Selecting A Deployment Scenario - SonicWALL NSA 240 Getting Started Manual

Selecting a Deployment Scenario

Before continuing, select a deployment scenario that best fits your network scheme. Reference the table below and the diagrams on the
following pages for help in choosing a scenario.
Current Gateway Configuration
No gateway appliance
Existing Internet gateway appliance
Existing SonicWALL gateway appliance
NAT/Route Mode Gateway
A
Internet
SonicWALL NSA
WWAN
New Gateway Configuration
Single SonicWALL NSA as a primary gateway.
Pair of SonicWALL NSA appliances for high
availability.
SonicWALL NSA as replacement for an existing
gateway appliance.
SonicWALL NSA in addition to an existing
gateway appliance.
SonicWALL NSA in addition to an existing
SonicWALL gateway appliance.
B
Internet
WAN
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
NSA 240
NAT with HA Pair
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
link/spd
activity NSA 240
lan wan
Use Scenario
A - NAT/Route Mode Gateway
B - NAT with HA Pair
A - NAT/Route Mode Gateway
C - Layer 2 Bridge Mode
B - NAT with HA Pair
Layer 2 Bridge Mode
C
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
link/spd
activity NSA 240
SonicWALL NSA 240 Getting Started Guide Page 19