The IESG has received a request from the Multiparty Multimedia Session Control WG (mmusic) to consider the following document: - 'A Network Address Translator (NAT) Traversal Mechanism for Media Controlled by Real-Time Streaming Protocol (RTSP)' <draft-ietf-mmusic-rtsp-nat-21.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 2014-06-20. 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 defines a solution for Network Address Translation (NAT) traversal for datagram based media streams set up and controlled with Real-time Streaming Protocol version 2 (RTSP 2.0). It uses Interactive Connectivity Establishment (ICE) adapted to use RTSP as a signalling channel, defining the necessary RTSP extensions and procedures. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-mmusic-rtsp-nat/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-mmusic-rtsp-nat/ballot/ No IPR declarations have been submitted directly on this I-D.