Configuring Ha Monitoring - SonicWALL TZ 210 Series Getting Started Manual

TZ_210_GSG.book Page 51 Friday, November 14, 2008 10:29 AM

Configuring HA Monitoring

On the High Availability > Monitoring page, you can configure
both physical and logical interface monitoring. By enabling
physical interface monitoring, you enable link detection for the
designated HA interfaces. The link is sensed at the physical
layer to determine link viability.
Logical monitoring involves configuring the SonicWALL to
monitor a reliable device on one or more of the connected
networks. Failure to periodically communicate with the device
by the Active unit in the HA Pair will trigger a failover to the Idle
unit. If neither unit in the HA Pair can connect to the device, no
action will be taken.
The Primary and Backup IP addresses configured on this page
are used for multiple purposes:
• As independent management addresses for each unit (only
on X0 and X1 interfaces)
• To allow synchronization of licenses between the Idle unit
and the SonicWALL licensing server
• As the source IP addresses for the probe pings sent out
during logical monitoring
To set the independent LAN management IP addresses and
configure physical and/or logical interface monitoring, perform
the following steps on the Primary unit:
1. Navigate to the High Availability > Monitoring page.
2. Click the Configure icon for the X0 interface.
3. To enable link detection between the designated HA
interfaces on the Primary and Backup units, leave the
Enable Physical Interface Monitoring checkbox
selected.
4. In the Primary IP Address field, enter the unique LAN
management IP address of the Primary unit.
5. In the Backup IP Address field, enter the unique LAN
management IP address of the Backup unit.
SonicWALL TZ 210 Series Getting Started Guide Page 51