Re: Security violation occurred, caused by MAC address

Hello,

I also encounter this issue and what I found until now is that when a
Win7 machine "wake-up" from hibernate, it announce this 0000.0000.0000
mac-address, instead of its real one.

For now, I don't have too many details, but I'm looking into this issue
and if I find something I'll share it here.

Cheers,
Calin C.

On 05/04/2011 08:04 AM, cityworm wrote:
> Hi All
>
> Has anybody faced this Zero Mac address issue thereafter putting a port on
> err-disable state on Cisco Switch 4500 the PC& Cisco IP phone connected to
> Port 2/26 and PC is having Windows 7 OS
>
> Zero Mac Address is Acting as 3rd Mac Address and the port comes to
> Err-disable state.
>
> May 3 10:05:29.082: %PM-4-ERR_DISABLE: psecure-violation error detected on
> Gi2/26, putting Gi2/26 in err-disable state
> May 3 10:05:29.086: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation
> occurred, caused by MAC address 0000.0000.0000 on port GigabitEthernet2/26.
>
>
> Following are the configuration of Port security
>
> interface GigabitEthernet2/26
> switchport access vlan 11
> switchport mode access
> switchport voice vlan 21
> switchport port-security maximum 2
> switchport port-security mac-address sticky
> switchport port-security mac-address sticky 0014.2119.7b84
> switchport port-security mac-address sticky 0034.11b2.2fa5 vlan voice
> end
>
> Regards
> Anil
>
>
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Received on Wed May 04 2011 - 09:48:20 ART