Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rtsp-nat-evaluation-06
Magnus Westerlund <magnus.westerlund@ericsson.com> Thu, 23 May 2013 09:38 UTC
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Date: Thu, 23 May 2013 11:37:57 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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To: Ari Keränen <ari.keranen@ericsson.com>
References: <518BB81A.8090608@cisco.com> <51965190.10900@ericsson.com>
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Cc: mmusic <mmusic@ietf.org>, draft-ietf-mmusic-rtsp-nat-evaluation@tools.ietf.org
Subject: Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rtsp-nat-evaluation-06
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Thanks Ari, I will try to role a new version within the next few days addressing your comments. If there are any issues in implementing them I will come back with such discussion. Cheers Magnus On 2013-05-17 17:49, Ari Keränen wrote: > Hi, > > I had a quick read over the draft and have a few comments: > > 3. Requirements on NAT-Traversal > > 1. Must work for all flavors of NATs, including NATs with address > and port restricted filtering. > > The term used by RFC 4787 is "Address and Port-Dependent Filtering" > > > 3. Requirements on NAT-Traversal > > The list of feature requirements for RTSP NAT solutions are given > below: > > I guess this should say "RTSP NAT traversal solutions". > > > * Address discovery for NAT traversal should take automatically, > if possible > > I assume this means the discovery of the address assigned by the NAT? > Maybe say that explicitly, e.g., "Discovery of the address(es) assigned > by NAT should happen automatically if possible". > > > 4.7.4. Security Considerations > > An ALG will not work whit deployment of end-to-end RTSP signaling > > Typo: whit > > > 4.9.1. [TURN] Introduction > > On the external side this is > limited to the source address/port pair of the first packet arriving > on the binding. After the first packet has arrived the mapping is > "locked down" to that address. Packets from any other source on this > address will be discarded. > > This doesn't sound right. This behavior was changed (eventually into > using permissions) somewhere back in draft-rosenberg-midcom-turn-06. See > http://tools.ietf.org/html/rfc5766#section-2.3 for up-to-date behavior. > Check also steps 5 & 7 in the next section and section 4.9.4 for more > lock down text. > > > 6. Comparison of NAT traversal techniques > > C2: How Robust is the solution to changing NAT behaviors > > Since the answer is yes/no, maybe this should be "is the solution > robust..." > > > 10. Informative References > > [STUN-IMPL] > "Open Source STUN Server and Client, http:// > www.vovida.org/applications/downloads/stun/index.html", > June 2007. > > This site seems to be unavailable nowadays. Better reference would be > "http://sourceforge.net/projects/stun/". And of course, there are plenty > of other open source STUN implementations, but likewise there are for > ICE (PJNATH, libnice, ice4j, etc.) if we want to use that as an argument. > > > Cheers, > Ari (as individual) > -- Magnus Westerlund ---------------------------------------------------------------------- Multimedia Technologies, Ericsson Research EAB/TVM ---------------------------------------------------------------------- Ericsson AB | Phone +46 10 7148287 Färögatan 6 | Mobile +46 73 0949079 SE-164 80 Stockholm, Sweden| mailto: magnus.westerlund@ericsson.com ----------------------------------------------------------------------
- [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rtsp-n… Flemming Andreasen
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Flemming Andreasen
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Ari Keränen
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Ari Keränen
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Magnus Westerlund
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Magnus Westerlund
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Magnus Westerlund
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Ari Keränen
- Re: [MMUSIC] 1 Week WGLC for draft-ietf-mmusic-rt… Magnus Westerlund