How do you find switch port that computer is on using mac address with cisco 3560 switch information provided?

Answer 1

1. From a router or layer 3 switch...ping the ip address.

2. Do show arp | include "type ip address here"

This will give you the mac address associated with the arp.

3. Do a show mac address-table | include "type mac address learned from 2."

This will show you what vlan it is on and what trunk it used ie. gig 2/3 or gig 0/2.

4. Next you do a show cdp neighbor detail to learn ip address of next switch.

5. Repeat step 1.

6. Repeat step 2.

7. Repeat step 3. If mac address is on a trunk port....you have to do step 4 and go to next switch. If mac addess is on switchport....you have found port workstation is plugged into.

Cheers