ZyXEL Communications ZYWALL USG 2000 Support Notes page 119

ZyWALL USG 2000 Support Notes
Configure Device HA on the Backup
Make sure the network settings are same with the Master
Since these two gateways will be backup each other. For end nodes in this network, they will
know only one gateway. Hence, you must confirm the setting of interface of WAN and LAN in
backup gateway are the same as the ones in master gateway.
Then, you first activate the function of "Device HA."
Enable Device HA on the backup
At the same time, configure this gateway as backup one.
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