40 | Configuring a Stateful HA Pair2. In the Primary IP Address field, enter the unique LAN orWAN management IP address of the Primary appliance.3. In the Secondary IP Address field, enter the unique LANor WAN management IP address of the Secondaryappliance.4. Select the Allow Management on Primary/Secondary IPAddress checkbox.5. Optionally Enable Physical / Link Monitoring byselecting the checkbox.6. Optionally enable Logical / Probe IP Address by selectingthe checkbox and providing the IP Address of the targethost.7. Click OK.8. You can repeat these steps to configure Monitoring onother interfaces.Configuring Optional HA SettingsThe following settings are optional. You can configure thesesettings from the High Availability > Settings page.1. To backup the firmware and settings when you upgrade thefirmware version, select the Generate/Overwrite BackupFirmware and Settings When Upgrading Firmwarecheckbox.2. Select the Enable Virtual MAC checkbox to allow thePrimary and Secondary appliances to share a single MACaddress. This simplifies the process of updating networkARP tables and caches when a failover occurs. Only theswitches that the two appliances are directly connected toneeds to be notified. All outside devices will continue toroute to the single shared MAC address.3. Click Apply to save any of the settings on this page.For more information regarding the optional settings, see theSonicOS Administrator’s Guide.SuperMassive_9800_GSG.book Page 40 Tuesday, September 9, 2014 7:32 PM