D-Link DI-707PD manual Introduction to Broadband Router Technology

Features & Benefits continued

Access Control supported

Allows you to assign different access rights for different users

Packet filter supported

Packet Filter allows you to control access to a network by analyzing the incoming and outgoing packets and letting them pass or halting them based on the IP address of the source and destination.

Virtual Server supported

Enables you to expose WWW, FTP and other services on your LAN to be accessible to Internet users.

User-Definable Application Sensing Tunnel

User can define the attributes to support special applications requiring multiple connections, like Internet gaming, video conferencing, Internet telephony and so on. The DI-707P can sense the application type and open a multi-port tunnel for it.

DMZ Host supported

Allows a networked computer to be fully exposed to the Internet; this function is used when the special “application-sensing tunnel feature” is insufficient to allow an application to function correctly

Introduction to Broadband

Router Technology

A router is a device that forwards data packets from a source to a destination. Routers forward data packets using IP addresses and not a MAC address. A router will forward data from the Internet to a particular computer on your LAN.

The information that makes up the Internet gets moved around using routers. When you click on a link on a web page, you send a request to a server to show you the next page. The information that is sent and received from your computer is moved from your computer to the server using routers. A router also determines the best route that your information should follow to ensure that the information is delivered properly.

A router controls the amount of data that is sent through your network by eliminating information that should not be there. This provides security for the computers con- nected to your router, because computers from the outside cannot access or send information directly to any computer on your network. The router determines which computer the information should be forwarded to and sends it. If the information is not intended for any computer on your network, the data is discarded. This keeps any unwanted or harmful information from accessing or damaging your network.

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