Re: [rtcweb] Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates?
Justin Uberti <juberti@google.com> Thu, 04 July 2019 00:58 UTC
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From: Justin Uberti <juberti@google.com>
Date: Wed, 03 Jul 2019 17:58:28 -0700
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To: Roman Shpount <roman@telurix.com>
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Subject: Re: [rtcweb] Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates?
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Hmm, that's unfortunate. I think this is a mistake, given that we are about to throw the switch to enable mDNS for 100% of Chrome endpoints; Chrome (and soon all browsers) will have to ignore ice-sip-sdp until this extension spec is written. ice-sip-sdp isn't published yet, so it seems an update to that document could still be a possibility. If that's not an option, putting forth #1 as a specific extension that allows FQDN candidates to be generated in certain situations seems like the right path. On Wed, Jul 3, 2019 at 5:40 PM Roman Shpount <roman@telurix.com> wrote: > Part of the problem is that mmusic have decided to punt on the FQDN > support. In the current mmusic-ice-sip-sdp the final language that was > included: > > <connection-address>: is taken from RFC 4566 [RFC4566]. It is the IP > address of the candidate, allowing for IPv4 addresses, IPv6 addresses, and > fully qualified domain names (FQDNs). When parsing this field, an agent > can differentiate an IPv4 address and an IPv6 address by presence of a > colon in its value - the presence of a colon indicates IPv6. *An agent > generating local candidates MUST NOT use FQDN addresses. An agent > processing remote candidates MUST ignore candidate lines that include > candidates with FQDN *or IP address versions that are not supported or > recognized. *The procedures for generation and handling of FQDN > candidates, as well as, how agents indicate support for such procedures, > need to be specified in an extension specification.* > > So, at this point we have two options: > 1. draft-ietf-rtcweb-mdns-ice-candidates can update ice-sip-sdp and define > how FQDN candidates generated by mdns are handled > 2. write a new draft in mmusic which defines FQDN handling > > In any case some sort of mmusic discussion is needed to reconcile this. > > Best Regards, > _____________ > Roman Shpount > > > On Wed, Jul 3, 2019 at 8:28 PM Justin Uberti <juberti@google.com> wrote: > >> The problem this draft is trying to solve is fairly RTCWEB-specific. If >> there are individual issues to resolve, we can send them out to mmusic for >> discussion, but AFAIK no changes to existing ICE specs are needed. >> >> On Wed, Jul 3, 2019 at 4:26 PM Roman Shpount <roman@telurix.com> wrote: >> >>> Hi All, >>> >>> Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates? >>> This entire draft seems to be ICE/SDP specific and not limited to rtcweb. >>> Also, there are significant interop implications for this draft >>> between browser and non-browser end points which probably warrant larger >>> discussion outside of rtcweb group. I would think mmusic would be a much >>> better place for this draft. I know there is an incentive to complete this >>> draft quickly but this has a potential to break a lot of things (it already >>> did break interop with almost every existing ICE implementation). >>> >>> Regards, >>> _____________ >>> Roman Shpount >>> _______________________________________________ >>> rtcweb mailing list >>> rtcweb@ietf.org >>> https://www.ietf.org/mailman/listinfo/rtcweb >>> >>
- [rtcweb] Request for status update Harald Alvestrand
- Re: [rtcweb] Request for status update Sean Turner
- [rtcweb] Is rtcweb the right place for draft-ietf… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Bernard Aboba
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Nils Ohlmeier
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Bernard Aboba
- Re: [rtcweb] Request for status update Harald Alvestrand
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Harald Alvestrand
- Re: [rtcweb] Is rtcweb the right place for draft-… Philipp Hancke
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Harald Alvestrand
- Re: [rtcweb] Request for status update Adam Roach
- Re: [rtcweb] Request for status update Colin Perkins
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Justin Uberti
- Re: [rtcweb] Is rtcweb the right place for draft-… Adam Roach
- Re: [rtcweb] Is rtcweb the right place for draft-… Roman Shpount
- Re: [rtcweb] Is rtcweb the right place for draft-… Christer Holmberg