General discussion

Locked

MAC address search

By Dutchman10 ·
Is there a simple way to search for a MAC address on a network. We have a Windows NT domain and several Cisco switches. we have a problem with one of our NIC's, and we only have the MAC address. I don't have the resources to load fancy software, like Fluke's Network Inspector (as much as I'd like too!). I'm looking for a way to resolve the I.P. from the MAC. I know the reverse can be done simply...
Thanks for any help.

This conversation is currently closed to new comments.

3 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Comments

Collapse -

MAC address search

by bcbvale In reply to MAC address search

Try the following command on each of your Cisco switches;

show arp | include xxxx.xxxx.xxxx

where xxxx.xxxx.xxxx is the mac address of the device you are trying to find.

Hopefully one of your switches had an arp entry containing the ip address for the device you are trying to find.

If you just want to locate the device physically you can run the following command on each of your Cisco switches;

show mac-address-table | include xxxx.xxxx.xxxx

This will tell you what port on your switch the device is connected to.

bcbv

Collapse -

MAC address search

by Dutchman10 In reply to MAC address search

Thank you. This was just what I was looking for.
The 'show arp |include xxxx.xxxx.xxxx' did not work for me, but the 'show mac-address-table' was just what I needed.
Thanks again.

Collapse -

MAC address search

by Dutchman10 In reply to MAC address search

This question was closed by the author

Back to Networks Forum
3 total posts (Page 1 of 1)  

Related Discussions

Related Forums