D Link DSL2640R Wireless ADSL2+ Router User Manual DSL 2640R manual 005 20070926
D Link Corporation Wireless ADSL2+ Router DSL 2640R manual 005 20070926
  
    D Link   >  
Contents
- 1. Part 1
 - 2. Part 2
 
Part 1

FCC Notices 
This device complies with Part 15 of the FCC Rules. Operation is subject to the following 
two conditions: (1) this device may not cause harmful interference, and (2) this device 
must accept any interference received, including interference that may cause undesired 
operation. 
CAUTION: Change or modification not expressly approved by the party responsible 
for compliance could void the user’s authority to operate this equipment. 
        This  equipment  has  been  tested  and  found to comply with the limits for a Class B 
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a residential installation. This 
equipment generates, uses and can radiate radio frequency energy and, if not installed 
and used in accordance with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to radio or 
television reception, which can be determined by turning the equipment off and on, the 
user is encouraged to try to correct the interference by one 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. 
CAUTION: 
Any changes or modifications not expressly approved by the grantee of this device could 
void the user's authority to operate the equipment.  
RF exposure warning: 
The equipment complies with FCC RF exposure limits set forth for an uncontrolled 
environment.  The equipment must not be co-located or operating in conjunction with any 
other antenna or transmitter.  

Table of Contents
PACKAGE CONTENTS .......................................................................................... 1 
SYSTEM REQUIREMENTS..................................................................................... 1 
FEATURES .......................................................................................................... 2 
LEDs............................................................................................................. 4 
INSTALLATION .................................................................................................... 5 
BEFORE YOU BEGIN............................................................................................ 5 
INSTALLATION NOTES .......................................................................................... 5 
DEVICE INSTALLATION ......................................................................................... 9 
Power on Router ........................................................................................ 10 
Factory Reset Button.................................................................................. 10 
Network Connections ..................................................................................11 
SETUP ................................................................................................................ 12 
Web-based Configuration Utility................................................................. 12 
CONFIGURE THE ROUTER.................................................................................. 13 
QUICK START.................................................................................................... 14 
INTERFACE SETUP............................................................................................. 19 
PPPoE/PPPoA ........................................................................................... 20 
Dynamic IP Address................................................................................... 22 
Static IP Address ........................................................................................ 23 
Bridge Mode............................................................................................... 24 
LAN SETUP ...................................................................................................... 25 
Use the Router for DHCP........................................................................... 26 
Disable the DHCP Server........................................................................... 26 
Use DHCP Relay........................................................................................ 26 
WIRELESS SETUP ............................................................................................. 27 
BASIC WIRELESS .............................................................................................. 28 
WEP ENCRYPTION............................................................................................ 29 
WPA SETTINGS ................................................................................................ 30 
ADVANCED SETUP............................................................................................. 31 
ACCESS MANAGEMENT.................................................................................. 42 
MAINTENTANCE................................................................................................ 48 
PASSWORD....................................................................................................... 48 
FIRMWARE UPDATE ........................................................................................... 50 
RESET/RESTART SYSTEM .............................................................................. 51 
DIAGNOSTICS ................................................................................................... 52 
STATUS............................................................................................................... 53 
SYSTEM LOG..................................................................................................... 54 
STATISTICS ....................................................................................................... 55 
TROUBLESHOOTING........................................................................................ 56 
NETWORKING BASICS.....................................................................................58 
CHECK YOUR IP ADDRESS................................................................................. 58 
STATICALLY ASSIGN AN IP ADDRESS................................................................... 59 
TECHNICAL SPECIFICATIONS.........................................................................60 

Section 1 - Product Overview 
D-Link DSL-2640R User Manual                            1
Package Contents 
• DSL-2640R Wireless ADSL Router 
• Power Adapter  
•  CD-ROM with User Manual   
•  One twisted-pair telephone cable used for ADSL connection   
•  One straight-through Ethernet cable 
•  One Quick Installation Guide   
Note: Using a power supply with a different voltage rating than the one included 
with the DSL-2640R will cause damage and void the warranty for this product. 
 System Requirements 
•  ADSL Internet service 
• Computer with: 
• 200MHz Processor 
• 64MB Memory 
• CD-ROM Drive 
• Ethernet Adapter with TCP/IP Protocol Installed 
• Internet Explorer v6 or later, FireFox v1.5 
•  Computer with Windows 2000, Windows XP, or Windows Vista 
•  D-Link Click'n Connect Utility 

Section 1 - Product Overview 
D-Link DSL-2640R User Manual                            2
11  Features 
• PPP (Point-to-Point Protocol) Security – The DSL-2640R ADSL Router supports PAP (Password Authentication Protocol) and CHAP 
(Challenge Handshake Authentication Protocol) for PPP connections. The Router also supports MSCHAP. 
• DHCP Support – Dynamic Host Configuration Protocol automatically and dynamically assigns all LAN IP settings to each host on your 
network. This eliminates the need to reconfigure every host whenever changes in network topology occur. 
• Network Address Translation (NAT) – For small office environments, the DSL-2640R allows multiple users on the LAN to access the 
Internet concurrently through a single Internet account. This provides Internet access to everyone in the office for the price of a single user. 
NAT improves network security in effect by hiding the private network behind one global and visible IP address. NAT address mapping can 
also be used to link two IP domains via a LAN-to-LAN connection. 
• TCP/IP (Transfer Control Protocol/Internet Protocol) – The DSL-2640R supports TCP/IP protocol, the language used for the Internet. It is 
compatible with access servers manufactured by major vendors. 
• RIP-1/RIP-2 – The DSL-2640R supports both RIP-1 and RIP-2 exchanges with other routers. Using both versions lets the Router to 
communicate with all RIP enabled devices. 
• Static Routing – This allows you to select a data path to a particular network destination that will remain in the routing table and never “age 
out”. If you wish to define a specific route that will always be used for data traffic from your LAN to a specific destination within your LAN (for 
example to another router or a server) or outside your network (to an ISP defined default gateway for instance).     
• Default Routing – This allows you to choose a default path for incoming data packets for which the destination address is unknown. This is 
particularly useful when/if the Router functions as the sole connection to the Internet. 
• Precise ATM Traffic Shaping – Traffic shaping is a method of controlling the flow rate of ATM data cells. This function helps to establish the 
Quality of Service for ATM data transfer. 
• Full Network Management – The DSL-2640R incorporates SNMP (Simple Network Management Protocol) support for web-based 
management and text-based network management. 
• Easy Installation – The DSL-2640R uses a web-based graphical user interface program for convenient management access and easy set 
up. Any common web browser software can be used to manage the Router. 

Section 1 - Product Overview 
D-Link DSL-2640R User Manual                            3
Power Insert 
Use the adapter shipped with the 
Router to connect to power 
source 
Power Button
Push in to power-on the Router. 
Push again to power-off the 
Router 
Ethernet Ports 
Use the Ethernet ports to connect 
the Router to a computer or an 
Ethernet LAN 
ADSL Port 
Use the ADSL cable to connect to 
the your telephone line (RJ-11 port)
Reset Button 
To manually reset, depress 
button with the power on for at 
least seven seconds 
Hardware Overview 
Connections 

Section 1 - Product Overview 
D-Link DSL-2640R User Manual                            4
Hardware Overview 
LEDs 
Power 
Steady green light indicates the unit is powered on. 
This remains dark when power is off. A red colored 
Power LED indicates system failure. 
Internet 
A solid green light indicates the WAN IP address from IPCP or 
DHCP and DSL is up or a static IP address is configured and 
PPP negotiation has been successfully completed. If the 
indicator blinks green, this means the Router is active. If the 
Router power is off, this remains dark. A solid red light indicates 
there is no DHCP response, no PPPoE response, PPPoE 
authentication has failed, and/or there is no IP.
DSL 
A steady green light indicates a 
valid ADSL connection. This will 
light after the ADSL negotiation 
process has been settled. A 
blinking green light indicates 
activity on the WAN (ADSL) 
interface. 
LAN  
A solid green light indicates a valid link on 
startup. This light will blink when there is activity 
currently passing through the Ethernet port. 
WLAN 
Steady green light indicates a 
wireless connection. A blinking 
green light indicates activity on 
the Wireless LAN interface. 

Section 2 – Installation 
D-Link DSL-2640R User Manual                            5
Installation 
This section will walk you through the installation process. Placement of the Wireless ADSL Router is very important. Do not place the Router in an 
enclosed area such as a closet, cabinet, or in the attic or garage. Place the Wireless ADSL Router in a location where it can be easily connected to 
Ethernet devices, the telephone line as well as to a power source. 
 Before You Begin 
Please read and make sure you understand all the prerequisites for proper installation of your new Router. Have all the necessary information and 
equipment on hand before beginning the installation. 
 Installation Notes 
In order to establish a connection to the Internet it will be necessary to provide information to the Router that will be stored in its memory. For some 
users, only their account information (Username and Password) is required. For others, various parameters that control and define the Internet 
connection will be required. You can print out the two pages below and use the tables to list this information. This way you have a hard copy of all 
the information needed to setup the Router. If it is necessary to reconfigure the device, all the necessary information can be easily accessed. Be 
sure to keep this information safe and private. 
Low Pass Filters 
Since ADSL and telephone services share the same copper wiring to carry their respective signals, a filtering mechanism may be necessary to 
avoid mutual interference. A low pass filter device can be installed for each telephone that shares the line with the ADSL line. These filters are easy 
to install passive devices that connect to the ADSL device and/or telephone using standard telephone cable. Ask your service provider for more 
information about the use of low pass filters with your installation.   
Operating Systems 
The DSL-2640R uses an HTML-based web interface for setup and management. The web configuration manager may be accessed using any 
operating system capable of running web browser software, including Windows 98 SE, Windows ME, Windows 2000, Windows XP, and Windows 
Vista.  

Section 2 – Installation 
D-Link DSL-2640R User Manual                            6
Web Browser 
Any common web browser can be used to configure the Router using the web configuration management software. The program is designed to 
work best with more recently released browsers such as Opera, Microsoft Internet Explorer® version 6.0, Netscape Navigator® version 6.2.3, or 
later versions. The web browser must have JavaScript enabled. JavaScript is enabled by default on many browsers. Make sure JavaScript has not 
been disabled by other software (such as virus protection or web user security packages) that may be running on your computer. 
Ethernet Port (NIC Adapter) 
Any computer that uses the Router must be able to connect to it through the Ethernet port on the Router. This connection is an Ethernet connection 
and therefore requires that your computer be equipped with an Ethernet port as well. Most notebook computers are now sold with an Ethernet port 
already installed. Likewise, most fully assembled desktop computers come with an Ethernet NIC adapter as standard equipment. If your computer 
does not have an Ethernet port, you must install an Ethernet NIC adapter before you can use the Router. If you must install an adapter, follow the 
installation instructions that come with the Ethernet NIC adapter.   
Additional Software 
It may be necessary to install software on your computer that enables the computer to access the Internet. Additional software must be installed if 
you are using the device a simple bridge. For a bridged connection, the information needed to make and maintain the Internet connection is stored 
on another computer or gateway device, not in the Router itself.   
If your ADSL service is delivered through a PPPoE or PPPoA connection, the information needed to establish and maintain the Internet connection 
can be stored in the Router. In this case, it is not necessary to install software on your computer. It may however be necessary to change some 
settings in the device, including account information used to identify and verify the connection. 
All connections to the Internet require a unique global IP address. For bridged connections, the global IP settings must reside in a TCP/IP enabled 
device on the LAN side of the bridge, such as a PC, a server, a gateway device such as a router or similar firewall hardware. The IP address can be 
assigned in a number of ways. Your network service provider will give you instructions about any additional connection software or NIC 
configuration that may be required. 
Wireless LAN 
Computers using the Wireless network can access the Internet or use the embedded 802.1g wireless access point. Wireless workstations must 
have an 802.1g or 802.1b wireless network card installed to use the Wireless ADSL Router. In addition the workstations must be configured to 
operate on the same channel and SSID as the Wireless ADSL Router. If wireless security is used, the wireless workstations must be properly 
configured for the security settings used. 

Section 2 – Installation 
D-Link DSL-2640R User Manual                            7
Information you will need from your ADSL service 
provider 
Username 
This is the Username used to log on to your ADSL service provider’s network. Your ADSL service provider uses this to identify your account. 
Password 
This is the Password used, in conjunction with the Username above, to log on to your ADSL service provider’s network. This is used to verify the 
identity of your account. 
WAN Setting / Connection Type 
These settings describe the method your ADSL service provider uses to transport data between the Internet and your computer. Most users will use 
the default settings. You may need to specify one of the following WAN Setting and Connection Type configurations (Connection Type settings listed 
in parenthesis):   
•  PPPoE/PPoA (PPPoE LLC, PPPoA LLC or PPPoA VC-Mux) 
•  Dynamic IP Address (1483 Bridged IP LLC, 1483 Bridged IP VC-Mux, 1483 Routed IP LLC(IPoA) or 1483 Routed IP VC-Mux)     
•  Static IP Address (1483 Bridged IP LLC, 1483 Bridged IP VC-Mux, 1483 Routed IP LLC(IPoA) or 1483 Routed IP VC-Mux)     
•  Bridge Mode (1483 Bridged IP LLC or 1483 Bridged IP VC Mux) 
Modulation Type 
ADSL uses various standardized modulation techniques to transmit data over the allotted signal frequencies. Some users may need to change the 
type of modulation used for their service. The default DSL modulation (ADSL2+ Multi-Mode) used for the Router automatically detects all types of 
ADSL, ADSL2, and ADSL2+ modulation.   
Security Protocol 
This is the method your ADSL service provider will use to verify your Username and Password when you log on to their network. Your Router 
supports the PAP and CHAP protocols. 

Section 2 – Installation 
D-Link DSL-2640R User Manual                            8
VPI 
Most users will not be required to change this setting. The Virtual Path Identifier (VPI) is used in conjunction with the Virtual Channel Identifier (VCI) 
to identify the data path between your ADSL service provider’s network and your computer. If you are setting up the Router for multiple virtual 
connections, you will need to configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can 
be changed in the WAN Settings window of the web management interface.   
VCI 
Most users will not be required to change this setting. The Virtual Channel Identifier (VCI) used in conjunction with the VPI to identify the data path 
between your ADSL service provider’s network and your computer. If you are setting up the Router for multiple virtual connections, you will need to 
configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can be changed in the WAN 
Settings window of the web management interface.   
 Information you will need about DSL-2640R 
Username  
This is the Username needed access the Router’s management interface. When you attempt to connect to the device through a web browser you 
will be prompted to enter this Username. The default Username for the Router is “admin.” The user cannot change this.   
Password 
This is the Password you will be prompted to enter when you access the Router’s management interface. The default Password is “1234.” The user 
may change this.   
LAN IP addresses for the DSL-2640R 
This is the IP address you will enter into the Address field of your web browser to access the Router’s configuration graphical user interface (GUI) 
using a web browser. The default IP address is 192.168.1.1. This may be changed to suit any IP address scheme the user desires. This address will 
be the base IP address used for DHCP service on the LAN when DHCP is enabled.   
LAN Subnet Mask for the DSL-2640R 
This is the subnet mask used by the DSL-2640R, and will be used throughout your LAN. The default subnet mask is 255.255.255.0. This can be 
changed later.   

Section 2 – Installation 
D-Link DSL-2640R User Manual                            9
Information you will need about your LAN or computer: 
Ethernet NIC 
If your computer has an Ethernet NIC, you can connect the DSL-2640R to this Ethernet port using an Ethernet cable. You can also use the Ethernet 
ports on the DSL-2640R to connect to other computer or Ethernet devices. 
DHCP Client status 
Your DSL-2640R ADSL Router is configured, by default, to be a DHCP server. This means that it can assign an IP address, subnet mask, and a 
default gateway address to computers on your LAN. The default range of IP addresses the DSL-2640R will assign are from 192.168.1.2 to 
192.168.1.254. Your computer (or computers) needs to be configured to obtain an IP address automatically (that is, they need to be configured as 
DHCP clients.)     
It is recommended that you collect and record this information here, or in some other secure place, in case you have to re-configure your ADSL 
connection in the future. 
Once you have the above information, you are ready to setup and configure your DSL-2640R ADSL Router. 
 Device Installation 
The Wireless ADSL Router maintains three separate interfaces, an ADSL, an Ethernet, and a Wireless LAN interface. Place the Wireless ADSL 
Router in a location where it can be easily connected to Ethernet devices, the telephone line as well as to a power source. 
The Router can be placed on a shelf or desktop, ideally you should be able to see the LED indicators on the front if you need to view them for 
troubleshooting. 

Section 2 – Installation 
D-Link DSL-2640R User Manual                           10
Power on Router 
The Router must be used with the power adapter included with the device. 
 1.  Connect the power adapter to the Power Input (12V AC 1.2A) on the back panel of the Wireless ADSL Router and plug the other end of the 
power adapter to a wall outlet or power strip. 
2. Push the Power Button toggle the power on. 
3. The Power LED on the front panel will shine bright green to indicate the device is powered on. 
4.  If the Ethernet port is connected to a working device, check the LAN LED indicator to make sure the connection is valid. The Wireless ADSL 
Router will attempt to establish the ADSL connection, if the ADSL line is connected and the Wireless ADSL Router is properly configured the 
ADSL LED will light up after several seconds. If this is the first time installing the device, some settings may need to be changed before the 
Wireless ADSL Router can establish a connection.     
 Factory Reset Button 
The Router may be reset to the original factory default settings by using a ballpoint or paperclip to gently push down the reset button in the following 
sequence:  
1.  Press and hold the reset button while the device is powered off. 
2.  Turn on the power. 
3.  Wait for 5~8 seconds and then release the reset button.   
Remember that this will wipe out any settings stored in flash memory including user account information and LAN IP settings. The device settings 
will be restored to the factory default IP address 192.168.1.1 and the subnet mask is 255.255.255.0, the default management Username is “admin” 
and the default Password is “admin.”   

Section 2 – Installation 
D-Link DSL-2640R User Manual                           11
Network Connections 
Connect ADSL Line 
Use the ADSL cable included with the Router to connect it to a telephone wall socket or receptacle. Plug one end of the cable into the ADSL port 
(RJ-11 receptacle) on the rear panel of the Router and insert the other end into the RJ-11 wall socket. If you are using a low pass filter device, follow 
the instructions included with the device or given to you by your service provider. The ADSL connection represents the WAN interface, the 
connection to the Internet. It is the physical link to the service provider’s network backbone and ultimately to the Internet.   
Connect Router to Ethernet   
The Router may be connected to a single computer or Ethernet device through the 10BASE-TX Ethernet port on the rear panel. Any connection to 
an Ethernet concentrating device such as a switch or hub must operate at a speed of 10/100 Mbps only. When connecting the Router to any 
Ethernet device that is capable of operating at speeds higher than 10Mbps, be sure that the device has auto-negotiation (NWay) enabled for the 
connecting port. Use standard twisted-pair cable with RJ-45 connectors. The RJ-45 port on the Router is a crossed port (MDI-X). Follow standard 
Ethernet guidelines when deciding what type of cable to use to make this connection. When connecting the Router directly to a PC or server use a 
normal straight-through cable. You should use a crossed cable when connecting the Router to a normal (MDI-X) port on a switch or hub. Use a 
normal straight-through cable when connecting it to an uplink (MDI-II) port on a hub or switch. The rules governing Ethernet cable lengths apply to 
the LAN to Router connection. Be sure that the cable connecting the LAN to the Router does not exceed 100 meters. 
Hub or Switch to Router Connection 
Connect the Router to an uplink port (MDI-II) on an Ethernet hub or switch with a straight-through cable. If you wish to reserve the uplink port on the 
switch or hub for another device, connect to any on the other MDI-X ports (1x, 2x, etc.) with a crossed cable. 
Computer to Router Connection 
You can connect the Router directly to a 10/100BASE-TX Ethernet adapter card (NIC) installed on a PC using the Ethernet cable provided. 
Wireless Connection to Router 
The Router’s embedded 802.11g wireless access point should be configured to suit the local wireless network. All 802.11g or 802.11b devices that 
associate with the Router’s wireless access point must have the same SSID and channel. If wireless security is used, the wireless clients must be 
configured with the correct security information to use the Router. More information on configuring the wireless settings is found later in this manual. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           12
Setup 
This section will show you how to set up and configure your new D-Link Router using the Web-based configuration utility. 
 Web-based Configuration Utility 
Connect to the Router   
To configure the WAN connection used by the Router it is first necessary to communicate with the Router through its management interface, which 
is HTML-based and can be accessed using a web browser. The easiest way to make sure your computer has the correct IP settings is to configure 
it to use the DHCP server in the Router. The next section describes how to change the IP configuration for a computer running a Windows operating 
system to be a DHCP client. 
To access the configuration utility, open a web-browser such as Internet 
Explorer and enter the IP address of the router (192.168.1.1). 
Type “admin” for the User Name and “1234” in the Password field. If you 
get a Page Cannot be Displayed error, please refer to the 
Troubleshooting section for assistance. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           13
Configure the Router 
When you successfully connect to the web manager, the main Status 
menu displays a summary of the current state of the Ethernet LAN and 
WAN networks. This menu can be accessed at any time using the Status 
hyperlink. 
All configuration and management of the Router is done using the 
web-based management interface pictured in the example.   
To access the various configuration menus, open the directories listed in 
the left panel of the menu, Quick Start, Interface Setup, Advanced 
Setup, Access Management, Maintenance, and Status.   
The Quick Start Wizard allows you to configure the basic settings for the 
WAN (Internet) and Ethernet LAN (including DHCP) settings. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           14
Quick Start 
This chapter is concerned with using your computer to configure the WAN connection. The following chapter describes the various windows used to 
configure and monitor the Router including how to change IP settings and DHCP server setup. 
Quick Start 
To use the Quick Start Wizard, click the RUN WIZARD button and follow 
the instructions in the pop-up window that appears. 
The initial window summarizes the setup process. Click the Next button to 
proceed. You may stop using the Quick Start Wizard at any time by 
clicking the Exit button. If you exit the wizard you will return to the main 
Quick Start window without saving any of the settings changed during the 
process. 
Quick Start Wizard – Opening Window 
The first pop-up window of the Quick Start Wizard lists the basic steps in 
the process. These steps are as follows:   
1.  Set your new password 
2.  Choose your time zone 
3.  Set your Internet connection   
4.  Re-start your ADSL router 
Click Next to continue.   

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           15
Quick Start Wizard – Set a Password 
If you want to change the administrator account password, enter a new 
password in the first text box, re-type it in the second text box, and click 
Next. If you wish to return to the previous window during the setup 
process, click the Back button. 
Quick Start Wizard - Choose Time Zone 
Choose the time zone you are in from the pull-down menu and click Next. 
This sets the system time used for the Router. If you wish to return to the 
previous window during the setup process, click the Back button. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           16
Quick Start Wizard – Select ISP Connection Type 
Now select the Connection Type used for the Internet connection. Your 
ISP has given this information to you. The connection types available are 
Dynamic IP Address, Static IP Address, PPPoE/PPPoA, and Bridge 
Mode. Each connection type has different settings that are configured in 
the next Quick Start Wizard window. 
Select the Connection Type specific to your service and click Next to go 
to the next Quick Start Wizard window. Follow the instructions below for 
the type of connection you have selected. 
Quick Start Wizard - For PPPoE/PPPoA connections:   
1. Type in the Username and Password used to identify and verify 
your account to the ISP.   
2.  If you are instructed to change the VPI or VCI number, type in the 
correct setting in the available entry fields. Most users will not need 
to change these settings. The Internet connection cannot function if 
these values are incorrect. 
3. Select the specific Connection Type from the drop-down menu. 
The available PPP connection and encapsulation types are PPPoE 
LLC, PPPoE VC-Mux, PPPoA LLC, and PPPoA VC-Mux. 
4. Click Next to go to the next window and complete the Quick Start 
Wizard. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           17
Quick Start Wizard - For Dynamic IP Address connections: 
1.  If you are instructed to change the VPI or VCI number, type in the 
correct setting in the available entry fields. Most users will not need 
to change these settings. The Internet connection cannot function if 
these values are incorrect. 
2. Select the specific Connection Type from the drop-down menu. 
The available Dynamic IP Address connection and encapsulation 
types are 1483 Bridged IP LLC, 1483 Bridged IP VC-Mux, 1483 
Routed IP LLC (IPOA), and 1483 Routed IP VC-Mux. 
3. Click Next to go to the next pop-up window and complete the Quick 
Start Wizard. 
Quick Start Wizard - For Static IP Address connections: 
1.  If you are instructed to change the VPI or VCI number, type in the 
correct setting in the available entry fields. Most users will not need 
to change these settings. The Internet connection cannot function if 
these values are incorrect. 
2. Change the IP Address, Subnet Mask, and ISP Gateway as 
instructed by your ISP.   
3. Select the specific Connection Type from the drop-down menu. 
The available Static IP Address connection and encapsulation 
types are 1483 Bridged IP LLC, 1483 Bridged IP VC-Mux, 1483 
Routed IP LLC (IPoA), and 1483 Routed IP VC-Mux. 
4. Click Next to go to the next window and complete the Quick Start 
Wizard. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           18
Quick Start Wizard - For Bridge Mode connections: 
1.  If you are instructed to change the VPI or VCI number, type in the 
correct setting in the available entry fields. Most users will not need 
to change these settings. The Internet connection cannot function if 
these values are incorrect. 
2. Select the specific Connection Type from the drop-down menu. 
The available Bridge Mode connection and encapsulation types 
are 1483 Bridged IP LLC and 1483 Bridged IP VC-Mux. 
3. Click Next to go to the next window and complete the Quick Start 
Wizard. 
Quick Start Wizard - Finish   
Finally, if you are satisfied that you have entered all the necessary 
information correctly, click the Next button to save the new configuration 
settings. If you need to change settings from a previous window, click the 
Back button. 
Click the Close button to complete the Quick Start setup procedure. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           19
Interface Setup 
To configure the Router’s basic Internet and LAN configuration settings without running the Quick Start Wizard, click on the Interface Setup link in 
the Wireless ADSL Router’s opening page.   
This window is also used to configure the Router for multiple virtual connections (Multiple PVCs). 
Use the Virtual Circuit drop-down menu to display up to eight 
configurable profiles for the Internet interface. If you do not intend to use 
more than a single virtual connection (most users), you can use the 
default setting (PVC0). If you are using multiple connections, use the 
Virtual Circuit drop-down menu to access the Interface Setup window 
for each desired connection. To change the settings for any profile in the 
list, use the Virtual Circuit drop-down menu to display individual profiles 
or click the PVCs Summary button to display the following summary of all 
the profiles for the Internet interface. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           20
PPPoE/PPPoA 
To set up a PPPoE or PPPoA connection: 
1. Choose the PPPoA/PPPoE option under ISP in the Encapsulation 
section.  
2.  Most users will not need to change ATM settings in the ATM VC section. 
If this is the first time you are setting up the ADSL connection it is 
recommended that you leave the ATM QoS type and associated Cell 
Rate settings at the default values until you have established the 
connection and verified that your ISP supports ATM for your ADSL 
account. However, if you are instructed to change the VPI or VCI values, 
type in the values assigned for your account. Leave the Virtual Circuit 
and Status settings at the defaults (Pcv0 and Activated) values for now. 
These can be used later if you are configuring multiple virtual circuits for 
your ADSL service. 
3.  Most users will not need to change QoS settings. If this is the first time 
you are setting up the ADSL connection it is recommended that you leave 
the settings at the default values until you have established the 
connection. Please see the table on ATM QoS in the next section of this 
manual for further information. 
4. In the PPPoE/PPPoA section, type the Username and Password used 
for your ADSL account. A typical User Name will be in the form 
user1234@isp.co.uk. Your ISP may assign the Password to you or you 
may have selected it when you set up the account with your ISP. 
5. Choose the Encapsulation setting from the pull-down menu. This 
defines the encapsulation method used for your ADSL service. The 
available options are PPPoE LLC, PPPoE VC-Mux, PPPoA LLC, and 
PPPoA VC-Mux. If you have not been provided specific information for 
this section, leave the default setting. 
Follow the instructions to configure the Router to use a PPPoA or PPPoE for the 
Internet connection. Make sure you have all the necessary information before you 
configure the Internet (WAN) connection. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           21
 6.  Activate or Deactivate the Bridge Interface.  
7. Select the correct Connection value in the Connection Setting section. 
If your account is time-based, that is, if your connection fees are based 
on the amount of time the Router is actively connected to the Internet, 
select the Connect On-Demand option and enter an appropriate idle 
timeout in the entry field provided. If your account is billed with a flat fee 
regardless of how much time the Router is connected, select the Always 
On option. This will maintain the PPP session as long as the Router is 
powered on. 
8. The TCP MSS option can be used when excessive fragmentation of 
packets effect download speeds. Enter a value for the Maximum 
Segment Size to avoid fragmenting TCP packets 
9.  Typically the globally IP settings (i.e. IP address for the WAN interface) 
for a PPPoA or PPPoA connection will use Dynamic IP assignment from 
the ISP. Some accounts may be assigned a specific global IP address. If 
you have been give an IP address for you PPPoE/PPPoA connection, 
select the Static option from the Get IP Address pull-down menu and 
enter the Static IP Address, IP Subnet Mask, and Gateway information.
10. NAT should remain Enabled. If you disable NAT, you will not be able to 
use more than one computer for Internet connections. NAT is Enabled 
and Disabled system-wide, therefore if you are using multiple virtual 
connections, NAT will disabled on all connections.   
11. Turn on the Default Route feature if you want to use the Router as the 
default route to the Internet for your LAN. Whenever a computer on the 
LAN attempts to access the Internet, the Router becomes the Internet 
gateway to the computer. If you have an alternative route for Internet 
traffic you may turn this off without effecting the Router’s connection. 
12. Leave the TCP MTU Option value at the default setting unless you have 
specific reasons to change this. 
13. Select the desired Dynamic Route from RIP1, RIP2-B, or RIP2-M. Next, 
set the Direction to Both, IN Only, OUT Only, or None.  
14. The Multicast feature is Disabled by default. Toggle between IGMP v1 
and IGMP v2. 
15. When you are satisfied that all the Internet settings are configured 
correctly, click on the SAVE button. 
When PPPoE or PPPoA is used, the Router becomes the PPP client, that is, all the 
software needed to establish and maintain the connection is located on the Router. 
ISPs frequently require PPP client software to be installed on workstations. If any 
computers have PPP client software installed on them, this software must be 
removed or at least disabled before the computers are able to connect to the 
Internet through the Router. If you are required to provide a User Name and 
Password every time you access the Internet, your computer may have PPP client 
software installed on it. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           22
Dynamic IP Address 
To configure a Dynamic IP Address WAN connection, follow these steps: 
1. Choose the Connection Type from the drop-down menu. This defines both the 
connection protocol and encapsulation method used for your ADSL service. The 
available options are 1483 Bridged IP LLC and 1483 Bridged IP VC-Mux. If you 
have not been provided specific information for the Connection Type setting, 
leave the default setting. 
2.  Some ISPs record the unique MAC Address of your computer’s Ethernet 
adapter when you first access their network. This can prevent the Router (which 
has a different MAC address) from being allowed access to the ISPs network 
(and the Internet). To clone the MAC address of your computer’s Ethernet 
adapter, click the Copy Your PC’s MAC Address button. 
3.  If you are instructed to change the VPI or VCI values, type in the values 
assigned for your account. 
4.  When you are satisfied that all the WAN settings are configured correctly, click 
the Apply Settings button. This will save the settings and reboot the Router to 
let your changes take effect.   
5.  Upon restarting, the Router should automatically establish the WAN connection. 
If it does not, click the Connect button at the bottom of this window. 
6.  Turn on the Default Route feature if you want to use the Router as the default 
route to the Internet for your LAN. Whenever a computer on the LAN attempts to 
access the Internet, the Router becomes the Internet gateway to the computer. If 
you have an alternative route for Internet traffic you may turn this off without 
effecting the Router’s connection.   
7. Leave the TCP MTU Option value at the default setting unless you have specific 
reasons to change this. 
8.  Select the desired Dynamic Route from RIP1, RIP2-B, or RIP2-M. Next, set the 
Direction to Both, IN Only, OUT Only, or None.  
9. The Multicast feature is Disabled by default. Toggle between IGMP v1 and 
IGMP v2.  
10. When you are satisfied that all the Internet settings are configured correctly, click 
on the SAVE button. 
A Dynamic IP Address connection configures the Router to automatically obtain its 
global IP address from a DHCP server on the ISP’s network. The service provider 
assigns a global IP address from a pool of addresses available to the service 
provider. Typically the IP address assigned has a long lease time, so it will likely be 
the same address each time the Router requests an IP address. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           23
Static IP Address 
To configure a Static IP type connection for the WAN, follow these steps: 
1. Choose the Static IP Address option under ISP in the Encapsulation section. 
2.  The settings in the ATM VC section at the top of the window should not be changed unless 
you have been instructed to change them. However, if you are instructed to change the VPI 
or VCI values, type in the values assigned for your account. Leave the Virtual Circuit and 
Status settings at the defaults (Pcv0 and Activated) values for now. This can be used later 
if you are configuring multiple virtual circuits for your ADSL service. 
3.  Most users will not need to change QoS settings. If this is the first time you are setting up 
the ADSL connection it is recommended that you leave the settings at the default values 
until you have established the connection. Please see the table on ATM QoS that directly 
follows the PPPoA/PPPoE section of this manual for further information. 
4. In the Static IP section, choose the Encapsulation setting from the pull-down menu. This 
defines the encapsulation method used for your ADSL service. The available options are 
1483 Bridged IP LLC, 1483 Bridged IP VC-Mux, 1483 Routed IP LLC (IPOA), and 1483 
Routed IP VC-Mux. If you have not been provided specific information for this section, 
leave the default setting. 
5. Change the Static IP Address, IP Subnet Mask, and Gateway IP address as instructed 
by your ISP. These are the global IP settings for the Internet (WAN) interface. This is the 
“visible” IP address of your account. Your ISP should have provided these IP settings to 
you. 
6.  NAT should remain enabled. If you disable NAT, you will not be able to use more than one 
computer for Internet connections. NAT is enabled and disabled system-wide, therefore if 
you are using multiple virtual connections, NAT will disabled on all connections. 
7.  Turn on the Default Route feature if you want to use the Router as the default route to the 
Internet for your LAN. Whenever a computer on the LAN attempts to access the Internet, 
the Router becomes the Internet gateway to the computer. If you have an alternative route 
for Internet traffic you may turn this off without effecting the Router’s connection.   
8. Leave the TCP MTU Option value at the default setting unless you have specific reasons 
to change this.   
9.  Select the desired Dynamic Route from RIP1, RIP2-B, or RIP2-M. Next, set the Direction 
to Both, IN Only, OUT Only, or None.  
10. The Multicast feature is Disabled by default. Toggle between IGMP v1 and IGMP v2.  
11. When you are satisfied that all the Internet settings are configured correctly, click on the 
SAVE button. 
When the Router is configured to use Static IP Address assignment for 
the Internet (WAN) connection, you must manually assign a global IP 
Address, Subnet Mask and Gateway IP Address used for the WAN 
connection. Follow the instruction below to configure the Router to use 
Static IP Address assignment for the WAN connection. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           24
Bridge Mode 
Follow the instructions below to configure a Bridged connection for the Internet interface. 
1. Choose the Bridge Mode option under ISP in the Encapsulation section. 
2.  The settings in the ATM VC section at the top of the window should not be 
changed unless you have been instructed to change them. However, if you are 
instructed to change the VPI or VCI values, type in the values assigned for your 
account. Leave the Virtual Circuit and Status settings at the defaults (Pcv0 and 
Activated) values for now. This can be used later if you are configuring multiple 
virtual circuits for your ADSL service.   
3.  Most users will not need to change QoS settings. If this is the first time you are 
setting up the ADSL connection, it is recommended that you leave the settings at 
the default values until you have established the connection. Please see the 
table on ATM QoS that directly follows the PPPoA/PPPoE section of this manual 
for further information.     
4. In the Bridge Mode section, choose the Encapsulation setting from the 
pull-down menu. This defines the encapsulation method used for your ADSL 
service. The available options are 1483 Bridged IP LLC and 1483 Bridged IP 
VC-Mux. If you have not been provided specific information for this section, 
leave the default setting.   
5.  When you are satisfied that all the Internet settings are configured correctly, click 
on the SAVE button. 
For Bridged connections it will be necessary for most users to install additional 
software on any computer that will the Router for Internet access. The additional 
software is used for the purpose of identifying and verifying your account, and then 
granting Internet access to the computer requesting the connection. The connection 
software requires the user to enter the User Name and Password for the ISP account. 
This information is stored on the computer, not in the Router. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           25
LAN Setup 
To access the LAN window, click the LAN button in the Interface Setup directory. 
You can configure the LAN IP address to suit your preference. Many users 
will find it convenient to use the default settings together with DHCP 
service to manage the IP settings for their private network. The IP address 
of the Router is the base address used for DHCP. In order to use the 
Router for DHCP on your LAN, the IP address pool used for DHCP must 
be compatible with the IP address of the Router. The IP addresses 
available in the DHCP IP address pool will change automatically if you 
change the IP address of the Router.   
To configure the LAN IP address, type in the desired values and click the 
SAVE button. Your web browser should automatically be redirected to the 
new IP address. You will be asked to login to the Router’s web manager 
again. 
The DHCP server is enabled by default for the Router’s Ethernet LAN 
interface. DHCP service will supply IP settings to workstations configured 
to automatically obtain IP settings that are connected to the Router though 
the Ethernet port. When the Router is used for DHCP it becomes the 
default gateway for DHCP client connected to it. Keep in mind that if you 
change the IP address of the Router the range of IP addresses in the pool 
used for DHCP on the LAN will also be changed. The IP address pool can 
be up to 253 IP addresses. 
The three options for DHCP service are as follows:   
 Use the Router as a DHCP server for your LAN.   
 Disable DHCP service and manually configure IP settings for 
workstations. 
 Use DHCP service provided by your ISP. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           26
Use the Router for DHCP 
To use the built-in DHCP server, click the DHCP radio button to Enabled if it has not already selected. The IP Address Pool settings can be adjusted. 
The Starting IP Address is the lowest available IP address (default = 192.168.1.2). If you change the IP address of the Router, this will change 
automatically to be 1 more that the IP address of the Router. Type in the Lease Time in the entry field provided. This is the amount of time in 
seconds that a workstation is allowed to reserve an IP address in the pool if the workstation is disconnected from the network or powered off.     
You may also configure DNS settings for the LAN when using the Router in DHCP mode. Toggle the DNS Relay setting to Use User Discovered 
DNS Server Only from Use Auto Discovered DNS Server Only and enter the IP addresses for the Primary DNS Server and Secondary DNS 
Server in the field provided. The manually configured DNS settings will be supplied to clients that are configured to request them from the Router. 
 Disable the DHCP Server 
To disable DHCP, select the Disabled option and click on the SAVE button. Choosing this option requires that workstations on the local network 
must be configured manually or use another DHCP server to obtain IP settings.   
If you configure IP settings manually, make sure to use IP addresses in the subnet of the Router. You will need to use the Router’s IP address as the 
Default Gateway for workstations in order to provide Internet access. 
Use DHCP Relay 
To use DHCP service from your ISP or another DHCP server, select the Relay option and type the DHCP Server IP for Relay Agent address in the 
space provided. Click SAVE to begin DHCP relay from the ISP. 

Section 3 – Configuration 
D-Link DSL-2640R User Manual                           27
Wireless Setup 
The two essential settings for wireless LAN operation are the SSID and 
Channel Number. The SSID (Service Set Identifier) is used to identify a 
group of wireless LAN components. The SSID can be broadcast in order 
to allow properly configured wireless stations to learn the SSID and join 
the group. 
Wireless LAN is enabled by default on the Router. If the wireless access 
point has been previously disabled you can enable 802.11g Wireless LAN 
operation by selecting the Activated option for Wireless LAN and 
continue to configure basic settings. Click the SAVE button to begin 
wireless LAN function with the settings as configured. It is not necessary 
to reboot the Router.