Belkin F1PI241ENau User Manual - Page 24

Advanced Setup Method Address Mapping Use Address Mapping to allow a limited number of public IP addresses to be translated into multiple private IP addresses for use on the internal LAN network. This also hides the internal network for increased privacy and security. 44 Advanced Setup Method 1 Port Forwarding 2 3 4 5 6 7 Using this feature, you can put PCs with public IPs and PCs with private IPs in the same LAN area. If you configure the Port Forwarding settings, remote users accessing services such as web or FTP at your local site via public IP addresses can be automatically redirected to local servers configured with private IP addresses. In other words, depending on the requested service (TCP/UDP port number), the VoIP Router redirects the external service request to the appropriate server (located at another internal IP address). For example, if you set Type/Public Port to TCP/80 (HTTP or web) and the LAN IP Address/LAN Port to 10.1.1.2/80, then all HTTP requests from outside users will be transferred to 10.1.1.2 on port 80. Therefore, by just entering the IP address provided by the ISP, Internet users can access the service they need at the local address to which you redirect them. The more common TCP service ports include: HTTP: 80, FTP: 21, Telnet: 23, and POP3: 110. 45 section