NetComm NB3300 manual Port Forwarding Settings

4-3 Port Forwarding Settings

The Port Forwarding Settings application allows you to set up to ten public ports, such as a HTTP (web), SMTP (email), FTP, etc. that can be accessed by external users of the Internet. Each service is forwarded to a dedicated network computer (server) configured with a fixed LAN IP Address. Although the internal service addresses are not directly accessible to the external user, the NetComm ADSL Modem Router is able to redirect requests to the appropriate internal IP Address/server. To use this application, it is recommended you use a fixed Public IP Address from your ISP.

Note: Your NetComm ADSL Modem Router supports only one forward to one IP Address for each port (service).

■Set up individual network computers to act as servers and configure each with a fixed IP Address.

■In the “One Page Setup” screen, ensure the “Private IP Address” is set to the NetComm ADSL Modem Router’s default setting of 192.168.1.1. If a fixed Public IP Address is to be used, select “Specify an IP address” and enter the IP Address and other necessary information provided by your ISP.

■Incoming Ports - Enter the desired service port numbers in the “Ports” fields. You can specify the protocol type as “TCP” or “UDP” from the drop-down list. If you are not sure which one to select, choose “Both”. A selection of commonly used port numbers is provided on the right of this screen.

■Redirect IP Address - Enter the appropriate IP Addresses of the service computers in the “Redirect IP Address” locations.

Example: If the service port number 80~80 (representing an HTTP web address) is entered in “Ports” and 192.168.1.100 is entered in “Redirect IP Address”, then all HTTP requests from external Internet users will be directed to port 80 of the computer/server with the 192.168.1.100 fixed IP Address.

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