Cisco Catalyst 3560-X Command Reference Manual page 471

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

Usage Guidelines

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You enter MAC access-list configuration mode by using the

configuration command.

If you use the host keyword, you cannot enter an address mask; if you do not use the any or host

keywords, you must enter an address mask.

After an access control entry (ACE) is added to an access control list, an implied deny-any-any

condition exists at the end of the list. That is, if there are no matches, the packets are denied. However,

before the first ACE is added, the list permits all packets.

For more information about MAC-named extended access lists, see the software configuration guide for

this release.

This example shows how to define the MAC-named extended access list to allow NETBIOS traffic from

any source to MAC address 00c0.00a0.03fa. Traffic matching this list is allowed.

Switch(config-ext-macl)# permit any host 00c0.00a0.03fa netbios

This example shows how to remove the permit condition from the MAC-named extended access list:

Switch(config-ext-macl)# no permit any 00c0.00a0.03fa 0000.0000.0000 netbios

This example permits all packets with Ethertype 0x4321:

Switch(config-ext-macl)# permit any any 0x4321 0

You can verify your settings by entering the show access-lists privileged EXEC command.

deny (MAC access-list

configuration)

mac access-list extended

show access-lists

manuals search engine

mac access-list extended

Denies non-IP traffic to be forwarded if conditions are matched.

Creates an access list based on MAC addresses for non-IP traffic.

Displays access control lists configured on a switch.

Catalyst 3750-X and 3560-X Switch Command Reference

permit (MAC access-list configuration)

Catalyst 3750-x