ZyXEL Communications ZyXEL ZyWALL 35 - Manual (Page 159)

ZyWALL 35 User’s Guide
Chapter 7 WAN Screens 157
Figure 58 Traffic Redirect WAN Setup
The following network topology allows you to avoid triangle route security issues (see
Appendix I Triangle Route ) 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 59 Traffic Redirect LAN Setup
7.10 Configuring Traffic Redirect
To change your ZyWALL’s Traffic Redirect settings, click WAN, then the Traffic Redirect
tab. The screen appears as shown.