Mike Szumlinski <szumlins@mac.com> writes: > Does anyone know how to scan a known MAC address to see what IP it > has? Is there a nifty *nix tool that does this and I don't know how to? tcpdump? Wait to see a packet from that MAC address, notice its IP address. Any such tool will only work for machines on the same Ethernet wire as you (plus anything connected to a hub connected to that wire).