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Community Member

Catalyst 2950 port security problem

Hi,

I have a CaAT 2950 and I want to configure port security on Fast Eth ports.

I´ve done the following config:

interface FastEthernet0/1

switchport mode access

switchport port-security

no ip address

spanning-tree portfast

In the documentation in Cisco the say that - switchport port-security violation shutdons and switchport port-security maximum 1 - in the default config of the ports, but I gave that comands anyway. When I connect a PC to this port it appears is MAC but if I connect another PC the port doens´t shutdown.

In conclusion:

port doesn´t shitdown when a new MAC connects to the port.

Thanks

Regards

Antonio Sobreiro

1 REPLY
Community Member

Re: Catalyst 2950 port security problem

Hi,

I have met this problem too. I suppose it is a matter of

IOS version. By some versions seems to be "Clear (MAC) Address

on Link Down" default configuration.

I am using 12.1(12c)EA1 now and have no problems.

Regards,

Tomas

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