Introduction - If you have any usage issues, please Google them yourself
An implementation features [1] server-side to the client send a broadcast message [2] has NAT under two different local area network P2P client to a text message communication [3] has NAT under two different local area network P2P client files transmission. 2 the use of technology [1] based on C/S modes of communication, UDP protocol to communicate [2] the use of Server-side building P2Psession, based on the UDP Protocol through NAT 2 client communications [3] 2 Client to establish TCP connection, reliable file transfer.