ICE:解决NAT穿透问题的方法ThisdocumentdescribesaprotocolforNetworkAddressTranslator(NAT)traversalforUDP-basedmultimediasessionsestablishedwiththeoffer/answermodel.ThisprotocoliscalledInteractiveConnectivityEstablishment(ICE).ICEmakesuseoftheSessionTraversalUtilitiesforNAT(STUN)protocolanditsextensi