D-Link DI-604UP - Broadband Router Plus USB Print Server Product Manual page 6

Filter Scheduling
These filters can also be scheduled to be active on certain days or for a
duration of hours or minutes.
Network Address Translation
NAT allows you to share a single IP Address and protects you from outside
intruders gaining access to your private network.
DHCP Server Supported
All of the networked computers can retrieve TCP/IP settings automatically
from the DI-604UP.
Web-Based Management
DI-604UP is configurable through any network computer's web browser using
Netscape or Internet Explorer.
Access Control Supported
Allows you to assign different access rights for different users.
Virtual Server Supported
Enables you to expose WWW, FTP and other services on your LAN to be
accessible to Internet users.
Special Application Supported
Special applications requiring multiple connections, like Internet gaming,
video conferencing, Internet telephony and so on. The DI-604UP 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 feature is insufficient to allow
an application to function correctly.
Technology Introduction
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
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