Dell SonicWall NSA 2600 Getting Started Manual page 36

Scenario C: L2 Bridge Mode
For network installations where the Dell SonicWALL NSA
appliance is running in tandem with an existing network
gateway.
In this scenario, the original gateway is maintained. The Dell
SonicWALL NSA appliance is integrated seamlessly into the
existing network, providing the benefits of deep packet
inspection and comprehensive security services on all network
traffic.
L2 Bridge Mode employs a secure learning bridge architecture,
enabling it to pass and inspect traffic types that cannot be
handled by many other methods of transparent security
appliance integration. Using L2 Bridge Mode, a Dell SonicWALL
security appliance can be non-disruptively added to any
Ethernet network to provide in-line deep-packet inspection for
network traffic.
To set up this scenario, follow the steps covered in:
• "Configuring L2 Bridge Mode" on page 43
C
Dell SonicWALL NSA Appliance
1GE
X6 X4 X2
SDHC
M0
ALARM
TEST
PWR
SonicWALL NSA 2600
CONSOLE MGMT X7 X5 X3
X0
Network Resources
Third Party Gateway
LAN
Internet or
LAN Segment 2
X0
M0
Expansion Module
X1
X1
L2 Bridge Link
Scenario A: NAT Mode Gateway | 35