ZyXEL Communications 1000 ユーザーズマニュアル

Chapter 7 Tutorials

ZyWALL USG 1000 User’s Guide

This way the ZyWALL can automatically balance the traffic load amongst the 
available WAN connections to enhance overall network throughput. Plus, if a WAN 
connection goes down, the ZyWALL still sends traffic through the remaining WAN 
connections. For a simple test, disconnect all of the ZyWALL’s wired WAN 
connections. If you can still access the Internet, your cellular interface is properly 
configured and your cellular device is working.

To fine-tune the load balancing configuration, see 

. See 

also 

 for an example.

This example shows how to configure a trunk for two WAN connections (to the 
Internet). The available bandwidth for the connections is 1Mbps (ge2) and 512 
Kbps (ge3) respectively. As these connections have different bandwidth, use the 
Weighted Round Robin algorithm to send traffic to wan1 and wan2 in a 2:1 
ratio.

Figure 75   Trunk Example    

You do not have to change many of the ZyWALL’s settings from the defaults to set 
up this trunk. You only have to set up the outgoing bandwidth on each of the WAN 
interfaces and configure the WAN_TRUNK trunk’s load balancing settings.

Here is how to set a limit on how much traffic the ZyWALL tries to send out 
through each WAN interface.