Traffic Redirect; Configuring Traffic Redirect; Figure 77 Traffic Redirect Wan Setup; Figure 78 Traffic Redirect Lan Setup - ZyXEL Communications ZYWALL 35 User Manual

Chapter 8 WAN Screens

8.13 Traffic Redirect

Traffic redirect forwards WAN traffic to a backup gateway when the ZyWALL cannot
connect to the Internet through its normal gateway. Connect the backup gateway on the WAN
so that the ZyWALL still provides firewall protection for the LAN.

Figure 77 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 78 Traffic Redirect LAN Setup

8.14 Configuring Traffic Redirect

To change your ZyWALL's traffic redirect settings, click NETWORK > WAN > Traffic
Redirect. The screen appears as shown.
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ZyWALL 5/35/70 Series User's Guide