[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, 06 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 ----- -- Sebastian Kiesel mailto:sebastian.kiesel@nw.neclab.eu Network Research Division tel:+49-6221-4342-232 fax:+49-6221-4342-155 NEC Laboratories Europe Kurfuerstenanlage 36, 69115 Heidelberg, Germany -- NEC Europe Limited Registered in England 2832014 Registered Office NEC House, 1 Victoria Road, London W3 6BL
- [midcom] fwd: New Version Notification for draft-… Sebastian Kiesel