Couldn't decide the correct place to post this, so it ended up here. I'm looking for a way to get the MAC addresses for about 50 computers, Macs and PCs, on the local area network here. I have tried, in Terminal, the arp -a, and it give about a dozen different computers but not all. I have a list of all the IPs and was wondering if there is a command that would incorporate the IP, that would reach out and get the MAC address of computer with that IP. Thanks for any help or advice.
Jim
Jim