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New Member

Catalyst 3512XL-EN Port Security Problem

A Catalyst 3512XL-EN With IOS 12.0(5.4)WC(1) (C3500XL-C3H2S-M)

Currently FastEther 0/7 is jioned into Vlan 30,Directly connected with a PC and the MAC address of the PC's NIC is 00e0.4c3c.5310,the communication is Ok,and then I used commands flowed:

3512(config)# mac-address-table secure 00e0.4c3c.5310 fastEthernet 0/7

3512(config)#int fastethernet0/7

3512(config-if)# port security max-mac-count 1

3512(config-if)# port security action shutdown

The port statues is still OK, and show running-config interface fastetnernet 0/7 shows:

interface FastEthernet0/7

port security max-mac-count 1

port security action shutdown

switchport access vlan 30

spanning-tree portfast

The show mac-address-table secure interface fastEthernet 0/7 command shows:

Non-static Address Table:

Destination Address Address Type VLAN Destination Port

------------------- ------------ ---- --------------------

00e0.4c3c.5310 Secure 30 FastEthernet0/7

--------------------------------------------------------------------------------------

The problem is :

When I move the port F0/7 from vlan 30 to Vlan 40,the port immediately shut down,I use no shutdown,but the port still doesn't work, Why?

Please Help Me.

Thank you .

Gang Wang @ IDN SYSTEM Beijing CHina

4 REPLIES
New Member

Re: Catalyst 3512XL-EN Port Security Problem

I use similar but the command I use would be

mac-address-table secure 00e0.4c3c.5310 fastEthernet 0/7 VLAN 30.

Have you tried clearing the port config and re-entering?

New Member

Re: Catalyst 3512XL-EN Port Security Problem

Make sure vlan 40 actually exists on the switch. What VTP mode is it in?

New Member

Re: Catalyst 3512XL-EN Port Security Problem

VTP Server, and Vlan 40 is active

New Member

Re: Catalyst 3512XL-EN Port Security Problem

When you entered the secure MAC, did you specify vlan 30 only? Make sure vlan 40 is entered in the table for that MAC.

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