D-Link DSL-2320B - 24 Mbps DSL Modem User manual

2D-Link DSL-2320B ADSL2+ Ethernet/USB Modem 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 Modem................................................... 7
Installation Diagram ....................................................9
USB Driver Installation.............................................. 10
Configuring Your Computer......................................14
Windows®2000...................................................... 14
Windows®XP.........................................................15
Log in to the Modem ................................................16
Home...........................................................................17
Wizard....................................................................17
ATM PVC Configuration ...............................17
WAN ......................................................................23
LAN........................................................................ 29
Logout.................................................................... 30
Advanced Setup ........................................................ 31
ADSL .....................................................................31
ADSL Settings ................................................. 32
ADSL Tone Settings......................................... 33
SNMP ....................................................................34
Bridge Filters ......................................................... 35
MAC Filtering Setup......................................... 35
Parental Control..................................................... 37
Time of Day Restrictions.................................. 37
Tools ........................................................................... 38
Access Control.......................................................38
Access Control—Admin................................... 39
Access Control—Services ...............................39
Access Control—IP Address ...........................40
Time....................................................................... 41
Remote Log ...........................................................42
System................................................................... 44
Save and Reboot .............................................44
Backup Settings...............................................44
Update Settings ...............................................45
Restore Default Settings .................................. 45
Firmware.......................................................... 46
Test ..................................................................47
Status..........................................................................48
Device Info............................................................. 48
WAN Info................................................................ 49
Route Info .............................................................. 49
Log......................................................................... 50
LAN........................................................................ 50
WAN ......................................................................51

3D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Table of Contents
ATM........................................................................52
ADSL .....................................................................53
ADSL BER Test......................................................54
Troubleshooting.........................................................56
Networking Basics .................................................... 58
Check your IP address ..........................................58
Check your MAC address ......................................58
Statically Assign an IP address .............................59
Contacting Technical Support..................................60
Warranty .....................................................................61
Registration................................................................63

4D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 1 - General Information
General Information
The D-Link DSL-2320B is an ADSL2+ modem offering the convenience of both Ethernet and USB connections. This
user manual provides you with a simple and easy-to-understand format to install and configure your modem.
Package Contents
• ADSL2/2+ Ethernet/USB Modem
• 12VDC, 1A DC CEC-compliant switching power adapter
• RJ-11 telephone cable
• RJ-45 Ethernet cable
• USB 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-2320B will cause damage
and void the warranty for this product.
Important Safety Instructions
• Place your modem 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-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 1 - General Information
Front Panel View
Status LED
A blinking light indicates traffic is
passing through the DSL-2320B.
Power LED
A solid green light indicates
the unit is powered up. A red
light indicates a malfunction.
DSL LED
A Solid light indicates the DSL
is synchronized. A flashing
LED indicates the modem is
attempting to synchronize with
the DSL provider.
Internet LED
A solid green light indicates that the modem
has an IP address and is connected to
the Internet. A red light indicates that the
modem does not have an IP address or
authentication has failed. No light indicates
that an ADSL connection is not present or
the modem is in bridge mode.
USB LED
A Solid light indicates a connection is
established using USB. A flashing LED
indicates traffic is being send and received
using USB.
Local Network LED
A solid light indicates a connection to an
Ethernet-enabled computer. This LED blinks
during data transmission.

6D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 1 - General Information
Rear Panel View
LAN Port
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 modem to its original factory
default settings.
Power Receptor
Receptor for the supplied
power adapter.
DSL Line
Connect to an active telephone
line (RJ-11).
USB Port
Connect a computer using a USB
cable.

7D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 2 - Installing The Modem
Installing the Modem
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 modem-end of the splitter and the ADSL port on the rear panel
of the modem.
• 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 Modem
• To use the Ethernet connection, connect the Ethernet cable from the computer directly to the modem.
Connect one end of the Ethernet cable to the port labeled LAN on the back of the modem and attach the
other end to the Ethernet port of your computer.
• Or, you can use the supplied USB cable to connect your computer directly to the modem. Connect one
end of the USB cable to the USB port on the back of the modem and connect the other end to a free USB
port on your PC. The Found New Hardware Wizard will open on your PC. See the Installation Diagram
on page 9.

8D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 2 - Installing The Modem
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.
• 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 modem. Note that either a crossover or
straight-through Ethernet cable can be used.The modem automatically recognizes the type of connection
that is required.

9D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 3 - Installation Diagram
Installation Diagram

10D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 5 - USB Installation
USB Driver Installation
To connect your computer to the modem by the USB cable instead of the Ethernet cable, you will need to install the
modem’s USB driver. If you are completing the setup using the ethernet port on the modem, skip this section and
proceed to “Configuring your Computer”. The following are general steps (may vary for each computer) to complete
the USB driver installation on a Windows®2000/XP operating system.
The following pop-up window appears when you
connect the USB cable to your computer (with the
other end already attached to the modem).
The Found New Hardware Wizard will appear on
your screen. To continue, click Next.

11D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 5 - USB Installation
The next screen allows you to select how you want the wizard
to find the driver on your computer.The default selection is set
to search for a suitable driver for my device (recommended).
To contunue, click Next.
Next, you can specify the search locations. Make sure
CD-ROM drives and Specify a Location are selected
and click Next.

12D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 5 - USB Installation
At this point, you can insert the CD-ROM into your
computer’s CD-ROM drive and click on the Browse button
to specify the CD-ROM drive of your computer.
To driver is located in the folder named D-Link_WHQL_
USB_Driver. The file name is usbdslur.inf. Click Open
to proceed with the installation.
After the file has been selected, the this screen will appear
verifying the location where the file will be extracted from.
Click on OK to continue.

13D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 5 - USB Installation
This next screen shows the device and the driver to be
installed. Click Next to proceed with the installation.
The last screen confirms that the installation is complete.
Click on Finish to close the wizard.

14D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 4 - Configuring Your Computer
Prior to accessing the modem through the LAN or USB 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 modem’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 15.
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.

15D-Link DSL-2320B ADSL2+ Ethernet/USB Modem 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.

16D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 6 - Log In To The Modem
Log in to the Modem
This section will explain how to log in to your modem 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.

17D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 7 - Home
Home
The home section provides configurations for general use, including a Quick Setup Wizard with steps to quickly set
up your modem for Internet connection. Also included in this section are LAN/WAN setup and DNS configuration. The
next sections explain the setup for each.
Wizard
This section will explain how to quickly configure the modem 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.

18D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 7 - Home
If you uncheck the DSL Auto-connect box, the resulting screen is seen below. Enter the VPI/VCI as indicated by your
ISP.

19D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 7 - Home
The following is the Connection Type screen where you select the type of network protocol and encapsulation mode
over the ATM PVC that your ISP has instructed you to use. Connection types include PPPoA, PPPoE, and Bridging
modes.
Note: The following is a bridging example. Click on Next to continue.

20D-Link DSL-2320B ADSL2+ Ethernet/USB Modem User Manual
Section 7 - Home
The Enable Bridge Service checkbox is selected by default with the bridge service name in the box. Click on Next to
continue.