SonicWALL 3500, NSA 5000, 4500 manual Scenario B State Sync Pair in NAT/Route Mode

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 high-availability networking.

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