A new Request for Comments is now available in online RFC libraries. RFC 6544 Title: TCP Candidates with Interactive Connectivity Establishment (ICE) Author: J. Rosenberg, A. Keranen, B. B. Lowekamp, A. B. Roach Status: Standards Track Stream: IETF Date: March 2012 Mailbox: jdrosen@jdrosen.net, ari.keranen@ericsson.com, bbl@lowekamp.net, adam@nostrum.com Pages: 29 Characters: 72318 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-mmusic-ice-tcp-16.txt URL: http://www.rfc-editor.org/rfc/rfc6544.txt Interactive Connectivity Establishment (ICE) defines a mechanism for NAT traversal for multimedia communication protocols based on the offer/answer model of session negotiation. ICE works by providing a set of candidate transport addresses for each media stream, which are then validated with peer-to-peer connectivity checks based on Session Traversal Utilities for NAT (STUN). ICE provides a general framework for describing candidates but only defines UDP-based media streams. This specification extends ICE to TCP-based media, including the ability to offer a mix of TCP and UDP-based candidates for a single stream. [STANDARDS-TRACK] This document is a product of the Multiparty Multimedia Session Control Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements. Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see http://www.ietf.org/mailman/listinfo/ietf-announce http://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see http://www.rfc-editor.org/rfcsearch.html. For downloading RFCs, see http://www.rfc-editor.org/rfc.html. Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC