automatic ip assignment

hello guyz,
I am working on project of automatic ip adress assignment to a local network
when I send a packet with Mac adress I want to get a reply from the other machine
with its ip address ,so how can I achieve that?

maybe this could help :confused:

Hi , Thanx for the reply
But we are considering the situation when there is no DHCP server available,
so you have any other suggestion?