Solved: Finding client port by mac address - Cisco Community

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Can someone tell me how you can find the port a client is on, on a 4006 catalyst, just by using the mac address. I usually find it by unplugging the network cable on the client while logged onto the switch to see what port disconnects. Any help is appreciated.

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D-

Just do a show cam xx-xx-xx-xx-xx-xx

where x = mac address..

Let me know if this helps...

-Bo

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5 Replies 5

D-

Just do a show cam xx-xx-xx-xx-xx-xx

where x = mac address..

Let me know if this helps...

-Bo

If you have a Supervisor 3 Engine, do a "sh mac-address-table address xxxx.xxxx.xxxx"

Thanks. It did work and I really appreciate the help everybody.

Try this;

at the switch; sh cam dynamic (port #) = mac address

at the router; (same segment) sh arp | include (mac addr) = ip address

at a cmd do a , nbtstat -A (ip addr)

I believe what you're looking for is this:

show cam {dynamic | static | permanent | system} [{mod/port} | vlan]

AND/OR

show cam mac_addr [vlan]

Hope this helps..

- Matt