May 26, 2018

ARP level “ping” utility

Arping is a util to find out if a specific IP address on the LAN is ‘taken’ and what MAC address owns it. Sure, you could just use ‘ping’ to find out if it’s taken and even if the computer blocks ping and everything else you still get an entry in your arp cache. But what if you aren’t on a routable net? Then you’re screwed. Or you use arping.

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