SonicWALL 4500 Benutzerhandbuch
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.
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
SonicWALL NSA 1
SonicWALL NSA 2
B
Network Security Appliance
NSA
Local Network
SonicWALL
HA / Failover Pair
Internet
HA Link