NetComm Wireless NWL-12 Series, User Manual

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NetComm Wireless 3G Light Industrial M2M Router www.netcommwireless.com
Router Firewall
The Router firewall page is used to enable or disable the in-built firewall on the router. When enabled, the firewall performs stateful packet inspection on inbound traffic from the wireless WAN
and blocks all unknown services, that is, all services not listed on the Services configuration page of the router.
With respect to the other Routing options on the Networking page, the firewall takes a low priority. The priority of the firewall can be described as:
DMZ > MAC/IP/Port filtering rules > MAC/IP/Port filtering default rule > Router firewall rules
In other words, the firewall is of the lowest priority when compared to other manual routing configurations. Therefore, a MAC/IP/Port filtering rule takes priority in the event that there is a conflict of
rules. When DMZ is enabled, MAC/IP/Port filtering rules and the router firewall are ignored but the router will still honour the configuration of the Remote router access control settings listed under
Administration Settings.
Figure 52 - Router Firewall toggle key