Cisco 7985 phones creating multiple MAC Address

Unanswered Question
Apr 14th, 2008

In our Network, we recently applied Portsecurity on switches(cisco cat4500). The Security policy scheme is Max no. of Mac per port is 2(1 for PC and 1 for Phone) and voilation scheme shutdown. After that All the ports, which are connected to cisco 7985 phones goes down. We checked the port, it shows 3 MAc's hitted on the port one from PC and 2 from Phone. Then changed the policy as no .of mac is 3. Again the problem came, it shows 4 MAC's (3 from phone and 1 from pc).Finally we found the phone creating multiple MACs when we placing muliple call.

Any one know why it is happening...?

I have this problem too.
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arielroza Fri, 11/07/2008 - 14:30

I ran into a similar situation with a customer, and I was told by TAC that this will be fixed on firmware 4.1.8.

Regards, Ariel


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