25
Device HA
Use device HA to increase network reliability. Device HA lets a backup ZyWALL (B) automatically take over if a master ZyWALL (A) fails.
Figure 24 Device HA Backup Taking Over for the Master
A
B
25.1 Device HA Overview
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•Legacy mode uses VRRP (Virtual Router Redundancy Protocol) groups and allows for more complex relationships between the master and backup ZyWALLs, such as
•The ZyWALLs must all support and be set to use the same device HA mode (either
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.
SynchronizationUse synchronization to have a backup ZyWALL copy the master ZyWALL’s configuration, signatures
Note: Only ZyWALLs of the same model and firmware version can synchronize.
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