Scenario C: L2 Bridge Mode - SonicWALL NSA Series Getting Started Manual

NSA_5000_4500_3500_GSG.book Page 19 Wednesday, January 19, 2011 6:21 PM

Scenario C: L2 Bridge Mode

C
For network installations where the SonicWALL NSA Series is
Third Party Gateway
running in tandem with an existing network gateway.
Internet or
L2 Bridge Link LAN Segment 2
In this scenario, the original gateway is maintained. The
SonicWALL NSA
SonicWALL NSA Series is integrated seamlessly into the
existing network, providing the benefits of deep packet
Network Security Appliance
Network Security Appliance
NSA
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
LAN Zone
WLAN Zone
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.
Initial
To set up this scenario, follow the steps covered in the
Setup Configuring L2 Bridge Mode
and the sections. If you
have completed setup procedures in those sections, continue to
section, on page 37
the Additional Deployment Configuration
to complete configuration.
SonicWALL NSA 5000/4500/3500 Getting Started Guide Page 19