D LINK BROADBAND DSL 2540B User Manual

Table of Contents  
Status..........................................................................54  
Device Info.............................................................54  
DHCP Clients.........................................................54  
WAN Info................................................................55  
Route Info ..............................................................55  
Log.........................................................................56  
LAN........................................................................56  
WAN ......................................................................57  
ADSL .....................................................................58  
ADSL BER Test......................................................59  
Troubleshooting.........................................................61  
Networking Basics ....................................................63  
Check your IP address ..........................................63  
Statically Assign an IP address .............................64  
Contacting Technical Support..................................65  
Warranty.....................................................................66  
Registration................................................................68  
D-Link DSL-ꢀ540B ADSLꢀ+ 4-Port Router User Manual  
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Section 1 - General Information  
General Information  
The D-Link DSL-ꢀ540B is an ADSLꢀ+ router offering the convenience of 4 LAN ports for additional computers. This  
user manual provides you with a simple and easy-to-understand format to install and configure your router.  
Package Contents  
• ADSLꢀ/ꢀ+ 4-Port Ethernet Router  
• 1ꢀVDC, 1A DC CEC-compliant switching power adapter  
• RJ-11 telephone cable  
• RJ-45 Ethernet cable  
• Quick Install Guide  
• Documentation CD-ROM (QIG + user manual)  
Note: Using a power supply with a different voltage rating than the one included with the DSL-2540B will cause damage  
and void the warranty for this product.  
Important Safety Instructions  
• Place your router on a flat surface close to the cables in a location with sufficient ventilation.  
To prevent overheating, do not obstruct the ventilation openings of this equipment.  
• Plug this equipment into a surge protector to reduce the risk of damage from power surges and lightning  
strikes.  
• Operate this equipment only from an electrical outlet with the correct power source as indicated on the  
adapter.  
• Do not open the cover of this equipment. Opening the cover will void any warranties on the equipment.  
• Unplug equipment first before cleaning. A damp cloth can be used to clean the equipment. Do not use  
liquid/aerosol cleaners or magnetic/static cleaning devices.  
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Section 1 - General Information  
Front Panel View  
Internet LED  
A solid green light indicates that the router has an IP  
address and is connected to the Internet. A red light  
indicates that the router does not have an IP address  
or authentication has failed. No light indicates that  
an ADSL connection is not present or the router is in  
bridge mode.  
DSL LED  
A Solid light indicates the DSL is synchronized.  
A flashing LED indicates the router is attempting  
to synchronize with the DSL provider.  
Power LED  
A solid green light indicates  
the unit is powered up. A red  
light indicates a malfunction.  
Status LED  
A blinking light indicates traffic is  
passing through.  
Local Network LEDs  
A solid light indicates a connection to an  
Ethernet-enabled computer on ports 1-4.  
This LED blinks during data transmission.  
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Section 1 - General Information  
Rear Panel View  
DSL Line  
ON/OFF  
LAN Ports (1-4)  
Connecttoanactivetelephone  
line (RJ-11).  
Press this button to turn the  
unit on or off.  
Connect Ethernet devices such as  
computers, switches, and hubs.  
Reset  
Power Receptor  
Pressing the Reset button restores the router to  
its original factory default settings.  
Receptor for the supplied power  
adapter.  
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Section ꢀ - Installing The Router  
Installing the Router  
Connect the ADSL and Telephone Lines  
• Connect an RJ-11 cable between the wall phone jack and the line-end of the splitter (see diagram  
below).  
• Attach another RJ-11 phone cable to the router-end of the splitter and the ADSL port on the rear panel  
of the router.  
• The phone-end of the splitter will be connected to the telephone using a third RJ-11 phone cable.  
NOTE: See connections on the installation diagram.  
Connect the PC to the Router  
To use the Ethernet connection, connect the Ethernet cable from the computer directly to the router.  
Connect one end of the Ethernet cable to the port labeled LAN on the back of the router and attach the  
other end to the Ethernet port of your computer.  
• If your LAN has more than one computer, you can attach one end of an Ethernet cable to a hub or a  
switch and the other to the Ethernet port (labeled LAN) on the router. Note that either a crossover or  
straight-through Ethernet cable can be used.The router automatically recognizes the type of connection  
that is required.  
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Section ꢀ - Installing The Router  
Connect the Power Adapter  
• Complete the process by connecting the supplied 1ꢀVAC, 1A power adapter to the POWER connector  
on the back of the device and plug the adapter into a wall outlet or power strip.Then turn on and boot up  
your PC and any LAN devices, such as hubs or switches, and any computers connected to them.  
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Section 3 - Installation Diagram  
Installation Diagram  
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Section 4 - Configuring Your Computer  
Configuring Your Computer  
Prior to accessing the router through the LAN port, note the following necessary configurations:  
Your PC’s TCP/IP address: 19ꢀ.168.1.x (where “x” is any number between ꢀ and ꢀ54)  
• The router’s default IP address: 19ꢀ.168.1.1  
• Subnet mask: ꢀ55.ꢀ55.ꢀ55.0  
Below are the procedures for configuring your computer. Follow the instructions for the operating system that you  
are using.  
Windows® 2000  
These are instructions for configuring your Windows® ꢀ000 operating system. If you are using Windows® XP please  
proceed to page 10.  
1. In the Windows taskbar, click on the Start button and point to Settings > Control Panel > Network and  
Dial-up Connections (in that order).  
ꢀ. Click on Local Area Connection. When you have the Local Area Connection Status window open, click  
on Properties.  
3. Listed in the window are the installed network components. If the list includes Internet Protocol (TCP/IP),  
then the protocol has already been enabled, and you can skip to Step 10.  
4. If Internet Protocol (TCP/IP) does not appear as an installed component, then click on Install.  
5. In the Select Network Component Type window, click on protocol and then the Add button.  
6. Select Internet Protocol (TCP/IP) from the list and then click on OK.  
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Section 4 - Configuring Your Computer  
7. If prompted to restart your computer with the new settings, click OK.  
8. After your computer restarts, click on the Network and Dial-up Connections icon again, and right click on  
the Local Area Connection icon and then select Properties.  
9. In the Local Area Connection Properties dialog box, select Internet Protocol (TCP/IP) and then click on  
Properties.  
10. In the Internet Protocol (TCP/IP) Properties dialog box, click in the radio button labeled Use the following  
IP address and type 19ꢀ.168.1.x (where “x” is any number between ꢀ and ꢀ54) and ꢀ55.ꢀ55.ꢀ55.0 in the  
IP address field and Subnet Mask field.  
11. Click on OK twice to save your changes and then close the Control Panel.  
Windows® XP  
1. In the Windows taskbar, click on the Start button then go to Control Panel and then click Network  
Connections.  
ꢀ. In the Network Connections window, right click on the Local Area Connection icon and click on  
Properties.  
3. Listed in the Local Area Connection window are the installed network components. Make sure the box  
for Internet Protocol (TCP/IP) is checked and then click on Properties.  
4. In the Internet Protocol (TCP/IP) Properties dialog box, click on the radio button labeled Use the following  
IP address and type 19ꢀ.168.1.x (where x is any number between ꢀ and ꢀ54) for the IP address field  
and ꢀ55.ꢀ55.ꢀ55.0 for the Subnet Mask field.  
5. Click on OK twice to save your changes and then close the Control Panel.  
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Section 5 - Log In To The Router  
Log in to the Router  
This section will explain how to log in to your router using the following steps:  
1. Launch your web browser.  
A login screen like the one below will be displayed after you connect to the user interface.  
Note: There are three account types, each  
requiring a different username and password.  
• The user account provides limited access to  
certain configurations (username / password:  
user / user).  
• The admin account can perform all functions  
(username / password: admin / admin).  
• The support account is for ISP technicians for  
maintenance purposes  
(username / password: support / support).  
Note: Passwords can be changed at any time.  
3. Enter your user name and password, and then click OK to display the user interface.  
Note: This manual has been prepared using the admin user name.  
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Section 6 - Home  
Home  
The home section provides configurations for general use, including a Quick Setup Wizard with steps to quickly set  
up your router for Internet connection. Also included in this section are LAN/WAN setup and DNS configuration. The  
below sections explains the setup for each.  
Wizard  
This section will explain how to quickly configure the router if your only intention is to access the Internet.  
ATM PVC Configuration  
To enable the auto-connect process, click on the box labeled DSL Auto-connect, a process that will automatically  
detect the first usable PVC and automatically detect PPPoE, PPPoA, and Bridge Protocol (with DHCP Server available).  
To continue, click on the Next button.  
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Section 6 - Home  
If you uncheck the DSL Auto-connect box, the resulting screen is seen below. Enter the VPI/VCI as indicated by your  
ISP. There is also an option to enable Quality of Service. When you are ready, click Next to continue.  
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Section 6 - Home  
Next is the Connection Type screen where you can select the type of network protocol and encapsulation mode over  
the ATM PVC that your ISP has instructed you to use. The following is a PPPoA example. Click Next to continue.  
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Section 6 - Home  
Enter the PPP username and password given by your ISP. Then decide if you will be using any features such as dial  
on demand, PPP IP extension, keep alive and then click on Next.  
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Section 6 - Home  
The next step is to configure the Network Address Translation (NAT) settings. For the example, NAT will be enabled.  
Leave the remaining fields at their defaults and click Next to continue.  
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Section 6 - Home  
In this section, you can configure the DSL Router IP address and Subnet Mask to make the LAN interface correspond  
to your LAN’s IP Subnet. If you want the DHCP server to automatically assign IP addresses, then enable the DHCP  
server and enter the range of IP addresses that the DHCP server can assign to your computers. Disable the DHCP  
server if you would like to manually assign IP addresses. Click Next to continue.  
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Section 6 - Home  
After all WAN configurations are complete, the WAN Setup Summary screen displays all WAN settings that you have  
made. Check that the settings are correct before clicking on the Save/Reboot button. Clicking on Save/Reboot will  
save your settings and restart your router.  
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Section 6 - Home  
WAN  
Configure the WAN settings as provided by your ISP.  
Click on the Add button if you want to add a  
new connection for the WAN interface and  
to proceed to the ATM PVC Configuration  
screen as seen on page ꢀ1.The ATM PVC  
Configuration screen allows you to configure  
an ATM PVC identifier (VPI and VCI) and  
select a service category.  
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Section 6 - Home  
Note: The Following settings are ISP dependant. For information regarding proper configuration, contact your ISP.  
VPI: Virtual Path Identifier. The valid range is 0 to ꢀ55.  
Virtual Channel Identifier. The valid range is 3ꢀ to 65535.  
Five classes of traffic are listed:  
VCI:  
Service  
Category:  
UBR Without PCR UBR service is suitable for applications that can  
(Unspecified Bit Rate without tolerate variable delays and some cell losses.  
Peak Cell Rate): Applications suitable for UBR service include text/  
data/image transfer, messaging, distribution, and  
retrieval and also for remote terminal applications  
such as telecommuting.  
UBR With PCR (Unspecified  
Bit Rate with Peak Cell  
Rate):  
UBR service is suitable for applications that can  
tolerate variable delays and some cell losses. The  
Peak Cell Rate is a determining factor in how often  
cells are sent in an effort to minimize lag or jitter  
caused by traffic inconsistencies.  
CBR (Constant Bit Rate): Used by applications that require a fixed data rate  
that is continuously available during the connection  
time. It is commonly used for uncompressed audio  
and video information such as videoconferencing,  
interactive audio (telephony), audio / video distribution  
(e.g.television, distance learning, and pay-per-view),  
and audio / video retrieval (e.g.video-on-demand and  
audio library).  
Non Realtime VBR  
(Non-Real-time  
Can be used for data transfers that have critical response-time requirements such as airline reservations,  
banking transactions, and process monitoring.  
Variable Bit Rate):  
Realtime VBR (Real-time  
Variable Bit Rate):  
Used by time-sensitive applications such as real-time video.Rt-VBR service allows the network more flexibility  
than CBR.  
Quality of  
Service:  
Can be enabled only for UBR without PCR, UBR with PCR, and Non Realtime VPR.  
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Section 6 - Home  
This screen shows the types of network  
protocols and encapsulation modes that can  
be configured:  
• PPP over ATM (PPPoA)  
• PPP over Ethernet (PPPoE)  
• MAC Encapsulation Routing (MER)  
• IP over ATM (IpoA)  
• Bridging  
If you will be using VLAN tagging, click on the  
Enable 80ꢀ.1q checkbox and then enter the  
VLAN ID number. When finished with your  
selections, click Next to continue.  
Note: These settings are ISP dependant. For  
information regarding proper configuration,  
contact your ISP.  
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Section 6 - Home  
The following screen allows you to enter PPP username and password as well as make any selections regarding your  
connection.  
Dial on demand: Allows you to manually connect to the  
Internet so you are not permanently  
connected. Idle timeout timer is  
included.  
PPP IP extension: Used by some ISP’s.Check with your  
ISP to see if it is required.  
Keep alive: Keeps you connected to your ISP  
even when no activity is present for  
a certain period of time.  
Use static IP Select if you want to use a non-DHCP  
address: issued IP address to connect to the  
Internet. If selected, you will be asked  
to enter the static IP address.  
Note: These settings are ISP dependant. For  
information regarding proper configuration, contact  
your ISP.  
When finished, click Next to proceed to the NAT  
Settings screen.  
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Section 6 - Home  
This screen allows you to configure the Network Address Translation settings for the router.  
Enable NAT: Select enable if you wish to share one WAN IP  
address for multiple computers on your LAN.  
Enable Firewall:  
Select if you wish to enable the router’s firewall  
for security.  
Enable IGMP  
Multicast:  
Select enable if you wish to be able to provide  
multicasts, mostly used in video streaming.  
Enable WAN  
Service:  
Select if you wish to use WAN service and then  
set the service name.  
When finished, click the Next button and the following WAN  
summary screen will be displayed. This screen will outline  
all WAN settings for review. When satisfied with the settings  
click on the Apply button.  
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Section 6 - Home  
After you apply the configuration, it  
will return to the WAN Setup screen  
showing the new configuration. Select  
the Finish button to save the changes  
and reboot the router.  
When the router restarts the DSL  
Router Reboot screen will appear  
during the reboot process.  
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Section 6 - Home  
LAN  
You can configure the DSL Router IP address  
and Subnet Mask for the LAN interface.  
If you will be multicasting (e.g.video streaming)  
youcanenableIGMPsnooping.IGMPsnooping  
allows the router to efficiently determine where  
the multicast traffic came from and where  
it is headed. There are two IGMP snooping  
options: standard or blocking mode.  
If you want the DHCP server to automatically  
assign IP addresses, select enable DHCP  
server and enter the range of IP addresses that  
the DHCP server can assign. Select Disable  
DHCP server if you would like to manually  
assign IP addresses.  
The Save button only saves the LAN  
configuration data, but does not apply the  
configuration. Select the Save/Reboot button  
to save the LAN configuration data, reboot the  
router and apply the new configuration.  
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Section 6 - Home  
DNS  
DNS Server Configuration  
Use the DNS Server screen to request automatic  
assignment of a DNS or to specify a primary and  
secondary DNS.  
If you uncheck the Enable Automatic Assigned  
DNS checkbox, two additional fields will appear:  
primary and secondary DNS server. Enter one  
primary and one secondary DNS address in each  
field. Click Apply to save the configuration.  
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Section 6 - Home  
Dynamic DNS  
Dynamic DNS is a service for allowing an Internet domain name to be assigned to a changing IP address.This makes  
it possible for other sites on the Internet to establish connections to you without needing to track the IP address  
themselves.  
Click on Add to set up a dynamic DNS  
configuration.  
This screen allows you to add a dynamic DNS  
address from DynDNS.org or TZO. First select the  
DDNS provider (DynDNS.org or TZO) from which  
you have obtained a dynamic DNS address. Enter  
the hostname and the interface that you are using.  
Also enter the username and password assigned  
by the DNS service. Click on Apply to save these  
configurations.  
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Section 6 - Home  
Logout  
To log out of the router’s user interface at any time during the setup, click on the Logout button. A confirmation screen  
will appear confirming that you really want to log out.  
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Section 7 - Advanced Setup  
Advanced Setup  
This section of the setup is an advanced version of the quick setup. If you want to make specific configurations to your  
router such as creating a virtual server, DMZ, RIP, Quality of Service (QoS), etc., consider going through this advanced  
setup for a more comprehensive configuration.  
ADSL  
The ADSL settings page contains modulation and  
capability settings. Consult your ISP to determine the  
correct settings.Click Apply if you are finished or click  
on Advanced Settings if you want to configure more  
advanced settings.  
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Section 7 - Advanced Setup  
ADSL Settings  
The test mode can be selected from the ADSL Advanced Settings page. Test modes include normal, reverb, medley,  
no retrain, and L3. After you make your selection, click on Apply to save these settings first before you go to Tone  
Selection.  
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Section 7 - Advanced Setup  
ADSL Tone Settings  
The frequency band of ADSL is split into ꢀ56 separate tones, each spaced 4.31ꢀ5 kHz apart.Each tone carries separate  
data, so the router operates as if ꢀ56 separate routers were running in parallel. The tone range is from 0 to 31 for  
upstream and from 3ꢀ to ꢀ55 for downstream. Do not change these settings unless directed by your ISP.  
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Section 7 - Advanced Setup  
Virtual Server  
If you enable NAT (Network Address Translation), you can configure the Virtual Server, Port Triggering, and DMZ Host.  
NAT—Virtual Servers Setup  
A virtual server allows you to direct incoming traffic from the WAN side to a specific IP address on the LAN side. This  
is useful if you have software that requires communication with the Internet (e.g. peer-to-peer, games, etc.).  
This figure shows the Virtual Servers  
Setup page that allows you to configure  
your virtual server(s). Click on the Add  
button to configure a virtual server.  
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Section 7 - Advanced Setup  
Select a virtual server from the drop-down  
list and then enter the server IP address.  
The Server IP Address would normally be  
the IP address of the computer on your  
network which is using the application or  
game.  
See Networking Basics in the Appendix  
section of this manual to determine your  
IP address.  
Once you are satisfied with your selection,  
click Apply once.  
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Section 7 - Advanced Setup  
The following screen appears after you save your selection. To add additional virtual servers, click on the Add button.  
If you need to remove any of the server names, select the check box in the remove column and click on the Remove  
button.  
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Section 7 - Advanced Setup  
DMZ  
You can define the IP address of the DMZ Host on this  
screen.The DMZ is used to forward all IP packets coming  
into the router to a specified IP address. Enter the IP  
address and click Apply.  
SNMP  
SNMP(SimpleNetworkManagementProtocol)isanetwork  
protocol that provides a means to monitor the status and  
performance of the router, as well as make configuration  
changes. It enables a management station to configure,  
monitor and receive trap messages from network devices  
that are configured for SNMP.  
To configure the SNMP agent select Enable, Enter  
a Read Community, Set Community, System Name,  
Location, Contact, and the IP address of the Trap  
Manager. To save the configuration click Apply.  
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Section 7 - Advanced Setup  
Filter Outbound  
Outgoing IP Filtering Setup  
The outgoing filter will block the LAN traffic from  
entering the WAN side. Click on the Add button to  
create filters.  
This next screen will appear when you click Add.  
Enter the filter name, source information (from the  
LAN side), and destination information (from the  
WAN side). Then click Apply to save.  
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Section 7 - Advanced Setup  
The following screen will appear when you create  
an IP filter.This screen lists the IP filters that were  
added from the previous screen. To change your  
settings, click on the Add or Remove buttons.  
Filter Inbound  
Incoming IP Filtering Setup  
Incoming IP filter allows specified the WAN traffic  
to pass through the firewall. Click the Add button to  
add incoming filter settings.  
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Section 7 - Advanced Setup  
The Add IP Filter screen will appear when you click  
Add. Enter a filter name, protocol, source address  
information (from the WAN side) and destination  
address information (to the LAN side). Select the  
WAN interface and when ready, click Apply to add  
the filter.  
The following screen appears when you create  
an IP filter. The screen lists the IP filters that were  
added from the previous screen. To change your  
settings, click the Add or Remove buttons.  
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Section 7 - Advanced Setup  
Bridge Filters  
MAC Filtering Setup  
MAC filtering can forward or block traffic by MAC address.You can change the policy or add settings to the MAC filtering  
table using the MAC Filtering Setup screen.  
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Section 7 - Advanced Setup  
If you click Change Policy, a confirmation dialog  
allows you to verify your change. Select Yes to  
continue, or No to cancel.  
If you want to add an entry to the MAC filtering table,  
Select Add from the MAC Filtering Setup screen.The  
Add MAC Filter screen should then appear. Select a  
ProtocolType, enter the Destination and Source MAC  
address, the necessary Frame Direction, and WAN  
interface (bridge mode only). Click Apply to save.  
After you save the settings, a screen showing the settings will appear. On this screen you will be able to view and  
delete MAC filtering rules.  
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Section 7 - Advanced Setup  
Routing  
Routing - Static Route  
The Static Route page can be used to add a routing  
table (a maximum of 3ꢀ entries can be configured).  
To proceed, click Add.  
On the Static Route Add page, enter the destination  
network address, subnet mask, gateway and select  
an available WAN interface.When complete, click  
Apply.  
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Section 7 - Advanced Setup  
RIP  
RIP (Routing Information Protocol) is a process of moving a packet from one node to another by forwarding the packet  
to the next router. It determines a route based on the smallest hop count between source and destination routers.  
If RIP is enabled, the router operation can be  
configured as active or passive. Click Apply  
to save any changes.  
If RIP is set to active, the router will advertise  
its routes (reachability information) to others;  
if RIP is set to passive, the router will not  
advertise its routes, but will listen and  
update its routes based on other routers’  
advertisements.  
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Section 7 - Advanced Setup  
Quality of Service  
QoS (Quality of Service) is a method of identifying, classifying and assigning priorities to traffic that passes through  
the router. This ensures that time sensitive data (e.g. video streaming) is given priority over other non-essential data.  
You can configure the Quality of Service  
to apply different priorities to traffic on the  
router. Click Add to view the Add Network  
Traffic Class Rule screen.  
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Section 7 - Advanced Setup  
This screen allows you to add a network traffic class  
rule. A rule consists of a traffic class name and at least  
one condition. All configured conditions must first be  
met before the rule takes effect. Click Apply to save  
any changes.  
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Section 8 - Tools  
Tools  
The tools section contains various administrator functions to maintain your router. Sections include the following:  
Admin, Time, Remote Log, System, Firmware, and Test.  
• Admin: Allows you to change the password for the various user names available  
• Time: Allows you to set the router’s time  
• Remote Log: Allows you to view logs of the router’s activities  
• System: Allows you to perform functions such as save/reboot, backup, update settings, and restore  
default settings  
• Firmware: Allows you to upgrade your router with new available firmware versions  
Test: Allows you to view test information for your Internet connection  
Admin  
There are three usernames and passwords (admin,  
support, and user) that can be used to control your  
router. The passwords for these usernames can be  
changed on the Admin screen. Select the Username,  
enter the Old Password, enter a New Password, and  
then confirm the new password. When you are ready,  
click Apply at the bottom of the page.  
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Section 8 - Tools  
Time  
The Time Settings page allows you to automatically synchronize your time with a time server on the Internet.  
To set the router’s time, click on the automatically  
synchronize with Internet time servers checkbox.  
Addional time settings will appear below the  
checkbox.  
Select from the list of NTP (NetworkTime Protocol) time  
servers. Then select the time zone that you are in and  
click Apply to save.  
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Section 8 - Tools  
Remote Log  
The System Log screen allows you to view the system log and configure the system log options.  
To view the system log, click on the View System Log  
button.  
Note: When you click on the View System Log button,  
the System Log screen is located under the Status  
section (see screen on right). To return to the previous  
screen to configure system log, remember to click on  
the Tools tab (located on top row) first and then click  
on Remotelog.  
The System Log screen shows the date/time of the log,  
the facility that was logged, the severity level and the log  
message.Click on Refresh to view any new information  
that has been logged.  
System log when log is disabled.  
If the log is enabled, the system will log selected events  
including Emergency, Alert, Critical, Error, Warning,  
Notice, Informational, and Debugging. All events above  
or equal to the selected log level will be logged and  
displayed.  
System log when log is enabled.  
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Section 8 - Tools  
To configure the system log, click the Configure  
System Log button.  
From the configuration screen, set the log to  
Enable, select the Log Level, Display Level and  
Mode.If the selected mode isRemoteorBoth”,  
events will be sent to a specified IP address and  
UDP port of a remote system log server. If the  
selected mode is “Localor “Both”, events will be  
recorded and viewed locally. Select the desired  
values and click Apply to save the system log  
options.  
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Section 8 - Tools  
System  
The system section includes several tools on one page, including save and reboot, backup settings, update settings,  
and restore default settings.  
Save and Reboot  
The Save/Reboot button, when clicked, will save all configuration changes made on the router and restart the device.  
All new configuration settings will take effect when the router starts up again.  
Backup Settings  
The Backup Settings button allows you to save your router configuration to a file on your computer so that it may be  
accessed again later.This feature is useful if you have changed the configuration on the router, but would like to revert  
to a previous configuration.  
To save your current configuration, click the Backup  
Settings button. The following pop-up screen will  
appear with a prompt to open or save the file to your  
computer.  
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Section 8 - Tools  
Update Settings  
To load a previously saved configuration file onto your  
router, click Browse, select the file on your computer  
and then click on Update Settings.  
The router will restore settings and reboot to activate  
the restored settings.  
Restore Default Settings  
Restore Default Settings will delete all current settings and restore the router to factory default settings. Click on the  
Restore Default Settings button to proceed.The following confirmation dialog will appear confirming your decision to  
restore default settings. Click on OK to continue.  
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Section 8 - Tools  
Firmware  
If your ISP releases new software for this router, follow these steps to perform an upgrade.  
1. Obtain an updated software image file (firmware) from your ISP.  
ꢀ. Enter the path of the image file location or click the Browse button to locate the image file.  
3. Click the Update Software button once to upload the new image file.  
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Section 8 - Tools  
Test  
The diagnostics screen allows you to run diagnostic tests to check your DSL connection. The results will show test  
results of three connections:  
• Connection to your local network  
• Connection to your DSL service provider  
• Connection to your Internet service  
provider  
There are three buttons at the bottom of the  
page:  
• Next Connection (appears only if  
you have created more than one  
connection)  
Test  
Test with OAM F4  
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Section 9 - Status  
Status  
The status section allows you to view general and status information for your router’s connection.  
Device Info  
The Device Info page shows details of the router such  
as the version of the software, bootloader, LAN IP  
address, etc. It also displays the current status of your  
DSL connection.  
DHCP Clients  
Access the DHCP Leases screen by clicking DHCP  
under Status. This shows the computers, identified by  
the hostname and MAC address, that have acquired  
IP addresses by the DHCP server. The table will also  
show the time the DHCP lease will expire.  
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Section 9 - Status  
WAN Info  
The WAN Info screen displays WAN connections  
previously set up in the Home section. There is an extra  
“Status” column used for connection status information,  
displaying either ADSL Link Down or ADSL Link Up.  
Route Info  
The Route Info section displays route information  
showing the IP addresses of the destination, gateway,  
and subnet mask as well as other route information.  
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Section 9 - Status  
Log  
This is the same screen as seen in the Remotelog  
section under tools.  
LAN  
The LAN section shows received and transmitted packet information for the Ethernet interface.Click on Reset Statistics  
to renew the information.  
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Section 9 - Status  
WAN  
The WAN section shows received and transmitted packet information for the WAN connections that you have set up.  
Click on Reset Statistics to renew the information.  
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Section 9 - Status  
ADSL  
Information contained in the ADSL screen is useful for troubleshooting and diagnosing connection problems.  
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Section 9 - Status  
ADSL BER Test  
A Bit Error Rate Test (BER Test) is a test that reflects the ratio of error bits to the total number transmitted.  
If you click on the ADSL BERTest button at the bottom  
of the ADSL Statistics page, the following pop-up screen  
will appear allowing you to set the tested time and to  
begin the test. Click Start to begin the test.  
When you start the ADSL BER Test, the following  
progress window will display the connection speed as  
well as the length of time that the test will run for. At  
any time during the test, click on the Stop button to  
terminate the test.  
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Section 9 - Status  
When the test is complete, the following window will  
display the test results showing the test time, total  
transferred bits, total error bits and error ratio.Click Exit  
to close the window.  
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Troubleshooting  
This chapter provides solutions to problems that can occur during the installation and operation of the DSL-ꢀ540B.  
Read the following descriptions if you are having problems. (The examples below are illustrated in Windows® XP. If you  
have a different operating system, the screenshots on your computer will look similar to the following examples.)  
1. Why can’t I access the web-based configuration utility?  
When entering the IP address of the D-Link router (19ꢀ.168.1.1 for example), you are not connecting to a website on  
the Internet or have to be connected to the Internet.The device has the utility built-in to a ROM chip in the device itself.  
Your computer must be on the same IP subnet to connect to the web-based utility.  
• Make sure you have an updated Java-enabled web browser. We recommend the following:  
• Internet Explorer 6.0 or higher  
• Netscape 8 or higher  
• Mozilla 1.7.1ꢀ (5.0) or higher  
• Opera 8.5 or higher  
• Safari 1.ꢀ or higher (with Java 1.3.1 or higher)  
• Camino 0.8.4 or higher  
• Firefox 1.5 or higher  
• Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using  
a different cable or connect to a different port on the device if possible. If the computer is turned off, the link light may  
not be on.  
• Disable any Internet security software running on the computer. Software firewalls such as Zone Alarm, Black Ice,  
Sygate, Norton Personal Firewall, and Windows® XP firewall may block access to the configuration pages. Check the  
help files included with your firewall software for more information on disabling or configuring it.  
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• Configure your Internet settings:  
• Go to Start > Settings > Control Panel. Double-click the Internet Options Icon. From the Security tab,  
click the button to restore the settings to their defaults.  
• Click the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings  
button. Make sure nothing is checked. Click OK.  
• Go to the Advanced tab and click the button to restore these settings to their defaults. Click OK three  
times.  
• Close your web browser (if open) and open it.  
• Access the web management. Open your web browser and enter the IP address of your D-Link router in the  
address bar. This should open the login page for your the web management.  
• If you still cannot access the configuration, unplug the power to the router for 10 seconds and plug back in. Wait  
about 30 seconds and try accessing the configuration. If you have multiple computers, try connecting using a  
different computer.  
2. What can I do if I forgot my password?  
If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back  
to the factory defaults.  
To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use a  
paperclip to hold the button down for 10 seconds. Release the button and the router will go through its reboot process.  
Wait about 30 seconds to access the router. For information about logging into the router see page 1ꢀ.  
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Appendix A - Networking Basics  
Networking Basics  
Check your IP address  
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a  
DHCP server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below.  
Click on Start > Run. In the run box type cmd and click OK.  
At the prompt, type ipconfig and press Enter.  
This will display the IP address, subnet mask, and  
the default gateway of your adapter.  
If the address is 0.0.0.0, check your adapter  
installation, security settings, and the settings  
on your router. Some firewall software programs  
may block a DHCP request on newly installed  
adapters.  
If you are connecting to a wireless network at a hotspot (e.g. hotel, coffee shop, airport), please contact an employee  
or administrator to verify their wireless network settings.  
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Appendix A - Networking Basics  
Statically Assign an IP address  
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the  
steps below:  
Step 1  
Windows® XP - Click on Start > Control Panel > Network Connections.  
Windows® ꢀ000 - From the desktop, right-click My Network Places > Properties.  
Step 2  
Right-click on the Local Area Connection which represents your D-Link network adapter and select Properties.  
Step 3  
Highlight Internet Protocol (TCP/IP) and click Properties.  
Step 4  
Click Use the following IP address and enter an IP address that is on the same subnet as your network or the LAN  
IP address on your router.  
Example: If the router´s LAN IP address is 19ꢀ.168.0.1, make your IP address  
19ꢀ.168.0.X where X is a number between ꢀ and 99. Make sure that the number  
you choose is not in use on the network. Set Default Gateway the same as the LAN  
IP address of your router (19ꢀ.168.0.1).  
Set Primary DNS the same as the LAN IP address of your router (19ꢀ.168.0.1).The  
Secondary DNS is not needed or you may enter a DNS server from your ISP.  
Step 5  
Click OK twice to save your settings.  
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Appendix B - Contacting Technical Support  
Contacting Technical Support  
U.S. and Canadian customers can contact D-Link technical support through our web site or by phone.  
Before you contact technical support, please have the following ready:  
• Model number of the product (e.g. DSL-ꢀ540B)  
• Hardware Revision (located on the label on the bottom of the router (e.g. rev A1))  
• Serial Number (s/n number located on the label on the bottom of the router).  
You can find software updates and user documentation on the D-Link website as well as frequently asked questions  
and answers to technical issues.  
For customers within the United States:  
For customers within Canada:  
Phone Support:  
Phone Support:  
(877) 453-5465  
(800) 361-5ꢀ65  
Internet Support:  
Internet Support:  
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Appendix C - Warranty  
Warranty  
Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited Warranty:  
Only to the person or entity that originally purchased the product from D-Link or its authorized reseller or distributor, and  
Only for products purchased and delivered within the fifty states of the United States, the District of Columbia, U.S. Possessions or Protectorates, U.S. Military Installations, or addresses with an APO  
or FPO.  
Limited Warranty: D-Link warrants that the hardware portion of the D-Link product described below (“Hardware”) will be free from material defects in workmanship and materials under normal use from the  
date of original retail purchase of the product, for the period set forth below (“Warranty Period”), except as otherwise stated herein.  
Hardware (excluding power supplies and fans): One (1) year  
Power supplies and fans: One (1) year  
Spare parts and spare kits: Ninety (90) days  
The customer's sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at D-Link’s option, to repair or replace the defective Hardware during the  
Warranty Period at no charge to the original owner or to refund the actual purchase price paid. Any repair or replacement will be rendered by D-Link at an Authorized D-Link Service Office. The replacement  
hardware need not be new or have an identical make, model or part. D-Link may, at its option, replace the defective Hardware or any part thereof with any reconditioned product that D-Link reasonably  
determines is substantially equivalent (or superior) in all material respects to the defective Hardware. Repaired or replacement hardware will be warranted for the remainder of the original Warranty Period  
or ninety (90) days, whichever is longer, and is subject to the same limitations and exclusions. If a material defect is incapable of correction, or if D-Link determines that it is not practical to repair or replace  
the defective Hardware, the actual price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of the defective Hardware. All Hardware or part thereof  
that is replaced by D-Link, or for which the purchase price is refunded, shall become the property of D-Link upon replacement or refund.  
Limited Software Warranty: D-Link warrants that the software portion of the product (“Software”) will substantially conform to D-Link’s then current functional specifications for the Software, as set forth  
in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days (“Software Warranty Period”), provided that the Software is properly installed on  
approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the Software Warranty Period, the magnetic media on which D-Link delivers the Software will be  
free of physical defects. The customer’s sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at D-Link’s option, to replace the non-conforming  
Software (or defective media) with software that substantially conforms to D-Link’s functional specifications for the Software or to refund the portion of the actual purchase price paid that is attributable to the  
Software. Except as otherwise agreed by D-Link in writing, the replacement Software is provided only to the original licensee, and is subject to the terms and conditions of the license granted by D-Link for  
the Software. Replacement Software will be warranted for the remainder of the original Warranty Period and is subject to the same limitations and exclusions. If a material non-conformance is incapable of  
correction, or if D-Link determines in its sole discretion that it is not practical to replace the non-conforming Software, the price paid by the original licensee for the non-conforming Software will be refunded  
by D-Link; provided that the non-conforming Software (and all copies thereof) is first returned to D-Link. The license granted respecting any Software for which a refund is given automatically terminates.  
Non-Applicability of Warranty: The Limited Warranty provided hereunder for Hardware and Software portions of D-Link’s products will not be applied to and does not cover any refurbished product and any  
product purchased through the inventory clearance or liquidation sale or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product and in  
that case, the product is being sold “As-Is” without any warranty whatsoever including, without limitation, the Limited Warranty as described herein, notwithstanding anything stated herein to the contrary.  
Submitting A Claim: The customer shall return the product to the original purchase point based on its return policy. In case the return policy period has expired and the product is within warranty, the  
customer shall submit a claim to D-Link as outlined below:  
The customer must submit with the product as part of the claim a written description of the Hardware defect or Software nonconformance in sufficient detail to allow D-Link to confirm the same, along  
with proof of purchase of the product (such as a copy of the dated purchase invoice for the product) if the product is not registered.  
The customer must obtain a Case ID Number from D-Link Technical Support at 1-877-453-5465, who will attempt to assist the customer in resolving any suspected defects with the product. If the product  
is considered defective, the customer must obtain a Return Material Authorization (“RMA”) number by completing the RMA form and entering the assigned Case ID Number at https://rma.dlink.com/.  
After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit, and the RMA number  
must be prominently marked on the outside of the package. Do not include any manuals or accessories in the shipping package. D-Link will only replace the defective portion of the product and will  
not ship back any accessories.  
The customer is responsible for all in-bound shipping charges to D-Link. No Cash on Delivery (“COD”) is allowed. Products sent COD will either be rejected by D-Link or become the property of D-Link.  
Products shall be fully insured by the customer and shipped to D-Link Systems, Inc., 17595 Mt. Herrmann, Fountain Valley, CA 92708. D-Link will not be held responsible for any packages that are  
lost in transit to D-Link. The repaired or replaced packages will be shipped to the customer via UPS Ground or any common carrier selected by D-Link. Return shipping charges shall be prepaid by  
D-Link if you use an address in the United States, otherwise we will ship the product to you freight collect. Expedited shipping is available upon request and provided shipping charges are prepaid by  
the customer.  
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Appendix C - Warranty  
D-Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements, or for which an RMA number is not visible from the outside of the package. The  
product owner agrees to pay D-Link’s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements, or that is determined  
by D-Link not to be defective or non-conforming.  
What Is Not Covered: The Limited Warranty provided herein by D-Link does not cover: Products that, in D-Link’s judgment, have been subjected to abuse, accident, alteration, modification, tampering,  
negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered,  
tampered with, defaced or removed; Initial installation, installation and removal of the product for repair, and shipping costs; Operational adjustments covered in the operating manual for the product, and  
normal maintenance; Damage that occurs in shipment, due to act of God, failures due to power surge, and cosmetic damage; Any hardware, software, firmware or other products or services provided by  
anyone other than D-Link; and Products that have been purchased from inventory clearance or liquidation sales or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty  
obligation pertaining to the product. While necessary maintenance or repairs on your Product can be performed by any company, we recommend that you use only an Authorized D-Link Service Office.  
Improper or incorrectly performed maintenance or repair voids this Limited Warranty.  
Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED “AS-IS” WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER  
INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT BE  
DISCLAIMED INANY TERRITORY WHEREAPRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO THE DURATION OF THEAPPLICABLE WARRANTY PERIOD  
SET FORTH ABOVE. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF  
THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT.  
Limitation of Liability: TO THE MAXIMUM EXTENT PERMITTED BY LAW, D-LINK IS NOT LIABLE UNDER ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE  
THEORY FOR ANY LOSS OF USE OF THE PRODUCT, INCONVENIENCE OR DAMAGES OF ANY CHARACTER, WHETHER DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL (INCLUDING,  
BUT NOT LIMITED TO, DAMAGES FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT, WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, FAILURE OF OTHER EQUIPMENT  
OR COMPUTER PROGRAMS TO WHICH D-LINK’S PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATA CONTAINED IN, STORED ON, OR INTEGRATED WITH ANY PRODUCT  
RETURNED TO D-LINK FOR WARRANTY SERVICE) RESULTING FROM THE USE OF THE PRODUCT, RELATING TO WARRANTY SERVICE, OR ARISING OUT OF ANY BREACH OF THIS LIMITED  
WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR,  
REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON-CONFORMING PRODUCT. THE MAXIMUM LIABILITY OF D-LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE  
OF THE PRODUCT COVERED BY THE WARRANTY. THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR  
REMEDIES, EXPRESS, IMPLIED OR STATUTORY.  
Governing Law: This Limited Warranty shall be governed by the laws of the State of California. Some states do not allow exclusion or limitation of incidental or consequential damages, or limitations on  
how long an implied warranty lasts, so the foregoing limitations and exclusions may not apply. This Limited Warranty provides specific legal rights and you may also have other rights which vary from state  
to state.  
Trademarks: D-Link is a registered trademark of D-Link Systems, Inc. Other trademarks or registered trademarks are the property of their respective owners.  
Copyright Statement: No part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation,  
transformation, or adaptation without permission from D-Link Corporation/D-Link Systems, Inc., as stipulated by the United States Copyright Act of 1976 and any amendments thereto. Contents are subject  
to change without prior notice. Copyright 2006 by D-Link Corporation/D-Link Systems, Inc. All rights reserved.  
CE Mark Warning: This is a Class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.  
FCC Statement: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable  
protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,  
may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio  
or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
For detailed warranty information applicable to products purchased outside the United States, please contact the corresponding local D-Link office.  
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Appendix D - Registration  
Registration  
Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty  
rights.  
Version 1.0  
September ꢀ6, ꢀ006  
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