Re: [rtcweb] TURN server address via DHCP, WGLC of draft-ietf-rtcweb-use-cases-and-requirements-11
"Karl Stahl" <karl.stahl@intertex.se> Mon, 23 September 2013 19:57 UTC
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From: Karl Stahl <karl.stahl@intertex.se>
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Date: Mon, 23 Sep 2013 21:57:47 +0200
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Cc: "'Cullen Jennings (fluffy)'" <fluffy@cisco.com>, rtcweb@ietf.org
Subject: Re: [rtcweb] TURN server address via DHCP, WGLC of draft-ietf-rtcweb-use-cases-and-requirements-11
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CB > I have not read the draft but would like to make it clear that no 2g/3g/4g provider uses dhcp over the mobile network so this dhcp solution would not apply. [Karl] True, my proposed requirement was: > The browser must support retrieving TURN server addresses via DHCP or a similar mechanism (maybe RA - Router Advertisement - for IPv6, an addition to the IPCP protocol like RFC1877 for PPPoE, or whatever method the mobile OTT channels use). or whatever method the mobile OTT channels use is of course not proper language 3G/4G do provide IP and DNS addresses by some method and the same is proposed for a network provided TURN server address. Actually, it is up to the OS to retrieve, and the browser should only use it for its ICE implementation. If (hopefully) such network provided TURN server addresses becomes available, the next suggested browser requirement becomes important: > The browser should select which available TURN server address to > use in the following priority order, where ICE could be used to try several: > > 1) TURN server address configured in the browser by the user (special cases, > normally not used) > 2) TURN server address configured by the network administrator via an admin > policy template > 3) TURN server address supplied by DHCP or similar automatic network method > 4) TURN server address being supplied by the web application I believe step 2) and 4) is implemented in Chrome today /Karl Från: cb.list6 [mailto:cb.list6@gmail.com] Skickat: den 23 september 2013 18:58 Till: Karl Stahl Kopia: rtcweb@ietf.org; Cullen Jennings (fluffy) Ämne: Re: [rtcweb] TURN server address via DHCP, WGLC of draft-ietf-rtcweb-use-cases-and-requirements-11 On Sep 20, 2013 8:43 AM, "Karl Stahl" <karl.stahl@intertex.se> wrote: > > For NAT/Firewall traversal WebRTC uses ICE, where the browser today gets the > TURN server address from the web application, or gets it configured by a LAN > admin via an admin policy template. > > However, there is a need (motivations below) for the TURN server address to > be provided via DHCP (and maybe RA - Router Advertisement - for IPv6, and > the OTT channel in mobiles have their own method Ive been told). Simply > put, just as you often get your IP-address, DNS address, etc. automatically > from the network access, you should also get the TURN server address. > > I suggest the following is added to the end of use case (which today is > about multiple TURN servers) > 3.2.4. Simple Video Communication Service, global service provider > 3.2.4.1. Description > ... > "A network service provider must be able to automatically supply a TURN > server addresses to the browser when accessing a network. The address may > come via DHCP or a similar mechanism (maybe RA - Router Advertisement - for > IPv6, an addition to the IPCP protocol like RFC1877 for PPPoE, or whatever > method the mobile OTT channels use). The mechanism should be similar to > automatically getting the IP-address, DNS address, etc.. and need extensions > to current recommendations/standards. > > There are several reasons for a network service provider to supply a TURN > server as part of his offered access: > - to keep media paths short, specifically not sending media outside its own > network to some distant application provided TURN server > - to support mobility, i.e. you may want to move from a LAN with a > configured TURN server to accessing via WiFi or 3G/4G OTT channels I have not read the draft but would like to make it clear that no 2g/3g/4g provider uses dhcp over the mobile network so this dhcp solution would not apply. CB > - to offer a media path with better quality (than best effort data traffic). > Getting WebRTC-ready access and we look forward to telepresence for > everyone. > > An enterprise network that want to keep a restrictive firewall not allowing > UDP traffic, could provide a real-time path using a TURN server paralleling > the firewall, instead of tunneling RTP through always open http or https > ports resulting in RTP media over TCP with severe quality problems from > TCP retransmissions of dropped packets. The TURN server address is most > easily provided in the same way as the IP address and DNS address. (That > would also put the right party in control The network provider decides > what is allowed on his network.) > > This browser should select which available TURN server address to use in the > following priority order, where ICE could be used to try several: > > 1) TURN server address configured in the browser by the user (special cases, > normally not used) > 2) TURN server address configured by the network administrator via an admin > policy template > 3) TURN server address supplied by DHCP or similar automatic network method > 4) TURN server address being supplied by the web application" > > Two new requirements can be extracted: > " ---------------------------------------------------------------- > F40 The browser must support retrieving TURN server addresses via > DHCP or a similar mechanism (maybe RA - Router Advertisement - for IPv6, an > addition to the IPCP protocol like RFC1877 for PPPoE, or whatever method the > mobile OTT channels use). The mechanism should be similar to automatically > getting the IP-address, DNS address, etc.. > ---------------------------------------------------------------- > F42 This browser should select which available TURN server address to > use in the following priority order, where ICE could be used to try several: > > 1) TURN server address configured in the browser by the user (special cases, > normally not used) > 2) TURN server address configured by the network administrator via an admin > policy template > 3) TURN server address supplied by DHCP or similar automatic network method > 4) TURN server address being supplied by the web application > ----------------------------------------------------------------" > > I suppose this also will add to: > 5. IANA Considerations > TBD > > /Karl > > > -----Ursprungligt meddelande----- > Från: rtcweb-bounces@ietf.org [mailto:rtcweb-bounces@ietf.org] För Cullen > Jennings (fluffy) > Skickat: den 4 september 2013 18:24 > Till: rtcweb@ietf.org > Ämne: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-and-requirements-11 > > > We would like to start a working group last call of > draft-ietf-rtcweb-use-cases-and-requirements-11. > > Please send comments by the end of the day on September 21. > > Thank you, > > The chairs . > > > > > _______________________________________________ > 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
- [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-and-… Cullen Jennings (fluffy)
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Stefan Håkansson LK
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Magnus Westerlund
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Bernard Aboba
- [rtcweb] TURN server address via DHCP, WGLC of dr… Karl Stahl
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Hutton, Andrew
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Harald Alvestrand
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Bernard Aboba
- [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-and-… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Marc Abrams
- [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-use-c… Karl Stahl
- [rtcweb] [mmusic] TURN server address via DHCP, W… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Hutton, Andrew
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Marc Abrams
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Hutton, Andrew
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Hutton, Andrew
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Sergio Garcia Murillo
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Tirumaleswar Reddy (tireddy)
- Re: [rtcweb] TURN server address via DHCP, WGLC o… cb.list6
- Re: [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-u… Dan Wing
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Karl Stahl
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Chenxin (Xin)
- Re: [rtcweb] additional ICE info Bernard Aboba
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Karl Stahl
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Chenxin (Xin)
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Karl Stahl
- Re: [rtcweb] additional ICE info Dan Wing
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Cullen Jennings (fluffy)
- Re: [rtcweb] additional ICE info Harald Alvestrand
- Re: [rtcweb] additional ICE info Dan Wing
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Harald Alvestrand
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Markus.Isomaki
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Chenxin (Xin)
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Karl Stahl
- Re: [rtcweb] WGLC of draft-ietf-rtcweb-use-cases-… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… cb.list6
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Cullen Jennings (fluffy)
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Justin Uberti
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Karl Stahl
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Jeremy Laurenson (jlaurens)
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Justin Uberti
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Martin Thomson
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Bernard Aboba
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Jeremy Laurenson (jlaurens)
- [rtcweb] [mmusic] TURN server address via DHCP, W… Karl Stahl
- Re: [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-u… Magnus Westerlund
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Saverio Vardaro
- Re: [rtcweb] additional ICE info Martin Thomson
- Re: [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-u… Karl Stahl
- Re: [rtcweb] [mmusic] TURN server address via DHC… Cullen Jennings (fluffy)
- Re: [rtcweb] [mmusic] TURN server address via DHC… Karl Stahl
- Re: [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-u… Christer Holmberg
- Re: [rtcweb] [mmusic] TURN server address via DHC… Justin Uberti
- Re: [rtcweb] [mmusic] TURN server address via DHC… cb.list6
- [rtcweb] Payload Types assignments was Re: SV: [m… Magnus Westerlund
- Re: [rtcweb] TURN server address via DHCP, WGLC o… Karl Stahl
- Re: [rtcweb] [mmusic] TURN server address via DHC… Karl Stahl
- Re: [rtcweb] [mmusic] WGLC of draft-ietf-rtcweb-u… Karl Stahl
- Re: [rtcweb] [mmusic] TURN server address via DHC… Justin Uberti
- Re: [rtcweb] Payload Types assignments was Re: SV… Karl Stahl
- Re: [rtcweb] Payload Types assignments was Re: SV… Harald Alvestrand
- Re: [rtcweb] Payload Types assignments was Re: SV… BeckW
- Re: [rtcweb] Payload Types assignments was Re: SV… Ted Hardie
- Re: [rtcweb] Payload Types assignments was Re: SV… BeckW
- Re: [rtcweb] Payload Types assignments was Re: SV… Harald Alvestrand
- Re: [rtcweb] Payload Types assignments was Re: SV… Martin Thomson
- Re: [rtcweb] Payload Types assignments was Re: SV… Harald Alvestrand
- Re: [rtcweb] Payload Types assignments was Re: SV… BeckW
- Re: [rtcweb] Payload Types assignments was Re: SV… Martin Thomson
- Re: [rtcweb] Payload Types assignments was Re: SV… Ted Hardie
- Re: [rtcweb] Payload Types assignments was Re: SV… Lee, Richard FTC
- Re: [rtcweb] Payload Types assignments was Re: SV… Dan Wing
- Re: [rtcweb] Payload Types assignments was Re: SV… BeckW
- Re: [rtcweb] Payload Types assignments was Re: SV… Karl Stahl
- [rtcweb] [mmusic] Anycast discovery, Was TURN ser… Karl Stahl
- [rtcweb] [avtext] Payload Types assignments was R… Karl Stahl
- [rtcweb] [tram] Payload Types assignments Karl Stahl
- Re: [rtcweb] [tram] Payload Types assignments Colin Perkins
- Re: [rtcweb] [tram] Payload Types assignments Karl Stahl
- Re: [rtcweb] [tram] Payload Types assignments Magnus Westerlund
- Re: [rtcweb] [tram] Payload Types assignments Charles Eckel (eckelcu)
- Re: [rtcweb] [tram] Payload Types assignments Colin Perkins
- Re: [rtcweb] [tram] Payload Types assignments Harald Alvestrand
- Re: [rtcweb] [tram] Payload Types assignments Karl Stahl
- Re: [rtcweb] [tram] Payload Types assignments Karl Stahl
- Re: [rtcweb] [tram] Payload Types assignments Karl Stahl
- Re: [rtcweb] [tram] Payload Types assignments Harald Alvestrand
- Re: [rtcweb] [tram] Payload Types assignments Karl Stahl