[rtcweb] Summary of ICE discussion

Magnus Westerlund <magnus.westerlund@ericsson.com> Tue, 04 October 2011 14:31 UTC

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Date: Tue, 4 Oct 2011 16:33:18 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Subject: [rtcweb] Summary of ICE discussion
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WG,

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

Cheers

Magnus Westerlund
as WG chair

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