Chapter 23 Device HA
NXC5200 User’s Guide
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23.1.2 What You Need to Know
The following terms and concepts may help as you read this chapter.
Management Access
You can configure a separate management IP address for each interface. You can
use it to access the NXC for management whether the NXC 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 NXC copy the master NXC’s configuration,
signatures (anti-virus, IDP/application patrol, and system protect), and
certificates.
Note: Only NXCs of the same model and firmware version can synchronize.
Otherwise you must manually configure the master NXC’s settings on the backup
(by editing copies of the configuration files in a text editor for example).
23.1.3 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 NXC before synchronizing it with the
master NXC.
• Synchronization includes updates for services to which the master and backup
NXCs 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
NXCs to the same services.