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Global Configuration Mode Command Set Command Reference Guide

bridge <group#> address <MAC address> discard <interface>

Use the bridge address discard command to filter frames on a specific interface that contain the specified

hardware address in either the source or destination field. Using the discard version of this command

limits the processing of unwanted frames on the specified interface. Multiple bridge address commands

may be entered for custom filtering applications. Use the no form of this command to delete the configured

discard filter.

Syntax Description

<group#>

Bridge group number (1 to 255) specified using the

bridge-group

command

Unique hardware address (48-bit) in the form of six hexadecimal pairs delimited

by either . or :

(Example: 00:DE:AD:00:88:28 = 00.DE.AD.00.88.28)

Defines the interface on which the configured rule will be applied

Valid interfaces include: Ethernet (eth 0/1), virtual frame relay interfaces with a

specified DLCI (fr 1.16), and virtual PPP interfaces (ppp 1).

Default Values

By default, all packets meeting the configured bridge criteria are forwarded unless otherwise specified.

Command Modes

(config)# Global Configuration Mode

Command History

Release 1.1 Command was introduced

Functional Notes

Creating custom filter schemes for bridged networks limits the amount of unnecessary traffic processed and

distributed by the bridging equipment. Use multiple bridge address discard commands to develop the filter

scheme.

Usage Examples

The following example discards all packets from (or to) a host with the MAC address 00:DE:AD:00:88:28

destined for bridge group 17 on the ethernet 0/1 interface:

(config)#

bridge 17 address 00:DE:AD:00:88:28 discard eth 0/1

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