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New Member

How to get IP address with the MAC?

Hi I?ve a switch that happends swap flapping and i need to know what is IP address, but the only clue that i have is MAC address. Does exist any protocool or command to know this info?

Thanks, picledo

2 REPLIES
Hall of Fame Super Bronze

Re: How to get IP address with the MAC?

If the switch is a layer3 device, issue:

show arp | include [mac address]

If the switch is not the layer3 device, find the layer 3 device and issue that command.

New Member

Re: How to get IP address with the MAC?

sh ip arp

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