Introduction - If you have any usage issues, please Google them yourself
P2P internal network transmissions UDP protocol code implementation, U_Trans need to run on the public network of IP devices. U_ServerA is an intranet 1 (such as an office LAN and can be online), and U_ClientB is an intranet 2 (such as a business trip to a hotel LAN and can surf the Internet). U_ServerA and U_ClientB intranet have no direct mapping relations in the corresponding routing settings, and can not communicate directly with the data. U_Trans is responsible for interconnecting U_ServerA, U_ClientB, as a proxy.