SonicWALL 3500 User Manual

Page of 74
SonicWALL NSA 5000/4500/3500 Getting Started Guide  
Page 17
Scenario A: NAT/Route Mode Gateway
For new network installations or installations where the 
SonicWALL NSA Series is replacing the existing network 
gateway.
In this scenario, the SonicWALL NSA Series is configured in 
NAT/Route mode to operate as a single network gateway. Two 
Internet sources may be routed through the SonicWALL 
appliance for load balancing and failover purposes. Because 
only a single SonicWALL appliance is deployed, the added 
benefits of high availability with a stateful synchronized pair are 
not available.
To set up this scenario, follow the steps covered in the
 section. If you have completed setup procedures in that 
section, continue to the 
section, on page 37 to complete configuration.
A
SonicWALL NSA
Internet
ISP 1 
Network Security Appliance
NSA