A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Sip Traversal Required for Applications to Work Working Group of the IETF.
Title : Session Traversal Utilities for NAT (STUN) Message Handling for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs)
Authors : Ram Mohan Ravindranath
Tirumaleswar Reddy
Gonzalo Salgueiro
Filename : draft-ietf-straw-b2bua-stun-04.txt
Pages : 14
Date : 2015-03-09
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.
It is critical that B2BUAs handle these STUN messages properly.
This document defines behavior for a B2BUA performing ICE processing.
The goal of this draft is to ensure that ICE used for NAT and
Firewall traversal of multimedia sessions works when there are B2BUAs
in place and the B2BUAs handle STUN messages properly.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-straw-b2bua-stun/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-straw-b2bua-stun-04
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-straw-b2bua-stun-04
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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