The IESG has received a request from the Sip Traversal Required for Applications to Work WG (straw) to consider the following document: - 'Session Traversal Utilities for NAT (STUN) Message Handling for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs)' <draft-ietf-straw-b2bua-stun-05.txt> as Proposed Standard 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 2015-05-13. 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. This document contains a normative reference to an Informational RFC: RFC 7092 Abstract Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs) are often designed to be on the media path, rather than just intercepting signaling. This means that B2BUAs often act on the media path leading to separate media legs that the B2BUA correlates and bridges together. When acting on the media path, B2BUAs are likely to receive Session Traversal Utilities for NAT (STUN) packets as part of Interactive Connectivity Establishment (ICE) processing. This document defines behavior for a B2BUA performing ICE processing. The goal of this draft is to ensure that B2BUAs properly handle STUN messages received as part of the ICE procedures used for NAT and Firewall traversal of multimedia sessions. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-straw-b2bua-stun/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-straw-b2bua-stun/ballot/ No IPR declarations have been submitted directly on this I-D.
