Scenario B: State Sync Pair in NAT/Route Mode
For network installations with two SonicWALL NSA Series appliances of the same model configured as a stateful synchronized pair for redundant
In this scenario, one SonicWALL NSA Series operates as the primary gateway device and the other SonicWALL NSA Series is in passive mode. All network connection information is synchronized between the two devices so that the backup appliance can seamlessly switch to active mode without dropping any connections if the primary device loses connectivity.
To set up this scenario, follow the steps covered in the Initial Setup and the Configuring a State Sync Pair in NAT/Route Mode sections. If you have completed setup procedures in those sections, continue to the Additional Deployment Configuration section, on page 37 to complete configuration.
BSonicWALL NSA 2
SonicWALL
HA / Failover Pair
NSA
HA Link
SonicWALL NSA 1
Network Security Appliance
Internet
Local Network
Page 18 Selecting a Deployment Scenario