D-Link DSL-2540B - ADSL2/2+ Modem With EN Router User manual

2D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Table of Contents
Table of Contents
General Information ....................................................4
Package Contents....................................................4
Important Safety Instructions...................................4
Front Panel View......................................................5
Rear Panel View ......................................................6
Installing the Router....................................................7
Installation Diagram ....................................................9
Configuring Your Computer...................................... 10
Windows®2000...................................................... 10
Windows®XP......................................................... 11
Log in to the Router .................................................12
Home...........................................................................13
Wizard....................................................................13
ATM PVC Configuration ...............................13
WAN ......................................................................20
LAN........................................................................ 26
DNS .......................................................................27
DNS Server Configuration............................ 27
Dynamic DNS ........................................................28
Logout.................................................................... 29
Advanced Setup ........................................................ 30
ADSL .....................................................................30
ADSL Settings ................................................. 31
ADSL Tone Settings......................................... 32
Virtual Server......................................................... 33
NAT—Virtual Servers Setup ............................33
DMZ....................................................................... 36
SNMP ....................................................................36
Filter Outbound...................................................... 37
Outgoing IP Filtering Setup.............................. 37
Filter Inbound......................................................... 38
Incoming IP Filtering Setup.............................. 38
Bridge Filters ......................................................... 40
MAC Filtering Setup......................................... 40
Routing ..................................................................42
Routing - Static Route...................................... 42
RIP......................................................................... 43
Quality of Service ..................................................44
Tools ........................................................................... 46
Admin.....................................................................46
Time....................................................................... 47
Remote Log ...........................................................48
System................................................................... 50
Save and Reboot .............................................50
Backup Settings...............................................50
Update Settings ...............................................51
Restore Default Settings .................................. 51
Firmware.......................................................... 52
Test ..................................................................53

3D-Link DSL-2540B ADSL2+ 4-Port Router 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

4D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 1 - General Information
General Information
The D-Link DSL-2540B is an ADSL2+ 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
• ADSL2/2+ 4-Port Ethernet Router
• 12VDC, 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.

5D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 1 - General Information
Front Panel View
Status LED
A blinking light indicates traffic is
passing through.
Power LED
A solid green light indicates
the unit is powered up. A red
light indicates a malfunction. Local Network LEDs
A solid light indicates a connection to an
Ethernet-enabled computer on ports 1-4.
This LED blinks during data transmission.
DSL LED
A Solid light indicates the DSL is synchronized.
A flashing LED indicates the router is attempting
to synchronize with the DSL provider.
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.

6D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 1 - General Information
Rear Panel View
LAN Ports (1-4)
Connect Ethernet devices such as
computers, switches, and hubs.
ON/OFF
Press this button to turn the
unit on or off.
Reset
Pressing the Reset button restores the router to
its original factory default settings.
Power Receptor
Receptor for the supplied power
adapter.
DSL Line
Connect to an active telephone
line (RJ-11).

7D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 2 - 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.

8D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 2 - Installing The Router
Connect the Power Adapter
• Complete the process by connecting the supplied 12VAC, 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.

9D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 3 - Installation Diagram
Installation Diagram

10D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
Section 4 - Configuring Your Computer
Prior to accessing the router through the LAN port, note the following necessary configurations:
• Your PC’s TCP/IP address: 192.168.1.x (where “x” is any number between 2 and 254)
• The router’s default IP address: 192.168.1.1
• Subnet mask: 255.255.255.0
Below are the procedures for configuring your computer. Follow the instructions for the operating system that you
are using.
Configuring Your Computer
Windows®2000
These are instructions for configuring your Windows®2000 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).
2. 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.

11D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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 192.168.1.x (where “x” is any number between 2 and 254) and 255.255.255.0 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.
2. 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 192.168.1.x (where x is any number between 2 and 254) for the IP address field
and 255.255.255.0 for the Subnet Mask field.
5. Click on OK twice to save your changes and then close the Control Panel.

12D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.
2. Enter the URL http://192.168.1.1 in the address bar and press Enter.
A login screen like the one below will be displayed after you connect to the user interface.
3. Enter your user name and password, and then click OK to display 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.
Note: This manual has been prepared using the admin user name.

13D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

14D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

15D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

16D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

17D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

18D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

19D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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.

20D-Link DSL-2540B ADSL2+ 4-Port Router User Manual
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 21. The ATM PVC
Configuration screen allows you to configure
an ATM PVC identifier (VPI and VCI) and
select a service category.