ZyXEL Communications 200 Series - Manual (Page 579)

Chapter 34 Device HA
ZyWALL USG 100/200 Series User’s Guide
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Enable monitoring for the same interfaces on the master and backup ZyWALLs. Each
monitored interface must have a static IP address and be connected to the same subnet as the
corresponding interface on the backup or master ZyWALL.
Virtual Router and Management IP Addresses
• If a backup takes over for the master, it uses the master’s IP addresses. These IP addresses
are know as the virtual router IP addresses.
• Each interface can also have a management IP address. You can connect to this IP address
to manage the ZyWALL regardless of whether it is the master or the backup.
For example, ZyWALL B takes over A’s 192.168.1.1 LAN interface IP address. This is a
virtual router IP address. ZyWALL A keeps it’s LAN management IP address of 192.168.1.5
and ZyWALL B has its own LAN management IP address of 192.168.1.6. These do not
change when ZyWALL B becomes the master.
Figure 434 Management IP Addresses
34.3.1 Configuring Active-Passive Mode Device HA
The Device HA Active-Passive Mode screen lets you configure general active-passive mode
device HA settings, view and manage the list of monitored interfaces, and synchronize backup
ZyWALLs. To access this screen, click Device HA > Active-Passive Mode.
A
192.168.1.1
B
192.168.1.1
192.168.1.5
192.168.1.6