[midcom] fwd: New Version Notification for draft-kiesel-mmusic-firewall-sip-00

Sebastian Kiesel <sebastian.kiesel@nw.neclab.eu> Mon, 06 July 2009 09:38 UTC

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Date: Mon, 6 Jul 2009 11:35:30 +0200
From: Sebastian Kiesel <sebastian.kiesel@nw.neclab.eu>
To: midcom@ietf.org
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Subject: [midcom] fwd: New Version Notification for draft-kiesel-mmusic-firewall-sip-00
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Hi,
just in case anyone still reading this list:

(announcement also sent to NSIS and MMUSIC lists)

The IETF has worked on several architectures and protocols for dynamic
control of firewalls, namely MIDCOM and NSIS. This draft examines how
they work together with SIP, especially if something goes wrong. The
conclusion is basically that the normal SIP mechanisms are not
sufficient to handle all error conditions in a reasonable way, and
therefore a new SIP precondition should be standardized.
This would be the turf of the mmusic WG, therefore comments should
go to the mmusic list.

Thanks,
Sebastian


----- Forwarded message from IETF I-D Submission Tool <idsubmission@ietf.org>; -----

From: IETF I-D Submission Tool <idsubmission@ietf.org>;
To: sebastian.kiesel@nw.neclab.eu
Subject: New Version Notification for draft-kiesel-mmusic-firewall-sip-00 
Date: Mon,  6 Jul 2009 01:26:17 -0700 (PDT)


A new version of I-D, draft-kiesel-mmusic-firewall-sip-00.txt has been successfuly submitted by Sebastian Kiesel and posted to the IETF repository.

Filename:	 draft-kiesel-mmusic-firewall-sip
Revision:	 00
Title:		 Interaction of dynamic firewall control protocols and SIP
Creation_date:	 2009-07-06
WG ID:		 Independent Submission
Number_of_pages: 21

Abstract:
SIP-based multimedia applications dynamically negotiate parameters
for the related media streams, such as UDP port numbers.  Therefore,
firewalls that want to inspect these streams have to interact with
the session signaling.  Several architectures and protocols have been
developed for the dynamic control of firewalls on the media path, e.
g., MIDCOM, SIMCO, and the NSIS NAT/FW NSLP.  This document
investigates problems with the interaction of standard SIP (as of RFC
3261) and these firewall control protocols, especially with respect
to error handling.  It will be pointed out how existing SIP
extensions can be used for improving the interaction, and which
additional mechanisms need to be specified.  While the actual
specification of such additional mechanisms is out of the scope of
this document, it solicits feedback and discussion.
                                                                                  


The IETF Secretariat.



----- End forwarded message -----


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Sebastian Kiesel            mailto:sebastian.kiesel@nw.neclab.eu
Network Research Division   tel:+49-6221-4342-232   fax:+49-6221-4342-155
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