Hi all, im working on a security product and i need to know how to make a prog that will allow me to filter out MAC addresses. I was hoping someone here would point me in the right direction. I do it all the time on my router, i'd just like to know if there is some way to tell the MAC address of a connected machine. Suppose i have a UDP program that binded to a port which another TCP program connected to, i'd like to find out what that MAC address is of the machine connected. Any help on this is greatly appreciated, google isnt helping much. Thanx in advance!