Configuration Changes - SonicWALL TELE3 SP Administrator's Manual

9. Click Update. Once the SonicWALL has been updated, a message confirming the update
is displayed at the bottom of the browser window.
Note: It is important during initial configuration that the backup SonicWALL has not been
previously configured for use. If the backup SonicWALL has previous network settings, it is
recommended to reset the SonicWALL to the factory default settings using Restore Factory
Default Settings located in the Tools section. Additionally, the password must be changed
back to the default password of "password" using the Password tab in the General section.
10. Power on the backup SonicWALL used for High Availability. After completing the
diagnostic cycle, the primary SonicWALL auto-detects the presence of the backup
SonicWALL and synchronizes the settings.
11. To confirm that the synchronization is successful, check the primary SonicWALL log for a
High Availability confirmation message. Alternatively, you can log into the backup
SonicWALL using its unique LAN IP address and confirm that it is the backup SonicWALL.
If the primary SonicWALL fails to synchronize with the backup, an error message is displayed
at the bottom of the screen. An error message also appears on the Status tab. To view the
error message on the Status tab, click General on the left side of the browser and then
Status at the top of the window.
To check the backup SonicWALL firmware version or serial number, log into the backup
SonicWALL, click General on the left side of the browser window and then click Status at the
top of the window. Both the firmware version and the SonicWALL serial number are displayed
at the top of the window.
If the backup SonicWALL serial number was incorrectly specified in the primary SonicWALL Web
Management Interface, log into the primary SonicWALL and correct the backup SonicWALL
Serial Number field.
At this point, you have successfully configured your two SonicWALLs as a High Availability
pair. In the event of a failure in the primary unit, the backup unit takes over operation and
maintains the connection between the protected network and the Internet.

Configuration Changes

Configuration changes for the High Availability pair can be made on the primary or the
backup SonicWALL. The primary and backup SonicWALL appliances are accessible from their
unique IP addresses. A label indicates which SonicWALL appliance is accessed.
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