Introduction - If you have any usage issues, please Google them yourself
NAT through NAT divided into four, NAT is a network address to resolve the tensions arising from, but he has brought trouble to P2P, in order to carry out end-to-end connectivity, it must penetrate this layer of NAT, however a variety of NAT, which NAT alone the trouble of crossing, we must first determine the type of NAT, then we will proceed through the code on the UDP Tak crossing, which applies to most of the media across the Liu