ZyXEL Communications 802.11g ADSL 2+ 4-Port Security Gateway HW-D Series - Manual (Page 483)

P-662H/HW-D Series User’s Guide
Appendix P Triangle Route 483
Figure 275 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 ZyXEL Device to your LAN. Therefore your LAN is protected.
Figure 276 Gateways on the WAN Side