ZyXEL Communications ZYWALL USG 2000 Support Notes page 123

ZyWALL USG 2000 Support Notes
Enter the password for synchronization on the Master
Test: Unplug the WAN cable on the Master
Next, we do a test to see whether the function of "Device HA" work. You can simply un-plug
the WAN cable connected in the master gateway to simulate the link failure in the network.
In this figure, you can see the master router goes down based on the information shown in HA
status. You can see that HA status will change to fault on the Master and the Backup will go
Active
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