ZyXEL P-660HN-T1A Support Guide - Page 58
Internet Access Only
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P-660HN Series Support Notes Please note that a server can support more than one service, e.g., a server can provide both FTP and Mail service, while another provides only Web service. The following procedures show how to configure a server behind NAT. Step 1: Login Web Configurator, Advanced Setup, Network -> NAT -> Port Forwarding. Step 2: Select the service name from the pull-down menu, and fill in the server Address on „Server IP Address‟, then click button „Add‟ to save it. Step 3: You could click the button „Edit‟ on the rule to modify the Service name, Server IP Address, Start/End Port. The most often used port numbers are shown in the following table. Please refer RFC 1700 for further information about port numbers. Service FTP Telnet SMTP DNS (Domain Name Server) www-http (Web) PPTP (Point-to-Point Tunneling Protocol) Examples Port Number 21 23 25 53 80 1723 Internet Access Only Internet Access with an Internal Server Using Multiple Global IP addresses for clients and servers Support Non NAT Friendly Applications (1) Internet Access Only In our Internet Access example, we only need one rule where all our ILAs map to one IGA assigned by the ISP. You can just use the default SUA NAT, or you 58 All contents copyright © 2010 ZyXEL Communications Corporation.
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