Re: [rtcweb] Summary of ICE discussion
Cullen Jennings <fluffy@cisco.com> Tue, 04 October 2011 22:37 UTC
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From: Cullen Jennings <fluffy@cisco.com>
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Date: Tue, 04 Oct 2011 16:40:53 -0600
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References: <4E8B192E.80809@ericsson.com>, , <CALiegfmnxO+BrfycOmL=hptBFdcEpsLeBn=zsJTX=ivKBBumWw@mail.gmail.com>, <BLU152-W139AA2913C1CFFDB50726193FB0@phx.gbl> <BLU152-W2342F5823933FA1F2B9F9C93FB0@phx.gbl>
To: Bernard Aboba <bernard_aboba@hotmail.com>
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Subject: Re: [rtcweb] Summary of ICE discussion
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Could you say more... I'm not following your logic. On Oct 4, 2011, at 10:47 AM, Bernard Aboba wrote: > In particular, I'm concerned about vulnerabilities created by multiplexing > audio and video on the same port. When that is done, the ICE procedure loses > some of its DoS prevention properties. > > From: bernard_aboba@hotmail.com > To: magnus.westerlund@ericsson.com > Date: Tue, 4 Oct 2011 09:28:34 -0700 > CC: rtcweb@ietf.org > Subject: Re: [rtcweb] Summary of ICE discussion > > I think this is a good summary of where we are with respect to ICE, and > since there are no good alternatives on the table, it seems reasonable to > move on to the next step. > > IMHO, this would involve a more detailed analysis of the threats and what > needs to be done to resolve them. > > In particular, the statement "STUN Connectivity Check MUST have succeeded" is > necessary but not sufficient. We need to get into a discussion of the specific > conditions under which media can be sent, and what attacks are still > possible. For example, there exist public STUN servers on the Internet, and > RTCWEB should not permit the browser to execute a DoS attack on these servers. > Also, it would be desirable to prevent a browser from sending much more > bandwidth than the receiver has consented to; however, because signaling > is largely opaque to the browser, it is not obvious (at least to me) how to > prevent this. > > > 2011/10/4 Magnus Westerlund <magnus.westerlund@ericsson.com>: > > I have bellow tired to summarize the result of the ICE discussion. This > > is intended as furthering this discussion and form a basis for going > > forward in the consensus process. I do expect people that disagree with > > my summary of the discussion to speak up. > > > > Major requirements > > > > - Need for data transmission consent for protocols using UDP as the > > traffic receiver needs to consent to receiving the data > > > > - Perform NAT and FW traversal when ever needed > > > > - Support IPv4 to IPv6 transition > > > > Desired behavior: > > > > - Be interoperable with deployed legacy systems as SIP Trunk, PSTN > > gateways, VoIP phones. > > > > WG chairs conclusion of discussion so far: > > > > - ICE is so far the only solution that provides the security goals and > > have any legacy deployment. > > > > - ICE usage will require that STUN connectivity MUST have succeeded > > prior to any data transmission to fulfill security goals. > > > > * The Browser will enforce this requirement to prevent being an attack > > vector in all cases. > > > > - If anyone can find a solution that fulfill the security goals and have > > improved legacy interoperability people would be interested in that > > solution. So far RTCP has been discarded as insufficient. > > > > - Media Gateway can support a reduced functionality set from Full ICE > > > _______________________________________________ rtcweb mailing list rtcweb@ietf.org https://www.ietf.org/mailman/listinfo/rtcweb > _______________________________________________ > rtcweb mailing list > rtcweb@ietf.org > https://www.ietf.org/mailman/listinfo/rtcweb
- Re: [rtcweb] Summary of ICE discussion Randell Jesup
- [rtcweb] Summary of ICE discussion Magnus Westerlund
- Re: [rtcweb] Summary of ICE discussion Iñaki Baz Castillo
- Re: [rtcweb] Summary of ICE discussion Randell Jesup
- Re: [rtcweb] Summary of ICE discussion Olle E. Johansson
- Re: [rtcweb] Summary of ICE discussion Eric Rescorla
- Re: [rtcweb] Summary of ICE discussion Cary Bran (cbran)
- Re: [rtcweb] Summary of ICE discussion Hadriel Kaplan
- Re: [rtcweb] Summary of ICE discussion Bernard Aboba
- Re: [rtcweb] Summary of ICE discussion Bernard Aboba
- Re: [rtcweb] Summary of ICE discussion Cullen Jennings
- Re: [rtcweb] Summary of ICE discussion Cullen Jennings
- Re: [rtcweb] Summary of ICE discussion Matthew Kaufman
- Re: [rtcweb] Summary of ICE discussion Matthew Kaufman
- Re: [rtcweb] Summary of ICE discussion Matthew Kaufman
- Re: [rtcweb] Summary of ICE discussion Bernard Aboba
- Re: [rtcweb] Summary of ICE discussion Matthew Kaufman
- Re: [rtcweb] Summary of ICE discussion Ravindran Parthasarathi
- Re: [rtcweb] Summary of ICE discussion Roman Shpount
- Re: [rtcweb] Summary of ICE discussion Magnus Westerlund
- Re: [rtcweb] Summary of ICE discussion Magnus Westerlund
- Re: [rtcweb] Summary of ICE discussion Harald Alvestrand
- Re: [rtcweb] Summary of ICE discussion Harald Alvestrand
- Re: [rtcweb] Summary of ICE discussion Jonathan Lennox
- Re: [rtcweb] Summary of ICE discussion Ravindran Parthasarathi
- Re: [rtcweb] Summary of ICE discussion Bernard Aboba
- Re: [rtcweb] Summary of ICE discussion Harald Alvestrand
- Re: [rtcweb] Summary of ICE discussion Cullen Jennings
- Re: [rtcweb] Summary of ICE discussion Paul Hoffman
- Re: [rtcweb] Summary of ICE discussion sebastien.cubaud
- Re: [rtcweb] Summary of ICE discussion Iñaki Baz Castillo
- [rtcweb] Sebastien Cubaud's non-ICE mechanism (Re… Harald Alvestrand
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… sebastien.cubaud
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Eric Rescorla
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Iñaki Baz Castillo
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Randell Jesup
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Jonathan Rosenberg
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Randell Jesup
- Re: [rtcweb] Summary of ICE discussion sebastien.cubaud
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Iñaki Baz Castillo
- Re: [rtcweb] Summary of ICE discussion Iñaki Baz Castillo
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Tim Panton
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… sebastien.cubaud
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] Sebastien Cubaud's non-ICE mechanism… sebastien.cubaud
- Re: [rtcweb] Summary of ICE discussion sebastien.cubaud