ZyXEL Communications NBG410W3G - Manual (Page 89)

Chapter 4 Tutorials
NBG410W3G Series User’s Guide
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Figure 52 Tutorial Example: NAT Port Forwarding
4.5.5 Allow WAN-to-LAN Traffic through the Firewall
By default, the ZyXEL Device blocks any traffic initiated from the WAN to the LAN. To have
the ZyXEL Device 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 53 Tutorial Example: Forwarding Incoming FTP Traffic to a Local Computer
FTP
FTP
192.168.1.39
192.168.1.39
192.168.1.12
192.168.1.13
Mail
Web
WAN
LAN