互動式連接建立

互動式連接建立（Interactive Connectivity Establishment），一種綜合性的NAT穿越的技術。

互動式連接建立是由IETF的MMUSIC工作組開發出來的一種framework，可整合各種NAT穿透技術，如STUN、TURN（Traversal Using Relay NAT，中繼NAT實現的穿透）、RSIP（Realm Specific IP，特定域IP）等。該framework可以讓SIP的客戶端利用各種NAT穿透方式打穿遠程的防火牆。

IETF規格

• Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols RFC 5245
• Session Traversal Utilities for NAT (STUN): RFC 5389
• Traversal Using Relays around NAT (TURN): Relay Extensions to STUN RFC 5766

開放原始碼

• [http://www.pjsip.org/pjnath/docs/html/index.htm PJNATH - Open Source ICE, STUN, and TURN Library]
• [https://web.archive.org/web/20090719020238/http://nice.freedesktop.org/wiki libnice: GLib ICE library]

外部連結

• [https://web.archive.org/web/20100311043035/http://www.isoc.org/tools/blogs/ietfjournal/?p=117 IETF Journal article on ICE] - read first
• [https://web.archive.org/web/20090420015002/http://www.jdrosen.net/papers/ice-basic-tutorial.pdf ICE Tutorial]