The IESG has received a request from the Multiparty Multimedia Session Control WG (mmusic) to consider the following document: - 'Latching: Hosted NAT Traversal (HNT) for Media in Real-Time Communication' <draft-ietf-mmusic-latching-05.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2014-05-28. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document describes behavior of signalling intermediaries in Real-Time Communication (RTC) deployments, sometimes referred to as Session Border Controllers (SBCs), when performing Hosted NAT Traversal (HNT). HNT is a set of mechanisms, such as media relaying and latching, that such intermediaries use to enable other RTC devices behind NATs to communicate with each other. This document is non-normative, and is only written to explain HNT in order to provide a reference to the IETF community, as well as an informative description to manufacturers, and users. Latching, which is one of the components of the HNT components, has a number of security issues covered here. Because of those, and unless all security considerations explained here are taken into account and solved, the IETF advises against use of this mechanism over the Internet and recommends other solutions such as the Interactive Connectivity Establishment (ICE) protocol. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-mmusic-latching/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-mmusic-latching/ballot/ No IPR declarations have been submitted directly on this I-D.
