Page 32 Scenario C: L2 Bridge Mode
Scenario C: L2 Bridge Mode
For network installations where the SonicWALL NSA 240 is
running in tandem with an existing network gateway.
In this scenario, the original gateway is maintained. The
SonicWALL NSA 240 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 SonicWALL
security appliance can be non-disruptively added to any
Ethernet network to provide in-line deep packet inspection for
all traversing IPv4 TCP and UDP traffic. L2 Bridge Mode can
pass all traffic types, including IEEE 802.1Q VLANs, Spanning
Tree Protocol, multicast, broadcast, and IPv6.
To set up this scenario, follow the steps covered in the next
section. If you have completed setup procedures in those
sections, continue to the Additional Deployment Configuration -
page 47 to complete configuration.
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