Enabling the Bridge Mode Option {Bridge Mode}
Bridge Mode allows complete and unconditional access to devices on the subscriber
side of the USG. When the Bridge Mode option is enabled, the USG is effectively
transparent to the network in which it is located, allowing clusters of switches
(especially Cisco Systems switch clusters) to be managed using the STP (Spanning
Tree Protocol), or any other algorithm/protocol. The USG forwards any and all
packets (except those addressed to the USG network interface). The packets are
unmodified and can be forwarded in both directions. This is a very useful feature
when troubleshooting your entire network as it allows administrators to effectively
"remove" the USG from the network without physically disconnecting the unit.
You can still manage the USG when Bridge Mode is enabled, but you have no other
functionality. If you enable the Bridge Mode option and then plug the USG into a
network, all you need to do is assign it routable IP addresses. You can then set up all
other features and disable the Bridge Mode option whenever you want to start using
the USG in that network.
This procedure shows you how to enable the Bridge Mode option.
From the Web Management Interface, click on
1.
The Bridge Mode (Passthrough) Settings screen appears:
Click on the check box for
2.
Click on the
3.
Submit
you want to reset the "Enable" option to its previous state.
156
U
NIVERSAL
to enable this feature.
Bridge Mode
button to save your changes, or click on the
S
G
UBSCRIBER
ATEWAY
, then
System
Bridge Mode.
Reset
System Administration
™
button if
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