Traffic Redirect; Configuring Dial Backup - Zywall; Figure 64 Traffic Redirect Wan Setup; Figure 65 Traffic Redirect Lan Setup - ZyXEL Communications Vantage CNM User Manual

8.6.1 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. This feature is not available on all
models.

Figure 64 Traffic Redirect WAN Setup

The following network topology allows you to avoid triangle route security issues (see
ZyWALL Appendices) 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 65 Traffic Redirect LAN Setup

8.6.2 Configuring Dial Backup - ZyWALL

Use the next menu to configure Dial Backup on the ZyWALL.
Chapter 8 Configuration > WAN
Vantage CNM User's Guide
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