Inverse ARP query

[Brett Glass]

Is there a command in FreeBSD that can be used to do an inverse ARP
query (that is, supply a MAC address and have the device respond
with its IP)? I have several hardware devices here whose IP addresses
I do not know, but their MAC addresses are printed on the labels.
To reprogram and reset them, I need their IPs so that I can get into
them via a telnet or Web interrace. I could scan for the devices'
addresses, but this would take months. But if they respond to
inverse ARP queries, I can find out in an instant what their
IP addresses are.

--Brett Glass