User`s guide

Chapter 5 WAN & 3G Cellular Screens
LAN-Cell 2 User’s Guide
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5.5 Traffic Redirect Screen
Traffic redirect forwards WAN traffic to a backup gateway when the LAN-Cell cannot
connect to the Internet through its normal gateway. Connect the backup gateway on the WAN
so that the LAN-Cell still provides firewall protection for the LAN.
Figure 61 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 LAN-Cell 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/LAN-Cell firewall rule that forwards packets
from the protected LAN (Subnet 1) to the backup gateway (Subnet 2).
Figure 62 Traffic Redirect LAN Setup
5.5.1 Configuring Traffic Redirect
To change your LAN-Cell’s traffic redirect settings, click NETWORK > WA N > Traffic
Redirect. The screen appears as shown.