ZyWALL 110/310/1100 Series User’s Guide
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Device HA
26.1 Overview
Device HA lets a backup ZyWALL (B) automatically take over if the master ZyWALL (A) fails.
Figure 235
Device HA Backup Taking Over for the Master
26.1.1 What You Can Do in this Chapter
• Use the General screen (
) to configure device HA global settings, and
see the status of each interface monitored by device HA.
• Use the Active-Passive Mode screens (
) to use active-passive mode
device HA. You can configure general active-passive mode device HA settings, view and manage
the list of monitored interfaces, and synchronize backup ZyWALLs.
26.1.2 What You Need to Know
Active-Passive Mode
• Active-passive mode lets a backup ZyWALL take over if the master ZyWALL fails.
Management Access
You can configure a separate management IP address for each interface. You can use it to access
the ZyWALL for management whether the ZyWALL is the master or a backup. The management IP
address should be in the same subnet as the interface IP address.
Synchronization
Use synchronization to have a backup ZyWALL copy the master ZyWALL’s configuration, and
certificates.
A
B