ADTRAN NetVanta 2730, Getting Started Manual

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ADTRAN NetVanta 2730 Getting Started Guide Page 31
Scenario C: L2 Bridge Mode
For network installations where the ADTRAN NetVanta 2730 is
running in tandem with an existing network gateway.
In this scenario, the original gateway is maintained. The
ADTRAN NetVanta 2730 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 ADTRAN
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.
C
Network Gateway
L2 Bridge Link
Network Resources
X1
LAN
X0
Internet or
LAN Segment 2