MAC Address Filter

[ssieger]

Hi,

on 3750 Stacks, is it possible to prevent that all ports are learning one specific mac address?

[williamsdo]

Hi, I read your question and was courious as to all ports learning the same mac-address. Mac address can be hard coded ( static)onto the switch port or the port can be set to learn a set number of mac address mostly use for port security. Try the switchport commands in the document below, hope it helps.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.1E/native/configuration/guide/port_sec.html

[Kevin Dorrell]

I don't think that's what he meant. I think he was after preventing any port at all from learning a specific MAC address.

[vinoth_g · Accepted solution]

I believe you can do it with the help of mac access-list and VACL. Please take a look at the below link for example

http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_example09186a0080470c39.shtml