基于探测对Symmetric NAT与端口受限NAT的穿透方案  

Detection-based traversal solution for connection between symmetric NAT and port-restricted NAT

作　　者：王勇[1] 崔修涛[1] 吕钊[1] 李子成[1] 

机构地区：[1]华东师范大学计算机科学系,上海200062

出　　处：《计算机应用》2006年第4期922-925,共4页journal of Computer Applications

基　　金：上海市科技攻关计划资助项目(035115038)

摘　　要：在采用P2P架构的网络音视频应用中,不可避免会涉及到NAT穿透的问题。IETF为此开发了STUN标准,但是STUN协议中提出的方案无法穿透SymmetricNAT。通过分析对称NAT原理以及一些实际网络中的NAT布署的情况,提出了基于探测的穿透方案。经过多种网络环境的测试,达到了预计的目标。To resolve the problem of NAT traversal in the applications of audio and video based on P2P technology, STUN as a IETF standard was proposed. But it can＇t traverse the Symmetric NAT. A new solution to resolve the problem was presented by detection with the analysis of Symmetric NAT and the its deploy. Some tests were taken in real situations and the results reached the goal.

关 键 词：CONE NAT 端口受限 对称NAT 穿透 STUN 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]