ZyXEL Communications Intelligent Broadband Sharing Gateway P-324 - Manual (Page 108)

Prestige 324 Intelligent Broadband Sharing Gateway
Remote Node Setup 9-11
Figure 9-7 Traffic Redirect WAN Setup
The following network topology allows you to avoid triangle route security holes when the backup gateway
is connected to the LAN. Use IP alias to configure the LAN into two or three logical networks with the
Prestige 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/Prestige
firewall rule that forwards packets from the protected LAN (Subnet 1) to the backup gateway (Subnet 2).
Figure 9-8 Traffic Redirect LAN Setup
9.5.1 Route Priority and Metric
The metric sets the priority for the Prestige’s routes to the Internet. If any two of the default routes have the
same metric, the Prestige uses the following pre-defined priorities:
1. Normal route: designated by the ISP or a static route.