ZyXEL Communications ZyXEL ZyWALL P1 - Manual (Page 298)

ZyWALL P1 User’s Guide
Appendix E Triangle Route 297
Figure 167 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 168 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