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ZyAIR Wireless Gateway Series User’s Guide
Firewall Screens 12-5
Figure 12-1 LAN to WAN Traffic
12.5.2 WAN to LAN Rules
WAN-to-LAN rules are Internet to your local network firewall rules. The default is to block all traffic from
the Internet to your local network.
How can you forward certain WAN to LAN traffic? You may allow traffic originating from the WAN to be
forwarded to the LAN by:
Configuring NAT port forwarding rules in the web configurator SUA Server screen or SMT NAT
menus.
Configuring One-to-One and Many-One-to-One NAT mapping rules in the web configurator Address
Mapping screen or SMT NAT menus.
Configuring WAN or LAN & WAN access for services in the Remote Management screens or SMT
menus. When you allow remote management from the WAN, you are actually configuring WAN-to-
WAN/ZyAIR firewall rules. WAN-to-WAN/ZyAIR firewall rules are Internet to the ZyAIR WAN
interface firewall rules. The default is to block all such traffic. When you decide what WAN-to-LAN
packets to log, you are in fact deciding what WAN-to-LAN and WAN-to-WAN/ZyAIR packets to log.
Allow NetBIOS traffic from the WAN to the LAN using the WAN IP web screen or SMT menu 24.8
commands.
Forwarded WAN-to-LAN packets are not considered alerts.