A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiparty Multimedia Session Control Working
Group of the IETF.
Title : Analysis of Middlebox Interactions for Signaling
Protocol Communication along the Media Path
Author(s) : Brian Stucker
Hannes Tschofenig
Gonzalo Salgueiro
Filename : draft-ietf-mmusic-media-path-middleboxes-07.txt
Pages : 20
Date : 2013-05-30
Abstract:
Middleboxes are defined as any intermediary box performing functions
apart from normal, standard functions of an IP router on the data
path between a source host and destination host. Two such functions
are network address translation and firewalling.
When Application Layer Gateways, such as SIP entities, interact with
NATs and firewalls, as described in the MIDCOM architecture, then
problems may occur in the transport of media traffic when signaling
protocol interaction takes place along the media path, as it is the
case for recent key exchange proposals (such as DTLS-SRTP). This
document highlights problems that may arise. Unfortunately, it is
difficult for the end points to detect or predict problematic
behavior and to determine whether the media path is reliably
available for packet exchange.
This document aims to summarize the various sources and effects of
NAT and firewall control, the reasons that they exist, and possible
means of improving their behavior to allow protocols that rely upon
signaling along the media path to operate effectively.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-mmusic-media-path-middleboxes
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-mmusic-media-path-middleboxes-07
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-mmusic-media-path-middleboxes-07
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
_______________________________________________
I-D-Announce mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
