［转］关于P2P应用中NAT穿透技术的资料

STUN - Simple Traversal of User Datagram Protocol (UDP)
           Through Network Address Translators (NATs)
http://www.ietf.org/rfc/rfc3489.txt

Protocol Complications with the IP Network Address Translator
http://rfc.net/rfc3027.html

Peer-to-Peer communication across Middleboxes
http://midcom-p2p.sourceforge.net/draft-ford-midcom-p2p-00.txt (and 01.txt)

STUN - Simple Traversal of UDP Through NATs
http://www.jdrosen.net/papers/draft-rosenberg-midcom-stun-00.txt (and 01.txt)

关于双层NAT、双层Firewall、双层proxy的穿越的P2P通信技术
http://www.vchelp.net/cndevforum/subject_view.asp?subject_id=116101&page=1

STUN Client and Server Library
http://sourceforge.net/projects/stun/

P2P技术文章列表
http://epan.cnblogs.com/archive/2005/01/27/98414.html