IP address from MAC address

[SGT_JAX]

Is it possible to find the IP address of a computer on your lan network by mac address?

[atomizer]

it sure looks like you can

[SGT_JAX]

I have search google but this is my problem. The mac address that I have is on a different subnet than I'm currently on. I ran netmon on my exchange box and this particular mac address is banging my box. I have noticed also that I have a lot of spamming going on on this box. So if I can get a IP address from mac address then I can go find the bad computer.

[boggen]

ARP command

http://www.windowsitlibrary.com/Content/386/08/2.html