.
■
CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■
UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as “best effort service”.
13 PCR/SCR/MBS: PCR (Peak Cell Rate), SCR (Sustainable Cell Rate) and MBS
(Maximum Burst Size) are configurable.
14 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
PPPoA
PPP over ATM, this is a popular choice among European DSL providers. To
configure this function correctly, you should obtain the information from
your ISP.
Figure 62 PPPoA Settings Screen
1 Select PPPoA from the protocol drop-down menu.
2 IP assigned by ISP, if select Yes, then no need to enter the IP address and
Subnet mask information. If select No, then enter the IP address and
Subnet mask information.
3 Enter the user name assigned to you by your ISP in the Username field.
And enter the password assigned to you by your ISP in the Password field.
Re-enter your password in the Confirm Password field.
4 Select always connected, auto, or manual from the Connect type
drop-down menu. If you have a flat rate service charge for Internet
connection, select always connected. If your ISP charges you by the
minute, do not select this mode.
5 If you want your Router to automatically disconnect from the Internet
after a period of inactivity, specify a time in the Idle Time field. (Enter a
value of 0 to disable this timeout).
6 Enter the MTU value in the MTU field. Do not make changes to this
setting, unless your ISP specifically requires a different setting other than
1454.
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Internet Settings
81
7 IPCP is used by PPP protocol to get one IP address from the PPP server.
IPCP subnet function allows you to obtain a subnet (IP address and
netmask), rather than an IP address. Check this box to enable the
function.
8 IPCP Subnet Populate DHCP Server: enable this function to allow the
Router to automatically apply the subnet from IPCP subnet to DHCP
server. Then LAN clients can get the public IP address assigned by ISP,
rather than a private IP address of the local LAN.
9 Check the Add Default Route checkbox to set this PVC as the default
route, this is used when you configure more than one PVC for the Router.
10 Enter the VPI/VCI values. Or click Auto Search to find out the values. VPI
(Virtual Path Identifier) and VCI (Virtual Circuit Identifier) numbers should
be provided by your ISP.
11 Select the Encapsulation, VC MUX or LLC. This information should be
provided by your ISP.
12 QoS Class: select CBR, UBR or VBR.
■
CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■
UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as “best effort service”.
13 PCR/SCR/MBS: PCR (Peak Cell Rate), SCR (Sustainable Cell Rate) and MBS
(Maximum Burst Size) are configurable.
14 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
Bridge Mode
If your ISP limits access to the Internet to specific computers, this means
that traffic to/from these computers only will be forwarded. In this case,
Bridge Mode is used to connect to the ISP. The ISP will generally give one
Internet account and limit only one computer to access the Internet.
Check with your ISP to determine if this mode is used for your Internet
connection.
Figure 63 Bridge Mode Screen
1 Select Bridge Mode from the Protocol drop-down menu.
2 Select VLAN.
3 Enter the VPI/VCI values. Or click Auto Search to find out the values. VPI
(Virtual Path Identifier) and VCI (Virtual Circuit Identifier) numbers should
be provided by your ISP.
4 Select the Encapsulation, VC MUX or LLC. This information should be
provided by your ISP.
5 QoS Class: select CBR, UBR or VBR.
■
CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
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Internet Settings
83
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■
UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as “best effort service”.
6 PCR/SCR/MBS: PCR (Peak Cell Rate), SCR (Sustainable Cell Rate) and MBS
(Maximum Burst Size) are configurable.
7 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
Routing Mode over ATM
RFC1483/2684 routed encapsulation in routing mode, it carries IP
datagrams directly over ATM. DHCP client function can also be enabled
to obtain an IP address dynamically.
Figure 64 Routing Mode over ATM Screen
1 Select Routing mode over ATM from the protocol drop-down menu.
2 Enter IP address, Subnet mask, and Default gateway information.
3 If your ISP provides DNS information, check the DNS Automatic from ISP
box.
4 If the ISP requires you to input a Host Name, enter it in the Host Name
field.
5 If your ISP uses DHCP to automatically assign IP addresses, check the
DHCP Client checkbox.
6 Check the Add Default Route checkbox to set this PVC as the default
route, this is used when you configure more than one PVC for the Router.
7 Enter the VPI/VCI values. Or click Auto Search to find out the values.
8 Select the Encapsulation, VC MUX or LLC. This information should be
provided by your ISP.
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Internet Settings
85
9 QoS Class: select CBR, UBR or VBR.
■
CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■
UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as “best effort service”.
10 PCR/SCR/MBS: PCR (Peak Cell Rate), SCR (Sustainable Cell Rate) and MBS
(Maximum Burst Size) are configurable.
11 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
Dynamic/Fixed IP in 1483 Bridge Mode
Dynamic/Fixed IP in 1483 Bridge Mode uses the same encapsulation as
1483 Bridging but with bridging function disabled. DHCP client function
can also be enabled to obtain an IP address dynamically.
Figure 65 Dynamic/Fixed IP in 1483 Bridge Mode Screen
1 Select Dynamic/Fixed IP in 1483 Bridge Mode from the protocol drop-down
menu.
2 Enter your IP address, subnet mask, and default gateway information.
3 IPoEoA NAT IP - enter the IP address in this field.
IPoE over AAL5 (IPoEoA) adopts a three-layer architecture, with IP
encapsulation at the uppermost layer, IP over Ethernet (IPoE) in the
middle, and IPoEoA at the bottom. When a device is connected to a
remote access server at high speed to access an external network, PVC
over ATM is used because of the long distance. In this case, it is required
for the ATM port of the server to carry Ethernet packets, which is known
as IPoEoA. In the application of IPoEoA, one virtual Ethernet (VE) interface
can be associated with multiple PVCs. PVCs associated with the same VE
interface are interconnected at layer 2.
4 If your ISP provides DNS information, check the DNS Automatic from ISP
box.
5 If the ISP requires you to input a Host Name, enter it in the Host Name
field.
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Internet Settings
87
6 If your ISP uses DHCP to automatically assign IP addresses, check the
DHCP Client checkbox.
7 Check the Add Default Route checkbox to set this PVC as the default
route, this is used when you configure more than one PVC for the Router.
8 Enter the VPI/VCI values. Or you can click Auto Search to automatically
find out this information.
9 Select the Encapsulation, VC MUX or LLC. This information should be
provided to you by your ISP.
10 QoS Class: select CBR, UBR or VBR.
■
CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■
UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as “best effort service”.
11 PCR/SCR/MBS: PCR (Peak Cell Rate), SCR (Sustainable Cell Rate) and MBS
(Maximum Burst Size) are configurable.
12 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
DNS Domain Name Service (or Server) is an Internet service that translates
domain names into IP addresses. Because domain names are alphabetic,
they're easier to remember. The Internet however, is really based on IP
addresses. Every time you use a domain name, a DNS service must
translate the name into the corresponding IP address. For example, the
domain name www.example.com might translate to 198.105.232.14.
Figure 66 DNS Screen
If the DNS information is automatically provided by your ISP every time
you connect to it, check the Automatic from ISP checkbox (this is the
default setting).
If your ISP provided you with specific DNS addresses to use, enter them
into the appropriate fields on the screen and click Apply.
Many ISPs do not require you to enter this information into the Router. If
you are using a static IP connection type, you may need to enter a specific
DNS address and secondary DNS address for your connection to work
properly. If your connection type is dynamic or PPPoE, it is likely that you
do not have to enter a DNS address.
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Internet Settings
89
Clone MAC address To configure the hostname and Clone MAC Address information for your
Router, select Internet Settings, then go to the Clone MAC address tab.
The Hostname and MAC Address screen displays.
Figure 67 Hostname and Clone MAC Address Screen
1 Some ISPs require a host name. If your ISP has this requirement, enter the
host name in the Host Name field.
2 Three different ways to configure the WAN MAC Address:
■
■
■
If your ISP requires an assigned MAC address, enter the values in the
WAN MAC address field.
or
If the computer that you are using is the one that was previously
connected directly to the cable modem, click Clone.
or
To reset the MAC Address to the default, click Reset MAC.
3 Click Apply to save the settings.
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CHAPTER 5: CONFIGURING THE ROUTER
Firewall
This section is for configuration settings of the Router’s firewall function.
Your Router is equipped with a firewall that will protect your network
from a wide array of common hacker attacks including Ping of Death
(PoD) and Denial of Service (DoS) attacks. You can turn the firewall
function off if needed. Turning off the firewall protection will not leave
your network completely vulnerable to hacker attacks, but 3Com
recommends that you leave the firewall enabled whenever possible.
SPI Stateful Packet Inspection (SPI) - The Intrusion Detection Feature of the
Router limits access for incoming traffic at the WAN port.
This feature is called a "stateful" packet inspection, because it examines
the contents of the packet to determine the state of the communications;
i.e., it ensures that the stated destination computer has previously
requested the current communication. This is a way of ensuring that all
communications are initiated by the recipient computer and are taking
place only with sources that are known and trusted from previous
interactions. In addition to being more rigorous in their inspection of
packets, stateful inspection firewalls also close off ports until connection
to the specific port is requested.
Figure 68 Firewall Screen
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Firewall
91
To enable the firewall function:
1 Select the level of protection (High, Medium, or Low) that you desire from
the Firewall level drop-down menu.
2 Click Apply.
■
For low and medium levels of firewall protection, refer to Figure 69.
For low level of firewall protection, the DoS and SPI functions are both
off. For medium level of firewall protection, DoS is on, but SPI is off.
■
For high level of firewall protection, refer to Figure 70. Both DoS and
SPI are on for this level of firewall protection. The higher the firewall
level is, the safer that your network is.
Figure 69 Low and Medium Level Firewall Protection Screen
When abnormal network activity occurs, an alerting email will be sent out
to you. Enter the following information to receive the email:
■
■
■
■
Your E-mail Address
SMTP Server Address
User name
Password
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CHAPTER 5: CONFIGURING THE ROUTER
Figure 70 High Level Firewall Protection Screen
If you select high level of protection, you would have an option to
configure additional parameters for the firewall.
■
Fragmentation half-open wait - Configures the number of seconds
that a packet state structure remains active. When the timeout value
expires, the Router drops the un-assembled packet, freeing that
structure for use by another packet.
■
■
■
■
■
TCP SYN wait - Defines how long the software will wait for a TCP
session to synchronize before dropping the session.
TCP FIN wait - Specifies how long a TCP session will be maintained
after the firewall detects a FIN packet.
TCP connection idle timeout - The length of time for which a TCP
session will be managed if there is no activity.
UDP session idle timeout - The length of time for which a UDP session
will be managed if there is no activity.
H.323 data channel idle timeout - The length of time for which an
H.323 session will be managed if there is no activity.
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Firewall
93
■
■
Total incomplete TCP/UDP sessions HIGH - Defines the rate of new
unestablished sessions that will cause the software to start deleting
half-open sessions.
Total incomplete TCP/UDP sessions LOW - Defines the rate of new
unestablished sessions that will cause the software to stop deleting
half-open sessions.
■
■
■
Incomplete TCP/UDP sessions (per min) HIGH - Maximum number of
allowed incomplete TCP/UDP sessions per minute.
Incomplete TCP/UDP sessions (per min) LOW - Minimum number of
allowed incomplete TCP/UDP sessions per minute.
Maximum incomplete TCP/UDP sessions number from same host -
Maximum number of incomplete TCP/UDP sessions from the same
host.
■
■
Incomplete TCP/UDP sessions detect sensitive time period - Length of
time before an incomplete TCP/UDP session is detected as incomplete.
Maximum half-open fragmentation packet number from same host -
Maximum number of half-open fragmentation packets from the same
host.
■
■
Half-open fragmentation detect sensitive time period - Length of time
before a half-open fragmentation session is detected as half-open.
Flooding cracker block time - Length of time from detecting a flood
attack to blocking the attack.
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CHAPTER 5: CONFIGURING THE ROUTER
Special Applications Special Applications (port triggering) let you choose specific ports to be
open for specific applications to work properly with the Network Address
Translation (NAT) feature of the Router.
Figure 71 Special Applications Screen
A list of popular applications has been included to choose from. Select
the application from the Popular Applications drop-down menu. Then
select the row that you want to copy the settings to from the Copy To
drop-down menu, and click Copy To. The settings will be transferred to
the row that you specified. Click Apply to save the setting for that
application.
If your application is not listed, you will need to check with the
application vendor to determine which ports need to be configured. You
can manually enter the port information into the Router. To manually
enter the port information:
1 Specify the trigger port (the one used by the application when it is
initialized) in the Trigger Port column, and specify whether the trigger is
TCP or UDP.
2 Specify the Public Ports used by the application, that will need to be
opened up in the firewall for the application to work properly. Also
specify whether these ports are TCP or UDP. Note that the range of the
trigger port is from 1 to 65535. You can enter the port number as one
single port, or in range, use comma to separate different entries.
3 Check the Enabled checkbox, then click Apply.
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Firewall
95
Virtual Servers The Virtual servers feature allows you to route external (Internet) calls for
services such as a web server (port 80), FTP server (Port 21), or other
applications through your Router to your internal network. Since your
internal computers are protected by a firewall, machines from the
Internet cannot get to them because they cannot be 'seen'.
If you need to configure the Virtual Server function for a specific
application, you will need to contact the application vendor to find out
which port settings you need.
The maximum number of virtual servers that can be configured is 20.
Figure 72 Virtual Servers Screen
A list of popular servers has been included to choose from. Select the
server from the Popular servers drop-down menu. Then click Add, your
selection will be added to the table.
If the server that you want to use is not listed in the drop-down menu,
you can manually add the virtual server to the table. To manually
configure your virtual servers:
1 Enter the IP address, and the description in the spaces provided for the
internal machine.
2 Select the protocol type (TCP, UDP, or both TCP and UDP) from the
drop-down menu.
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CHAPTER 5: CONFIGURING THE ROUTER
3 Specify the public port that will be seen by clients on the Internet, and the
LAN port which the traffic will be routed to.
4 You can enable or disable each Virtual Server entry by checking or
unchecking the appropriate Enabled checkbox.
5 Click Apply to save the changes for each Virtual Server entry.
DMZ If you have a client PC that cannot run an Internet application properly
from behind the firewall, you can open the client up to unrestricted
two-way Internet access. This may be necessary if the NAT feature is
causing problems with an application such as a game or video
conferencing application.
Figure 73 DMZ Screen
Use this feature on a temporary basis. The computer in the DMZ is not
protected from hacker attacks.
Check the Enable DMZ box, the IP Address of Virtual DMZ Host will
appear.
1 Enter the last digits of the LAN IP address in the Client PC IP Address field.
Enter the IP address (if known) that will be accessing the DMZ PC into the
Public IP Address field, so that only the computer on the Internet at this
address can access the DMZ PC without firewall protection. If the IP
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Firewall
97
address is not known, or if more than one PC on the Internet will need to
access the DMZ PC, then set the Public IP Address to 0.0.0.0.
In the default setting, (line 1) refer to Figure 73, Public IP address is set to
0.0.0.0 and it is automatically transformed by default WAN IP. We only
allow one DMZ server to be accessed by public IPs (Many to 1 NAT). If you
have more than one DMZ server, you have to set a second WAN IP in line
2 and define which IP address of DMZ server you would like to set in the
Client PC IP address. For this Router, only 1 to 1 NAT function is allowed.
2 Click Apply.
PC Privileges The Router can be configured to restrict access to the Internet, email or
other network services at specific days and times. Restriction can be set
for a single computer, a range of computers, or multiple computers.
You can define the traffic type permitted or not-permitted to the Internet.
Note that this function requires time-scheduling to be applied to access
control, you will need to create schedule rules first and then use PC
Privileges.
Figure 74 PC Privileges Screen
1 Select one option from filtering function:
■
All PCs have access to the Internet: selecting this mode means that all
clients have full access to Internet.
■
PCs access authorised services only: selecting this mode means clients
can only access authorised or limited services.
2 Click Add PC (refer to Figure 75).
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CHAPTER 5: CONFIGURING THE ROUTER
To edit or delete specific existing filtering rules, click on Edit or Delete for
the appropriate filtering rule.
Figure 75 PC Privileges Add PC Screen
1 Enter a description in the Client PC Description field, and the IP address or
IP address range into the Client PC IP Address fields.
2 To bypass the URL Filter, check the corresponding Bypass checkbox. If you
check this option, then the Web sites and keywords defined in this screen
will not be filtered out.
3 Select the services to be blocked. A list of popular services is listed on this
screen, to block a particular service, check the appropriate Blocking
checkbox.
range of ports at the bottom of the screen, under User Defined Blocked
Ports.
4 If you want the restriction to apply only at certain times, select the
schedule rule to apply from the Schedule Rule drop-down menu.
Note that schedule rules are defined on the Schedule Rules screen
(see page 99).
5 Click Apply to add the settings.
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Firewall
99
Schedule Rule The Router can be configured to restrict access to the Internet, email or
other network services at specific days and times. Define the time in this
screen, and define the rules in the PC Privileges screen (see page 97).
Figure 76 Schedule Rule Screen
1 Click Add Rule to add a schedule rule (refer to Figure 77).
Figure 77 Add Schedule Rule Screen
2 Enter a name and comment for the schedule rule in the Name and
Comment fields.
3 Specify the schedule rules for the required days and times - note that all
times should be in 24 hour format.
4 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
URL Filter To configure the URL filter feature, use the table on the URL Filter screen
to specify the Web sites (www.somesite.com) and/or keywords you want
to filter on your network.
For example, entering a keyword of xxx would block/allow access to any
URL that contains the string xxx.
Figure 78 URL Filter Screen
1 Check the Enable URL Filtering Function checkbox. The rule table will
appear.
2 Enter the URL address or keywords in the URL/Keyword field.
3 Select Denied or Allowed from the Mode drop-down menu.
To complete this configuration, you will need to create or modify the
filtering rule in the PC Privileges screen (see page 97).
From the PC Privileges Add PC screen (Figure 75), if you check the option:
Bypass URL Filter, then the Web sites and keywords defined in this screen
will not be filtered out.
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Advanced 101
Advanced
The Advanced section allows you to set additional parameter details for
the Router. You can configure:
■
■
■
■
■
■
■
■
■
Security
VLAN
Static Routes
RIP
DDNS
SNMP
Syslog
Proxy Arp
QoS Settings
Security Use the Security screen to set the advanced security settings for the
Router.
Figure 79 Security Screen
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CHAPTER 5: CONFIGURING THE ROUTER
■
NAT — (Network Address Translation), NAT is the method by which
the Router shares the single IP address assigned by your ISP with the
computers on your network.
This function should only be disabled by advanced users, and if your
ISP assigns you multiple IP addresses or you need NAT disabled for an
advanced system configuration. If you have a single IP address and
you turn NAT off, the computers on your network will not be able to
access the Internet. Other problems may also occur.
■
IPSec NAT-T Pass-through — NAT-T (NAT Traversal) is an Internet Draft
proposed to IETF in order to help the problems associated with passing
IPsec traffic through NAT Routers. For NAT-T to work, both ends of the
connection need to support this function. Ensure that you select NAT-T
only if it is needed as it will reduce LAN-WAN throughput. This Router
supports NAT-T draft 2 implementation.
■
Universal Plug and Play — This is a technology that offers seamless
operation of voice messaging, video messaging, games, and other
applications that are Universal Plug and Play compliant. Some
applications require the Router's firewall to be configured in a specific
way to operate properly. This usually requires opening TCP and UDP
ports and in some instances setting trigger ports. An application that
is Universal Plug and Play compliant has the ability to communicate
with the Router, basically "telling" the Router which way it needs the
firewall configured. The Router ships with the Universal Plug and Play
feature disabled. If you are using any applications that are Universal
Plug and Play compliant, and want to take advantage of the Universal
Plug and Play features, you can enable this feature. Simply check the
Enable Universal Plug and Play checkbox. Click Apply to save the
change.
■
WAN Ping Blocking — Computer hackers use what is known as
"Pinging" to find potential victims on the Internet. By pinging a
specific IP address and receiving a response from the IP address, a
hacker can determine that something of interest might be there.
The Router can be set up so it will not respond to an Internet Control
Message Protocol (ICMP) Ping from the outside. This heightens the
level of security of your Router. To turn off the ping response, check
Block ICMP Ping and click Apply; the Router will not respond to an
ICMP ping from the Internet.
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Advanced 103
■
MSS Clamping — You might not be able to browse some Web sites or
to send email messages that contain attachments from an Internet
Connection Sharing client computer if your outbound connection is
through a Windows XP-based Internet Connection Sharing host
computer that uses Point-to-Point Protocol over Ethernet (PPPoE).
This issue may occur if the Windows XP-based Internet Connection
Sharing host computer uses a smaller Maximum Transmission Unit
(MTU) size on the WAN interface (the PPPoE connection to the
Internet) than it uses on the private interface (the Ethernet connection
to the Internet Connection Sharing client). If a packet is larger than
the MTU size on the WAN interface, the client sends an Internet
Control Message Protocol (ICMP) error to the external server to
request that the server negotiate the TCP Maximum Segment Size
(MSS). However, this message may be blocked by some firewalls.
When this occurs, the packet is dropped. To allow the message to go
through the firewall, enable MSS Clamping. MSS clamping will make
Internet Connection Sharing set the MSS value low enough to match
the external interface.
■
Remote Administration — This feature allows you to make changes to
your Router’s settings from anywhere on the Internet. Four options are
available:
■
If you do not want to use this feature, select Disable Remote
Administration.
■
Select Enable administration from a single Internet Host, and enter
the IP address, to allow only one computer to use the remote
administration. This is more secure, as only the specified IP address
will be able to manage the Router.
■
■
Select Enable administration from a whole Subnet Internet Host,
and enter the IP address and subnet mask, to allow PCs from that
specific subnet group to use the remote administration.
Select Enable administration from any Internet Host, this allows
any computer to access the Router remotely.
Before you enable this function, ensure that you have changed the
factory default Administration Password.
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CHAPTER 5: CONFIGURING THE ROUTER
VLAN A VLAN is a flexible group of devices that can be located anywhere in a
network, but they communicate as if they are on the same physical
segment. With VLANs, you can segment your network without being
restricted by physical connections - a drawback of traditional network
design. As an example, with VLANs you can segment your network
according to:
■
Departmental groups - For example, you can have one VLAN for the
Marketing department, another for the Finance department, and
another for the Development department.
■
■
Hierarchical groups - For example, you can have one VLAN for
directors, another for managers, and another for general staff.
Usage groups - For example, you can have one VLAN for users of
e-mail, and another for users of multimedia.
The main benefit of VLANs is that they provide a network segmentation
system that is far more flexible than any traditional network. Using VLANs
also provides you with three other benefits:
■
It eases the change and movement of devices on IP networks: With
traditional IP networks, network administrators spend much of their
time dealing with moves and changes. If users move to a different IP
subnet, the IP addresses of each end-station must be updated
manually.
With a VLAN setup, if an end-station in VLAN 1 is moved to a port in
another part of the network, you only need to specify that the new
port forwards VLAN 1 traffic.
■
It provides extra security: Devices within each VLAN can only
communicate directly with devices in the same VLAN. If a device in
VLAN 1 needs to communicate with devices in VLAN 2, the traffic
needs to pass through a routing device or Layer 3 switch.
■
It helps to control broadcast traffic: With traditional networks,
congestion can be caused by broadcast traffic that is directed to all
network devices whether they require it or not. VLANs increase the
efficiency of your network because each VLAN can be set up to
contain only those devices that need to communicate with each other.
The VLAN screen allows you to setup VLAN groups. Note that Wireless
LAN is permanently assigned to Default VLAN.
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Advanced 105
Figure 80 VLAN Screen
Click Add VLAN to create a new entry (see Figure 81).
Figure 81 VLAN Profile Screen
■
■
■
■
Enter a description for your VLAN in the Description field.
Enter the IP Address and subnet mask in the corresponding fields.
Select to set the NAT Domain as public or private.
IGMP Snooping: enabling it will turn on the feature that allows an
Ethernet switch to “listen in” on the IGMP conversation between
hosts and routers.
■
IGMP Querier: enabling this function will send out periodic IGMP
queries.
Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
Static Routes You can configure static routes in this screen. You can setup a static route
that will get all traffic with destination to business network to go through
VPN tunnel and the rest outside of the VPN tunnel.
Figure 82 Static Routes Screen
To add a static route entry to the table, click Add (see Figure 83).
To change an existing entry, click Edit. To delete an entry, click Delete.
Figure 83 Add Static Route Screen
Enter the following information:
■
■
Network Address — the network address of the static route.
Subnet Mask — the subnet mask of the route.
A network address of 0.0.0.0 and a subnet mask of 0.0.0.0 indicates the
default route.
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Advanced 107
■
■
Gateway — the Router used to route data to the network specified by
the network address.
Interface — select the interface.
Note that you should only configure either the Gateway information or
select the Interface. After you have finished making changes to the table,
click Apply.
Here is an example of setting up a static route.
■
■
■
■
IP address of your PC: 10.1.4.52
Subnet mask: 255.255.252.0
Default Gateway: 10.1.4.254
Network Address: 10.1.4.0
Figure 84 Add Static Route Example Screen
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CHAPTER 5: CONFIGURING THE ROUTER
RIP RIP (Routing Information Protocol) - RIP allows the network administrator
to set up routing information on one RIP-enabled device (this Router),
and send that information to all RIP-enabled devices on the network.
Figure 85 RIP Parameter Screen
You can set up RIP independently on both LAN and WAN interfaces.
1 Check the Enable RIP checkbox.
2 Check the Enable Auto summary checkbox. Auto summarization sends
simplified routing data to other RIP-enabled devices rather than full
routing data.
3 Select the Operation Mode:
■
Disable — RIP is not enabled for the WAN or LAN interface.
■
Enable — RIP is enabled for the WAN or LAN interface. The router will
transmit RIP update information to other RIP-enabled devices.
■
Silent — RIP is enabled, however the Router only receives RIP update
messages, it will not transmit any messages itself.
4 In the Version field, select 1 or 2.
3Com recommends that you only use RIPv1 if there is an existing
RIP-enabled device on your network that does not support RIPv2. In all
other cases, you should use RIPv2.
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Advanced 109
5 Use the Poison Reverse drop-down menu to enable or disable Poison
Reverse on the Router. Enabling Poison Reverse on your Router allows it
to indicate to other RIP-enabled devices that they have both routes that
point to each other, preventing data loops.
6 Use the Authentication Required field to choose the mode of
authentication:
■
None — Switches off authentication on the specified interface.
■
Password — An unencrypted text password that needs to be set on all
RIP-enabled devices connected to this Router. RIP information is not
shared between devices whose passwords do not match.
7 In the Password field, enter the required password.
8 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
DDNS The Router provides a list of dynamic DNS providers for you to choose
from. Dynamic Domain Name Server (DDNS) enables you to map a static
domain name to a dynamic IP address. This function allows you to create
a hostname that points to your dynamic IP or static IP address or URL.
Before you set up DDNS, you must obtain an account, password or key
and static domain name from your DDNS provider. The Router supports
five DDNS providers:
■
■
■
■
■
DynDNS.org
TZO.com
Dt DNS.com
No-IP.com
Zoneedit.com
Figure 86 Dynamic Domain Name Server (DDNS) Screen
1 Check Enable DDNS.
2 Select the provider, and then enter the necessary information provided by
your DDNS provider.
3 Click Apply.
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Advanced 111
SNMP SNMP (Simple Network Management Protocol) allows remote
management of your Router by a PC that has an SNMP management
agent installed.
Check the Enable SNMP box, the table will appear.
Figure 87 SNMP Screen
Enter the System Contact, System Name, and System Location
information.
To Configure SNMP Community:
1 In the Community column, enter the name of the SNMP communication
channel. Your SNMP management agent needs to be configured with this
name so that it can communicate with your Router.
2 In the Access column, select Read to allow the management agent to
collect data (for example, bandwidth usage) from your Router. Select
Write to allow the management agent to change the configuration of
your Router.
3 Check the appropriate Valid checkbox to enable the communication
channel.
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CHAPTER 5: CONFIGURING THE ROUTER
You can configure the Router to send status messages to the SNMP
management agent if a problem occurs on the network. To configure
SNMP traps:
1 In the IP Address field, enter the IP address of the PC to which you want
your Router to send status messages.
2 In the Community field, enter the name of the SNMP communication
channel to which you want your Router to send status messages.
3 Set the Version field to match the version of trap messaging that your
SNMP management agent supports. The Router supports V1 and V2c
trap messaging.
Syslog Using third party syslog software, this Syslog Server tool will automatically
download the Router log to the specified server IP address.
Figure 88 Syslog Server Screen
1 Check the Enable Syslog Server checkbox.
2 Enter the Server LAN IP Address in the space provided.
3 Click Apply.
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Advanced 113
Proxy ARP Proxy ARP is the technique in which one host, usually a Router, answers
ARP requests intended for another machine. By “faking” its identity, the
Router accepts responsibility for routing packets to the “real” or intended
destination. This heightens the security for your network.
Figure 89 Proxy ARP Screen
1 Check the Enable ProxyARP box.
2 Enter the corresponding IP address in the IP Address From and IP Address
To fields.
3 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
QoS Settings The QoS (Quality of Service) function allows you to differentiate your
network traffic and provide it with high-priority forwarding service.
The bandwidth gap between LAN and WAN may significantly degrade
the performance of critical network applications, such as VoIP, gaming,
and VPN. This QoS function allows you to classify traffic of applications
and provides them with differentiated services (Diffserv).
Figure 90 QoS Settings Screen
1 Check the Enable QoS box, and enter the value for WAN Out Bandwidth.
2 Define the minimum percentage of bandwidth for each type of traffic.
3 Check the corresponding box to allow more bandwidth allocation.
4 Click Apply.
Note that once QoS is enabled, a new tab, Traffic mapping, will become
visible, see Figure 91.
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Advanced 115
Traffic Mapping Up to 16 rules can be defined to classify your network traffic into Diffserv
forwarding groups and outgoing connections.
Figure 91 Traffic Mapping Screen
Click Add, the Edit Traffic Class screen will appear.
Figure 92 Edit Traffic Class Screen
1 Define the Rule name.
2 Select the traffic type from drop-down menu.
3 Select the forwarding group from the Map to Forwarding Group
drop-down menu.
4 Select the value from the Remark DSCP as drop-down menu.
5 Click the ADVANCED CONFIG button, a more detailed Edit Traffic class
screen will appear, see Figure 93.
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VPN 117
VPN
The Router has a Virtual Private Network (VPN) feature that provides a
secure link between remote users and the corporate network by
establishing an authenticated and encrypted tunnel for passing secure
data over the Internet. The Router supports three modes of VPN
operation:
■
IPSec (IP Security) — provides IP network-layer encryption. IPSec can
support large encryption networks (such as the Internet) by using
digital certificates for device authentication. When setting up an IPSec
connection between two devices, make sure that they support the
same encryption method.
Note: Enabling IPSec VPN disables pass-through to IPSec and L2TP over
IPSec Virtual Servers on the LAN. Pass-through outbound from clients on
the LAN to servers on the Internet is unaffected.
■
PPTP (Point-to-Point Tunneling Protocol) — provides a secure tunnel
for remote client access to a PPTP security gateway. It is not as secure
as IPSec but is easy to administer. PPTP does not support gateway to
gateway connections and is only suitable for connecting remote users.
Check that your ISP’s routers support this protocol before you use it.
Note: Enabling the PPTP Server disables PPTP pass-through to a Virtual
Server on the LAN. Pass-through outbound from clients on the LAN to
servers on the Internet is unaffected.
■
L2TP over IPSec — this is a combination of two protocols. L2TP is used
to authenticate a user, and IPSec is used to encrypt data. L2TP over
IPSec does not support gateway to gateway connections and is only
suitable for connecting remote users. Check that your ISP’s routers
support this protocol before you use it.
Note: Enabling L2TP over IPSec disables pass-through to IPSec and L2TP
over IPSec Virtual Servers on the LAN. Pass-through outbound from
clients on the LAN to servers on the Internet is unaffected.
Using the VPN Tunnel Configuration screen, you can add new IPSec, L2TP
over IPSec and PPTP connections, and to edit existing connections. When
adding or editing values on this screen remember that both ends of the
connection must contain the same information.
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CHAPTER 5: CONFIGURING THE ROUTER
Figure 94 VPN Screen
1 Check the Enable IPSec box, configuration details screen appears.
Figure 95 Enable IPSec Screen
2 Enter the Local ID Name of your VPN. (the default is 3ComVPN)
3 Click Add to create a new entry, see Figure 96.
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VPN 119
Figure 96 Add New VPN Tunnel Configuration Screen
On the VPN Tunnel Parameter screen,
1 Set the VPN Tunnel Type to IPSec.
2 Enter a descriptive name for the tunnel in the Tunnel Name field.
3 Remote VPN Gateway - select IP address, and then enter the IP address in
the IP Address/Host Name field. If you select ANY, then it would be no
need to enter the IP address, as any remote server can be used.
4 At the Remote Party ID drop-down list, select either IP_IPV4_ADDR or
ID_USER_FQDN. This information must be entered identically on the IPSec
software installed on the client’s machine.
If IP_IPV4_ADDR is selected, then enter the IP address and subnet mask in
the Remote Network Address, and Remote Subnet Mask fields. The
remote network address is usually the network address of the LAN
connected to the remote server.
If ID_USER_FQDN is selected, then enter the name for the Remote Party
ID in the text box area next to the drop-down menu. This name must be
unique for each connection rule that you create. Enter the IP address and
subnet mask in the Remote Network Address, and Remote Subnet Mask
fields.
Note that if you select IKE Main Mode from the Key Management
drop-down menu (see step 6), you must enter IP_IPV4_ADDR here.
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CHAPTER 5: CONFIGURING THE ROUTER
5 Select the Local Party ID, and then enter the ID, Network Address and
Subnet Mask of the Local Secure Group. The network address of the local
secure group is usually the network address of the local network.
6 From the Key Management drop-down menu, select either IKE Main
Mode or IKE Aggressive Mode.
7 SA (Security Association) attribute - select the option to use for SA
attribute.
8 In the Pre-shared Key field, enter the password for the connection. This
must be unique for each connection rule that you create.
9 Select MD5, or SHA1 from the Authentication Algorithm drop-down
menu. Both ends of the connection must use the same value.
10 Select DES, 3DES, Null, AES-128, AES-192, or AES-256 from the Encrypt
Algorithm drop-down menu. Both ends of the connection must use the
same value.
11 Enter the Key lifetime, in seconds. The default is 3600 seconds. The value
must be at least 300 seconds.
12 PFS - Perfect Forward Secrecy, check this box, then the Diffie-Hellman
Group options become available. The use o PFS is optional, enabling PFS
will add another layer of encryption security.
13 Diffie-Hellman Group - select the group to use for Diffie-Hellman key
exchange.
14 Check the IKE Keep Alive box to enable this function. The time value is
the number of seconds that the router waits between sending IKE
keepalive packets.
15 Click Apply.
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VPN 121
Check the Enable L2TP box, configuration details screen appears,
see Figure 97.
Figure 97 Enable L2TP Screen
1 Enter the Pre-shared Key for L2TP Server over IPSec Setting.
2 Define the IP Address Pool for L2TP clients, enter the start/end address.
3 Click Add to create a new entry, see Figure 98.
Figure 98 Add New VPN Tunnel Parameter L2TP over IPSec Screen
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CHAPTER 5: CONFIGURING THE ROUTER
1 Set the Tunnel Type to L2TP over IPSec.
2 Enter a descriptive name for the tunnel in the Tunnel Name field.
3 Enter the User name and Password.
4 Enter the Idle Timeout value.
5 Set the L2TP Type Setting to L2TP Server, or L2TP Client.
■
if you set the type as L2TP Client, then set the Local Type Setting to
Network or Host, then enter the Remote Server IP. Check the Auto
reconnect box, if you want to auto-reconnect after disconnection.
■
if the L2TP Type Setting is set to L2TP Server, go to step 6.
Remote Network Address, and Remote Subnet Mask information.
7 When the L2TP Type Setting is set to L2TP Client, you would then need to
enter the Pre-shared Key information.
8 Click Apply.
Check the Enable PPTP box, configuration details screen appears,
see Figure 99.
Figure 99 Enable PPTP Screen
1 Define the IP Address Pool for PPTP clients, enter the start/end address.
2 Click Add to create a new entry, see Figure 100.
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VPN 123
Figure 100 Add new PPTP VPN Tunnel Screen
1 Set the Tunnel Type to PPTP.
2 Enter a descriptive name for the tunnel in the Tunnel Name field.
3 Enter the User name and Password.
4 Enter the Idle Timeout value.
5 Set the PPTP Type Setting to PPTP Server, or PPTP Client.
■
if you set the type as PPTP Client, then set the Local Type Setting to
Network or Host, then enter the Remote Server IP. Check the Auto
reconnect box, if you want to auto-reconnect after disconnection.
■
if the PPTP Type Setting is set to PPTP Server, go to step 6.
6 Check the box to enable the Remote Network Setting, and then enter the
Remote Network Address, and Remote Subnet Mask information.
7 When the PPTP Type Setting is set to PPTP Client, you would then need to
enter the Pre-shared Key information.
8 Click Apply.
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CHAPTER 5: CONFIGURING THE ROUTER
System Tools
These screens allow you to manage different parameters of the Router
and perform certain administrative functions.
Restart Router Sometimes it may be necessary to restart (or reboot) the Router.
Restarting the Router from this screen will not delete any of your
configuration settings.
Click the Restart the Router button to restart the Router.
Figure 101 Restart Router Screen
Configuration Use this configuration screen to backup, restore or reset the
configuration details of the Router.
Figure 102 Configuration Screen
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System Tools 125
■
Backup Configuration — You can save your current configuration by
clicking the Backup button. Saving your configuration will allow you
to restore it later if your settings are lost or changed. It is
recommended that you backup your current configuration before
performing a firmware update.
■
■
Restore Configuration Data — The Restore Settings option will allow
you to restore a previously saved configuration. Please select the
configuration file using the Browse button and click Restore.
Reset to Factory Default — Using this option will reset all of the
settings in the Router to the factory default settings. It is
recommended that you backup your settings before you restore all of
the defaults. To restore the factory default settings, click Reset. Note
that all of your current configuration will be lost.
Upgrade From time to time 3Com may release new versions of the Router’s
firmware. Firmware updates contain improvements and fixes to problems
that may have existed.
Figure 103 Upgrade Screen
Please download the firmware file to your PC first, and then click Browse
to locate the file, and select the firmware file. Click Upgrade to upload
the firmware to the Router.
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CHAPTER 5: CONFIGURING THE ROUTER
Time Zone You can set the time settings for the Router on this screen.
Figure 104 Time Zone Screen
The Router keeps time by connecting to a Network Time Protocol (NTP)
server. This allows the Router to synchronize the system clock to the
Internet. The synchronized clock in the Router is used to record the
security log and control client filtering. Select the time zone that you
reside in.
If you reside in an area that observes Daylight Saving, then check the
Enable Daylight Savings box. The system clock may not update
immediately. Allow at least 15 minutes for the Router to contact the time
servers on the Internet and get a response. You cannot set the clock
yourself.
You can specify which NTP servers the Router will use to update the
system clock, although doing this should only be necessary if you are
experiencing difficulty.
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System Tools 127
Ping The ping tool is used to test if the network is working properly.
Figure 105 Ping Screen
1 Enter the IP address or domain name in the IP Address or Domain Name
field, and click Ping.
2 Select from the Number of times to Ping drop-down menu.
3 The Router keeps a log of the ping test, click Clear Log to delete the
records.
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CHAPTER 5: CONFIGURING THE ROUTER
Traceroute Traceroute is the program that shows you the route over the network
between two systems, listing all the intermediate routers a connection
must pass through to get to its destination. It can help you determine
why your connections to a given server might be poor, and can often help
you figure out where exactly the problem is. It also shows you how
systems are connected to each other, letting you see how your ISP
connects to the Internet as well as how the target system is connected.
Figure 106 Traceroute Screen
1 Enter the IP address or domain name in the IP Address or Domain Name
field, and click Traceroute.
2 The Router keeps a log of the traceroute test, click Clear Log to delete the
records.
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System Tools 129
DNS Lookup DNS Lookup is the process of resolving an IP address
(i.e. 192.168.11.137) to a host name (i.e. xxxcompany.net).
Figure 107 DNS Lookup Screen
1 Enter the IP address or domain name in the IP Address or Domain Name
field, and click DNS lookup.
2 The Router keeps a log of the DNS lookup test, click Clear Log to delete
the records.
Diagnostic This screen is designed to collect diagnostic information of this Router,
click the Start button to start the diagnostic, then save the information in
a file. You can later use this information to analyze your network.
Figure 108 Diagnostic Screen
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130
CHAPTER 5: CONFIGURING THE ROUTER
Status and Logs
You can use the Status Screen to view version numbers for your Router’s
software and hardware and check the status of connections to Internet,
LAN and WLAN interfaces.
Status This screen shows Router status and statistics.
■
Release - use this button to release the current IP.
Renew - use this button to obtain a new IP.
■
Figure 109 Status Screen
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Status and Logs 131
ADSL Status This screen shows ADSL modem status and statistics.
Figure 110 ADSL Status Screen
ATM PVC Status This screen shows ATM PVC status and statistics.
■
Click Disconnect to disconnect from your ISP.
■
Click Connect to make a connection with your ISP.
Figure 111 ATM PVC Status Screen
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CHAPTER 5: CONFIGURING THE ROUTER
Routing Table This screen displays details for the default routing used by your Router
and any routing created using Static Routing or RIP.
Figure 112 Routing Table Screen
Logs This screen shows any attempts that have been made to gain access to
your network as well as the system activities.
Figure 113 Logs Screen
■
■
Click Help to view the help file.
Click Save to save the log to the hard disk as a text file. When
prompted for a location to save the file to, specify a file name and
location, and then click OK.
■
■
Click Clear to clear the log (note that all current entries will be erased).
Click Refresh to update the record.
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Status and Logs 133
Traffic Statistics This screen shows the traffic statistics. Use the Refresh button to update
the information. Note that the current implementation only shows traffic
statistics per forwarding group. Hence if QoS is not enabled, this screen
will always show zero values.
Figure 114 Traffic Statistics Screen
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134
CHAPTER 5: CONFIGURING THE ROUTER
Support/Feedback
You can use the Support/Feedback screen to obtain support and help,
and also provide feedback to 3Com.
Support Figure 115 Support Screen
This screen shows support information.
Feedback To provide feedback to 3Com, please click Provide Feedback, and this will
connect you to the 3Com Web site.
Figure 116 Feedback Screen
This screen shows feedback information.
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TROUBLESHOOTING
6
Basic Connection
Checks
The Router has been designed to aid you when detecting and solving
possible problems with your network. These problems are rarely serious;
the cause is usually a disconnected or damaged cable, or incorrect
configuration. If this section does not solve your problem, contact your
supplier for information on what to do next.
Perform these actions first:
■
■
Ensure all network equipment is powered on.
Power each piece of network equipment off, wait about five seconds
and then power each one on.
CAUTION: Do not power the Router off and then immediately on. Wait
about five seconds between power cycles.
Check the following symptoms and solutions:
■
Check that the Router is connected to your computers and to the
telephone line, and that all the equipment is powered on. Check that
the LAN Status and SYNC LEDs on the Router are illuminated, and that
any corresponding LEDs on the NIC are also illuminated.
■
■
Ensure that the computers have completed their start-up procedure
and are ready for use. Some network interfaces may not be correctly
initialized until the start-up procedure has completed.
If the link status LED does not illuminate for a port that is connected,
check that you do not have a faulty cable. Try a different cable.
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136
CHAPTER 6: TROUBLESHOOTING
Browsing to the
Router
If you have connected your Router and computers together but cannot
Configuration
Screens
■
Confirm that the physical connection between your computer and the
Router is OK, and that the LAN Status LEDs on the Router and
network adapter are illuminated. Some NICs do not have status LEDs,
in which case a diagnostic program may be available that can give you
this information.
■
■
■
Ensure that you have configured your computer as described in
Chapter 3. Restart your computer while it is connected to the Router
to ensure that your computer receives an IP address.
When entering the address of the Router into your web browser,
ensure that you use the full URL including the http:// prefix (e.g.
http://192.168.1.1).
Ensure that you do not have a Web proxy enabled on your computer.
Go to the Control Panel and click on Internet Options. Select the
Connections tab and click on the LAN Settings button at the bottom.
Make sure that the Proxy Server option is unchecked.
■
If you cannot browse to the Router, use the winipcfg utility in
Windows 98/ME to verify that your computer has received the correct
address information from the Router. From the Start menu, choose
Run and then enter winipcfg. Check that the computer has an IP
address of the form 192.168.1.xxx (where xxx is in the range 2-254),
the subnet mask is 255.255.255.0, and the default Router is
192.168.1.1 (the address of the Router). If these are not correct, use
the Release and Renew functions to obtain a new IP address from the
Router. Under Windows 2000, Windows XP, and Windows Vista, use
the ipconfig command-line utility to perform the same functions.
Connecting to the
Internet
If you can browse to the Router configuration screens but cannot access
Web sites on the Internet, check the following:
■
Confirm that the physical connection between the Router and the
telephone line is OK, and that the DSL LED on the Router is
illuminated.
■
ADSL Sync LED (3 on fig3) – LED illuminated indicates the physical
connection to the ADSL line is good.
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Connecting to the Internet 137
■
If the ADSL Sync LED is off or flashes but does not go to a steady on
state, please go through the following steps before contacting 3Com
support.
1 Your ISP may have upgraded their DSLAM equipment:
Verify your 3Com Router has the latest software/firmware available
installed. Upgrades are found at http://www.3Com.com/downloads, if
that does not help, contact your ISP to see if there has been any updates
or upgrades on their services, either via them or via the main Telco
provider in your area, Obtain the list of these updates with the list of new
hardware now being used and contact 3Com support after that to see if
your Router can be updated to support such new upgrades.
2 Your ADSL filter may be faulty:
Replace your ADSL filter and disconnect all other equipment on the line in
case it is another ADSL filter that has developed a fault.
3 Your Internet Service may be out of order:
Contact your Internet provider to see if they are having any problems on
their side. They can also check your line for you.
4 There is too much noise on your phone line:
If you can hear noise on your line over the phone, this may also affect
your ADSL connection. Contact your phone line supplier so that they can
fix this for you.
5 You may not have an ADSL filter on every phone socket used on the same
line as the ADSL Router:
If you have connected new equipment on the phone line that is not
connected via an ADSL filter, this may cause your Router to stop working
properly. It's advisable not to exceed a maximum of 4 devices on a phone
line.
6 Your phone line cable may have been pulled out of the phone socket of
the Router:
Although it sounds obvious, this has regularly been found to be a cause
of the Routers loss of ADSL Sync. Try using a new phone cable in case it
had been damaged.
7 If practical, try using someone else's line connection to see if your Router
works there. If you can use your Router at someone else's line
connection, contact your internet provider, ask them why your Router no
longer works at your location but works somewhere else.
8 If this still does not help you to connect, contact 3Com support for
further help and advice. Please mention what you have tested from the
above list to the support engineer.
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CHAPTER 6: TROUBLESHOOTING
■
configuration screens as required by your Internet Service Provider. Use
the Internet Settings screen to verify this.
■
Verify the connection type is the type required by your Service
Provider
■
ADSL Data (4 on fig3) – LED on indicates the Router has logged on
to the ADSL service using the user name and password configured
in the PPPoA or PPPoE configuration screen, see page 41/page 42
■
Ensure that your computers are not configured to use a Web proxy.
On Windows computers, this can be found under Control Panel >
Internet Options > Connections.
ForgottenPassword If you can browse to the Router configuration screen but cannot log on
and Reset to
Factory Defaults
because you do not know or have forgotten the password, follow the
steps below to reset the Router to its factory default configuration.
CAUTION: All your configuration changes will be lost, and you will need
to run the configuration wizard again before you can re-establish your
Router connection to the Internet. Also, other computer users will lose
their network connections whilst this process is taking place, so choose a
time when this would be convenient.
1 Power off the Router.
2 Disconnect all your computers and the telephone line from the Router.
3 Re-apply power to the Router, and wait for it to finish booting up.
4 Press and hold the Reset button on the rear panel (see Figure 5 on
page 18) for 5 seconds.
5 The Router will restart, and when the start-up sequence has completed,
browse to:
http://192.168.1.1
and run the configuration wizard. You may need to restart your computer
before you attempt this.
6 When the configuration wizard has completed, you may reconnect your
network as it was before.
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Wireless Networking 139
Wireless
Networking
■
Ensure that you have an 802.11b or 802.11g or 802.11n wireless
adapter for each wireless computer, and that it is correctly installed
and configured. Verify that each wireless computer has either
Windows 98 or higher or MAC OS 8.5 or higher.
■
Verify that your wireless computers are configured to work in
Infrastructure mode and not Ad Hoc mode. The Router contains an
access point that is designed to operate in Infrastructure mode. Note
that Ad Hoc mode is not supported by the Router.
■
■
If you have a wired and a wireless NIC in the same computer, ensure
that the wired NIC is disabled.
Check the status of the WLAN LED, it should be lit if wireless is
enabled and will flash when there is wireless activity. If not lit, go to
Wireless Settings on page 57 and enable wireless networking.
■
■
Ensure that the TCP/IP settings for all devices are correct.
Ensure that the Wireless Clients are using the same SSID or Service
Area Name as the Router. The SSID is case-sensitive.
■
■
■
Ensure that the encryption method and level that you use on your
clients are the same as those configured on the Router. The Router
cannot simultaneously support WPA and WEP encryption.
Ensure that you have the wireless computer enabled in the list of
allowed MAC addresses if you are using MAC Address Filtering on the
Router.
If you are having difficulty connecting or are operating at a low speed
try changing the antenna positions on the rear of the Router.
For more effective coverage you can try reorientating your antennae.
Place one antenna vertically and one horizontally to improve coverage.
Additionally consider moving the wireless computer closer to the
Router to confirm that the building structure or fittings are not
adversely affecting the connectivity. If this resolves the problem
consider relocating the wireless computer or the Router, or trying a
different channel on the Router.
■
Sources of interference: The 2.4Ghz ISM band is used for 802.11b,
802.11g, and 802.11n. This is generally a licence free band for low
power applications, and you may have other devices at your location
that operate in this frequency band. You should take care to ensure
that there are no devices, like microwave ovens for example, close to
the Router or wireless computers as this could affect receiver
sensitivity and reduce the performance of your network. If you are
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CHAPTER 6: TROUBLESHOOTING
unsure try relocating both the wireless computers and the Router to
establish whether this problem exists.
■
Most wireless computer adapters will scan the channels for the
wireless Router. If a wireless computer has not located the Router then
try initiating a search manually if the client software supports this
feature or manually set the channel on your wireless computer to
correspond to the Router channel number. Please refer to your
wireless computer adapter documentation and vendor to do this.
■
Speed of connection: The 802.11b and 802.11g standards will
automatically choose the best speed depending on the quality of your
connection. As the signal quality weakens then the speed falls back to
a lower speed. The speeds supported by 802.11g are 54 Mbps,
48 Mbps, 36 Mbps, 24 Mbps, 18 Mbps, 12 Mbps and 6 Mbps. The
speeds supported by 802.11b are 11 Mbps, 5.5 Mbps, 2 Mbps and
1 Mbps. In general the closer you are to the Router the better the
speed. If you are not achieving the speed you had anticipated then try
moving the antenna on the Router or moving the wireless computer
closer to the Router. In an ideal network the Router should be located
in the centre of the network with wireless computers distributed
around it. Applications are generally available with the computer
wireless card to carry out a site survey. Use this application to find the
optimal siting for your wireless computer. Consult your computer card
documentation and vendor for more details.
Recovering from
If the system software has become corrupted, the Router will enter a
Corrupted Software “recovery” state; DHCP is enabled, and the LAN IP address is set to
192.168.1.1. Follow the instructions below to upload a new copy of the
system software to a Router unit in this state.
file stored on its hard disk or available on CD-ROM.
Check on www.3com.com for the latest version firmware.
1 Remove power from the Router and disconnect the telephone line and all
your computers, except for the one computer with the software image.
2 You will need to reconfigure this computer to obtain an IP address
automatically (see Obtaining an IP Address Automatically on page 27).
3 Restart the computer, and re-apply power to the Router.
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Power Adapter 141
4 Using the Web browser on the computer, enter the following URL in the
location bar:
http://192.168.1.1.
This will connect you to the Recovery utility in the Router.
5 Follow the on-screen instructions. Enter the path and file name of the
software image file.
6 When the upload has completed, the Router will restart, run the self-test
and, if successful, resume normal operation.
7 Refer to the Installation Guide to reconnect your Router to the telephone
line and the computers in your network. Do not forget to reconfigure the
computer you used for the software upload.
If the Router does not resume normal operation following the upload, it
may be faulty. Contact your supplier for advice.
Power Adapter
Power Status Logo not lit.
This is probably because the Router does not have power. Check the
following:
■
■
■
Make sure the power lead from the power adapter is properly
connected and the cord is not damaged.
Ensure the power adapter is correctly fitted into the power outlet
socket and that the socket switch is turned on if applicable.
Ensure you are using only the 3Com power adapter supplied with the
Router.
If there is still no power, contact 3Com Technical Support for assistance.
Caution: Only use the power adapter supplied with the Router or a
replacement 3Com power adapter. Do not use any other power adapter.
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CHAPTER 6: TROUBLESHOOTING
For reference, the part number for the power adapter supplied for your
region is:
3Com Number
Region
3C15VHUS
3C15VHUK
3C15VHME
3C15VHAA
3C15VHSA
3C15VHRA
US and Canada
UK
Europe and Middle East
Australasia (except Japan and Korea)
South Africa
Argentina
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Frequently Asked Questions 143
Frequently Asked
Questions
How do I reset the Router to Factory Defaults?
See Forgotten Password and Reset to Factory Defaults on
page 138.
How many computers on the LAN does the Router support?
Up to a maximum number of 253 total users on the LAN are
supported. Please note that the maximum number of users
supported will be vary depending on the amount of traffic that
each user generates.
How many wireless clients does the Router support?
Up to 32 wireless clients are supported. Please note that the total
practical number of wireless users depends on the network
environment and the amount of bandwidth consumed by each
user.
There are only 4 LAN ports on the Router. How are additional
computers connected?
You can expand the number of connections available on your LAN
by using hubs, switches and wireless access points connected to
the Router. 3Com wireless access points, and hubs and switches
provide a simple, reliable means of expanding your network;
contact your supplier for more information, or visit:
http://www.3com.com/
Does the Router support virtual private networks (VPNs)?
The Router supports both VPN passthrough and VPN
initiation/termination. VPN initiation/termination is useful when
you need to establish a secure site-to-site communication or make
your network accessible to remote teleworkers.
VPN passthrough is used when you are connected to 3Com Router
and access the corporate network from your laptop with VPN
client.
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CHAPTER 6: TROUBLESHOOTING
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IP ADDRESSING
A
The Internet
Protocol Suite
The Internet Protocol suite consists of a well-defined set of
communications protocols and several standard application protocols.
Transmission Control Protocol/Internet Protocol (TCP/IP) is probably the
most widely known and is a combination of two of the protocols (IP and
TCP) working together. TCP/IP is an internationally adopted and
supported networking standard that provides connectivity between
equipment from many vendors over a wide variety of networking
technologies.
Managing the
Router over the
Network
To manage a device over the network, the Router must be correctly
configured with the following IP information:
■
An IP address
■
A subnet mask
IP Addresses and Each device on your network must have a unique IP address to operate
Subnet Masks correctly. An IP address identifies the address of the device to which data
is being sent and the address of the destination network. IP addresses
have the format n.n.n.x where n is a decimal number between 0 and 255
and x is a number between 1 and 254 inclusive.
However, an IP address alone is not enough to make your device operate.
In addition to the IP address, you need to set a subnet mask. All networks
are divided into smaller sub-networks and a subnet mask is a number
that enables a device to identify the sub-network to which it is
connected.
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146
APPENDIX A: IP ADDRESSING
For your network to work correctly, all devices on the network must have:
■
The same sub-network address.
The same subnet mask.
■
The only value that will be different is the specific host device number.
This value must always be unique.
An example IP address is ‘192.168.100.8’. However, the size of the
network determines the structure of this IP address. In using the Router,
you will probably only encounter two types of IP address and subnet
mask structures.
Type One
In a small network, the IP address of ‘192.168.100.8’ is split into two
parts:
■
Part one (‘192.168.100’) identifies the network on which the device
resides.
■
Part two (‘.8’) identifies the device within the network.
This type of IP address operates on a subnet mask of ‘255.255.255.0’.
See Table 3 for an example about how a network with three computers
and a Router might be configured.
Table 3 IP Addressing and Subnet Masking
Device
PC 1
IP Address
Subnet Mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
192.168.100.8
192.168.100.33
192.168.100.188
192.168.100.72
PC 2
PC 3
Router
Type Two
In larger networks, where there are more devices, the IP address of
‘192.168.100.8’ is, again, split into two parts but is structured differently:
■
Part one (‘192.168’) identifies the network on which the device
resides.
■
Part two (‘.100.8’) identifies the device within the network.
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How does a Device Obtain an IP Address and Subnet Mask? 147
This type of IP Address operates on a subnet mask of ‘255.255.0.0’.
See Table 4 for an example about how a network (only four computers
represented) and a Router might be configured.
Table 4 IP Addressing and Subnet Masking
Device
PC 1
IP Address
Subnet Mask
255.255.0.0
255.255.0.0
255.255.0.0
255.255.0.0
255.255.0.0
192.168.100.8
192.168.201.30
192.168.113.155
192.168.002.230
192.168.002.72
PC 2
PC 3
PC 4
Router
How does a Device
Obtain an IP
There are three different ways to obtain an IP address and the subnet
mask. These are:
Address and Subnet
Mask?
■
■
■
Dynamic Host Configuration Protocol (DHCP) Addressing
Static Addressing
Automatic Addressing (Auto-IP Addressing)
DHCP Addressing The Router contains a DHCP server, which allows computers on your
network to obtain an IP address and subnet mask automatically. DHCP
assigns a temporary IP address and subnet mask which gets reallocated
once you disconnect from the network.
DHCP will work on any client Operating System such as Windows 98,
Windows NT 4.0, Windows 2000, Windows XP, and Windows Vista.
Also, using DHCP means that the same IP address and subnet mask will
never be duplicated for devices on the network. DHCP is particularly
useful for networks with large numbers of users on them.
Static Addressing You must enter an IP Address and the subnet mask manually on every
device. Using a static IP and subnet mask means the address is
permanently fixed.
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148
APPENDIX A: IP ADDRESSING
Auto-IP Addressing Network devices use automatic IP addressing if they are configured to
acquire an address using DHCP but are unable to contact a DHCP server.
Automatic IP addressing is a scheme where devices allocate themselves
an IP address at random from the industry standard subnet of
169.254.x.x (with a subnet mask of 255.255.0.0). If two devices allocate
themselves the same address, the conflict is detected and one of the
devices allocates itself a new address.
Automatic IP addressing support was introduced by Microsoft in the
Windows 98 operating system and is also supported in Windows 2000
and Windows XP.
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TECHNICAL SPECIFICATIONS
B
This section lists the technical specifications for the 3Com Wireless 11n
ADSL Firewall Router.
3Com Wireless 11n
Cable/DSL Firewall
Router
Interfaces
ADSL connection
LAN connection — four 10 Mbps/100 Mbps dual speed Ethernet ports
(10BASE-T/100BASE-TX)
Antenna
Two external Dipole antennas for TX/RX function and the gain value
is 2 dBi.
One internal PIFA antenna for RX function only and the gain value
is 2 dBi.
WLAN Interfaces
IEEE draft 802.11n, Orthogonal Frequency Division Multiplexing (OFDM)
Transmission rate: 802.11n 40 MHz: 300 Mbps, automatic fallback to
243, 216, 162, 135, 121,5, 108, 81, 54, 40.5, 27, 13.5 Mbps
802.11n 20 MHz: 130 Mbps, automatic fallback to 117, 104, 78, 65,
58.5, 52, 39, 26, 19.5, 13, 6.5 Mbps
Maximum channels: 13
Range up to 304.8 m (1000 ft)
Sensitivity: 11 Mbps: -82 dBm; 54 Mbps: -68 dBm;
MCS15 (20 MHz): -65 dBm; MCS15 (40MHz): -62 dBm
Modulation: CCK, BPSK, QPSK, OFDM
Encryption: 40/64 bit WEP, 128 bit WEP, WPA/WPA2
Maximum clients: 128
E.I.R.P: 17 dBm
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150
APPENDIX B: TECHNICAL SPECIFICATIONS
Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS)
Transmission rate: 54 Mbps, automatic fallback to 48, 36, 24, 18, 12, or
6 Mbps
Maximum channels: 13
Range up to 304.8 m (1000 ft)
Sensitivity: 6, 12, 18, 24, 36, 48 Mbps: -85 dBm;
54 Mbps -66 dBm typical
Modulation: CCK, BPSK, QPSK, OFDM
Encryption: 40/64 bit WEP, 128 bit WEP, WPA/WPA2
Maximum clients: 128
E.I.R.P: 17 dBm
Standard IEEE 802.11b, Direct Sequence Spread Spectrum (DSSS)
Transmission rate: 11Mbps, automatic fallback to 5.5, 2, or 1 Mbps
Maximum channels: 13
Range up to 304.8 m (1000 ft)
Sensitivity: 1, 2, 5.5 Mbps: -85 dBm; 11 Mbps -82 dBm typical
Modulation: CCK, BPSK, QPSK
Encryption: 40/64 bit WEP, 128 bit WEP, WPA/WPA2
Maximum clients: 128
E.I.R.P: 19.5 dBm
Operating Temperature
0 °C to 40 °C (32 °F to 105 °F)
Power
15V1A Max
Humidity
0% to 90% (non-condensing) humidity
Dimensions
■
■
■
Width = 178 mm (7.0 in.)
Depth = 160 mm (6.1 in.)
Height = 39 mm (1.5 in.)
Weight
Approximately 285 g
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3Com Wireless 11n Cable/DSL Firewall Router 151
Standards Functional:
ISO 8802/3
IEEE 802.3
IEEE 802.11b, 802.11g
Safety:
EMC:
EN 60950-1: 2001
UL 60950-1
IEC 60950-1: 2001
FCC Part15 B
EN 55022
EN 55024
EN 61000
EN 301 489-1
ICES-003
Radio
RSS-210
EN 300 328
Environmental: EN 60068 (IEC 68)
Telcom FCC Part68
*See Regulatory Notices for conditions of operation.
System Requirements Operating Systems
The Router will support the following Operating Systems:
■
■
■
■
■
■
■
■
Windows 98Se
Windows NT 4.0
Windows ME
Windows 2000
Windows XP
Windows Vista
Mac OS 8.5 or higher
Unix
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152
APPENDIX B: TECHNICAL SPECIFICATIONS
Ethernet Performance The Router complies to the IEEE 802.3i, u and x specifications.
Cable Specifications The Router supports the following cable types and maximum lengths:
■
Category 5 (Fast Ethernet or Dual Speed Ethernet) Twisted Pair —
shielded and unshielded cable types.
■
Maximum cable length of 100 m (327.86 ft).
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SAFETY INFORMATION
C
Important Safety
Information
WARNING: Warnings contain directions that you must follow for your
personal safety. Follow all directions carefully.
You must read the following safety information carefully before you
install or remove the unit:
WARNING: The Router generates and uses radio frequency (rf) energy. In
some environments, the use of rf energy is not permitted. The user
should seek local advice on whether or not rf energy is permitted within
the area of intended use.
WARNING: Exceptional care must be taken during installation and
removal of the unit.
WARNING: To ensure compliance with international safety standards,
only use the power adapter that is supplied with the unit.
WARNING: The socket outlet must be near to the unit and easily
accessible. You can only remove power from the unit by disconnecting
the power cord from the outlet.
WARNING: This unit operates under SELV (Safety Extra Low Voltage)
conditions according to IEC 60950. The conditions are only maintained
if the equipment to which it is connected also operates under SELV
conditions.
WARNING: There are no user-replaceable fuses or user-serviceable
parts inside the Router. If you have a physical problem with the unit
that cannot be solved with problem solving actions in this guide,
contact your supplier.
WARNING: Disconnect the power adapter before moving the unit.
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154
APPENDIX C: SAFETY INFORMATION
WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. They
cannot be used as telephone sockets. Only connect RJ-45 data
connectors to these sockets.
Wichtige
Sicherheitshinweise
VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer
eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig
zu befolgen.
Sie müssen die folgenden Sicherheitsinformationen sorgfältig
durchlesen, bevor Sie das Geräts installieren oder ausbauen:
VORSICHT: Der Router erzeugt und verwendet Funkfrequenz (RF). In
manchen Umgebungen ist die Verwendung von Funkfrequenz nicht
gestattet. Erkundigen Sie sich bei den zuständigen Stellen, ob die
Verwendung von Funkfrequenz in dem Bereich, in dem der Bluetooth
Access Point eingesetzt werden soll, erlaubt ist.
VORSICHT: Bei der Installation und beim Ausbau des Geräts ist mit
höchster Vorsicht vorzugehen.
VORSICHT: Aufgrund von internationalen Sicherheitsnormen darf das
Gerät nur mit dem mitgelieferten Netzadapter verwendet werden.
VORSICHT: Die Netzsteckdose muß in der Nähe des Geräts und leicht
zugänglich sein. Die Stromversorgung des Geräts kann nur durch
Herausziehen des Gerätenetzkabels aus der Netzsteckdose
unterbrochen werden.
VORSICHT: Der Betrieb dieses Geräts erfolgt unter den
SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950.
Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät
angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.
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155
VORSICHT: Es sind keine von dem Benutzer zu ersetzende oder zu
wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit
dem Router haben, das nicht mittels der Fehleranalyse in dieser
Anleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanten
in Verbindung.
VORSICHT: Vor dem Ausbau des Geräts das Netzadapterkabel
herausziehen.
VORSICHT: RJ-45-Anschlüsse. Dies sind abgeschirmte
RJ-45-Datenbuchsen. Sie können nicht als Telefonanschlußbuchsen
verwendet werden. An diesen Buchsen dürfen nur RJ-45-Datenstecker
angeschlossen werden.
Consignes
importantes de
sécurité
AVERTISSEMENT: Les avertissements présentent des consignes que
vous devez respecter pour garantir votre sécurité personnelle. Vous
devez respecter attentivement toutes les consignes.
Nous vous demandons de lire attentivement les consignes suivantes de
sécurité avant d’installer ou de retirer l’appareil:
AVERTISSEMENT: La Router fournit et utilise de l'énergie
radioélectrique (radio fréquence -rf). L'utilisation de l'énergie
radioélectrique est interdite dans certains environnements. L'utilisateur
devra se renseigner sur l'autorisation de cette énergie dans la zone
prévue.
AVERTISSEMENT: Faites très attention lors de l'installation et de la
dépose du groupe.
AVERTISSEMENT: Pour garantir le respect des normes internationales
de sécurité, utilisez uniquement l'adaptateur électrique remis avec cet
appareil.
AVERTISSEMENT: La prise secteur doit se trouver à proximité de
l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil
hors circuit qu'en débranchant son cordon électrique au niveau de
cette prise.
AVERTISSEMENT: L’appareil fonctionne à une tension extrêmement
basse de sécurité qui est conforme à la norme CEI 60950. Ces
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156
APPENDIX C: SAFETY INFORMATION
conditions ne sont maintenues que si l'équipement auquel il est
raccordé fonctionne dans les mêmes conditions.
AVERTISSEMENT: Il n’y a pas de parties remplaceables par les
utilisateurs ou entretenues par les utilisateurs à l’intérieur du moyeu. Si
vous avez un problème physique avec le moyeu qui ne peut pas être
résolu avec les actions de la résolution des problèmes dans ce guide,
contacter votre fournisseur.
AVERTISSEMENT: Débranchez l'adaptateur électrique avant de retirer
cet appareil.
AVERTISSEMENT: Ports RJ-45. Il s'agit de prises femelles blindées de
données RJ-45. Vous ne pouvez pas les utiliser comme prise de
téléphone. Branchez uniquement des connecteurs de données RJ-45 sur
ces prises femelles.
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END USER SOFTWARE LICENSE
AGREEMENT
D
3Com Corporation
END USER SOFTWARE LICENSE AGREEMENT
YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE DOWNLOADING, INSTALLING AND USING THIS
PRODUCT, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION ("3COM") TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH
BELOW. DOWNLOADING, INSTALLING OR OTHERWISE USING ANY PART OF THE SOFTWARE OR DOCUMENTATION INDICATES THAT YOU
ACCEPT THESE TERMS AND CONDITIONS. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT, DO NOT
DOWNLOAD, INSTALL OR OTHERWISE USE THE SOFTWARE OR DOCUMENTATION, DO NOT CLICK ON THE "I AGREE" OR SIMILAR
BUTTON.AND IF YOU HAVE RECEIVED THE SOFTWARE AND DOCUMENTATION ON PHYSICAL MEDIA, RETURN THE ENTIRE PRODUCT WITH
THE SOFTWARE AND DOCUMENTATION UNUSED TO THE SUPPLIER WHERE YOU OBTAINED IT.
LICENSE: 3Com grants you a nonexclusive, nontransferable (except as specified herein) license to use the accompanying software program(s) in
executable form (the "Software") and accompanying documentation (the "Documentation"), subject to the terms and restrictions set forth in this
Agreement. You are not permitted to lease, rent, distribute or sublicense (except as specified herein) the Software or Documentation or to use the
Software or Documentation in a time-sharing arrangement or in any other unauthorized manner. Further, no license is granted to you in the human
readable code of the Software (source code). Except as provided below, this Agreement does not grant you any rights to patents, copyrights, trade
secrets, trademarks, or any other rights with respect to the Software or Documentation.
Subject to the restrictions set forth herein, the Software is licensed to be used on any workstation or any network server owned by or leased to you, for
your internal use, provided that the Software is used only in connection with this 3Com product. You may reproduce and provide one (1) copy of the
Software and Documentation for each such workstation or network server on which the Software is used as permitted hereunder. Otherwise, the
Software and Documentation may be copied only as essential for backup or archive purposes in support of your use of the Software as permitted
hereunder. Each copy of the Software and Documentation must contain 3Com's and its licensors' proprietary rights and copyright notices in the same
form as on the original. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation delivered to
you under this Agreement.
ASSIGNMENT; NO REVERSE ENGINEERING: You may transfer the Software, Documentation and the licenses granted herein to another party in the
same country in which you obtained the Software and Documentation if the other party agrees in writing to accept and be bound by the terms and
conditions of this Agreement. If you transfer the Software and Documentation, you must at the same time either transfer all copies of the Software and
Documentation to the party or you must destroy any copies not transferred. Except as set forth above, you may not assign or transfer your rights under
this Agreement.
Modification, reverse engineering, reverse compiling, or disassembly of the Software is expressly prohibited. However, if you are a European Union
("EU") resident, information necessary to achieve interoperability of the Software with other programs within the meaning of the EU Directive on the
Legal Protection of Computer Programs is available to you from 3Com upon written request.
EXPORT RESTRICTIONS: The Software, including the Documentation and all related technical data (and any copies thereof) (collectively "Technical
Data"), is subject to United States Export control laws and may be subject to export or import regulations in other countries. In addition, the Technical
Data covered by this Agreement may contain data encryption code which is unlawful to export or transfer from the United States or country where you
legally obtained it without an approved U.S. Department of Commerce export license and appropriate foreign export or import license, as required. You
agree that you will not export or re-export the Technical Data (or any copies thereof) or any products utilizing the Technical Data in violation of any
applicable laws or regulations of the United States or the country where you legally obtained it. You are responsible for obtaining any licenses to export,
re-export or import the Technical Data.
In addition to the above, the Product may not be used, exported or re-exported (i) into or to a national or resident of any country to which the U.S. has
embargoed; or (ii) to any one on the U.S. Commerce Department's Table of Denial Orders or the U.S. Treasury Department's list of Specially Designated
Nationals.
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158
APPENDIX D: END USER SOFTWARE LICENSE AGREEMENT
TRADE SECRETS; TITLE: You acknowledge and agree that the structure, sequence and organization of the Software are the valuable trade secrets of
3Com and its suppliers. You agree to hold such trade secrets in confidence. You further acknowledge and agree that ownership of, and title to, the
Software and Documentation and all subsequent copies thereof regardless of the form or media are held by 3Com and its suppliers.
UNITED STATES GOVERNMENT LEGENDS: The Software, Documentation and any other technical data provided hereunder is commercial in nature
and developed solely at private expense. The Software is delivered as "Commercial Computer Software" as defined in DFARS 252.227-7014 (June
1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in this Agreement, which is
3Com's standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov.
1995) or FAR 52.227-14 (June 1987), whichever is applicable.
TERM AND TERMINATION: The licenses granted hereunder are perpetual unless terminated earlier as specified below. You may terminate the licenses
and this Agreement at any time by destroying the Software and Documentation together with all copies and merged portions in any form. The licenses
and this Agreement will also terminate immediately if you fail to comply with any term or condition of this Agreement. Upon such termination you
agree to destroy the Software and Documentation, together with all copies and merged portions in any form.
LIMITED WARRANTIES AND LIMITATION OF LIABILITY: All warranties and limitations of liability applicable to the Software are as stated on the
Limited Warranty Card or in the product manual, whether in paper or electronic form, accompanying the Software; however, this End User Software
License Agreement amends such Limited Warranty Card or product manual as follows: 3Com's warranty and warranty disclaimers for the materials
runs from 3Com to the purchasing Internet Service Provider only (not the end user of the materials), and such warranty is only for a total of fifteen (15)
months from the date of manufacture. Such warranties and limitations of liability are incorporated herein in their entirety by this reference. THERE ARE
NO IMPLIED WARRANTIES. THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXCLUDED.
GOVERNING LAW: This Agreement shall be governed by the laws of the Commonwealth of Massachusetts, U.S.A. excluding its conflicts of laws
principles and excluding the United Nations Convention on Contracts for the International Sale of Goods.
SEVERABILITY: In the event any provision of this Agreement is found to be invalid, illegal or unenforceable, the validity, legality and enforceability of
any of the remaining provisions shall not in any way be affected or impaired and a valid, legal and enforceable provision of similar intent and economic
impact shall be substituted therefor.
ENTIRE AGREEMENT: This Agreement sets forth the entire understanding and agreement between you and 3Com and supersedes all prior
agreements, whether written or oral, with respect to the Software and Documentation, and may be amended only in a writing signed by both parties.
Should you have any questions concern this Agreement or if you desire to contact 3Com for any reason, please contact the 3Com subsidiary serving
your country, or write:
3Com Corporation, 350 Campus Drive, Marlborough, MA. USA 01752-3064
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159
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OBTAINING SUPPORT FOR
YOUR 3COM PRODUCTS
E
3Com offers product registration, case management, and repair services
through eSupport.3com.com. You must have a user name and password
to access these services, which are described in this appendix.
Register Your
Product to Gain
Service Benefits
To take advantage of warranty and other service benefits, you must first
register your product at: http://eSupport.3com.com/
3Com eSupport services are based on accounts that are created or that
you are authorized to access.
Solve Problems
Online
3Com offers the following support tool:
■
3Com Knowledgebase — Helps you to troubleshoot 3Com
products. This query-based interactive tool is located at:
It contains thousands of technical solutions written by 3Com support
engineers.
Purchase Extended
Warranty and
Professional
Services
To enhance response times or extend your warranty benefits, you can
purchase value-added services such as 24x7 telephone technical support,
software upgrades, onsite assistance, or advanced hardware
replacement.
Experienced engineers are available to manage your installation with
minimal disruption to your network. Expert assessment and
implementation services are offered to fill resource gaps and ensure the
success of your networking projects. For more information on 3Com
Extended Warranty and Professional Services, see:
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Access Software Downloads 161
Contact your authorized 3Com reseller or 3Com for additional product
and support information. See the table of access numbers later in this
appendix.
Access Software
Downloads
You are entitled to bug fix / maintenance releases for the version of
software that you initially purchased with your 3Com product. To obtain
access to this software, you need to register your product and then use
the Serial Number as your login. Restricted Software is available at:
http://eSupport.3com.com/
To obtain software releases that follow the software version that you
originally purchased, 3Com recommends that you buy an Express or
Guardian contract, a Software Upgrades contract, or an equivalent
support contract from 3Com or your reseller. Support contracts that
include software upgrades cover feature enhancements, incremental
functionality, and bug fixes, but they do not include software that is
released by 3Com as a separately ordered product. Separately orderable
software releases and licenses are listed in the 3Com Price List and are
available for purchase from your 3Com reseller.
Contact Us
3Com offers telephone, internet, and e-mail access to technical support
and repair services. To access these services for your region, use the
appropriate telephone number, URL, or e-mail address from the table in
the next section.
Telephone Technical To obtain telephone support as part of your warranty and other service
Support and Repair benefits, you must first register your product at:
When you contact 3Com for assistance, please have the following
information ready:
■
■
■
■
Product model name, part number, and serial number
A list of system hardware and software, including revision level
Diagnostic error messages
Details about recent configuration changes, if applicable
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162
APPENDIX E: OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS
To send a product directly to 3Com for repair, you must first obtain a
return materials authorization number (RMA). Products sent to 3Com
without authorization numbers clearly marked on the outside of the
package will be returned to the sender unopened, at the sender’s
expense. If your product is registered and under warranty, you can obtain
must apply for a user name and password.
Telephone numbers are correct at the time of publication. Find a current
directory of 3Com resources by region at:
Country
Telephone Number
Country
Telephone Number
Asia, Pacific Rim — Telephone Technical Support and Repair
Australia
Hong Kong
India
Indonesia
Japan
Malaysia
New Zealand
1800 075 316
2907 0456
000 800 440 1193
001 803 852 9825
03 3507 5984
1800 812 612
0800 450 454
Philippines
1800 144 10220 or
029003078
800 810 0504
800 616 1463
080 698 0880
00801 444 318
001 800 441 2152
PR of China
Singapore
South. Korea
Taiwan
Thailand
Pakistan Call the U.S. direct by dialing 00 800 01001, then dialing 800 763 6780
Sri Lanka Call the U.S. direct by dialing 02 430 430, then dialing 800 763 6780
Vietnam Call the U.S. direct by dialing 1 201 0288, then dialing 800 763 6780
You can also obtain non-urgent support in this region at this email address:
Or request a return material authorization number (RMA) by FAX using this number:
+61 2 9937 5048, or send an email at this email address: [email protected]
Europe, Middle East, and Africa — Telephone Technical Support and Repair
From anywhere in these regions not listed below, call: +44 1442 435529
From the following countries, call the appropriate number:
Austria
Belgium
Denmark
Finland
France
Germany
Hungary
Ireland
Israel
0800 297 468
0800 71429
800 17309
0800 113153
0800 917959
0800 182 1502
06800 12813
1 800 553 117
180 945 3794
800 879489
Luxembourg
Netherlands
Norway
Poland
Portugal
Russia
Saudi Arabia
South Africa
Spain
Sweden
Switzerland
U.A.E
800 23625
0800 0227788
800 11376
00800 4411 357
800 831416
88005558588
800 8 445 312
0800 995 014
900 938 919
020 795 482
0800 553 072
04-3908997
0800 096 3266
Italy
U.K.
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Contact Us 163
Country
Telephone Number
Country
Telephone Number
You can also obtain support in this region using this URL:
You can also obtain non-urgent support in this region at these email addresses:
Technical support and general requests: [email protected]
Return material authorization: [email protected]
Contract requests: [email protected]
Latin America — Telephone Technical Support and Repair
Antigua
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
0800-133266 (0800-13-3COM)
+5511 5643 2700
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 998 2112
+571 592 5000
Grenada
Guadalupe
Guatemala
Guyana
Haiti
Honduras
Jamaica
AT&T +800 988 2112
AT&T +800 998 2112
AT&T +800 988 2112
AT&T +800 998 2112
AT&T +800 988 2112
AT&T +800 988 2112
AT&T +800 988 2112
1800 849 2273
+52-55-52-01-0004
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
Antigua Barbuda
Argentina
Aruba
Bahamas
Barbados
Belize
Bermuda
Bolivia
Brasil
Brasil Local
British Virgin islands
Cayman islands
Chile
Mexico
Mexico Local
Monserrat
Nicaragua
Panama
Paraguay
Peru
Puerto Rico
Rest of Latin America 508 323 6234
St. Kitts Nevis
St. Lucia
St. Vincent
Colombia
Columbia Local
Costa Rica
Curacao
Dominican Republic
El Salvador
Ecuador
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
AT&T +800 998 2112
Suriname
Trinidad and Tobago
Turks and Caicos
French Guyana
Uruguay - Montevideo AT&T +800 998 2112
Venezuela
Virgin Islands
AT&T +800 998 2112
AT&T +800 998 2112
You can also obtain support in this region in the following ways:
■
■
■
Spanish speakers, enter the URL:
Portuguese speakers, enter the URL:
English speakers in Latin America, send e-mail to:
US and Canada — Telephone Technical Support and Repair
All locations: All 3Com products: 1 800 876 3266
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APPENDIX E: OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS
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GLOSSARY
802.11b The IEEE specification for wireless Ethernet which allows speeds of up to
11 Mbps. The standard provides for 1, 2, 5.5 and 11 Mbps data rates.
The rates will switch automatically depending on range and environment.
802.11g The IEEE specification for wireless Ethernet which allows speeds of up to
54 Mbps. The standard provides for 6, 12, 24, 36, 48 and 54 Mbps data
rates. The rates will switch automatically depending on range and
environment.
802.11n The IEEE specification for wireless Ethernet which allows speeds of up to
248 Mbps. 802.11n is a proposed amendment which improves upon the
previous 802.11 standards by adding multiple-input multiple-output
(MIMO) and many other newer features.
10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5
twisted pair cable.
100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5
twisted-pair cable.
Access Point An access point is a device through which wireless clients connect to
other wireless clients and which acts as a bridge between wireless clients
and a wired network, such as Ethernet. Wireless clients can be moved
anywhere within the coverage area of the access point and still connect
with each other. If connected to an Ethernet network, the access point
monitors Ethernet traffic and forwards appropriate Ethernet messages to
the wireless network, while also monitoring wireless client radio traffic
and forwarding wireless client messages to the Ethernet LAN.
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166
GLOSSARY
Ad Hoc mode Ad Hoc mode is a configuration supported by most wireless clients. It is
used to connect a peer to peer network together without the use of an
access point. It offers lower performance than infrastructure mode, which
is the mode the router uses. (see Infrastructure mode.)
Auto-negotiation Some devices in the range support auto-negotiation. Auto-negotiation is
where two devices sharing a link, automatically configure to use the best
common speed. The order of preference (best first) is: 100BASE-TX full
duplex, 100BASE-TX half duplex, 10BASE-T full duplex, and 10BASE-T
half duplex. Auto-negotiation is defined in the IEEE 802.3 standard for
Ethernet and is an operation that takes place in a few milliseconds.
Bandwidth The information capacity, measured in bits per second, that a channel can
transmit. The bandwidth of Ethernet is 10 Mbps, the bandwidth of Fast
Ethernet is 100 Mbps. The bandwidth for 802.11b wireless is 11Mbps.
Category 3 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-586
standard. Category 3 is voice grade cable and can only be used in
Ethernet networks (10BASE-T) to transmit data at speeds of up to 10
Mbps.
Category 5 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-586
standard. Category 5 can be used in Ethernet (10BASE-T) and Fast
Ethernet networks (100BASE-TX) and can transmit data up to speeds of
100 Mbps. Category 5 cabling is better to use for network cabling than
Category 3, because it supports both Ethernet (10 Mbps) and Fast
Ethernet (100 Mbps) speeds.
Channel Similar to any radio device, the Wireless Cable/DSL router allows you to
choose different radio channels in the wireless spectrum. A channel is a
particular frequency within the 2.4GHz spectrum within which the Router
operates.
Client The term used to describe the desktop PC that is connected to your
network.
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GLOSSARY 167
DHCP Dynamic Host Configuration Protocol. This protocol automatically assigns
an IP address for every computer on your network. Windows 95,
Windows 98, Windows NT 4.0, Windows 2000, Windows XP, and
Windows Vista contain software that assigns IP addresses to workstations
on a network. These assignments are made by the DHCP server software
that runs on Windows operating systems.
DNS Server Address DNS stands for Domain Name System, which allows Internet host
computers to have a domain name (such as 3com.com) and one or more
IP addresses (such as 192.34.45.8). A DNS server keeps a database of
host computers and their respective domain names and IP addresses, so
that when a domain name is requested (as in typing “3com.com” into
your Internet browser), the user is sent to the proper IP address. The DNS
server address used by the computers on your home network is the
location of the DNS server your ISP has assigned.
DSL modem DSL stands for digital subscriber line. A DSL modem uses your existing
phone lines to send and receive data at high speeds.
Encryption A method for providing a level of security to wireless data transmissions.
The Router uses two levels of encryption; 40/64 bit and 128 bit. 128 bit is
a more powerful level of encryption than 40/64 bit.
ESSID Extended Service Set Identifier. The ESSID is a unique identifier for your
wireless network. You must have the same ESSID entered into the Router
and each of it's wireless clients.
Ethernet A LAN specification developed jointly by Xerox, Intel and Digital
Equipment Corporation. Ethernet networks use CSMA/CD to transmit
packets at a rate of 10 Mbps over a variety of cables.
Ethernet Address See MAC address.
Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps.
Firewall Electronic protection that prevents anyone outside of your network from
seeing your files or damaging your computers.
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168
GLOSSARY
Full Duplex A system that allows packets to be transmitted and received at the same
time and, in effect, doubles the potential throughput of a link.
Half Duplex A system that allows packets to transmitted and received, but not at the
same time. Contrast with full duplex.
Hub A device that regenerates LAN traffic so that the transmission distance of
that signal can be extended. Hubs are similar to repeaters, in that they
connect LANs of the same type; however they connect more LANs than a
repeater and are generally more sophisticated.
IEEE Institute of Electrical and Electronics Engineers. This American
organization was founded in 1963 and sets standards for computers and
communications.
IETF Internet Engineering Task Force. An organization responsible for
providing engineering solutions for TCP/IP networks. In the network
management area, this group is responsible for the development of the
SNMP protocol.
Infrastructure mode Infrastructure mode is the wireless configuration supported by the Router.
You will need to ensure all of your clients are set up to use infrastructure
mode in order for them to communicate with the Access Point built into
your Router. (see also Ad Hoc mode)
IP Internet Protocol. IP is a Layer 3 network protocol that is the standard for
sending data through a network. IP is part of the TCP/IP set of protocols
that describe the routing of packets to addressed devices. An IP address
consists of 32 bits divided into two or three fields: a network number and
a host number or a network number, a subnet number, and a host
number.
IP Address Internet Protocol Address. A unique identifier for a device attached to a
network using TCP/IP. The address is written as four octets separated with
periods (full-stops), and is made up of a network section, an optional
subnet section and a host section.
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GLOSSARY 169
IPSec IP Security. Provides IP network-layer encryption. IPSec can support large
encryption networks (such as the Internet) by using digital certificates for
device authentication. When setting up an IPSec connection between
two devices, make sure that they support the same encryption method.
ISP Internet Service Provider. An ISP is a business that provides connectivity to
the Internet for individuals and other businesses or organizations.
LAN Local Area Network. A network of end stations (such as PCs, printers,
servers) and network devices (hubs and switches) that cover a relatively
small geographic area (usually not larger than a floor or building). LANs
are characterized by high transmission speeds over short distances (up to
1000 metres).
MAC Media Access Control. A protocol specified by the IEEE for determining
which devices have access to a network at any one time.
MAC Address Media Access Control Address. Also called the hardware or physical
address. A Layer 2 address associated with a particular network device.
Most devices that connect to a LAN have a MAC address assigned to
them as they are used to identify other devices in a network. MAC
addresses are 6 bytes long.
NAT Network Address Translation. NAT enables all the computers on your
network to share one IP address. The NAT capability of the Router allows
you to access the Internet from any computer on your home network
without having to purchase more IP addresses from your ISP.
Network A network is a collection of computers and other computer equipment
that is connected for the purpose of exchanging information or sharing
resources. Networks vary in size, some are within a single room, others
span continents.
Network Interface A circuit board installed into a piece of computing equipment, for
Card (NIC) example, a computer, that enables you to connect it to the network. A
NIC is also known as an adapter or adapter card.
Protocol A set of rules for communication between devices on a network. The
rules dictate format, timing, sequencing and error control.
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170
GLOSSARY
PPPoE Point-to-Point Protocol over Ethernet. Point-to-Point Protocol is a method
of data transmission originally created for dial-up connections; PPPoE is
for Ethernet connections.
PPTP Point-to-Point Tunneling Protocol is a method of secure data transmission
between two remote sites over the Internet.
RJ-45 A standard connector used to connect Ethernet networks. The “RJ”
stands for “registered jack”.
Router A device that acts as a central hub by connecting to each computer's
network interface card and managing the data traffic between the local
network and the Internet.
Server A computer in a network that is shared by multiple end stations. Servers
provide end stations with access to shared network services such as
computer files and printer queues.
SSID Service Set Identifier. Some vendors of wireless products use SSID
interchangeably with ESSID.
Subnet Address An extension of the IP addressing scheme that allows a site to use a single
IP network address for multiple physical networks.
Subnet Mask A subnet mask, which may be a part of the TCP/IP information provided
by your ISP, is a set of four numbers configured like an IP address. It is
used to create IP address numbers used only within a particular network
(as opposed to valid IP address numbers recognized by the Internet,
which must assigned by InterNIC).
Subnets A network that is a component of a larger network.
Switch A device that interconnects several LANs to form a single logical LAN that
comprises of several LAN segments. Switches are similar to bridges, in
that they connect LANs of a different type; however they connect more
LANs than a bridge and are generally more sophisticated.
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GLOSSARY 171
TCP/IP Transmission Control Protocol/Internet Protocol. This is the name for two
of the most well-known protocols developed for the interconnection of
networks. Originally a UNIX standard, TCP/IP is now supported on almost
all platforms, and is the protocol of the Internet.
TCP relates to the content of the data travelling through a network —
ensuring that the information sent arrives in one piece when it reaches its
destination. IP relates to the address of the end station to which data is
being sent, as well as the address of the destination network.
Traffic The movement of data packets on a network.
Universal Plug and Universal Plug and Play is a system which allows compatible applications
Play to read some of their settings from the Router. This allows them to
automatically configure some, or all, of their settings and need less user
configuration.
URL Filter A URL Filter is a feature of a firewall that allows it to stop its clients form
browsing inappropriate Web sites.
WAN Wide Area Network. A network that connects computers located in
geographically separate areas (for example, different buildings, cities, or
countries). The Internet is an example of a wide area network.
WDS Wireless Distribution System. WDS enables one or more access points to
rebroadcast received signals to extend range and reach, though this can
affect the overall throughput of data.
WECA Wireless Ethernet Compatibility Alliance. An industry group formed to
certify cross vendor interoperability and compatibility of 802.11b and
802.11g wireless networking products and to promote the standard for
enterprise, small business and home environments. (see 802.11b,
802.11g, Wi-Fi)
WEP Wired Equivalent Privacy. A shared key encryption mechanism for wireless
networking. Encryption strength is 40/64 bit or 128 bit.
Wi-Fi Wireless Fidelity. This is the certification granted by WECA to products
that meet their interoperability criteria. (see also 802.11b, WECA)
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172
GLOSSARY
Wireless Client The term used to describe a desktop or mobile PC that is wirelessly
connected to your wireless network.
Wireless LAN Service Another term for ESSID (Extended Service Set Identifier).
Area
Wizard A Windows application that automates a procedure such as installation
or configuration.
WLAN Wireless Local Area Network. A WLAN is a group of computers and
devices connected together by wireless in a relatively small area (such as a
house or office).
WPA Wi-Fi Protected Access. A dynamically changing encryption mechanism
for wireless networking. Encryption strength is 256 bit.
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173
REGULATORY NOTICES
For 3Com Wireless 11n ADSL Firewall Router
GENERAL STATEMENTS
The 3Com Wireless 11n ADSL Firewall Router (WL-603) must be installed and used in strict accordance with
the manufacturer's instructions as described in the user documentation that comes with the product.
This product contains encryption. It is unlawful to export out of the U.S. without obtaining a U.S. Export
License.
This product does not contain any user serviceable components. Any unauthorized product changes or
modifications will invalidate 3Com's warranty and all applicable regulatory certifications and approvals.
This product can only be used with the supplied antenna(s).
EXPOSURE TO RADIO
FREQUENCY RADIATION
This device generates and radiates radio-frequency energy. In order to comply with FCC radio-frequency
exposure guidelines for an uncontrolled environment, this equipment must be installed and operated while
maintaining a minimum body to antenna distance of 20 cm (approximately 8 in.).
The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not
emit RF field in excess of Health Canada limits for the general population; consult Safety Code 6, obtainable
from Health Canada's website www.hc-sc.gc.ca/rpb.
This product must maintain a minimum body to antenna distance of 20 cm. Under these conditions this
product will meet the Basic Restriction limits of 1999/519/EC [Council Recommendation of 12 July 1999 on
the limitation of exposure of the general public to electromagnetic fields (0 Hz to 300 GHz)].
US - RADIO FREQUENCY
REQUIREMENTS
This device must not be co-located or operated in conjunction with any other antenna or transmitter.
US FEDERAL
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one of the following measures:
COMMUNICATIONS
COMMISSION (FCC) EMC
COMPLIANCE
■
■
■
■
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your
body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
2.4GHz operation of this product in the U.S.A. is firmware-limited to channels 1 through 11.
The user may find the following booklet prepared by the Federal Communications Commission helpful:
The Interference Handbook
This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402.
Stock No. 004-000-0034504.
3Com is not responsible for any radio or television interference caused by unauthorized modification of the
devices included with this 3Com Wireless 11n ADSL Firewall Router (WL-603), or the substitution or
attachment of connecting cables and equipment other than specified by 3Com.
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174
The correction of interference caused by such unauthorized modification, substitution or attachment will be
the responsibility of the user.
Changes or modifications not expressly approved by 3Com could void the user's authority to operate this
equipment.
FCC PART68 STATEMENT
This equipment complies with Part 68 of the FCC rules and the requirements adopted by the ACTA. On the
bottom of this equipment is a label that contains, among other information, a product identifier in the format
US: 3CMDL01BWL603. If requested, this number must be provided to the telephone company.
The REN is used to determine the number of devices that may be connected to a telephone line. Excessive
RENs on a telephone line may result in the devices not ringing in response to an incoming call. In most but
not all areas, the sum of RENs should not exceed five (5.0). To be certain of the number of devices that may
be connected to a line, as determined by the total RENs, contact the local telephone company. For products
approved after July 23, 2001, the REN for this product is part of the product identifier that has the format
US: 3CMDL01BWL603. The digits represented by 01 are the REN without a decimal point (e.g., 03 is a REN of
0.3). For earlier products, the REN is separately shown on the label.
A plug and jack used to connect this equipment to the premises wiring and telephone network must comply
with the applicable FCC Part 68 rules and requirements adopted by the ACTA. A compliant telephone cord
and modular plug is provided with this product. It is designed to be connected to a compatible modular jack
that is also compliant. See installation instructions for details.
If your equipment causes harm to the telephone network, the telephone company may discontinue your
service temporarily. If possible, they will notify you in advance. But if advance notice is not practical, you will
be notified as soon as possible. You will be informed of your right to file a complaint with the FCC. Your
telephone company may make changes in it is facilities, equipment, operations or procedures that could
affect the proper functioning of your equipment. If they do, you will be notified in advance to give you an
opportunity to maintain uninterrupted telephone service.
If you experience trouble with this telephone equipment, Please contact the following address and phone
number for information on obtaining service or repairs.
The telephone company may ask that you disconnect this equipment from the network until the problem has
been corrected or until you are sure that the equipment is not malfunctioning.
This equipment may not be used on coin service provided by the telephone company. Connection to party
lines is subject to state tariffs.
Company: 3Com Corporation
Address: 350 Campus Drive
Marlborough, MA 01752-3064, USA
Tel No: (508) 323-5000
US MANUFACTURER'S FCC
DECLARATION OF
CONFORMITY
3Com Corporation
350 Campus Drive
Marlborough, MA 01752-3064, USA
(508) 323-5000
Date: April 24, 2008
Declares that the Product:
Brand Name: 3Com Corporation
Model Number: WL-603
Equipment Type: 3Com Wireless 11n ADSL Firewall Router
Complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
3Com Wireless 11n ADSL Firewall Router
Model WL-603
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175
INDUSTRY CANADA - RF
COMPLIANCE
This device complies with RSS-210 of the Industry Canada Rules.
Operation is subject to the following two conditions:
1) this device may not cause interference and, 2) this device must accept any interference, including
interference that may cause undesired operation of the device.
L ' utilisation de ce dispositif est autorisee seulement aux conditions suivantes: (1) il ne doit pas produire de
brouillage et (2) l' utilisateur du dispositif doit etre pret a accepter tout brouillage radioelectrique recu, meme
si ce brouillage est susceptible de compromettre le fonctionnement du dispositif.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numerique de la class B est conforme a la norme NMB-003 du Canada.
IMPORTANT NOTE:
IC Radiation Exposure Statement:
This equipment complies with Canada radiation exposure limits set forth for uncontrolled environments. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your
body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
2.4GHz operation of this product in Canada is firmware-limited to channels 1 through 11.
INDUSTRY CANADA -
EMISSIONS COMPLIANCE
STATEMENT
This Class B digital apparatus complies with Canadian ICES-003.
AVIS DE CONFORMITÉ À LA
RÉGLEMENTATION
Cet appareil numérique de la classe B est conform à la norme NMB-003 du Canada.
D'INDUSTRIE CANADA
SAFETY COMPLIANCE NOTICE
This device has been tested and certified according to the following safety standards and is intended for use
only in Information Technology Equipment which has been tested to these or other equivalent standards:
■
■
■
■
UL Standard 60950-1
CAN/CSA C22.2 No. 60950-1
IEC 60950-1
EN 60950-1
EU COMPLIANCE
For connection to ADSL networks
This equipment may be operated in:
AT
DE
BE
GR
NL
IS
CY
HU
PL
CZ
IE
DK
IT
EE
LV
SI
FI
FR
LU
SE
LT
ES
MT
GB
PT
SK
LI
NO CH
BG RO TR
Intended use: ADSL 802.11g/b/n Firewall Router
For connection to ADSL networks
NOTE: To ensure product operation is in compliance with local regulations, select the country in which the
product is installed. Refer to 3CRWDR300A-73, 3CRWDR300B-73 User Guide.
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176
Česky
3Com Coporation tímto prohlašuje, ze tento RLAN
device je ve shodě se základními pozadavky a dalšími
příslušnými ustanoveními směrnice 1999/5/ES.
[Czech]
Dansk
Undertegnede 3Com Corporation erklærer herved, at
følgende udstyr RLAN device overholder de
væsentlige krav og øvrige relevante krav i direktiv
1999/5/EF.
[Danish]
Deutsch
Hiermit erklärt 3Com Corporation, dass sich das Gerät
RLAN device in Übereinstimmung mit den
grundlegenden Anforderungen und den übrigen
einschlägigen Bestimmungen der Richtlinie
1999/5/EG befindet.
[German]
Eesti
Käesolevaga kinnitab 3Com Corporation seadme
RLAN device vastavust direktiivi 1999/5/EÜ
põhinõuetele ja nimetatud direktiivist tulenevatele
teistele asjakohastele sätetele.
[Estonian]
English
Hereby, 3Com Corporation, declares that this RLAN
device is in compliance with the essential
requirements and other relevant provisions of
Directive 1999/5/EC.
Español
Por medio de la presente 3Com Corporation declara
que el RLAN device cumple con los requisitos
esenciales y cualesquiera otras disposiciones
aplicables o exigibles de la Directiva 1999/5/CE.
[Spanish]
Ελληνική
ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ 3Com Corporation ΔΗΛΩΝΕΙ ΟΤΙ
RLAN device ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ
ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ
ΔΙΑΤΑΞΕΙΣ ΤΗΣ ΟΔΗΓΙΑΣ 1999/5/ΕΚ.
[Greek]
Français
[French]
Par la présente 3Com Corporation déclare que
l'appareil RLAN device est conforme aux exigences
essentielles et aux autres dispositions pertinentes de
la directive 1999/5/CE.
Italiano
[Italian]
Con la presente 3Com Corporation dichiara che
questo RLAN device è conforme ai requisiti essenziali
ed alle altre disposizioni pertinenti stabilite dalla
direttiva 1999/5/CE.
Latviski
Ar šo 3Com Corporation deklarç, ka RLAN device
atbilst Direktîvas 1999/5/EK bûtiskajâm prasîbâm un
citiem ar to saistîtajiem noteikumiem.
[Latvian]
Lietuviø
Šiuo 3Com Corporation deklaruoja, kad šis RLAN
device atitinka esminius reikalavimus ir kitas
1999/5/EB Direktyvos nuostatas.
[Lithuanian]
Nederlands
[Dutch]
Hierbij verklaart 3Com Corporation dat het toestel
RLAN device in overeenstemming is met de essentiële
eisen en de andere relevante bepalingen van richtlijn
1999/5/EG.
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177
Malti
Hawnhekk, 3Com Corporation, jiddikjara li dan RLAN
device jikkonforma mal-htigijiet essenzjali u ma
provvedimenti ohrajn relevanti li hemm fid-Dirrettiva
1999/5/EC.
[Maltese]
Magyar
Alulírott, 3Com Corporation nyilatkozom, hogy a RLAN
device megfelel a vonatkozó alapvetõ
követelményeknek és az 1999/5/EC irányelv egyéb
elõírásainak.
[Hungarian]
Polski
Niniejszym 3Com Corporation oświadcza, że RLAN
device jest zgodny z zasadniczymi wymogami oraz
pozostałymi stosownymi postanowieniami Dyrektywy
1999/5/EC.
[Polish]
Português
3Com Corporation declara que este RLAN device está
conforme com os requisitos essenciais e outras
disposições da Directiva 1999/5/CE.
[Portuguese]
Slovensko
[Slovenian]
3Com Corporation izjavlja, da je ta RLAN device v
skladu z bistvenimi zahtevami in ostalimi relevantnimi
določili direktive 1999/5/ES.
Slovensky
[Slovak]
3Com Corporation týmto vyhlasuje, ze RLAN device
spĺňa základné poziadavky a všetky príslušné
ustanovenia Smernice 1999/5/ES.
Suomi
3Com Corporation vakuuttaa täten että RLAN device
tyyppinen laite on direktiivin 1999/5/EY oleellisten
vaatimusten ja sitä koskevien direktiivin muiden
ehtojen mukainen.
[Finnish]
A copy of the signed Declaration of Conformity can be downloaded from the Product Support web page for
the 3Com Wireless 11n ADSL Firewall Router at http://www.3Com.com.
Also available at http://support.3com.com/doc/WL-603_EU_DOC.pdf.
EU - RESTRICTIONS FOR USE
IN THE 2.4GHZ BAND
This device may be operated indoors or outdoors in all countries of the European Community using the
2.4GHz band: Channels 1 – 13, except where noted below.
In Italy the end-user must apply for a license from the national spectrum authority to operate this device
outdoors.
In France outdoor operation is only permitted using the 2.4 – 2.454 GHz band: Channels 1 – 7.
BRAZIL RF COMPLIANCE
SAFETY STATEMENT
Este equipamento opera em caráter secundário, isto é, não tem direito a proteção contra interferência
prejudicial, mesmo de estações do mesmo tipo, e não causar interferência a sistema operando em caráter
primário.
This product is intended to be supplied by a UL listed power unit marked “Class 2” or ‘LPS” rated 15V dc
minimum 0.8A.
PANASONIC LICENSED PATENT
NUMBER
Only for xDSL Product
Licensed under one or more of U.S. Patent Nos.6694470; 6735245; 6751254; 6765957; 6768772; 6873652;
6901547; 6917647; 6934326; 6950459; 6952442; 6987802; 6999506; 7012954; 7051258; 7058123; and
7272173
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178
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INDEX
DNS Screen 55
DSL mode 29
Dynamic Domain Server (DDNS) Screen 70
Dynamic IP Address 34
Dynamic/Fixed IP for Bridge Mode Screen 35, 55
DYNDNS 70
Numbers
128-bit WEP 46
128-bit WEP Screen 46
1483 Bridge Mode 55
64-bit WEP Screen 47
A
E
Access Control Screen 62
Add PC Screen 63
Add Schedule Rule Screen 65
Addresses
Editing DHCP Clients List Screen 42
Encryption Screen 44
Encryption, disabling 45
IP 85
Admin Password Screen 75
ADSL Status Screen 77
Advanced Screen 68
Automatic Addressing 87
F
Firewall Screen 59
Forgotten Password 80
H
B
Hostname
Backup/Restore Settings Screen 74
configuring 56
Hostname and MAC Address Screen 56
I
C
Internet
Cable Specifications 91
Channels 111
Internet Protocol (TCP/IP) Properties Screen 24
IP Address 41, 85
Configuration Summary Screen 37
Conventions
IPSEC 68
notice icons, About This Guide 8
L
LAN Settings Screen 41
LED 14
D
DDNS 70
LEDs 14
Local Area Properties Screen 24
Logs Screen 77
DHCP 87
DHCP Clients List 42
DHCP server 25, 42
disabling 26
DMZ Screen 67
DNS 24
M
MAC Address 56
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180
INDEX
configuring 56
mode 30
Subnet Mask 85
T
TCP/IP 23, 25, 85
Technical
N
NAT (Network Address Translation) 68
specifications 89
standards 89
Time and Time Zone screen 76
TZO.com 70
Network
addresses 85
Networking
wireless 81
NIC
U
Universal Plug and Play 68
Upgrade Screen 74
URL Blocking Screen 64
wireless 14
P
Password 27, 75
Poison Reverse 58
PPPoA 31
V
Virtual Servers Screen 61
VPI/VCI 30, 32, 33, 34, 36
PPPoA Settings Screen 52
PPPoE 26, 30, 31
PPPoE Screen 30
PPPoE Settings Screen 51
W
WAN Ping Blocking 68
WDS 49
Web Browser Location Field 27
Web Proxy 26
WiFi Protected Access 45, 48
Wireless
networking 81
NIC 14
Wireless Configuration Screen 43
Wireless Settings Screen 31, 32, 33, 35, 36, 43
Wireless WDS Settings Screen 49
WPA (with RADIUS Server) Screen 48
WPA-PSK (no server) Screen 45
R
Remote Admin 68
Reset to Factory Default Screen 73
Reset to Factory Defaults 80
Restart Router Screen 73
RFC 1483 Bridged Mode 32, 53
RIP (Routing Information Protocol) 57
RIP Parameter Screen 58
Router Login Screen 28
Routing Mode Screen 34
Routing Table Screen 59
S
Schedule Rule Screen 65
Setup Wizard 27
SNMP Community Screen 71
SNMP Trap Screen 72
Special Applications Screen 60
Specifications
technical 89
SSID 31, 32, 33, 35, 36, 43
Static Addressing 87
Static Route Parameters Screen 57
Status Screen 28, 40
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