Chapter 8 WAN Screens
ZyWALL 5/35/70 Series User’s Guide
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Figure 101 Traffic Redirect WAN Setup
IP alias allows you to avoid triangle route security issues when the backup gateway is
connected to the LAN or DMZ. Use IP alias to configure the LAN into two or three logical
networks with the ZyWALL itself as the gateway for each LAN network. Put the protected
LAN in one subnet (Subnet 1 in the following figure) and the backup gateway in another
subnet (Subnet 2). Configure a LAN to LAN/ZyWALL firewall rule that forwards packets
from the protected LAN (Subnet 1) to the backup gateway (Subnet 2).
Figure 102 Traffic Redirect LAN Setup
8.15 Configuring Traffic Redirect
To change your ZyWALL’s traffic redirect settings, click NETWORK > WAN > Traffic
Redirect. The screen appears as shown.
" For the ZyWALL 5, if the traffic redirect feature does not work after you
configure the ZyWALL’s traffic redirect settings in the Traffic Redirect screen,
you may need to turn on the WAN ping check by entering sys rn pingDrop
in the command interpreter. See the CLI Reference Guide.