Restricted bridge mode, Bridge filters, Configuring bridge filters – Enterasys Networks CSX6000 User Manual

Page 269: Restricted bridge mode 269, Bridge filters 269, Configuring bridge filters 269, Bridging filters, Bridge filter

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Central Site Remote Access Switch 269

C

ONFIGURING

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DVANCED

B

RIDGING

Bridge Filters

R

ESTRICTED

B

RIDGE

M

ODE

If the Restricted Bridge Mode is selected, packets will be discarded unless overridden by a user-
defined bridge filter. The bridge filters, therefore, allow you to transfer only the packets that you
specify.

If the Restricted Bridge Mode is selected, the following packet forwarding possibilities exist:
•

If the packet matches a discard filter (packet filter only), it is discarded.

•

If the packet matches a forward filter, it is forwarded to the distribution list.

•

If the packet matches a connect filter, it is connected to the members of the distribution list.
However, with Restricted Mode, the packet needs to match a forwarding filter in order to be
forwarded.

•

If the packet matches no filter, the specific action for the packet depends upon whether or not
the destination is known. (See following descriptions.)

No Filter Match - Destination Known
If the destination is known and the corresponding device is on the Known Connect list, the con-
nection is made. If the device is not on the Known Connect list, the packet is discarded.

No Filter Match - Destination Unknown
The packet is discarded.

B

RIDGE

F

ILTERS

C

ONFIGURING

B

RIDGE

F

ILTERS

Note:

Bridge dial out calls can be initiated through the use of a Known Connect list or through
the use of bridge filters. For a description of bridge dial out through bridge filters, refer to
the section titled

Dial Out Using Bridge Filters

.

U

SING

CFGEDIT

1.

Select Bridge Filters from the Bridging menu.

2.

Configure any needed protocol definitions. These definitions will be used if you configure any
protocol filters. To configure a protocol definition:
a.

Select to add a protocol definition.

b.

Enter a user-defined name for the protocol definition.

c.

Enter the Ethernet type in hex.

d. Enter the LSAP in hex.

3.

Configure source MAC filters.
a.

Select to add a MAC filter.

b.

Enter the source MAC address.

c.

Select a distribution list.

4.

Configure destination MAC filters.
a.

Select to add a destination MAC filter.

b.

Enter the destination MAC address.

c.

Select a distribution list.

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