Enterasys Networks CSX7000, CSX5500, CSX6000 manual Configuring Bridge Filters Using Cfgedit

CONFIGURING ADVANCED BRIDGING

Bridge Filters

RESTRICTED BRIDGE MODE

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.

BRIDGE FILTERS

CONFIGURING BRIDGE FILTERS

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.

USING 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.

Central Site Remote Access Switch 269