Reference Manual for the Model CG814M Wireless Cable Modem Gateway
only one IP address to the Internet, and outside users cannot directly address any of your local computers. However, by defining an inbound rule you can make a local server (for example, a web server or game server) visible and available to the Internet. The rule tells the gateway to direct inbound traffic for a particular service to one local server based on the destination port number. This is also known as Port Forwarding.
Note: Some residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to the Acceptable Use Policy of your ISP.
Remember that allowing inbound services opens holes in your firewall. Only enable those ports that are necessary for your network. Following are two application examples of inbound rules:
To configure inbound rules on the CG814M Gateway, click the Port Forwarding link on the Advanced section of the main menu..
Figure 4-5: Port Forwarding menu
•To forward inbound traffic:
Protecting Your Network |
