ZyXEL P-662HW-63 User Guide - Page 94
Traffic Redirect, Configuring WAN Backup
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Chapter 5 WAN Setup 5.7 Traffic Redirect Traffic redirect forwards traffic to a backup gateway when the ZyXEL Device cannot connect to the Internet. An example is shown in the figure below. Figure 48 Traffic Redirect Example The following network topology allows you to avoid triangle route security issues when the backup gateway is connected to the LAN. Use IP alias to configure the LAN into two or three logical networks with the ZyXEL Device 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 filters that allow packets from the protected LAN (Subnet 1) to the backup gateway (Subnet 2). Figure 49 Traffic Redirect LAN Setup 5.8 Configuring WAN Backup Use this screen to change your ZyXEL Device's WAN backup settings, click WAN > WAN Backup Setup. The screen appears as shown. 94 P-662H/HW-D Series User's Guide
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