SonicWALL NSA 240 - Selecting a Deployment Scenario

SonicWALL NSA 240 Getting Started Guide Page 19
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 New Gateway Configuration Use Scenario
No gateway appliance Single SonicWALL NSA as a primary gateway.
A - NAT/Route Mode Gateway
Pair of SonicWALL NSA appliances for high
availability.
B - NAT with HA Pair
Existing Internet gateway appliance SonicWALL NSA as replacement for an existing
gateway appliance.
A - NAT/Route Mode Gateway
SonicWALL NSA in addition to an existing
gateway appliance.
C - Layer 2 Bridge Mode
Existing SonicWALL gateway appliance SonicWALL NSA in addition to an existing
SonicWALL gateway appliance.
B - NAT with HA Pair
A
Internet
SonicWALL NSA
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
NSA 240
WWAN
WAN
Internet
NAT/Route Mode Gateway
C
link/spd
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
activity
NSA 240
B
link/spd
M0 X0 X1 X2 X3 X4 X5 X6 X7 X8
activity
NSA 240
lan wan
NAT with HA Pair Layer 2 Bridge Mode