Before You Begin; Device Ha General - ZyXEL Communications ZyWALL 1100 User Manual

Synchronization
Use synchronization to have a backup ZyWALL/USG copy the master ZyWALL/USG's configuration,
signatures (anti-virus, IDP/application patrol, and system protect), and certificates.
Note: Only ZyWALL/USGs of the same model and firmware version can synchronize.
Otherwise you must manually configure the master ZyWALL/USG's settings on the backup (by
editing copies of the configuration files in a text editor for example).
Finding Out More
• See Section 32.5 on page 516

32.1.3 Before You Begin

• Configure a static IP address for each interface that you will have device HA monitor.
Note: Subscribe to services on the backup ZyWALL/USG before synchronizing it with the
master ZyWALL/USG.
• Synchronization includes updates for services to which the master and backup ZyWALL/USGs are
both subscribed. For example, a backup subscribed to IDP/AppPatrol, but not anti-virus, gets
IDP/AppPatrol updates from the master, but not anti-virus updates. It is highly recommended to
subscribe the master and backup ZyWALL/USGs to the same services.

32.2 Device HA General

The Configuration > Device HA General screen lets you enable or disable device HA, and
displays which device HA mode the ZyWALL/USG is set to use along with a summary of the
monitored interfaces.
Figure 335 Configuration > Device HA > General
Chapter 32 Device HA
for device HA background/technical information.
ZyWALL/USG Series User's Guide
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