>ARP: In a traditional ethernet network, when you try to connect to a >machine on your local network with the number 10.20.30.40 then your >machine will send out an ARP broadcast packet "whois 10.20.30.40" and >then the machine in question will respond with its MAC address and then >the machines can talk via ethernet. Ain't it the router the one that responds? I mean, it usually has an ARP table to speed up things ;) Regards