SonicWALL 3500 User Manual

Page 18

  Selecting a Deployment Scenario  

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

 

and the 

sections. If you have completed setup procedures in 

those sections, continue to the 

section, on page 37 to complete configuration.

Network Security Appliance

Internet

HA Link