Cisco WRT120N User Manual - Page 24

Chapter 3 Start~End Port Enter the number or range of port(s) used by the server or Internet applications. Check with the Internet application documentation for more information. Protocol Select the protocol(s) used for this application, TCP, UDP, or Both. To IP Address For each application, enter the IP address of the computer that should receive the requests. If you assigned a static IP address to the computer, then you can look up its IP address; click DHCP Reservation on the Basic Setup screen (refer to DHCP Reservation, page 7). Enabled Select Enabled to enable port forwarding for the applications you have defined. Click Save Settings to apply your changes, or click Cancel Changes to clear your changes. Applications & Gaming > Port Range Triggering The Port Range 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. Advanced Configuration Forwarded Range For each application, enter the starting and ending port numbers of the forwarded port number range. Check with the Internet application documentation for the port number(s) needed. Enabled Select Enabled to enable port triggering for the applications you have defined. 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 computer. The Port Range Forwarding 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 > Port Range Triggering Port Range Triggering Application Name Enter the application name of the trigger. Triggered Range For each application, enter the starting and ending port numbers of the triggered port number range. Check with the Internet application documentation for the port number(s) needed. Wireless-N Home Router Applications and Gaming > DMZ DMZ Any computer 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. Enabled/Disabled To disable DMZ hosting, select Disabled. To expose one computer, select Enabled. Then configure the following settings: Source IP Address If you want any IP address to be the source, select Any IP Address. If you want to specify an IP address or range of IP addresses as the designated source, select and complete the IP address range fields. Destination If you want to specify the DMZ host by IP address, select IP Address and enter the IP address in the field provided. If you want to specify the DMZ host 20