8

WAN Screens

This chapter describes how to configure WAN settings.

"WAN 2 refers to the 3G card on the supported ZyWALL in router mode.

8.1WAN Overview

•Use the WAN General screen to configure load balancing, route priority and connection test for the ZyWALL.

•Use the WAN 1 screen to configure the WAN1 interface for Internet access on the ZyWALL.

•Use the WAN 2 screen to configure the WAN2 interface for Internet access on the ZyWALL.

•Use the Traffic Redirect screen to configure an alternative gateway.

•Use the Dial Backup screen to configure the backup WAN dial-up connection.

8.2Multiple WAN

You can use a second connection for load sharing to increase overall network throughput or as a backup to enhance network reliability.

The ZyWALL has one WAN port. When the ZyWALL is in router mode, you can optionally insert a 3G card to add a second WAN interface. You can connect one interface to one ISP (or network) and connect the other to a second ISP (or network).

The ZyWALL can balance the load between the two WAN interfaces (see Section 8.3 on page 166).

You can use policy routing to specify the WAN interface that specific services go through. An ISP may give traffic from certain (more expensive) connections priority over the traffic from other accounts. You could route delay intolerant traffic (like voice over IP calls) through this kind of connection. Other traffic could be routed through a cheaper broadband Internet connection that does not provide priority service. If one WAN interface's connection goes down, the ZyWALL can automatically send its traffic through the other WAN interface. See Chapter 19 on page 405 for details.

 

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ZyWALL 2WG User’s Guide