Zyxel-communications 5 Series Bedienungsanleitung PDF herunterladen (Seite 170)

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ZyWALL 5/35/70 Series User’s Guide

170 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 73 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 74 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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