Chapter 4 Tutorial
ZyWALL 2WG User’s Guide
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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
1 Click SECURITY > FIREWALL.
2 Make sure the firewall is enabled and traffic from WAN 1 to the LAN is dropped.