ZyXEL Communications Corporation AMG1302 Manuel D’Utilisation

Chapter 9 Network Address Translation (NAT)

AMG1302-T10A User’s Guide

Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), 

port 80 to another (B in the example) and assign a default server IP address of 192.168.1.35 to a 

third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. 

The NAT network appears as a single host on the Internet.

Multiple Servers Behind NAT Example

Click Network > NAT > Port Forwarding to open the following screen.

See 

 for port numbers commonly used for particular services. 

Network > NAT > Port Forwarding

A=192.168.1.33

D=192.168.1.36

C=192.168.1.35

B=192.168.1.34