MAC Address from IP Address

Please help...
I would like a ping routine that returns not only the IP address of the pinged client, but also the client's MAC Address.
Thanks in advance!
-Alex

did you try the arp command in NT?
It does an IP-to-MAC-address resolution using ARP = Address Resolution Protocol.
Given an IP address it spits out the MAC address.

I wasn't specific enough in my original post. I need a ping routine in Visual Basic that will return both the IP and MAC of the client being pinged.
-Alex