Cisco E4200 User Guide - Page 40

Linksys E4200 address to the computer, then go to "DHCP Reservation" on page 7. Enabled Select Enabled to activate port forwarding. 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. Chapter 2: Advanced Configuration Applications and Gaming > DMZ The DMZ (DeMilitarized Zone) feature allows one network device to be exposed to the Internet for use of a special-purpose service, such as online gaming or videoconferencing. The router forwards all the ports at the same time to the DMZ device (also called host). 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 device, exposing the device to the Internet. Applications and Gaming > Port Range Triggering Port Range Triggering For each entry, complete the following: Application Name Enter the name of the application. Each name can have up to 12 characters. Triggered Range Enter the starting and ending port numbers of the outgoing traffic. Check the Internet application's documentation for more information. Forwarded Range Enter the starting and ending port numbers of the incoming traffic. Check the Internet application's documentation for more information. Enabled Select Enabled to activate port triggering. Applications and Gaming > DMZ DMZ Any device whose port is being forwarded should have its DHCP client function disabled and 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, keep the default, Disabled. To expose one device, select Enabled. Then configure the options below. Source IP Address To allow any IP address from the Internet to access the DMZ device, select Any IP Address. To specify an IP address or range of IP addresses from the Internet to access the DMZ device, select and complete the IP address range fields. Destination To specify the DMZ device by IP address, select IP Address and enter its IP address. If you need to assign a static IP address to the device, then go to "DHCP Reservation" on page 7. To specify the DMZ device by MAC address, select MAC Address and enter its MAC address. To look up its MAC address, click DHCP Client Table. DHCP Client Table The DHCP Client Table screen appears. It lists computers and other devices that have IP addresses assigned by the router. The list can be sorted by Client Name, Interface, IP Address, and MAC Address. Maximum Performance Wireless-N Router DMZ > DHCP Client Table 37