ZyWALL 10~100 Series Internet Security Gateway
Gateways on the WAN Side
A second solution to the "triangle route" problem is to put all of your network gateways on the WAN side as
the following figure shows. This ensures that all incoming network traffic passes through your ZyWALL to
your LAN. Therefore your LAN is protected.
Diagram B-4 Gateways on the WAN Side
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Triangle Route