Linksys WRT54G2 - Manual (Page 22)

Chapter 3
Advanced Configuration
18 Wireless-G Broadband Router
Port Range Forward
To forward a port, enter the information on each line for
the criteria required.
Application In this field, enter the name you wish to give
the application. Each name can be up to 12 characters.
Start/End This is the port range. Enter the number that
starts the port range in the Start column and the number
that ends the range in the End column.
Protocol Select the protocol used for this application,
either TCP or UDP, or Both.
IP Address For each application, enter the IP Address of
the PC running the specific application.
Enable Select Enable to enable port forwarding for the
relevant application.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.
Applications & Gaming > Port Triggering
The Applications & Gaming > Port Triggering screen allows
the Router to watch outgoing data for specific port
numbers. The IP address of the computer that sends the
matching data is remembered by the Router, so that when
the requested data returns through the Router, the data is
pulled back to the proper computer by way of IP address
and port mapping rules.
Applications and Gaming > Port Triggering
Port Triggering
Application Enter the application name of the trigger.
Triggered Range
For each application, list the triggered port number range.
Check with the Internet application documentation for
the port number(s) needed.
Start Port Enter the starting port number of the Triggered
Range.
End Port Enter the ending port number of the Triggered
Range.
Forwarded Range
For each application, list the forwarded port number
range. Check with the Internet application documentation
for the port number(s) needed.
Start Port Enter the starting port number of the
Forwarded Range.
End Port Enter the ending port number of the Forwarded
Range.
Enable Select Enable to enable port triggering for the
applicable application.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.
Applications and Gaming > DMZ
The DMZ feature allows one network computer to be
exposed to the Internet for use of a special-purpose
service such as Internet gaming or videoconferencing.
DMZ hosting forwards all the ports at the same time to
one PC. The Port Range Forward feature is more secure
because it only opens the ports you want to have opened,
while DMZ hosting opens all the ports of one computer,
exposing the computer to the Internet.
Applications and Gaming > DMZ
DMZ
Any PC whose port is being forwarded must have its DHCP
client function disabled and should have a new static IP
address assigned to it because its IP address may change
when using the DHCP function.
To expose one PC, select Enable. Then, enter the
computer’s IP address in the DMZ Host IP Address field. This
feature is disabled by default.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.