D-Link DSL-504 Requirements

DSL-504 ADSL Ethernet Router User’s Guide

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Requirements

To install and use the Router you need a computer equipped with an Ethernet port (such as an Ethernet NIC) and

a web browser. You may also need to use information given to you by your service provider. This information is

stored in the Router’ s memory and used to establish the network connection and confir m your identity. The

information may be only your user name (or number) and password, or it may be information used to define your

Connection Profile. The connection profile is used to instruct the Router how to communicate with the

computers and other routers that are used to control access to the service provider’ s network and ultimately to

the Internet. The connection profile is a logical construct that establishes a definite path used for communication

and defines the rules or protocols used to initiate and maintain the communication path.

Since ADSL and telephone s ervices share t he same co pper wiring to carry t heir respective signals, a filtering

mechanism may b e necessary to avoid mutual interference. A low pass filter device can be installed for each

telephone that shares the line with the ADSL line. T hese 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 p ass filters with your installation. Appendix B provides illustrated examples of

how to install two common styles of low pass filters.

The DSL-504 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.

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 Microsoft Internet

Explorer® version 5.0, Netscape Navigator® version 4.7, 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.

Any computer that uses the Router must be able to connect to it through t he 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, mos t fully

assembled desktop computers come with an Ethernet NIC adapter as standard equipment. If your computer does

not have an Ethernet por t, you must install an Ethernet NIC adapter before you can use the Router. If you must

install an adapter , follow t he installation i nstructions that come with the Ethernet NIC adapter. Normally, an

Ethernet port will be TCP/IP enabled, this means that it is able to communicate with other computers on an IP

network (such as the Internet). Make sure your computer ha s the TCP/IP protocol installed. If you have accessed

the Internet with the computer before, it already has this installed.

It may be necessary to install software on your computer that enables it to access the Internet. Additional

software must be installed if you are using what is called a “bridged” connection. For a bridged connection, the

information needed to make and maintain the Internet connection i s stored on your computer, not in the Router.

This type of connection is similar to the arrangement used for analog dial-up Routers, but the connection speed is

much faster. Various ter ms are to descr ibe a bridged ADSL connection including the term “RFC 1483 Bridge”

used in this guide. RFC 1484 is a technical standard used to define a bridged connection.

If your ADSL service is delivered through a PPP (Point to Point Protocol) connection, the information needed to

establish and maintain the Internet connection is stored in the Router. In this case, it is not neces sary to install

software on your computer.