Name: Cisco Catalyst 3750-X
Brand: Cisco
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Catalyst 3750-X and 3560-X Switch Command Reference

OL-29704-01

Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands

mac address-table static drop

Use the mac address-table static drop global configuration command on the switch stack or on a

standalone switch to enable unicast MAC address filtering and to configure the switch to drop traffic

with a specific source or destination MAC address. Use the no form of this command to return to the

default setting.

mac address-table static mac-addr vlan vlan-id drop

no mac address-table static mac-addr vlan vlan-id

Syntax Description

Defaults Unicast MAC address filtering is disabled. The switch does not drop traffic for specific source or

destination MAC addresses.

Command Modes Global configuration

Command History

Usage Guidelines Follow these guidelines when using this feature:

• Multicast MAC addresses, broadcast MAC addresses, and router MAC addresses are not supported.

Packets that are forwarded to the CPU are also not supported.

• If you add a unicast MAC address as a static address and configure unicast MAC address filtering,

the switch either adds the MAC address as a static address or drops packets with that MAC address,

depending on which command was entered last. The second command that you entered overrides the

first command.

For example, if you enter the mac address-table static mac-addr vlan vlan-id interface

interface-id global configuration command followed by the mac address-table static mac-addr

vlan vlan-id drop command, the switch drops packets with the specified MAC address as a source

or destination.

If you enter the mac address-table static mac-addr vlan vlan-id drop global configuration

command followed by the mac address-table static mac-addr vlan vlan-id interface interface-id

command, the switch adds the MAC address as a static address.

mac-addr Unicast source or destination MAC address. Packets with this MAC address are

dropped.

vlan vlan-id Specify the VLAN for which the packet with the specified MAC address is

received. Valid VLAN IDs are 1 to 4094.

Release Modification

12.2(53)SE2 This command was introduced.

Cisco Catalyst 3750-X Command Reference

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