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TURN - 版本历史
2026-07-17T19:22:45Z
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imported>Cwek：加入{{No footnotes}}和{{Refimprove}}标记
2025-11-27T01:09:07Z
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{{NoteTA|G1=IT}}<br />
'''TURN'''（全名'''Traversal Using Relay around NAT'''），是一種資料傳輸協議（data-transfer protocol）。允許在TCP或UDP的連線上跨越[[网络地址转换|NAT]]或[[防火牆]]。<br />
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TURN是一个client-server协议。TURN的NAT穿透方法與[[STUN]]類似，都是通過取得應用層中的公有地址達到NAT穿透。但實現TURN client的終端必須在通訊開始前與TURN server進行交互，並要求TURN server產生"relay port"，也就是relayed-transport-address。這時TURN server會建立peer，即遠端端點（remote endpoints），開始進行中繼（relay）的動作，TURN client利用relay port將資料傳送至peer，再由peer轉傳到另一方的TURN client。<br />
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== 參見 ==<br />
*[[NAT穿越]]<br />
*[[STUN|Session Traversal Utilities for NAT]]（STUN）<br />
*[[互動式連接建立|Interactive Connectivity Establishment]]（ICE）<br />
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== 外部連結 ==<br />
* RFC 5766 Traversal Using Relay NAT (TURN)<br />
* [http://www.youtube.com/watch?v=9MWYw0fltr0&eurl=http%3A%2F%2Fwww%2Evoip%2Dnews%2Ecom%2Ffeature%2Ftop%2Dvoip%2Dvideos%2D051707%2F Yahoo! - Director of Engineering explaining STUN and TURN (Video)]{{Wayback|url=http://www.youtube.com/watch?v=9MWYw0fltr0&eurl=http%3A%2F%2Fwww%2Evoip%2Dnews%2Ecom%2Ffeature%2Ftop%2Dvoip%2Dvideos%2D051707%2F |date=20141008235326 }}<br />
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=== 实现 ===<br />
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* [http://numb.viagenie.ca/ Numb]{{Wayback|url=http://numb.viagenie.ca/ |date=20090508053051 }}是一種免費的STUN/TURN server.<br />
* [http://www.turnserver.org/ TurnServer]{{Wayback|url=http://www.turnserver.org/ |date=20090101121027 }} - OpenSource TURN server.<br />
* [http://www.resiprocate.org/reTurn_Overview reTurn]{{Wayback|url=http://www.resiprocate.org/reTurn_Overview |date=20090623005912 }} - opensource STUN/TURN server and client library（C++）<br />
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[[Category:网际协议]]<br />
[[Category:网络地址转换]]</div>
imported>Cwek