Re: Security violation occurred, caused by MAC address

Some more information on this issue.

If the machine with Win7 has WOL enabled in BIOS, will send this
0000.0000.0000 mac-address.
I did some tests with a notebook and indeed if WOL is disabled I don't
see 0000.0000.0000 on the port where it is connected.

Anil, do you have a test machine to confirm that this is your case also?
If you don't have a test machine, check on the existing one if WOL is
enabled in BIOS.

Cheers,
Calin C.

On 05/04/2011 09:48 AM, Calin C. wrote:
> 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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>>
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>
>
> Blogs and organic groups at http://www.ccie.net
>
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Received on Wed May 04 2011 - 13:04:31 ART