UDP through NAT on the Chinese data on the network is small, only " <P2P之UDP穿透NAT的原理与实现(shootingstars)> " This article is the actual reference value. I have the past two years has also been engaged in P2P aspects of development work, more representative of the individual development of BitTorrent download software- FlashBT (metamorphosis Express).

P2P\UDP-NAT\Exception.h
...\.......\P2PClient\P2PClient.cpp
...\.......\.........\P2PClient.dsp
...\.......\.........\P2PClient.dsw
...\.......\.........\P2PClient.suo
...\.......\.........\Release\startclient.bat
...\.......\...Server\P2PServer.cpp
...\.......\.........\P2PServer.dsp
...\.......\.........\P2PServer.dsw
...\.......\.........\P2PServer.suo
...\.......\.........\Release\startsvr.bat
...\.......\P2P之UDP穿透NAT的原理与实现 － 增强篇.TXT
...\.......\proto.h
...\.......\UDP穿越NAT - 原始文章.TXT
...\.......\源码修改的说明.txt
...\.......\P2PClient\Debug
...\.......\.........\Release
...\.......\...Server\Debug
...\.......\.........\Release
...\.......\P2PClient
...\.......\P2PServer
...\UDP-NAT
P2P

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