ZyXEL Communications 2 Plus 4.2.4Forwarding Traffic from the WAN to a Local Computer

Chapter 4 Tutorials

10 After the configurations, the Address Mapping screen looks as shown. You still have one IP address (1.2.3.7) that can be assigned to another internal server when you expand your network.

Figure 55 Tutorial Example: NAT Address Mapping Done

"To allow traffic from the WAN to be forwarded through the ZyXEL Device, you must also create a firewall rule. Refer to Section 4.2.5 on page 107 for more information.

4.2.4Forwarding Traffic from the WAN to a Local Computer

A server NAT address mapping rule allows computers behind the NAT be accessible to the outside world. To have the ZyWALL forward incoming traffic to a specific computer on your local network, you should also create a port forwarding (server mapping) rule.

In this example, you want to forward FTP traffic using port 21 to the computer with the IP address of 192.168.1.39.

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ZyWALL 2 Plus User’s Guide