ZyXEL Communications 2 Plus User Manual
Chapter 4 Tutorials
ZyWALL 2 Plus User’s Guide
107
Figure 58 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 the WAN 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:
ZyWALL forward traffic initiated from the WAN 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
• Mail server
• FTP server
Figure 59 Tutorial Example: Forwarding Incoming FTP Traffic to a Local Computer
1 Click SECURITY > FIREWALL.
2 Make sure the firewall is enabled and traffic from the WAN to the LAN is dropped.
2 Make sure the firewall is enabled and traffic from the WAN to the LAN is dropped.