Chapter 8 WAN Screens

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 117 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.

Figure 118 NETWORK > WAN > Traffic Redirect

The following table describes the labels in this screen.

Table 43 NETWORK > WAN > Traffic Redirect

LABEL

DESCRIPTION

Active

Select this check box to have the ZyWALL use traffic redirect if the normal WAN

 

connection goes down.

 

 

Backup

Type the IP address of your backup gateway in dotted decimal notation. The ZyWALL

Gateway IP

automatically forwards traffic to this IP address if the ZyWALL's Internet connection

Address

terminates.

 

 

Apply

Click Apply to save your changes back to the ZyWALL.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

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ZyWALL 2WG User’s Guide