ZyWALL 5 User’s Guide
Appendix G Triangle Route 587
Figure 32 IP Alias
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.
Figure 33 Gateways on the WAN Side
How To Configure Triangle Route
1 From the SMT main menu, enter 24.
2 Enter “8” in menu 24 to enter CI command mode.
3 Use the following command to allow triangle route:
sys firewall ignore triangle all on
or this command to disallow triangle route:
sys firewall ignore triangle all off
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