how can i map mac address of a PC with IP address on the network so that another PC can not use d ip address a

Answer 1

You define this in the router -- typically listed under access control. Please note that MAC addresses can be easily spoofed so it is best to require another form of authentication for optimal security.

Answer 2

you can always specify mac bound connections in ur router .
but its difficult to map actually since mac addresses can be spoofed.
however u can use the RARP or reverse ARP for keeping track of mac to ip listings .
if 1 mac has more than 1 ip u can be sure someone is spoofing that particular mac address.
i donno if this facility is available in windows , but it surely is available in the linux kernel.