Linksys Network Router RT042 User Manual

®
A Division of Cisco Systems, Inc.  
Broadband Router  
with QoS  
User Guide  
WIRED  
Model No.  
RT042  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Table of Contents  
Chapter 1: Introduction  
1
1
Welcome  
What’s in this Guide?  
2
Chapter 2: Networking Basics  
An Introduction to LANs  
4
4
4
The Use of IP Addresses  
Chapter 3: Getting to Know the Broadband Router  
The Front Panel  
6
6
7
The Back and Side Panels  
Chapter 4: Connecting the Broadband Router  
Overview  
8
8
9
Connection Instructions  
Chapter 5: Setting Up and Configuring the Broadband Router  
Overview  
10  
10  
12  
12  
13  
15  
16  
16  
17  
17  
18  
18  
19  
20  
20  
21  
22  
22  
24  
24  
How to Access the Web-based Utility  
System Summary Tab  
Basic Setup Tab - Network  
Basic Setup Tab - Password  
Basic Setup Tab - Time  
Basic Setup Tab - MAC Clone  
Parental Control Tab - On-Line Scheduler  
Parental Control Tab - Website Hit Rate  
Parental Control Tab - Application Usage  
Parental Control Tab - Performance Optimization  
Parental Control Tab - Block List  
Advanced Setup Tab - DMZ Host  
Advanced Setup Tab - Forwarding  
Advanced Setup Tab - UPnP  
Advanced Setup Tab - DDNS  
Advanced Setup Tab - Advanced Routing  
Advanced Setup Tab - VPN Pass Through  
Advanced Setup Tab - Remote Management  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Advanced Setup Tab - System Management  
Log Tab - System Log  
Log Tab - System Statistics  
25  
27  
28  
29  
29  
39  
43  
Appendix A: Troubleshooting  
Common Problems and Solutions  
Frequently Asked Questions  
Appendix B: Upgrading Firmware  
Appendix C: Finding the MAC Address and IP Address for  
Your Ethernet Adapter  
Windows 98 or Me Instructions  
Windows 2000 or XP Instructions  
For the Router’s Web-based Utility  
Appendix D: Using the RT042 Utility  
Starting the Utility  
Router Information  
Usage Configuration Screens  
Appendix E: The Setup Wizard  
44  
44  
44  
45  
46  
46  
47  
47  
51  
Appendix F: Windows Help  
Appendix G: Glossary  
Appendix H: Specifications  
Appendix I: Warranty Information  
Appendix J: Regulatory Information  
Appendix K: Contact Information  
54  
55  
59  
60  
61  
62  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
List of Figures  
Figure 3-1: Front Panel  
6
7
Figure 3-2: Back Panel  
Figure 4-1: Example of a Typical Network  
Figure 4-2: Connect a PC  
8
9
Figure 4-3: Connect the Internet  
9
Figure 4-4: Connect the Power  
9
Figure 5-1: Entering the Router’s IP Address  
Figure 5-2: Accessing the Web-Based Utility  
Figure 5-3: The Site Map Button  
Figure 5-4: Site Map  
Figure 5-5: System Summary Tab  
Figure 5-6: Basic Setup Tab - Network  
Figure 5-7: Obtain an IP Automatically  
Figure 5-8: Static IP  
Figure 5-9: PPPoE  
Figure 5-10: PPTP  
Figure 5-11: Basic Setup Tab - Password  
Figure 5-12: Basic Setup Tab - Time  
Figure 5-13: Basic Setup Tab - MAC Clone  
Figure 5-14: Parental Control Tab - On-Line Scheduler  
Figure 5-15: Parental Control Tab - Website Hit Rate  
Figure 5-16: Parental Control Tab - Application Usage  
Figure 5-17: Parental Control Tab - Performance Optimization  
Figure 5-18: Parental Control Tab - Performance Optimization:  
Add/Edit New Applications  
12  
12  
12  
12  
13  
13  
14  
14  
14  
15  
15  
16  
16  
17  
17  
18  
18  
19  
19  
20  
20  
Figure 5-19: Parental Control Tab - Block List  
Figure 5-20: Advanced Setup Tab - DMZ Host  
Figure 5-21: Advanced Setup Tab - Forwarding  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Figure 5-22: Service Management  
21  
21  
22  
22  
24  
24  
25  
27  
28  
43  
44  
44  
45  
45  
46  
47  
48  
48  
49  
49  
50  
51  
51  
52  
52  
53  
53  
53  
Figure 5-23: Advanced Setup Tab - UPnP  
Figure 5-24: Advanced Setup Tab - DDNS  
Figure 5-25: Advanced Setup Tab - Advanced Routing  
Figure 5-26: Advanced Setup Tab - VPN Pass Through  
Figure 5-27: Advanced Setup Tab - Remote Management  
Figure 5-28: Advanced Setup Tab - System Management  
Figure 5-29: Log Tab - System Log  
Figure 5-30: Log Tab - System Statistics  
Figure B-1: Advanced Setup Tab - System Management  
Figure C-1: IP Configuration Screen  
Figure C-2: MAC Address/Adapter Address  
Figure C-3: MAC Address/Physical Address  
Figure C-4: MAC Address Clone  
Figure D-1: The Utility’s Main Screen  
Figure D-2: The Router Information Screen  
Figure D-3: The On-Line Scheduler  
Figure D-4: The Hit Rate Screen  
Figure D-5: The Real Time Usage Screen  
Figure D-6: The Hit Rate Screen  
Figure D-7: The Performance Optimization Screen  
Figure E-1: Basic Setup Tab - Network  
Figure E-2: Enter Host and Domain Names  
Figure E-3: Select WAN connection Type  
Figure E-4: Obtain an IP automatically  
Figure E-5: Static IP  
Figure E-6: PPPoE  
Figure E-7: Basic Setup Tab - Network  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Chapter 1: Introduction  
Welcome  
broadband: an always-on,  
fast Internet connection.  
network: a series of computers or devices  
connected for the purpose of data sharing,  
storage, and/or transmission between users.  
Thank you for choosing the Broadband Router. The Linksys Broadband Router with QoS is a kind of "splitter" for  
your Internet connection. Just connect your DSL or Cable Modem to the Router, and all the computers in your  
home or office can share the Internet at the same time. Use the built-in 4-port switch to attach four local PCs  
directly, or daisy-chain out to more hubs and switches as your network grows. It has Auto MDI/MDI-X cross-over  
detection so you don't have to worry about the cable type.  
bandwidth: the transmission capacity  
of a given device or network.  
DHCP (Dynamic Host Configuration Protocol) : a networking  
protocol that allows administrators to assign temporary IP  
addresses to network computers by "leasing" an IP  
address to a user for a limited amount of time.  
The Router's QoS (Quality of Service) feature lets you define the amount of the available bandwidth for each of  
the devices on your network. This means that you can prioritize time-sensitive data like Voice Over IP phone calls  
or streaming media ahead of less sensitive email and web surfing. The dual Internet ports let you optionally  
connect a second Internet line for additional bandwidth.  
browser: an application program that provides a way to  
look at and interact with all the information on the Internet.  
Of course, once your computers are connected to the Internet through the Router, they can communicate with  
each other too, sharing resources and files. All your computers can print on a shared printer connected  
anywhere in the home. And you can share all kinds of files between computers, like music, digital pictures, and  
other documents.  
Ethernet: a network protocol that specifies  
how data is placed on and retrieved from a  
common transmission medium.  
In addition to this, you can control access to the Internet through the Router’s Parental Control features. This  
allows you to set a schedule, see what websites and programs are being used, optimize performance, and block  
those sites you don’t wish to be accessed.  
firewall: a set of related programs located at a  
network gateway server that protects the resources  
of a network from users from other networks.  
This user guide will give you all the information you need to connect, set up, and configure your Router.  
router: a networking device that  
connects multiple networks together.  
Chapter 1: Introduction  
Welcome  
1
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
What’s in this Guide?  
This user guide covers the steps for setting up and using the Broadband Router.  
Chapter 1: Introduction  
This chapter describes the Router’s applications and this User Guide.  
Chapter 2: Networking Basics  
This chapter describes the basics of networking.  
Chapter 3: Getting to Know the Broadband Router  
This chapter describes the physical features of the Router.  
Chapter 4: Connecting the Broadband Router  
This chapter instructs you on how to connect the Router to your network.  
Chapter 5: Setting Up and Configuring the Router  
This chapter explains how to use the Web-Based Utility to set up the Router and configure its settings.  
firmware: the programming code that  
runs a networking device.  
Appendix A: Troubleshooting  
This appendix describes some problems and solutions, as well as frequently asked questions, regarding the  
Router’s installation and usage.  
MAC (Media Access Control) Address - The unique address  
that a manufacturer assigns to each networking device.  
Appendix B: Upgrading Firmware  
This appendix instructs you on how to upgrade the Router’s firmware if you should need to do so.  
adapter: a device that adds network  
functionality to your PC.  
Appendix C: Finding the MAC Address and IP Address for your Ethernet Adapter.  
This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use  
the Router’s MAC address cloning feature.  
IP (Internet Protocol): a protocol used  
to send data over a network.  
Appendix D: Using the RT042 Utility  
This appendix describes the Router Utility that comes on the Router’s CD.  
ip address: the address used to identify a  
computer or device on a network.  
Appendix E: The Setup Wizard  
This appendix describes the Setup Wizard included with the Web-based utility, for easy Internet set up.  
TCP (Transmission Control Protocol): a network  
protocol for transmitting data that requires  
acknowledgement from the recipient of data sent.  
Appendix F: Windows Help  
This appendix describes how you can use Windows Help for instructions about networking, such as installing  
the TCP/IP protocol.  
TCP/IP (Transmission Control Protocol/Internet  
Protocol): a set of instructions PCs use to  
communicate over a network.  
Appendix G: Glossary  
This appendix gives a brief glossary of terms frequently used in networking.  
Chapter 1: Introduction  
What’s in this Guide?  
2
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix H: Specifications  
This appendix provides the Router’s technical specifications.  
Appendix I: Warranty Information  
This appendix contains the Router’s warranty information.  
Appendix J: Regulatory Information  
This appendix supplies the regulatory information regarding the Router.  
Appendix K: Contact Information  
This appendix provides contact information for a variety of Linksys resources, including Technical Support.  
Chapter 1: Introduction  
What’s in this Guide?  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Chapter 2: Networking Basics  
An Introduction to LANs  
A Router is a network device that connects two networks together.  
LAN: the computers and networking products that  
make up your local network  
The Router connects your local area network (LAN), or the group of PCs in your home or office, to the Internet. The  
Router processes and regulates the data that travels between these two networks.  
NAT (Network Address Translation):  
NAT technology translates IP  
addresses of a local area network to a  
different IP address for the Internet.  
The Router’s Network Address Translation (NAT) technology protects your network of PCs so users on the Internet  
cannot “see” your PCs. This is how your LAN remains private. The Router protects your network by inspecting the  
first packet coming in through the Internet port before delivery to the final destination on one of the Ethernet  
ports. The Router inspects Internet port services like the web server, ftp server, or other Internet applications,  
and, if allowed, it will forward the packet to the appropriate PC on the LAN side.  
FTP (File Transfer Protocol): a protocol used  
to transfer files over a TCP/IP network.  
The Use of IP Addresses  
Packet: a unit of data sent over a network.  
IP stands for Internet Protocol. Every device in an IP-based network, including PCs, print servers, and routers,  
requires an IP address to identify its location, or address, on the network. This applies to both the Internet and  
LAN connections.  
server: any computer whose function in a  
network is to provide user access to files,  
printing, communications, and other services.  
There are two ways of assigning IP addresses to your network devices.  
A static IP address is a fixed IP address that you assign manually to a PC or other device on the network. Since a  
static IP address remains valid until you disable it, static IP addressing ensures that the device assigned it will  
always have that same IP address until you change it. Static IP addresses are commonly used with network  
devices such as server PCs or print servers.  
Static IP address: a fixed address  
assigned to a computer or device that  
is connected to a network.  
Dynamic IP address: a temporary IP  
address assigned by a DHCP server.  
If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have  
assigned a static IP address to your account. If so, you will need that static IP address when configuring the  
Router. You can get the information from your ISP.  
DSL (Digital Subscriber Line): an always-on  
broadband connection over traditional phone lines.  
A dynamic IP address is automatically assigned to a device on the network. These IP addresses are called  
dynamic because they are only temporarily assigned to the PC or other device. After a certain time period, they  
expire and may change. If a PC logs onto the network (or the Internet) and its dynamic IP address has expired, the  
DHCP server will assign it a new dynamic IP address.  
ISP (Internet Service Provider): a company that  
provides access to the Internet.  
Chapter 2: Networking Basics  
An Introduction to LANs  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
A DHCP server can either be a designated PC on the network or another network device, such as the Router. By  
default, the Router’s Internet Connection Type is Obtain an IP automatically (DHCP).  
The PC or network device obtaining an IP address is called the DHCP client. DHCP frees you from having to assign  
IP addresses manually every time a new user is added to your network.  
PPPoE (Point to Point Protocol over Ethernet): a type of  
broadband connection that provides authentication  
(username and password) in addition to data transport.  
For DSL users, many ISPs may require you to log on with a user name and password to gain access to the  
Internet. This is a dedicated, high-speed connection type called Point to Point Protocol over Ethernet (PPPoE).  
PPPoE is similar to a dial-up connection, but PPPoE does not dial a phone number when establishing a  
connection. It also will provide the Router with a dynamic IP address to establish a connection to the Internet.  
Chapter 2: Networking Basics  
The Use of IP Addresses  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Chapter 3: Getting to Know the Broadband Router  
The Front Panel  
The Router’s LEDs are located on the front panel.  
Figure 3-1: Front Panel  
LEDs  
Ethernet 1-4  
Green. The Ethernet LEDs serves two purposes. If an LED is continuously lit, the Router  
is connected to a device through the corresponding port (1, 2, 3, or 4). If an LED is  
flashing, the Router is actively sending or receiving data over that port.  
Internet1  
Internet2  
Diag  
Green. The Internet1 LED lights up when the Router is connected to your cable or DSL  
modem through the corresponding Internet port.  
port: the connection point on a computer or networking  
device used for plugging in cables or adapters.  
Green. The Internet2 LED lights up when the Router is connected to your cable or DSL  
modem through the second Internet port.  
Orange. The Diag LED lights up when the system is not ready. The LED goes off when  
the system is ready.  
System  
Green. The System LED lights up when the Router is powered on. If the LED is flashing,  
the Router is running a diagnostic test.  
Chapter 3: Getting to Know the Broadband Router  
The Front Panel  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
The Back and Side Panels  
The Router’s ports and Reset button are located on the back panel of the Router.  
Internet1  
Ethernet  
Figure 3-2: Back Panel  
Internet2  
Reset Button  
Reset Button The Reset button can be used in one of two ways:  
If the Router is having problems connecting to the Internet, press the Reset button for just a  
second with a paper clip or a pencil tip. This is similar to pressing the Reset button on your PC to  
reboot it.  
boot: to start a device and cause it to  
start executing instructions.  
If you are experiencing extreme problems with the Router and have tried all other  
troubleshooting measures, press and hold in the Reset button for 30 seconds. This will restore  
the factory defaults and clear all of the Router’s settings, such as port forwarding or a new  
password.  
Ports  
Ethernet 1-4 These four Ethernet ports connect to network devices, such as PCs, print servers, or additional  
switches.  
Internet1  
Internet2  
Power  
The Internet1 port connects to a cable or DSL modem.  
The Internet2 port acts as an additional Internet port and connects to a cable or DSL modem.  
The Power port is where you will connect the included AC power cable.  
Proceed to “Chapter 4: Connecting the Broadband Router.”  
Chapter 3: Getting to Know the Broadband Router  
The Back and Side Panels  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Chapter 4: Connecting the Broadband Router  
Overview  
To set up your network, you will need to do the following:  
Connect the Router to one of your PCs according to the instructions in this chapter.  
Set up and configure the Router with the setting(s) provided by your Internet Service Provider (ISP) according  
to “Chapter 5: Setting up and Configuring the Broadband Router.”  
The installation technician from your ISP should have left the setup information with you after installing your  
broadband connection. If not, you can call your ISP to request the information. Once you have the setup  
information for your specific type of Internet connection, then you can begin installation and setup of the Router.  
Notebook with  
Ethernet Adapter  
Broadband  
Router  
Cable or DSL  
Modem  
PC with Ethernet  
Adapter  
Figure 4-1: Example of a Typical Network  
Chapter 4: Connecting the Broadband Router  
Overview  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Connection Instructions  
1. Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, hubs,  
switches, and cable or DSL modem.  
2. Connect one end of an Ethernet network cable to one of the Ethernet ports on the back of the Router. Connect  
the other end to an Ethernet port on a network device, e.g., a PC, print server, hub, or switch.  
Figure 4-2: Connect a PC  
Repeat this step to connect more PCs or other network devices to the Router.  
3. Connect your cable or DSL modem’s Ethernet cable to one of the Router’s Internet ports. If using the Internet2  
port, connect a second cable to it, and the other end to the network device, e.g., modem or public server.  
4. Power on the cable or DSL modem and the other network device if using one.  
5. Connect the included AC power cable to the Router’s Power port, and then plug the power adapter into an  
electrical outlet.  
Figure 4-3: Connect the Internet  
The System LED on the front panel will light up as soon as the power adapter is connected properly.  
Proceed to “Chapter 5: Setting Up and Configuring the Broadband Router.”  
Figure 4-4: Connect the Power  
Chapter 4: Connecting the Broadband Router  
Connection Instructions  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Chapter 5: Setting Up and Configuring the Broadband  
Router  
Overview  
For your convenience, use the Router’s Web-based Utility to set it up and configure it. This chapter will explain all  
of the functions in this Utility.  
There are five main tabs in the Utility: System Summary, Basic Setup, Parental Control, Advanced Setup, and Log.  
Additional tabs will be available after you click one of the main tabs. The tabs, and each of its screens, are  
described below:  
System Summary Tab  
The System Summary Tab displays the router’s current status and settings. You can also configure the user and  
IP bandwidth. Clicking any underlined text will take you to any related pages in the utility.  
Basic Setup Tab  
Network. Use this screen to enter your Internet connection information and network settings.  
Password. You can change the Router’s password on this screen. For better network security, you should  
change the password from the Router’s default.  
Time. Change the time on this screen. Make sure you change it from the default setting, if necessary, to show  
the accurate time.  
MAC Clone. Some ISPs require that you register a MAC address. This feature “clones” your network adapter's  
MAC address onto the Router, and prevents you from having to call your ISP to change the registered MAC  
address to the Router's MAC address.  
Parental Control Tab  
On-Line Scheduler. This feature allows you to allow or deny Internet access, according to the schedule, to  
any of the users on your network.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Overview  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Website Hit Rate. This feature allows you to view the frequency at which each of your network’s users are  
viewing their ten most favorite websites. You can also block these sites, if you wish.  
Application Usage. This feature allows you to view which applications, according to user, are taking up the  
most bandwidth on your network and block those sites if you wish.  
Performance Optimization. This feature allows you to list the network applications most often used on your  
network, according to user, and set the priority at which it is run.  
Block List. This feature allows you to find out which websites or applications are blocked for each of your  
users, and unblock them if you wish.  
DMZ: removes the Router's firewall protection from  
one PC, allowing it to be "seen" from the Internet.  
Advanced Setup Tab  
DMZ Host. The DMZ (Demilitarized Zone) Host feature allows one local user to be exposed to the Internet, not  
protected by the Router’s firewall, to use a special-purpose service such as Internet gaming or video  
conferencing.  
gateway: device that interconnects networks with  
different, incompatible communications protocols.  
Forwarding. Port forwarding can be used to set up public services on your network. You may use this  
function to establish a Web server or FTP server via an IP Gateway.  
DDNS: allows the hosting of a website, FTP server,  
or e-mail server with a fixed domain name (e.g.,  
UPnP. UPnP forwarding can be used to set up public services on your network.  
DDNS. DDNS (Dynamic DNS) service allows you to assign a fixed domain name to a dynamic Internet IP  
domain: a specific name for a  
address. This allows you to host your own Web, FTP or other type of TCP/IP server in your LAN.  
network of computers.  
IPSec (Internet Protocol Security): a VPN protocol used  
to implement secure exchange of packets at the IP layer.  
Advanced Routing. The Router's dynamic routing feature can be used to automatically adjust to physical  
changes in the network's layout. The static routing feature allows multiple routers to operate on one network.  
PPTP (Point-to-Point Tunneling Protocol): a VPN  
protocol that allows the Point to Point Protocol (PPP) to  
be tunneled through an IP network. This protocol is  
also used as a type of broadband connection in Europe.  
VPN Pass Through. This tab allows you to enable or disable IPSec Pass Through, PPTP Pass Through, and  
L2TP Pass Through.  
Remote Management. This allows you to manage the Router through a remote location over the Internet.  
upgrade: to replace existing software  
or firmware with a newer version.  
System Management. This screen includes tools to help troubleshoot network problems, reset the Router to  
factory default settings, upgrade the Router’s firmware, and store and retrieve configuration files.  
Log Tab  
System Log. The System Log displays Syslog, E-mail and Log Settings.  
System Statistics. This tab displays the system statistics.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Overview  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
How to Access the Web-based Utility  
To access the Router’s Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the Router’s  
default IP address, 192.168.1.1, in the Address field. Then, press the Enter key.  
Figure 5-1: Entering the Router’s IP Address  
A screen will appear asking you for your User name and Password. Enter admin in the User name field and the  
Password field. Then, click the OK button.  
System Summary Tab  
The first screen that appears is System Summary Tab. This screen displays the router’s current status and  
settings. This information is read only. Clicking underlined text will take you to related setup pages. On the right  
side of the screen and all other screens in the Utility will be a link to the Site Map, which has links to all of the  
Utility’s tabs. Click the Site Map button to view the Site Map. Then, click on desired tab subject.  
Figure 5-2: Accessing the Web-Based Utility  
Figure 5-3: The Site Map Button  
System Information  
System Up Time: The length of time in Days, Hours, and Minutes that the Router is active and the current time  
are displayed.  
Internet IP Addresses: This shows the current IP Address for each Internet port. You can release and renew  
each of these addresses, depending upon your settings. Clicking the underlined text will take you to the Network  
screen on the Basic Settings tab.  
User Usage  
This is a graphic display of the users on your network, showing which Internet connection they are accessing and  
how much bandwidth they are consuming.  
Figure 5-4: Site Map  
Chapter 5: Setting Up and Configuring the Broadband Router  
How to Access the Web-based Utility  
12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
User Bandwidth  
This is a list of all users on your network, displaying how they’re connected and allowing you to set the amount of  
bandwidth they are allowed and to delete them as users on your network. The headings for this list are:  
User Name: Shows the name of this user on your network.  
IP: Shows the IP Address of this user’s PC.  
Interface: Shows the Internet port the user is accessing. You can also configure the user to go through the  
other Internet port by selecting the interface from the drop-down menu when dual Internet ports are used.  
Min.Rate (Kbit/Sec): Enter the minimum allowable bandwidth for this user. The default setting is 0.  
Max.Rate (Kbit/Sec): Enter the maximum allowable bandwidth for this user. The default setting is 512.  
Delete: Click the trashcan icon if you wish to delete this user from the user bandwidth or from Internet  
access.  
Figure 5-5: System Summary Tab  
ISP Bandwidth  
This section allows you to set the maximum upstream or downstream bandwidth per Internet port, maximizing  
your network’s performance. This information can be obtained from your ISP.  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
Basic Setup Tab - Network  
The Basic Setup tab contains all of the router’s basic setup functions.The first screen that appears, the Network  
screen, includes basic settings for your network. The router can be used in most network settings without  
changing any of the default values. Some users may need to enter additional information in order to connect to  
the Internet through an ISP (Internet Service Provider) or broadband (DSL, cable modem) carrier.  
If you need help to configuring the router, click the Setup Wizard button. A walk-through of the Wizard is  
provided in “Appendix E: The Setup Wizard”.  
Host Name & Domain Name: Enter a host and domain name for the Router. Some ISPs may require these names  
as identification, and these settings can be obtained from your ISP. In most cases, leaving these fields blank will  
work.  
Figure 5-6: Basic Setup Tab - Network  
Chapter 5: Setting Up and Configuring the Broadband Router  
Basic Setup Tab - Network  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
LAN Setting  
hardware: the physical aspect of  
computers, telecommunications, and  
other information technology devices.  
This shows the Router’s MAC Address, which is a 12-digit code assigned to each piece of hardware for  
identification. Also listed here are the Router’s IP Address and Subnet Mask. The default value is 192.168.1.1 for  
IP address and 255.255.255.0 for the Subnet Mask.  
subnet mask: an address code that  
determines the size of the network.  
Internet Connection Type  
Obtain an IP Automatically  
If your ISP automatically assigns an IP Address, select Obtain an IP automatically. Your ISP will assign these  
values. If you check the box for Use the Following DNS Server Addresses, enter a specific DNS Server IP.  
Multiple DNS IP Settings are common. In most cases, the first available DNS entry is used.  
Figure 5-7: Obtain an IP Automatically  
Static IP  
If you have to specify the Internet IP Address, Subnet Mask, Default Gateway Address, and DNS Server, select  
Static IP. You must obtain this information from your ISP.  
PPPoE (Point-to-Point Protocol over Ethernet) (most DSL users)  
You have to check with your ISP to make sure whether PPPoE should be enabled or not. If they do use PPPoE:  
1. Enter your User Name and Password.  
Figure 5-8: Static IP  
2. If you select Connect on Demand option, the PPPoE connection will be disconnected if it has been idle for a  
period longer than the Max Idle Time setting.  
3. If you select Keep Alive option, the Router will keep the connection alive by sending out a few data packets  
at the Redial Period, so your Internet service thinks that the connection is still active.  
Figure 5-9: PPPoE  
Chapter 5: Setting Up and Configuring the Broadband Router  
Basic Setup Tab - Network  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
PPTP (Point-to-Point Tunneling Protocol)  
1. Enter the Specify IP Address, Subnet Mask and Default Gateway Address that is provided by your ISP.  
2. Enter your User Name and Password.  
3. If you select Connect on Demand option, the connection will be disconnected if it has been idle for a period  
longer than the Max Idle Time setting.  
4. If you select Keep Alive option, the Router will keep the connection alive by sending out a few data packets  
at the Redial Period, so your Internet service thinks that the connection is still active.  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
Figure 5-10: PPTP  
Basic Setup Tab - Password  
The Router's default User Name and password is admin. For greater network security, you should change the  
Router's password from this default to one of your own. If you leave the password field blank, all users on your  
network will be able to access the Router simply by entering admin into the password field.  
Old Password: Enter the old password. The default Password is admin when you first power up the Router.  
NOTE: The password cannot be recovered if it is lost or forgotten. If the password is  
lost or forgotten, you have to reset the Router to its factory default settings.  
New Password: Enter a new password for the Router. Your password must be less than 15 characters long and  
it can’t contain any spaces.  
Figure 5-11: Basic Setup Tab - Password  
Confirm New Password: Re-enter the password for confirmation.  
Click the Save Settings button to save the Password settings or click the Cancel Changes button to undo the  
changes.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Basic Setup Tab - Password  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Basic Setup Tab - Time  
Time  
The Router uses the time settings to time stamp log events, to automatically update the Content Filter List, and  
for other internal purposes.  
Set the local time using Network Time Protocol (NTP) automatically or manually.  
Automatic: Select the Time Zone and enter the Daylight Saving and NTP Server. The default Time Zone is Pacific  
Time.  
Figure 5-12: Basic Setup Tab - Time  
Manual: Enter the Hours, Minutes, Seconds, Month, Day and Year.  
Click the Save Settings button to save the Time settings or click the Cancel Changes button to undo the  
changes.  
Basic Setup Tab - MAC Clone  
Some ISPs require that you register a MAC address. This feature “clones” your network adapter's MAC address  
onto the Router, and prevents you from having to call your ISP to change the registered MAC address to the  
Router's MAC address. The Router's MAC address is a 12-digit code assigned to a unique piece of hardware for  
identification.  
Enter the MAC Address in the User Defined MAC Address field for Internet ports 1 or 2, or click the Clone button  
to add the MAC Address from the PC viewing the Web-based Utility.  
Click Save Settings to save the MAC Cloning settings or click the Cancel Changes button to undo your changes.  
Figure 5-13: Basic Setup Tab - MAC Clone  
Chapter 5: Setting Up and Configuring the Broadband Router  
Basic Setup Tab - Time  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Parental Control Tab - On-Line Scheduler  
The Parental Control tab allows you to control and optimize your user’s access to the Internet from your network.  
This control can also be exercised through the Utility provided on the CD included with the Router.  
The first screen to appear, On-Line Scheduler, allows you to allow or deny Internet access, according to the  
schedule, to any of the users on your network.  
Select User: From this drop-down menu, select the user whose access you wish to schedule.  
From the schedule below, you can restrict or allow access to the Internet. Each day in the schedule is broken into  
eight blocks of time. Each block is divided into three hours. Click on any of the boxed hours to make the box red  
or green. A red box means that access is restricted. A green box means the user is allowed access.  
You can also restrict or allow entire days, or daytime or evening periods, in the lower portion of the screen.  
Figure 5-14: Parental Control Tab - On-Line Scheduler  
Click Save Settings to save the Scheduler settings or click the Cancel Changes button to undo your changes.  
Parental Control Tab - Website Hit Rate  
From this screen, you can view the frequency at which each of your network’s users are viewing their ten most  
favorite websites. You can also block these sites, if you wish.  
Select User: From this drop-down menu, select the user whose top websites you wish to view.  
Select Date: From this drop-down menu, select the date when the websites were viewed.  
Refresh Data: Clicking this button will update the information displayed on the screen.  
Website information is displayed in ranking order, from most viewed to least viewed, with the amount of “hits”  
displayed. Each website is displayed as a link, so you can click the name to bring up the site. Clicking the Block  
box will restrict that user from viewing that website.  
Click Save Settings to save the settings or click the Cancel Changes button to undo your changes.  
Figure 5-15: Parental Control Tab - Website Hit Rate  
Chapter 5: Setting Up and Configuring the Broadband Router  
Parental Control Tab - On-Line Scheduler  
17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Parental Control Tab - Application Usage  
From this screen, you can view which applications are taking up the most bandwidth on your network, according  
to user, and block those sites if you wish.  
Select User: From this drop-down menu, select the user whose application usage you wish to view.  
Select Date: From this drop-down menu, select the date when the applications were used.  
Refresh Data: Clicking this button will update the information displayed on the screen.  
Application information is displayed in ranking order, from most viewed to least viewed, with the amount of  
usage displayed for each application. For each application, there is also a column showing the protocol and port  
number used. Clicking the Block box will restrict that user from utilizing that application.  
Figure 5-16: Parental Control Tab - Application Usage  
Click Save Settings to save the settings or click the Cancel Changes button to undo your changes.  
Parental Control Tab - Performance Optimization  
From this screen, you can list the network applications most often used on your network, according to user, and  
set the priority at which it is run. If an application is not listed, you can add it or you can edit those listed by  
clicking the Add/Edit New Applications button.  
Select User: From this drop-down menu, select the user whose application performance you wish to optimize.  
All applications are set at a Good level of optimization by default. To change this setting, click the Enable box  
next to the application. Otherwise, the performance optimization settings will be “greyed-out”. Then, click the  
radio button for Normal, Good, or Better optimization. Selecting Normal will decrease performance. Selecting  
Better will increase performance.  
Click Save Settings to save the performance settings or click the Cancel Changes button to undo your changes.  
Adding/Editing New Applications  
To add or edit applications, click the Add/Edit New Applications button from the Performance Optimization  
screen on the Parental Control tab. Enter the Application Name when adding new applications or select the  
application you wish to edit from the list displayed.  
Figure 5-17: Parental Control Tab -  
Performance Optimization  
Then, you can edit the protocol from the Protocol drop-down menu and edit the port range from the Port Range  
boxes. You can also change the application speed in the Kbit/Sec box.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Parental Control Tab - Application Usage  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Click the Add to List button to add the new or newly edited selection to your list of applications. To delete an  
application, select from the list and click the Delete Selected Application button.  
Click Save Settings to save the settings or click the Cancel Changes button to undo your changes. If you wish to  
leave this screen without saving your changes, click the Exit button.  
Parental Control Tab - Block List  
Figure 5-18: Parental Control Tab - Performance  
Optimization: Add/Edit New Applications  
From this screen, you can find out which websites or applications are blocked for each of your users, and unblock  
them if you wish.  
Select User: From this drop-down menu, select the user whose web or application usage you wish to view.  
Refresh Data: Clicking this button will update the information displayed on the screen.  
Change the information displayed on this screen by clicking the Web Site Block List for viewing blocked web  
sites or the Application Block List for viewing blocked applications. The web sites and/or applications are then  
listed. An option for Un-Blocking is provided and is used by clicking the Un-Block button.  
Click Save Settings to save the settings or click the Cancel Changes button to undo your changes.  
Figure 5-19: Parental Control Tab - Block List  
Chapter 5: Setting Up and Configuring the Broadband Router  
Parental Control Tab - Block List  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Advanced Setup Tab - DMZ Host  
The DMZ (Demilitarized Zone) Host feature allows one local user to be exposed to the Internet, not protected by  
the Router’s firewall, to use a special-purpose service such as Internet gaming or video conferencing.  
Check the Enable DMZ Host box to use this feature. Then, enter the DMZ Private IP Address, which is the IP  
Address of the PC using this feature. The Default value zero (0) will deactivate the DMZ Host.  
Click the Save Settings button to save the DMZ Host setting or click the Cancel Changes button to undo the  
changes.  
Advanced Setup Tab - Forwarding  
Figure 5-20: Advanced Setup Tab - DMZ Host  
Port forwarding can be used to set up public services on your network. When users from the Internet make  
certain requests of your network, the Router can forward those requests to computers equipped to handle them.  
If, for example, you set port number 80 (HTTP) to be forwarded to IP Address 192.168.1.2, then all HTTP requests  
from outside users will be forwarded to 192.168.1.2.  
HTTP (HyperText Transport Protocol): the communications  
protocol used to connect to servers on the Internet.  
You may use this function to establish a Web server or FTP server via an IP Gateway. Be sure that you enter a valid  
IP Address. (You may need to establish a static IP address in order to properly run an Internet server.) For added  
security, Internet users will be able to communicate with the server, but they will not actually be connected. The  
packets will simply be forwarded through the Router.  
Port Range Forwarding  
1. Select the Service from the pull-down menu.  
2. If the Service you need is not listed in the menu, please click the Service Management button to add the  
new Service Name. On the screen that opens, enter the Service Name, Protocol and Port Range. Click the  
Add to List button. Then, click the Save Setting button. Click the Exit button. The screen will close and you  
will be returned to the Forwarding screen.  
3. Enter the IP Address of the server that you want the Internet users to access. Then enable the entry by  
clicking the box below Enable.  
4. Click the Add to List button, and configure as many entries as you would like. Click the Save Settings button  
to activate the settings you’ve changed. You can also click Delete selected application, to delete those  
settings you don’t wish to use.  
Figure 5-21: Advanced Setup Tab - Forwarding  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - DMZ Host  
20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Port Triggering  
Some Internet applications or games use alternate ports to communicate between server and LAN host. When  
you want to use those applications, enter the triggering (outgoing) port and alternate incoming port in this table.  
The Router will forward the incoming packets to the LAN host.  
1. Enter the Application Name, Range of trigger port numbers, and the Incoming Port Range.  
2. Click the Add to List button to add Port Triggering or Delete selected application to delete applications.  
Click the Show Tables button to display the services you have assigned for Port Forwarding or Port Triggering.  
Click the Save Settings button to save the settings, click the Cancel Changes button to undo your changes, click  
the Show Tables to see the details.  
Figure 5-22: Service Management  
Advanced Setup Tab - UPnP  
UPnP forwarding can be used to set up public services on your network. Windows XP can modify those entries  
via UPnP when UPnP function is enabled by selecting Yes.  
1. Select the Service from the pull-down menu.  
2. Enter the Name or IP Address of the server that you want the Internet users to access. Then enable the entry  
by clicking the box below Enable.  
3. If the Service you need is not listed in menu, please click the Service Management button. A new screen  
will open and, from there, add the new Service Name, and Protocol as well as External and Internal Ports.  
Click the Add to List button. Then, click the Save Setting button. Click the Exit button and you will be  
returned to the UPnP screen.  
4. Click the Add to List button, and configure as many entries as you would like. Click the Save Settings button  
to activate the settings you’ve changed. You can also click Delete selected application, to delete those  
settings you don’t wish to use.  
Figure 5-23: Advanced Setup Tab - UPnP  
Click the Show Tables button to display the services you have assigned for Port Forwarding or Port Triggering.  
Click the Save Settings button to save the settings, click the Cancel Changes button to undo your changes, click  
the Show Tables to see the details.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - UPnP  
21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Advanced Setup Tab - DDNS  
DDNS (Dynamic DNS) service allows you to assign a fixed domain name to a dynamic Internet IP address. This  
allows you to host your own Web, FTP or other type of TCP/IP server in your LAN over either of the Internet ports.  
Before configuring DDNS, you need to visit www.dyndns.org and register a domain name. (The DDNS service is  
provided by DynDNS.org).  
DDNS Service: The DDNS feature is disabled by default. To enable this feature, select DynDNS.org from the  
pull-down menu, and enter the User name, Password, and Host Name of the account you set up with  
DynDNS.org.  
Internet IP Address: The current Internet IP Address of the Internet port being utilized is displayed here.  
Because it is dynamic, this will occasionally change.  
Status: The status of the DDNS function and Internet connection is displayed.  
Figure 5-24: Advanced Setup Tab - DDNS  
Click the Save Settings button to save the DDNS settings or click the Cancel Changes button to undo your  
changes.  
Advanced Setup Tab - Advanced Routing  
Dynamic Routing  
The Router's dynamic routing feature can be used to automatically adjust to physical changes in the network's  
layout. The Router uses the dynamic RIP protocol. It determines the route that the network packets take based on  
the fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts  
routing information to other routers on the network.  
Working Mode: Select NAT mode if this Router is hosting your network’s connection to the Internet. Select  
Router mode if this Router exists on a network with other routers, including a separate network gateway that  
handles the Internet connection. In Router Mode, any computer connected to the Router will not be able to  
connect to the Internet unless you have another router function as the gateway.  
RIP (Routing Information Protocol): The Router, using the RIP protocol, calculates the most efficient route for the  
network’s data packets to travel between the source and the destination, based upon the shortest paths.  
Figure 5-25: Advanced Setup Tab - Advanced Routing  
Receive RIP versions: Choose a protocol for receiving data from the network. (None, RIPv1, RIPv2, Both RIPv1  
and v2).  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - DDNS  
22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Transmit RIP versions: Choose a protocol for transmitting data on the network. (None, RIPv1, RIPv2-Broadcast,  
RIPv2-Multicast)  
static routing: forwarding data  
in a network via a fixed path.  
Static Routing  
You will need to configure Static Routing if there are multiple routers installed on your network. The static routing  
function determines the path that data follows over your network before and after it passes through this Router.  
You can use static routing to allow different IP domain users to access the Internet.  
NOTE: Static Routing is an advanced feature.  
Please proceed with caution.  
In many cases, it is better to use dynamic routing (see above), as that allows the Router to automatically adjust to  
physical changes in the network's layout. In order to use static routing, the Router's DHCP settings must be  
disabled.  
To set up static routing, add routing entries in the Router's table that tell the device where to send all incoming  
packets. All of your network routers should direct the default route entry to this Router.  
Enter the following data to create a static route entry:  
1. Destination IP: Enter the network address of the remote LAN segment. For a standard Class C IP domain, the  
network address is the first three fields of the Destination LAN IP, while the last field should be zero.  
2. Subnet Mask: Enter the Subnet Mask used on the destination LAN IP domain. For Class C IP domains, the  
Subnet Mask is 255.255.255.0.  
default gateway: a device that forwards  
Internet traffic from your local area network.  
3. Default Gateway: If this Router is used to connect your network to the Internet, then your gateway IP is the  
Router's IP Address. If you have another router handling your network's Internet connection, enter the IP  
Address of that router instead.  
node: a network junction or connection  
point, typically a computer or work station.  
4. Hop Count (max. 15): This value gives the number of nodes that a data packet passes through before  
reaching its destination. A node is any device on the network, such as switches, PCs, etc.  
5. Interface (LAN, Internet1, Internet2): Select whether your network is on the LAN or one of the Internet ports.  
If you’re connecting to a sub-network, select LAN. If you’re connecting to another network through one of the  
Internet ports, select Internet1 or Internet2.  
Click Add to list to add a static route entry or click Delete Selected IP to delete the static route entry.  
Click the Save Settings button to save the Routing settings, click the Cancel Changes button to undo your  
changes or click the Show Routing Table button to view the current routing table.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - Advanced Routing  
23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Advanced Setup Tab - VPN Pass Through  
The VPN Pass Through screen allows you to enable or disable IPSec Pass Through, PPTP Pass Through, and L2TP  
Pass Through.  
IPSec Pass Through: Internet Protocol Security (IPSec) is a suite of protocols used to implement secure  
exchange of packets at the IP layer. IPSec Pass Through is enabled by default to allow IPSec tunnels to pass  
through the Router.  
PPTP Pass Through: Point to Point Tunneling Protocol (PPTP) Pass Through is the method used to enable VPN  
sessions. PPTP Pass Through is enabled by default.  
L2TP Pass Through: Layer 2 Tunneling Protocol (L2TP) Pass Through is the method used to enable VPN sessions.  
Figure 5-26: Advanced Setup Tab - VPN Pass Through  
PPTP Pass Through is enabled by default.  
VPN (Virtual Private Network): a security  
measure to protect data as it leaves one  
network and goes to another over the Internet.  
Click the Save Settings button when you finish the VPN Pass Through settings, or click the Cancel Changes  
button to undo the changes.  
Advanced Setup Tab - Remote Management  
If you want to manage this Router from a remote location over the Internet, click the Enable button. You can  
enter any port number from 0 to 65, 535 for remote management. You can also set up remote management for a  
different number.  
Click the Save Settings button to save your settings, or click the Cancel Changes button to undo the changes.  
Figure 5-27: Advanced Setup Tab - Remote Management  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - VPN Pass Through  
24  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Advanced Setup Tab - System Management  
The System Management screen includes several tools to help troubleshoot network problems, such as looking  
up DNS names, ping tests, resetting the Router to factory default settings, upgrading the Router’s firmware, and  
storing and retrieving configuration files.  
Diagnostics  
DNS Name Lookup  
The Internet has a service called the Domain Name Service (DNS), which allows users to enter an easily  
resources. The Router has a DNS lookup tool that will return the numerical TCP/IP address of a host name.  
Enter the host name to look up in the Look up the name field and click the Go button. Do not add the prefix http://,  
otherwise the result will be Address Resolving Failed. The Router will then query the DNS server and display the  
result in the Diagnostics section of the screen.  
NOTE: The IP address of the DNS server must be entered in the Network  
Settings page for the DNS Name Lookup feature to function.  
Ping  
Figure 5-28: Advanced Setup Tab - System Management  
The Ping test bounces a packet off an IP Address across the Internet, which returns to the sender. This test shows  
if the Router is able to contact a remote host. If users on the LAN are having problems accessing services on the  
Internet, try pinging the DNS server, or another IP Address at the ISP’s location. If this test is successful, try  
pinging addresses outside the ISP. This will show if the problem lies with the ISP’s connection.  
DNS (Domain Name Server): the IP address of your ISP's server,  
which translates the names of websites into IP addresses.  
ping: an Internet utility used to determine  
whether a particular IP address is online.  
Enter the IP address you wish to pinged and click the Go button. The test will take a few seconds to complete.  
Once completed, a message showing the results will be displayed in the Diagnostics section of the screen. The  
results include Packets transmitted / received / loss and Round Trip Time (Minimum, Maximum, and Average).  
NOTE: Ping tests require an IP address. The Router’s DNS Name  
Lookup tool may be used to find the IP address of a host.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - System Management  
25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Factory Default  
The Factory Default feature can be used to clear all of your configuration information and restore the Router to its  
factory default settings. Only use this feature if you wish to discard all other configuration preferences.  
Click the Return to Factory Default Setting button if you want to restore the Router to the factory default  
settings. After clicking the button, another screen will appear, confirming that you’d like to restore the factory  
default settings. Click OK to reboot the Router.  
Firmware Upgrade  
Users can use the following function to upgrade the Router’s firmware to the newest version. If you have already  
downloaded the firmware into your computer, then click the Browse button to look for the file. Then, click the  
Firmware Upgrade Right Now button.  
Firmware Download  
download: to receive a file  
transmitted over a network.  
Users can click the Firmware Download from Linksys Web Site button to link to the downloads on the Support  
page of the Linksys website. Select the Router from the pull-down menu and choose the firmware from the  
options. After downloading the firmware, follow the Firmware Upgrade instructions above.  
Import Configuration File  
Before importing a configuration file, you will need to specify where it is located. Click the Browse button, and  
select a file that you have previously saved using the Export button in the window that opens. After you select the  
file, click the Import button. This process may take up to a minute. You will then need to restart the Router in  
order for the changes to take effect.  
Export Configuration File  
To export a configuration file, click the Export button. You will be asked where you would like to store the file.  
This file will be called “RV042.exp” by default, but you may rename it if you wish. This process may take up to a  
minute.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Advanced Setup Tab - System Management  
26  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Log Tab - System Log  
The System Log screen contains three functions: Syslog, E-mail and Log Setting.  
Syslog  
The System Log (of Syslog) function logs network activity with the use of a separate Syslog server. You need a  
Syslog server for this feature to work.  
Enable Syslog: Check this box to enable logging.  
Syslog Server: In addition to the standard event log, the Router can send a detailed log to an external Syslog  
server. Syslog is an industry-standard protocol used to capture information about network activity. The Router’s  
Syslog captures all log activity and includes every connection source and destination IP address, IP service, and  
number of bytes transferred. Enter the Syslog server name or IP address in the Syslog Server field. Restart the  
Router for logging to take effect.  
E-mail  
Figure 5-29: Log Tab - System Log  
Enable E-Mail Alert: Check this box to enable E-Mail Alert, informing you of network activity.  
byte: aunit of data that is  
usually eight bits long  
Mail Server: To have a log or alert information e-mailed to you, enter the name or IP address of your SMTP server  
here. Your Internet Service Provider can provide you with this information.  
SMTP (Simple Mail Transfer Protocol): the  
standard e-mail protocol on the Internet.  
Send E-mail To: This is the E-mail address where your log files will be sent. Leave this field blank if you do not  
want to receive copies of your log information.  
Log Queue Length: The default length is 50 entries. The Router will e-mail the log when the number of log  
entries exceeds the queue.  
Log Time Threshold: The default time is 10 minutes. In this case, the Router will e-mail the log every 10  
minutes.  
The Router will e-mail the log when it meets either the Log Queue Length or Log Time Threshold settings.  
E-mail Log Now: Click the E-mail Log Now button to immediately send the log to the address in the Send E-mail  
to field.  
Chapter 5: Setting Up and Configuring the Broadband Router  
Log Tab - System Log  
27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Log Setting  
Alert Log  
Check the appropriate box when you want receive alert logs for any of the following events: Syn Flooding, IP  
Spoofing, Win Nuke, Ping of Death and Unauthorized Login Attempt.  
General Log  
Check the appropriate box when you want to receive alert logs for any of the following events: System Error  
Messages, Deny Policies, Allow Policies, Configuration Changes and Authorized Login.  
View System Log: Click this button to view ALL logs, System Log, Access Log, Firewall Log, or VPN Log.  
Outgoing Log Table: Click this button to view the outgoing packet information.  
Incoming Log Table: Click this button to view the incoming packet information.  
Clear Log Now: This button will clear out your log without e-mailing it. Only use this button if you don't mind  
losing your log information.  
Click the Save Settings button to save your Log settings, or click the Cancel Changes button to undo the  
changes.  
Log Tab - System Statistics  
This tab displays the system statistics including the Device Name, Status, IP Address, MAC Address, Subnet  
Mask, Default Gateway, DNS, Received Packets, Sent Packets, Total Packets, Received Bytes, Sent Bytes, Total  
Bytes, Error Packets Received and Dropped Packets Received for the Ethernet ports as well as both of the  
Internet ports.  
Click the Refresh button to update these statistics.  
Figure 5-30: Log Tab - System Statistics  
Chapter 5: Setting Up and Configuring the Broadband Router  
Log Tab - System Statistics  
28  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix A: Troubleshooting  
This appendix provides solutions to problems that may occur during the installation and operation of the Router.  
Read the descriptions below to help solve your problems. If you can't find an answer here, check the Linksys  
website at www.linksys.com.  
Common Problems and Solutions  
1. I need to set a static IP address on a PC.  
The Router, by default, assigns an IP address range of 192.168.1.100 to 192.168.1.149 using the DHCP server  
on the Router. To set a static IP address, you can only use the ranges 192.168.1.2 to 192.168.1.99 and  
192.168.1.150 to 192.168.1.254. Each PC or network device that uses TCP/IP must have a unique address to  
identify itself in a network. If the IP address is not unique to a network, Windows will generate an IP conflict  
error message. You can assign a static IP address to a PC by performing the following steps:  
For Windows 98 and Millennium:  
A. Click Start, Setting, and Control Panel. Double-click Network.  
B. In The following network components are installed box, select the TCP/IP-> associated with your  
Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no  
association to an Ethernet adapter. Highlight it and click the Properties button.  
C. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a  
unique IP address that is not used by any other computer on the network connected to the Router. You can  
only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254.  
Make sure that each IP address is unique for each PC or network device.  
D. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP  
address of the Router. Click the Add button to accept the entry.  
E. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names  
(e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not  
provided the DNS IP address, contact your ISP to get that information or go to its website for the  
information.  
F. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network  
window.  
G. Restart the computer when asked.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
For Windows 2000:  
A. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.  
B. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and  
select the Properties option.  
C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and  
click the Properties button. Select Use the following IP address option.  
D. Enter a unique IP address that is not used by any other computer on the network connected to the Router.  
You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to  
192.168.1.254.  
E. Enter the Subnet Mask, 255.255.255.0.  
F. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).  
G. Toward the bottom of the window, select Use the following DNS server addresses, and enter the  
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its  
website to find the information.  
H. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
I. Restart the computer if asked.  
For Windows XP:  
The following instructions assume you are running Windows XP with the default interface. If you are using the  
Classic interface (where the icons and menus look like previous Windows versions), please follow the  
instructions for Windows 2000.  
A. Click Start and Control Panel.  
B. Click the Network and Internet Connections icon and then the Network Connections icon.  
C. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and  
select the Properties option.  
D. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the  
Properties button.  
E. Enter a unique IP address that is not used by any other computer on the network connected to the Router.  
You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to  
192.168.1.254.  
F. Enter the Subnet Mask, 255.255.255.0.  
G. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).  
H. Toward the bottom of the window, select Use the following DNS server addresses, and enter the  
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its  
website to find the information.  
I. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local  
Area Connection Properties window.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
30  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
2. I want to test my Internet connection.  
A. Check your TCP/IP settings.  
For Windows 98 and Millennium:  
Refer to “Appendix F: Windows Help” for details. Make sure Obtain IP address automatically is selected in  
the settings.  
For Windows 2000:  
1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.  
2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,  
and select the Properties option.  
3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP),  
and click the Properties button. Make sure that Obtain an IP address automatically and Obtain  
DNS server address automatically are selected.  
4. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
5. Restart the computer if asked.  
6. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
7. Restart the computer if asked.  
For Windows XP:  
The following instructions assume you are running Windows XP with the default interface. If you are using the  
Classic interface (where the icons and menus look like previous Windows versions), please follow the  
instructions for Windows 2000.  
1. Click Start and Control Panel.  
2. Click the Network and Internet Connections icon and then the Network Connections icon.  
3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,  
and select the Properties option.  
4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP), and click  
the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server  
address automatically are selected.  
B. Open a command prompt.  
For Windows 98 and Millennium, click Start and Run. In the Open field, type command. Press the  
Enter key or click the OK button.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
For Windows 2000 and XP, click Start and Run. In the Open field, type cmd. Press the Enter key or  
click the OK button.  
C. In the command prompt, type ping 192.168.1.1 and press the Enter key.  
If you get a reply, the computer is communicating with the Router.  
If you do NOT get a reply, check the cable, and make sure Obtain an IP address automatically is  
selected in the TCP/IP settings for your Ethernet adapter.  
D. In the command prompt, type ping followed by your Internet IP address and press the Enter key. The  
Internet IP Address can be found in the web interface of the Router. For example, if your Internet IP  
address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.  
If you get a reply, the computer is connected to the Router.  
If you do NOT get a reply, try the ping command from a different computer to verify that your original  
computer is not the cause of the problem.  
E. In the command prompt, type ping www.linksys.com and press the Enter key.  
If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the  
ping command from a different computer to verify that your original computer is not the cause of the  
problem.  
If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a  
different computer to verify that your original computer is not the cause of the problem.  
3. I am not getting an IP address on the Internet with my Internet connection.  
A. Refer to “Problem #2, I want to test my Internet connection” to verify that you have connectivity.  
B. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix C:  
Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address  
of your Ethernet adapter onto the Router, see the MAC Address Clone section of “Chapter 5: Setting up  
and Configuring the Broadband Router” for details.  
C. Make sure you are using the right Internet settings. Contact your ISP to see if your Internet connection  
type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Basic  
Setup section of “Chapter 5: Setting up and Configuring the Broadband Router” for details on Internet  
Connection Type settings.  
D. Make sure you use the right cable. Check to see if the Internet LED is solidly lit.  
E. Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port.  
Verify that the Status page of the Router’s Web-based Utility shows a valid IP address from your ISP.  
F. Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router,  
cable/DSL modem, and computer. Check the Status tab of the Router’s Web-based Utility to see if you get  
an IP address.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
32  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
4. I am not able to access the Router’s Web-based Utility Setup page.  
A. Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly  
connected to the Router.  
B. Refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” to verify that  
your computer has an IP Address, Subnet Mask, Gateway, and DNS.  
C. Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”  
D. Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE  
users).”  
5. I can’t get my Virtual Private Network (VPN) to work through the Router.  
Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, and go to  
the VPN => VPN Pass Through tab. Make sure you have IPsec passthrough and/or PPTP passthrough  
enabled.  
VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will  
work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions  
may be possible, depending on the specifics of your VPNs.  
VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router.  
AH has limitations due to occasional incompatibility with the NAT standard.  
Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and  
your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from  
1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the  
Router will have difficulties routing information to the right location. If you change the Router’s IP address to  
192.168.2.1, that should solve the problem. Change the Router’s IP address through the Basic Setup tab of  
the Web-based Utility. If you assigned a static IP address to any computer or network device on the network,  
you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to 254). Note that  
each IP address must be unique within the network.  
Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec  
server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for  
details.  
Check the Linksys website at www.linksys.com for more information.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
6. I need to set up a server behind my Router.  
To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.  
For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and  
port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the  
documentation provided with the server you installed. Follow these steps to set up port forwarding through  
the Router’s Web-based Utility. We will be setting up web, ftp, and mail servers.  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Advanced Setup => Forwarding tab.  
B. Select the Service from the pull-down menu. If the Service you need is not listed in the menu, click the  
Service Management button to add the new Service Name, and enter the Protocol and Port Range. Click  
the Add to List button. Then click the Save Setting button. Click the Exit button.  
C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web  
server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check  
“Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an  
IP address. Then check the Enable checkbox for the entry. Consider the examples below:  
Application  
Web server  
Start and End  
80 to 80  
Protocol  
Both  
IP Address  
Enable  
192.168.1.100  
192.168.1.101  
192.168.1.102  
192.168.1.102  
X
X
X
X
FTP server  
21 to 21  
TCP  
SMTP (outgoing)  
POP3 (incoming)  
25 to 25  
Both  
110 to 110  
Both  
D. Click the Add to List button, and configure as many entries as you like.  
When you have completed the configuration, click the Save Settings button.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
34  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
7. I need to set up online game hosting or use other Internet applications.  
If you want to play online games or use Internet applications, most will work without doing any port  
forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet  
application. This would require you to set up the Router to deliver incoming packets or data to a specific  
computer. This also applies to the Internet applications you are using. The best way to get the information on  
what port services to use is to go to the website of the online game or application you want to use. Follow  
these steps to set up online game hosting or use a certain Internet application:  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Advanced Setup => Forwarding tab.  
B. Select the Service from the pull-down menu. If the Service you need is not listed in the menu, click the  
Service Management button to add the new Service Name, and enter the Protocol and Port Range. For  
example, if you have a web server, you would enter the range 80 to 80. Click the Add to List button. Then  
click the Save Setting button. Click the Exit button.  
C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web  
server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check  
“Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an  
IP address. Then check the Enable checkbox for the entry. Consider the examples below:  
Application  
UT  
Start and End  
7777 to 27900  
27015 to 27015  
5631 to 5631  
500 to 500  
Protocol  
Both  
IP Address  
Enabled  
192.168.1.100  
192.168.1.105  
192.168.1.102  
192.168.1.100  
X
X
X
X
Halflife  
Both  
PC Anywhere  
VPN IPSEC  
UDP  
UDP  
D. Click the Add to List button, and configure as many entries as you like.  
When you have completed the configuration, click the Save Settings button.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
8. I can’t get the Internet game, server, or application to work.  
If you are having difficulties getting any Internet game, server, or application to function properly, consider  
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an  
application requires too many ports or when you are not sure which port services to use. Make sure you  
disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority  
over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings.  
If the port number that the data enters from does not have port forwarding, then the Router will send the data  
to whichever PC or network device you set for DMZ hosting.) Follow these steps to set DMZ hosting:  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Setup => Forwarding tab.  
B. Disable or remove the entries you have entered for forwarding. To delete an entry, select it and then click  
the Delete selected application button. Keep this information in case you want to use it at a later time.  
C. Click the DMZ Host tab.  
D. Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will  
bypass the NAT security for that computer. Please refer to “Appendix C: Finding the MAC Address and IP  
Address for Your Ethernet Adapter” for details on getting an IP address.  
Once completed with the configuration, click the Save Settings button.  
9. I forgot my password, or the password prompt always appears when saving settings to the Router.  
Reset the Router to factory defaults by pressing the Reset button for ten seconds and then releasing it. If you  
are still getting prompted for a password when saving settings, then perform the following steps:  
A. Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Enter  
the default password admin, and click the Setup => Password tab.  
B. Enter the old password in the Old Password field.  
C. Enter a different password in the New Password field, and enter the new password in the Confirm New  
Password field to confirm the password.  
D. Click the Save Settings button.  
Appendix A: Troubleshooting  
Common Problems and Solutions  
36  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
10.I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.  
If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for  
the Internet connection, the computer does not need any proxy settings to gain access. Please follow these  
directions to verify that you do not have any proxy settings and that the browser you use is set to connect  
directly to the LAN.  
For Microsoft Internet Explorer 5.0 or higher:  
A. Click Start, Settings, and Control Panel. Double-click Internet Options.  
B. Click the Connections tab.  
C. Click the LAN settings button and remove anything that is checked.  
D. Click the OK button to go back to the previous screen.  
E. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.  
For Netscape 4.7 or higher:  
A. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies.  
B. Make sure you have Direct connection to the Internet selected on this screen.  
C. Close all the windows to finish.  
11.To start over, I need to set the Router to factory default.  
Hold the Reset button for up to 30 seconds and then release it. This will return the password, forwarding, and  
other settings on the Router to the factory default settings. In other words, the Router will revert to its original  
factory configuration.  
12.I need to upgrade the firmware.  
In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download  
the latest firmware at www.linksys.com. Follow these steps:  
A. Go to the Linksys website at http://www.linksys.com and download the latest firmware, or use the  
Web-based Utility to be automatically redirected to the download webpage. Go to System Management -  
Firmware Upgrade, and click the Firmware Download from Linksys Web Site button. Select the Router  
from the pull-down menu and choose the firmware from the options.  
B. Extract the firmware file on your computer.  
C. To upgrade the firmware, follow the steps in the Upgrade section found in “Chapter 5: Setting up and  
Configuring the Broadband Router” or “Appendix B: Upgrading Firmware.”  
Appendix A: Troubleshooting  
Common Problems and Solutions  
37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
13.My DSL service’s PPPoE is always disconnecting.  
PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a  
period of inactivity, just like a normal phone dial-up connection to the Internet. There is a setup option to  
“keep alive” the connection. This may not always work, so you may need to re-establish connection  
periodically.  
A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the  
Router.  
B. Enter the password, if asked. (The default password is admin.)  
C. On the Basic Setup tab, select the option Keep Alive, and set the Redial Period option at 20 (seconds).  
D. Click the Save Settings button.  
E. Click the Status tab, and click the Connect button.  
F. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see  
the login status display as Connected.  
If the connection is lost again, follow steps E and F to re-establish connection.  
14.I need to use port triggering.  
Port triggering looks at the outgoing port services used and will trigger the Router to open a specific port,  
depending on which port an Internet application uses. Follow these steps:  
A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the  
Router.  
B. Enter the password, if asked. (The default password is admin.)  
C. Click the Advanced Setup => Forwarding tab.  
D. Enter any name you want to use for the Application Name.  
E. Enter the Start and End Ports of the Triggered Port Range. Check with your Internet application provider  
for more information on which outgoing port services it is using.  
F. Enter the Start and End Ports of the Forwarded Port Range. Check with your Internet application provider  
for more information on which incoming port services are required by the Internet application.  
Once completed with the configuration, click the Save Settings button.  
15.When I enter a URL or IP address, I get a time-out error or am prompted to retry.  
• Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address,  
Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.  
• If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and  
powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power  
connections.)  
Appendix A: Troubleshooting  
Common Problems and Solutions  
38  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
• If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is  
working correctly. You can remove the Router to verify a direct connection.  
• Manually configure the TCP/IP with a DNS address provided by your ISP.  
• Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet  
Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is  
set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy.  
Make sure that Netscape Navigator is set to Direct connection to the Internet.  
Frequently Asked Questions  
Is IPSec Passthrough supported by the Router?  
Yes, enable or disable IPSec Passthrough on the VPN => VPN Pass Through tab.  
Where is the Router installed on the network?  
In a typical environment, the Router is installed between the cable/DSL modem and the LAN. Plug the Router into  
the cable/DSL modem’s Ethernet port.  
Does the Router support IPX or AppleTalk?  
No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications.  
IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a  
communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but  
those protocols cannot connect from the Internet to the LAN.  
What is Network Address Translation and what is it used for?  
Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that  
is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is  
never transmitted on the Internet. Furthermore, NAT allows the Router to be used with low cost Internet accounts,  
such as DSL or cable modems, when only one TCP/IP address is provided by the ISP. The user may have many  
private addresses behind this single address provided by the ISP.  
Does the Router support any operating system other than Windows 98, Millennium, 2000, or XP?  
Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of  
any non-Windows operating systems.  
Does the Router support ICQ send file?  
Yes, with the following fix: click ICQ menu => preference => connections tab=>, and check I am behind a  
firewall or proxy. Then set the firewall time-out to 80 seconds in the firewall setting. The Internet user can then  
send a file to a user behind the Router.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
I set up an Unreal Tournament Server, but others on the LAN cannot join. What do I need to do?  
If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN  
computers and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You can  
also use a port forwarding range of 7777 to 27900. If you want to use the UT Server Admin, forward another port  
(8080 usually works well but is used for remote admin. You may have to disable this.), and then in the  
[UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to match the mapped port above) and  
ServerName to the IP assigned to the Router from your ISP.  
Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP  
address?  
It depends on which network game or what kind of game server you are using. For example, Unreal Tournament  
supports multi-login with one public IP.  
How do I get Half-Life: Team Fortress to work with the Router?  
The default client port for Half-Life is 27005. The computers on your LAN need to have “+clientport 2700x”  
added to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect  
to the same server. One problem: Version 1.0.1.6 won’t let multiple computers with the same CD key connect at  
the same time, even if on the same LAN (not a problem with 1.0.1.3). As far as hosting games, the HL server does  
not need to be in the DMZ. Just forward port 27015 to the local IP address of the server computer.  
How can I block corrupted FTP downloads?  
If you are experiencing corrupted files when you download a file with your FTP client, try using another FTP  
program.  
The web page hangs; downloads are corrupt, or nothing but junk characters are being displayed on the  
screen. What do I need to do?  
Force your Ethernet adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate” feature of your  
Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s  
Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at  
www.linksys.com for more information.  
If all else fails in the installation, what can I do?  
Reset the Router by holding down the Reset button for ten seconds. Reset your cable or DSL modem by powering  
the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys  
website, www.linksys.com.  
How can I be notified of new Router firmware upgrades?  
All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com, where they can be  
downloaded for free. The Router’s firmware can be upgraded using the Web-based Utility. If the Router’s Internet  
connection is working well, there is no need to download a newer firmware version, unless that version contains  
Appendix A: Troubleshooting  
Frequently Asked Questions  
40  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
new features that you would like to use. Downloading a more current version of Router firmware will not  
enhance the quality or speed of your Internet connection, and may disrupt your current connection stability.  
Will the Router function in a Macintosh environment?  
Yes, but the Router’s setup pages are accessible only through Internet Explorer 5.0 or Netscape Navigator 5.0 or  
higher for Macintosh.  
I am not able to get the web configuration screen for the Router. What can I do?  
You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet  
Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make  
sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is  
set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and  
then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape  
Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct  
connection to the Internet.  
What is DMZ Hosting?  
Demilitarized Zone (DMZ) allows one IP address (computer) to be exposed to the Internet. Some applications  
require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you  
want to use DMZ Hosting. To get the LAN IP address, see “Appendix C: Finding the MAC Address and IP Address  
for Your Ethernet Adapter.”  
If DMZ Hosting is used, does the exposed user share the public IP with the Router?  
No.  
Does the Router pass PPTP packets or actively route PPTP sessions?  
The Router allows PPTP packets to pass through.  
Is the Router cross-platform compatible?  
Any platform that supports Ethernet and TCP/IP is compatible with the Router.  
How many ports can be simultaneously forwarded?  
Theoretically, the Router can establish 4,000 sessions at the same time, but you can only forward 30 ranges of  
ports.  
Does the Router replace a modem? Is there a cable or DSL modem in the Router?  
No, this version of the Router must work in conjunction with a cable or DSL modem.  
Which modems are compatible with the Router?  
The Router is compatible with virtually any cable or DSL modem that supports Ethernet.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
How can I check whether I have static or DHCP IP addresses?  
Ask your ISP to find out.  
How do I get mIRC to work with the Router?  
Under the Setup => Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.  
If your questions are not addressed here, refer to the Linksys website, www.linksys.com.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
42  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix B: Upgrading Firmware  
You can use the Router’s Web-based Utility to upgrade the firmware; however, if you do so, you may lose the  
settings you have configured on the Router.  
To upgrade the Router’s firmware, follow these instructions:  
1. Download the Router’s firmware upgrade file from the Linksys website, www.linksys.com or click the  
Firmware Download from Linksys Web Site button that appears on the System Management screen under  
the Advanced Setup tab. Select the Router from the pull-down menu and choose the firmware from the  
options.  
2. After downloading the file, extract it on your computer.  
3. Under Firmware Upgrade, on the same screen, click the Browse button to select the firmware file.  
4. Click the Firmware Upgrade Right Now button, and follow the on-screen instructions.  
Figure B-1: Advanced Setup Tab - System Management  
Appendix B: Upgrading Firmware  
43  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10/100 4-Port VPN Router  
Appendix C: Finding the MAC Address and IP Address for  
Your Ethernet Adapter  
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC  
address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter. This  
IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to  
find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.  
Windows 98 or Me Instructions  
1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.  
2. When the IP Configuration screen appears, select the Ethernet adapter you have connected to the Router via a  
CAT 5 Ethernet network cable.  
3. Write down the Adapter Address as shown on your computer screen. This is the MAC address for your  
Ethernet adapter and is shown as a series of numbers and letters.  
Figure C-1: IP Configuration Screen  
The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.  
The example shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show something  
different.  
Note: The MAC address is also called the Adapter Address.  
Windows 2000 or XP Instructions  
1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button.  
2. At the command prompt, enter ipconfig /all. Then press the Enter key.  
Figure C-2: MAC Address/Adapter Address  
Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter  
Windows 98 or Me Instructions  
44  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10/100 4-Port VPN Router  
3. Write down the Physical Address as shown on your computer screen; it is the MAC address for your Ethernet  
adapter. This appears as a series of numbers and letters.  
The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering.  
Note: The MAC address is also called the Physical Address.  
The example shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show something  
different.  
For the Router’s Web-based Utility  
Figure C-3: MAC Address/Physical Address  
Some ISPs require that you register a MAC address. This feature “clones” your network adapter's MAC address  
onto the Router, and prevents you from having to call your ISP to change the registered MAC address to the  
Router's MAC address. The Router's MAC address is a 12-digit code assigned to a unique piece of hardware for  
identification.  
Enter the MAC Address in the User Defined MAC Address field for Internet ports 1 or 2, or click the Clone button  
to add the MAC Address from the PC viewing the Web-based Utility.  
Click Save Settings to save the MAC Cloning settings or click the Cancel Changes button to undo your changes.  
Figure C-4: MAC Address Clone  
Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter  
For the Router’s Web-based Utility  
45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix D: Using the RT042 Utility  
While many of the Router’s functions can be utilized through the Web-based Utility, a separate utility also comes  
on the Router’s CD. This RT042 Utility is more graphically oriented and can do many, though not all, of the things  
the Web-based Utility can do.  
Starting the Utility  
To start the utility, put the Router’s CD in your PC’s CD-Rom drive and open it. Then, double-click the Utility icon  
on the CD. You will then need to enter a password, this is the same as the Web-based Utility’s password, which is  
by default, admin.  
After entering the password and clicking the OK button, the Utility will automatically detect the PC connected to  
the Router on your network and its settings. The main Utility screen will then open.  
This screen gives a graphical representation of the Router’s connection to the Internet, displaying which Internet  
ports are active. From this screen, you can also control the amount of bandwidth used.  
NOTE: You can change the Router’s password by clicking the PassPort Configuration icon at the  
bottom of the screen. You will be enter the old password. Then, enter the new password once in the  
New Password field and again in the Confirm New Password field for confirmation. Then, click the  
Save button, to save the new password.  
Figure D-1: The Utility’s Main Screen  
Appendix D: Using the RT042 Utility  
Starting the Utility  
46  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Router Information  
Clicking on the image of the Router will open up the Router Information screen.  
The left side of this screen gives general statistics about the Router: Serial Number, Firmware Version, and  
Internet Connection types as well as bandwidth for each Internet port.  
The right side of the screen provides user information for your network users, depending upon which Internet  
port they are accessing. You can also view which user is taking up the most bandwidth on your network from the  
usage percentage information.  
From this screen, you can select PCs on your network whose usage you want to configure, either by restricting or  
optimizing their performance. By double-clicking the user listed, that user will appear as the PC icon on the  
Utility’s main screen.  
Figure D-2: The Router Information Screen  
Usage Configuration Screens  
Connection Status  
The icons in the upper left corner also provide the following information on your connection status.  
Router Status (earth) Icon: The earth icon shows the network connection status. The earth will spin when the  
router is connectin to the Internet.  
Internet 1/Internet 2 Icons: Click the Internet2 button to switch to the other Internet port. Click the Internet 1  
button to view and edit the Internet configuration. As you change the Internet port, the screen will change  
acccordingly. If dual Internet is used , you can see who is going through Internet1 and Internet2. If only Internet 1  
is used the status of Internet 2 will be shown as NOT AVAILABLE.  
PC Status Icon: All PCs that are connected to the Router will be recorded and displayed. The off-line PCs will be  
shown as Intenet Disconnected, and on-line PCs will be shown as Internet Connected. PCs with a blue dot can be  
connected to the Internet, and the PCs with an orange dot can’t connect to the Internet. When PCs are connecting  
to the Internet, the dot will flicker. You can prevent the selected PC from connecting to the Internet by clicking the  
blue dot, which will turn it orange. You can then click the orange dot again to allow it to connect to the Internet.  
The Host Name and IP Address of all PCs will display, and you can click the right mouse button to rename the host  
name for the PC.  
Appendix D: Using the RT042 Utility  
Router Information  
47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Right Mouse click options: Select the PC, click the right mouse button, and the following tools will be available.  
View button: Click View Scheduler / View Hit Rate / View Usage / View Performance Optimization button to  
view the page of the user’s passport.  
Connect to Internet 1/2: You can click the button to connect to the other internet port if both wan ports are  
used.  
Remove: You can click the Remove button to remove the selected PC from the topology. Because the PC  
was once connected to your home network by an occasional user, it will be recorded, and you can use this  
tool to remove the PC if you don’t need to manage it from the topology.  
Bandwidth Control  
The left arrow controls the guaranteed bandwidth, and right arrow limits the bandwidth for each user. The  
percentage and bandwidth (kbps) from the minimum to maximum will display accordingly. The default is no  
guarantee and limit bandwidth, so the default min rate is 0% and max rate is 100%. You can allocate the  
guaranteed bandwidth for each user, with the total minimum bandwidth being 100% of the max bandwidth  
provided by the ISP. For example, if the max upstream bandwidth provided by ISP is 512Kbit/sec, and you allocate  
50% for user A, he will get 256Kbit/sec guaranteed bandwidth. The max bandwidth user A can use will be  
512Kbit/sec, but you also can lower the max bandwidth to limit the bandwidth for this user. For example, if you  
limit the max as 70%, the maximum bandwidth user A can use will be around 358Kbit/sec.  
Figure D-3: The On-Line Scheduler  
Once you change the bandwidth settings or rename the host name of PC, the Save bar will appear. After finishing  
the changes click the Save button to apply the changes, or click the Cancel button to undo the changes.  
As noted above, you can configure each user’s access to the Router, either by restricting or optimizing  
performance, by clicking the right arrow bar or the PC icon on the Utility’s main screen, after selecting the user.  
This will open up the configuration screens. These are:  
On-Line Scheduler: This allows you to allow or deny Internet access, according to the schedule, to any of the  
users on your network.  
Hit Rate: From this screen, you can view the frequency at which each of your network’s users are viewing their  
ten most favorite websites. You can also block these sites, if you wish.  
Real Time Usage: From this screen, you can view which applications are taking up the most bandwidth on your  
network, according to user, and block those sites if you wish.  
Performance Optimization: From this screen, you can list the network applications most often used on your  
network, according to user, and set the priority at which it is run.  
Figure D-4: The Hit Rate Screen  
Appendix D: Using the RT042 Utility  
Usage Configuration Screens  
48  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
On-Line Scheduler  
From the schedule, you can restrict or allow access to the Internet. Select any day in the schedule or hours of  
time.  
To refresh the information on the screen, click the Refresh button. If you need help on-line, click the Help button.  
Click Save to save the schedule or click the Cancel button to undo your changes.  
Figure D-5: The Real Time Usage Screen  
Hit Rate  
From the Hit Rate screen, you can view the frequency at which each of your network’s users are viewing their ten  
most favorite websites. You can also block these sites, if you wish.  
Website information is displayed in ranking order, from most viewed to least viewed, with the amount of “hits”  
displayed. Each website is displayed as a link, so you can click the name to bring up the site. Clicking the Block  
box will restrict that user from viewing that website.  
View URL Block List: Clicking this button will show which sites have been blocked for this user.  
View One Week History: Click this button will display which websites this user viewed in the past week. You can  
also select individual days for further information.  
To refresh the information on the screen, click the Refresh button. If you need help on-line, click the Help button.  
Click Save to save the blocked list or click the Cancel button to undo your changes.  
Figure D-6: The Hit Rate Screen  
Appendix D: Using the RT042 Utility  
Usage Configuration Screens  
49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Real Time Usage  
From this screen, you can view which applications are taking up the most bandwidth on your network, according  
to user, and block those sites if you wish.  
Application information is displayed in ranking order, from most viewed to least viewed, with the amount of usage  
displayed for each application. For each application, there is also a column showing port number used. Clicking  
the Block box will restrict that user from utilizing that application.  
View Application Block List: Clicking this button will show which applications have been blocked for this user.  
View One Week History: Click this button will display which applications used in the past week. You can also  
select individual days for further information.  
To refresh the information on the screen, click the Refresh button. If you need help on-line, click the Help button.  
Click Save to save the blocked list or click the Cancel button to undo your changes.  
Performance Optimization  
From the Performance Optimization screen, you can list the network applications most often used on your  
network, according to user, and set the priority at which it is run.  
All applications are set at a Good level of optimization, shown in green, by default. To change this setting, click  
the Enable box next to the application. Then, you can move the slider to Normal optimization, shown in yellow, or  
Better optimization, shown in blue. Moving the slider towards yellow will decrease performance, while moving  
the slider towards blue will increase performance.  
To refresh the information on the screen, click the Refresh button. If you need help on-line, click the Help button.  
Click Save to save the blocked list or click the Cancel button to undo your changes.  
Figure D-7: The Performance Optimization Screen  
Appendix D: Using the RT042 Utility  
Usage Configuration Screens  
50  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix E: The Setup Wizard  
While the Broadband Router can be set up using the Web-based Utility, Internet connection can also be set up  
using the Setup Wizard, located on the Network screen of the Basic Setup tab. This wizard will walk you through  
the steps necessary to set up your Internet connection.  
1. Click the Setup Wizard button on the Network screen to run the Setup Wizard to quickly set up the Router’s  
Internet access.  
Figure E-1: Basic Setup Tab - Network  
2. The first screen to appear will ask for a Host and Domain name. Your Internet Service Provider (ISP) may  
require this information. If your ISP requires them, enter the Host Name and Domain Name in the fields  
provided. Click Next to continue. Click Previous if you want to return to the previous screen. Click Exit if you  
want to exit the wizard.  
Figure E-2: Enter Host and Domain Names  
Appendix E: The Setup Wizard  
51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
3. From the next screen, choose your WAN (or Internet) connection type. Obtain an IP automatically is chosen  
by default. Click Next to continue. Click Previous if you want to return to the previous screen. Click Exit if you  
want to exit the wizard.  
Figure E-3: Select WAN connection Type  
4. The next screen that appears depends on your Internet Connection Type.  
If you chose Obtain an IP automatically, the Obtain an IP automatically screen appears. Select Use DNS  
Server provided by ISP (default) or Use the Following DNS Server Addresses, if you want to enter a  
specific IP. Click Next to continue. Click Previous if you want to return to the previous screen. Click Exit if you  
want to exit the wizard.  
Figure E-4: Obtain an IP automatically  
Appendix E: The Setup Wizard  
52  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
If you chose Static IP, the Static IP screen appears. Enter the Static IP, Subnet Mask, and Default Gateway  
provided by your ISP. Click Next to continue. Click Previous if you want to return to the previous screen. Click  
Exit if you want to exit the wizard.  
Figure E-5: Static IP  
If you chose PPPoE, the PPPoE screen appears. Enter the User Name and Password provided by your ISP.  
Click Next to continue. Click Previous if you want to return to the previous screen. Click Exit if you want to  
exit the wizard.  
Figure E-6: PPPoE  
5. On the final screen, you can save your settings, if you don’t need to make any changes. Click Previous if you  
want to return to the previous screen. Click Exit if you want to exit the wizard.  
Figure E-7: Basic Setup Tab - Network  
Appendix E: The Setup Wizard  
53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix F: Windows Help  
All Linksys networking products require Microsoft Windows. Windows is the most used operating system in the  
world and comes with many features that help make networking easier. These features can be accessed through  
Windows Help and are described in this appendix.  
TCP/IP  
Before a computer can communicate with the Router, TCP/IP must be enabled. TCP/IP is a set of instructions, or  
protocol, all PCs follow to communicate over a wired or wireless network. Your PCs will not be able to utilize  
networking without having TCP/IP enabled. Windows Help provides complete instructions on enabling TCP/IP.  
Shared Resources  
If you wish to share printers, folders, or files over your network, Windows Help provides complete instructions on  
utilizing shared resources.  
Network Neighborhood/My Network Places  
Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the  
version of Windows you're running). Windows Help provides complete instructions on adding PCs to your  
network.  
Appendix F: Windows Help  
54  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix G: Glossary  
Adapter - A device that adds network functionality to your PC.  
Bandwidth - The transmission capacity of a given device or network.  
Bit - A binary digit.  
Boot - To start a device and cause it to start executing instructions.  
Broadband - An always-on, fast Internet connection.  
Browser - An application program that provides a way to look at and interact with all the information on the  
Internet.  
Byte - A unit of data that is usually eight bits long  
Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the  
Internet.  
DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or e-mail server with a  
Default Gateway - A device that forwards Internet traffic from your local area network.  
DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign  
temporary IP addresses to network computers by "leasing" an IP address to a user for a limited amount of time,  
instead of assigning permanent IP addresses.  
DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from  
the Internet.  
DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP  
addresses.  
Domain - A specific name for a network of computers.  
Download - To receive a file transmitted over a network.  
DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.  
Appendix G: Glossary  
55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Dynamic IP Address - A temporary IP address assigned by a DHCP server.  
Ethernet - A network protocol that specifies how data is placed on and retrieved from a common transmission  
medium.  
Firewall - A set of related programs located at a network gateway server that protects the resources of a  
network from users from other networks.  
Firmware - The programming code that runs a networking device.  
FTP (File Transfer Protocol) - A protocol used to transfer files over a TCP/IP network.  
Full Duplex - The ability of a networking device to receive and transmit data simultaneously.  
Gateway - A device that interconnects networks with different, incompatible communications protocols.  
Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a  
time.  
Hardware - The physical aspect of computers, telecommunications, and other information technology devices.  
HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the Internet.  
IP (Internet Protocol) - A protocol used to send data over a network.  
IP Address - The address used to identify a computer or device on a network.  
IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device.  
IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer.  
ISP (Internet Service Provider) - A company that provides access to the Internet.  
LAN - The computers and networking products that make up your local network.  
MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking  
device.  
mIRC - An Internet Relay Chat program that runs under Windows.  
NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different  
IP address for the Internet.  
Appendix G: Glossary  
56  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or  
transmission between users.  
Node - A network junction or connection point, typically a computer or work station.  
Packet - A unit of data sent over a network.  
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.  
POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet.  
Port - The connection point on a computer or networking device used for plugging in cables or adapters.  
PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication  
(username and password) in addition to data transport.  
PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be  
tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe.  
Router - A networking device that connects multiple networks together.  
Server - Any computer whose function in a network is to provide user access to files, printing, communications,  
and other services.  
SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.  
SPI (Stateful Packet Inspection) Firewall - A technology that inspects incoming packets of information before  
allowing them to enter the network.  
Static IP Address - A fixed address assigned to a computer or device that is connected to a network.  
Static Routing - Forwarding data in a network via a fixed path.  
Subnet Mask - An address code that determines the size of the network.  
Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of  
devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an  
electrical circuit.  
TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement  
from the recipient of data sent.  
Appendix G: Glossary  
57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a  
network.  
TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password  
capability.  
UDP (User Datagram Protocol) - A network protocol for transmitting data that does not require acknowledgement  
from the recipient of the data that is sent.  
Upgrade - To replace existing software or firmware with a newer version.  
URL (Uniform Resource Locator) - The address of a file located on the Internet.  
VPN (Virtual Private Network) - A security measure to protect data as it leaves one network and goes to another  
over the Internet.  
WAN (Wide Area Network)- The Internet.  
WINIPCFG - A Windows 98 and Me utility that displays the IP address for a particular networking device.  
Appendix G: Glossary  
58  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix H: Specifications  
Standards  
IEEE 802.3, 802.3u  
Ports  
Power, Internet, and Ethernet  
Button  
Reset  
Cabling Type  
LEDs  
Cat-5  
Ethernet, Internet1, Internet2, Diag, and System  
UPnP able/cert  
Security Features  
able  
SPI, port, MAC, IP filter  
Dimensions  
(W x H x D)  
6.69" x 6.69" x 1.26"  
(170 mm x 170 mm x 32 mm)  
Unit Weight  
11.29 oz. (3.32 kg)  
3.3V 2.5A  
Power  
Certifications  
Operating Temp.  
Storage Temp.  
Operating Humidity  
Storage Humidity  
FCC  
0ºC to 40ºC (32ºF to 104ºF)  
0ºC to 70ºC (32ºF to 158ºF)  
10% to 85% Non-Condensing  
5% to 90% Non-Condensing  
Appendix H: Specifications  
59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix I: Warranty Information  
LIMITED WARRANTY  
Linksys warrants to You that, for a period of one year (the “Warranty Period”), your Linksys Product will be substantially  
free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under  
this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any  
rebates. This limited warranty extends only to the original purchaser.  
If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return  
Authorization Number, if applicable. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. If You are  
requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a  
copy of your original proof of purchase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. You  
are responsible for shipping defective Products to Linksys. Linksys pays for UPS Ground shipping from Linksys back to You  
only. Customers located outside of the United States of America and Canada are responsible for all shipping and handling  
charges.  
ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED  
TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND  
WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not  
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You. This warranty gives  
You specific legal rights, and You may also have other rights which vary by jurisdiction.  
This warranty does not apply if the Product (a) has been altered, except by Linksys, (b) has not been installed, operated,  
repaired, or maintained in accordance with instructions supplied by Linksys, or (c) has been subjected to abnormal  
physical or electrical stress, misuse, negligence, or accident. In addition, due to the continual development of new  
techniques for intruding upon and attacking networks, Linksys does not warrant that the Product will be free of  
vulnerability to intrusion or attack.  
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT,  
OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF  
LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT  
(INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT  
WILL LINKSYS’ LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even  
if any warranty or remedy provided under this Agreement fails of its essential purpose. Some jurisdictions do not allow the  
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to You.  
Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.  
60  
Appendix I: Warranty Information  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix J: Regulatory Information  
FCC Statement  
This product has been tested and complies with the specifications 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 according to 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 is found by turning the equipment off and on,  
the user is encouraged to try to correct the interference by one or more of the following measures:  
Reorient or relocate the receiving antenna  
Increase the separation between the equipment or devices  
Connect the equipment to an outlet other than the receiver's  
Consult a dealer or an experienced radio/TV technician for assistance  
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 and your body.  
Industry Canada (Canada)  
This Class B digital apparatus complies with Canadian ICES-003.  
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.  
The use of this device in a system operating either partially or completely outdoors may require the user to obtain  
a license for the system according to the Canadian regulations.  
Appendix J: Regulatory Information  
61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Broadband Router  
Appendix K: Contact Information  
Need to contact Linksys?  
Visit us online for information on the latest products and updates  
to your existing products at:  
ftp.linksys.com  
Can't find information about a product you want to buy  
on the web? Do you want to know more about networking  
with Linksys products? Give our advice line a call at:  
Or fax your request in to:  
800-546-5797 (LINKSYS)  
949-823-3002  
If you experience problems with any Linksys product,  
you can call us at:  
800-326-7114  
Don't wish to call? You can e-mail us at:  
If any Linksys product proves defective during its warranty period,  
you can call the Linksys Return Merchandise Authorization  
department for obtaining a Return Authorization Number at:  
(Details on Warranty and RMA issues can be found in the Warranty  
Information section in this Guide.)  
949-823-3000  
Appendix K: Contact Information  
62  
Download from Www.Somanuals.com. All Manuals Search And Download.  

KVH Industries Satellite TV System TracVision G6 User Manual
La Crosse Technology Weather Radio S84193 User Manual
LG Electronics Dishwasher LDS5040BB User Manual
Lightolier Indoor Furnishings 1001HSW User Manual
Link electronic Stereo Amplifier PAA 60 User Manual
Logitech Computer Keyboard Tab4 101 User Manual
Magic Chef Microwave Oven MCM1110STK User Manual
Maverick Ventures Thermostat ET 68 User Manual
Metra Electronics Car Stereo System 99 8225G User Manual
MicroBoards Technology Printer Print Factory User Manual