Re: [v6ops] Need ref to 3GPP spec for the use of DHCPv6 Prefix Delegation, e.g. for smartphone tethering
Vízdal Aleš <ales.vizdal@t-mobile.cz> Mon, 07 October 2013 20:51 UTC
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From: Vízdal Aleš <ales.vizdal@t-mobile.cz>
To: Alexandru Petrescu <alexandru.petrescu@gmail.com>, "Rajiv Asati (rajiva)" <rajiva@cisco.com>, Mikael Abrahamsson <swmike@swm.pp.se>
Date: Mon, 07 Oct 2013 22:51:25 +0200
Thread-Topic: [v6ops] Need ref to 3GPP spec for the use of DHCPv6 Prefix Delegation, e.g. for smartphone tethering
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Cc: "v6ops@ietf.org" <v6ops@ietf.org>
Subject: Re: [v6ops] Need ref to 3GPP spec for the use of DHCPv6 Prefix Delegation, e.g. for smartphone tethering
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> -----Original Message----- > From: Alexandru Petrescu [mailto:alexandru.petrescu@gmail.com] > Sent: Monday, October 07, 2013 6:51 PM > To: Vízdal Aleš; Rajiv Asati (rajiva); Mikael Abrahamsson > Cc: v6ops@ietf.org > Subject: Re: [v6ops] Need ref to 3GPP spec for the use of DHCPv6 Prefix Delegation, > e.g. for smartphone tethering > > Le 07/10/2013 18:19, Vízdal Aleš a écrit : > >>> There are no relays in the 3GPP case. > >> > >> There may be a misunderstanding here, because that 3gpp spec seems to > >> mention Relay several times... like the Serving GW being the Relay > >> and the PDN GW being the Server. > > > > Hmm there is one ... as the TS 24.302 mentioned earlier is > > 'Architecture enhancements for non-3GPP accesses' and there is another > > one TS 24.301 talking about the 3GPP access and that's the one I > > believe you're looking for. > > > > http://www.3gpp.org/ftp/Specs/html-info/23401.htm (5.3.1.2.6 IPv6 > > Prefix Delegation via DHCPv6) > > Ok I looked at that as well. > > That section talks that the PDN GW being the DHCP Server. > > That section does not mention the use of a Relay Agent. > > However, given the number of intermediary boxes one sees between the UE and the > PDN GW in figure 4.2.1-1 (e.g. Serving Gateway, PDN Gateway, more), one could > hardly imagine that the UE and the PDN GW are neighbors in terms of IP. I have a > doubt about it. > > BEcause of this doubt, I assume that there is a Relay Agent somewhere between the > UE and the PDN GW (DHCP discovery phase would not work without a Relay Agent if > the Server were not a neighbor). > > This may be wrong though... The GGSN/PGW is UEs next-hop as the traffic is tunnelled in GTP through all the intermediate nodes. > This is why I wonder whether or not 3gpp uses DHCPv6 Relay Agent functionality, or > not. > > Alex > > > > > Ales Ales
- [v6ops] Need ref to 3GPP spec for the use of DHCP… Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Mikael Abrahamsson
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Rajiv Asati (rajiva)
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Gert Doering
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Gert Doering
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- Re: [v6ops] Need ref to 3GPP spec for the use of … Alexandru Petrescu
- Re: [v6ops] Need ref to 3GPP spec for the use of … Vízdal Aleš
- [v6ops] Announcing draft-petrescu-relay-route-pd-… Alexandru Petrescu
- Re: [v6ops] Announcing draft-petrescu-relay-route… Ole Troan
- Re: [v6ops] Announcing draft-petrescu-relay-route… Leaf Yeh