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System Filter Exception
System Filter Exception Rules: The rules with which any received packets is complied, the packets
will not processed by Firewall or NAT module, but to be processed directly by system protocol stack.
Figure 5-4: System Filter Exception
Firewall Exception
Enable
The check box can allow you enable or disable firewall exception.
Interface
You can select LAN, WAN1, WAN2 or ALL interfaces to be process by
the system protocol stack. If you enable check box.
Protocol
There are six protocols (UDP/TCP/ICMP/GRE/ESP/AH) to choose to let
packets directly process by the system protocol stack.
Foreign Port Range
Select foreign port number range directly process by system protocol
stack. If enable check box.
Device Port Range
Select device port number range directly process by system protocol
stack. If enable check box.