Chapter 4 Tutorial

Figure 60 Tutorial Example: NAT Port Forwarding

4.2.5 Allow WAN-to-LAN Traffic through the Firewall

By default, the ZyWALL blocks any traffic initiated from the WAN to the LAN. To have the ZyWALL forward traffic initiated from WAN 1 to a local computer or server on the LAN, you need to configure a firewall rule to allow it.

In this example, you create the firewall rules to allow traffic from the WAN to the following servers on the LAN:

•Web server

•Mail server

•FTP server

Figure 61 Tutorial Example: Forwarding Incoming FTP Traffic to a Local Computer

1Click SECURITY > FIREWALL.

2Make sure the firewall is enabled and traffic from WAN 1 to the LAN is dropped.

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ZyWALL 2WG User’s Guide