| SIP穿越NAT方案的研究 |
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| 作者单位： | 苏州大学计算机科学与计算系 |
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| 摘 要： | SIP(会话建立协议)是IETF定义的IP多媒体通信控制协议,也是下一代网络(NGN)的核心控制协议,SIP音视频通信的快速发展与IPv地址资源不足的矛盾提出了NAT穿越问题。针对SIP信令和媒体流的NAT穿越问题,阐述了现有穿越的解决方案。如:STUN。
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| 关 键 词： | 会话建立协议 网络地址翻译 VoIP STUN |
Research on NAT Traversal Based on SIP |
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| Authors: | WANG Qing-nian |
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| Abstract: | SIP is an IETF defined IP multimedia communication control protocol and the key protocol of the next generation network(NGN), As a result of the inconsistency between the rapid development of SIP-based audio/video communication applications and the shortage of IPv4 adresses, the NAT traversal problem has been raised , In the paper , the NAT traversal problem of SIP singnalling and media stream is explained firstly.Then an overview is given to the existing solutions of media stream traversal.Finally a STUN protocol based on implementation is detailed to be applicable to enterprise networks. |
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| Keywords: | SIP NAT VoIP STUN |
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