Get MAC address from IP address

Had a routing issue the other day, and I was remotely trying to forward a port to a device. I didn’t know the MAC address of the device, and my Home Hub was insisting on that information for the forward destination. I knew the IP address, so there is a simple Windows command to get the MAC address from the IP address:

arp -a <ip_address>

I.e.

arp -a 192.168.1.70

Easy. This command works in Windows as well as Linux! Well theres a thing… It also works in Mac, but you drop the -a parameter:

arp 192.168.1.70

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