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Mac-Address Table Issue

bob.bartlett
Level 1
Level 1

I have an environment with Cisco 7941 phones and Dell Notebooks with port replicators.  When i undock a notebook and plug it in elsewhere in the network the MAC-Address Table entry does not age out and consequently the notebook is unusable due to conflicting MAC-Address entry locations.  The only way i can get that MAC-Address out is to shut the port down and bring it back up.  My assumption is that the phone will not release the MAC-Address and therefore popultates the Table with that address and won't let it age out.  Any ideas???                  

2 Replies 2

Reza Sharifi
Hall of Fame
Hall of Fame

What type of Cisco switch are you using and what version of IOS?

Can you post the port config from the switch with this issue?

it is a Cisco 3560G with version  12.2(58)SE1 and the configuration on the port is.

switchport mode access

switchport access vlan 222

switchport voice vlan 23

authentication host-mode multi-auth

authentication open

authentication order mab dot1x

authentication priority dot1x mab

authentication port-control auto

mab

dot1x pea authenticator

spanning-tree portfast

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