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Re: [v6ops] Focused discussion: draft-ietf-v6ops-unique-ipv6-prefix-per-host

"Templin, Fred L" <Fred.L.Templin@boeing.com> Wed, 06 January 2016 00:47 UTC

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From: "Templin, Fred L" <Fred.L.Templin@boeing.com>
To: David Farmer <farmer@umn.edu>, "Fred Baker (fred)" <fred@cisco.com>
Thread-Topic: [v6ops] Focused discussion: draft-ietf-v6ops-unique-ipv6-prefix-per-host
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Date: Wed, 06 Jan 2016 00:46:56 +0000
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Cc: "v6ops@ietf.org" <v6ops@ietf.org>, John Brzozowski <John_Brzozowski@cable.comcast.com>
Subject: Re: [v6ops] Focused discussion: draft-ietf-v6ops-unique-ipv6-prefix-per-host
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Hi David,

> -----Original Message-----
> From: David Farmer [mailto:farmer@umn.edu]
> Sent: Tuesday, January 05, 2016 4:40 PM
> To: Templin, Fred L; Fred Baker (fred)
> Cc: David Farmer; v6ops@ietf.org; John Brzozowski
> Subject: Re: [v6ops] Focused discussion: draft-ietf-v6ops-unique-ipv6-prefix-per-host
> 
> On 1/5/16 18:35 , Templin, Fred L wrote:
> > Hi Fred,
> >
> >> -----Original Message-----
> >> From: Fred Baker (fred) [mailto:fred@cisco.com]
> >> Sent: Tuesday, January 05, 2016 4:25 PM
> >> To: Templin, Fred L
> >> Cc: John Brzozowski; v6ops@ietf.org
> >> Subject: Re: [v6ops] Focused discussion: draft-ietf-v6ops-unique-ipv6-prefix-per-host
> >>
> >>
> >>> On Jan 5, 2016, at 10:50 AM, Templin, Fred L <Fred.L.Templin@boeing.com> wrote:
> >>>
> >>>> respect the fact that AERO has been around for some time, however, it does
> >>>> not appear to be widely deployed.
> >>>
> >>> That is irrelevant.
> >>
> >> I'm sorry, no, it is relevant. We're not talking about IPv5, IPv7, TUBA, RFC 3053, RFC 5572, ISATAP (which one actually can describe
> as
> >> widely deployed or having once been widely deployed) or quite a long list of other technologies.
> >
> > To be fair, AERO is about IPv6 and DHCPv6 Prefix Delegation - not some
> > weird new IP protocol version. Likening it to IPv5, IPv7, TUBA, etc. is
> > therefore inappropriate.
> 
> Doesn't it also include automatic tunneling, and require end client
> software to support it?

AERO is typically used with automatic tunneling, but the functions can also be applied
to native multi-access links with no tunneling. Yes, client software is used for managing
prefix delegation server associations, for mobility management, etc. But, standard
DHCPv6 PD also requires client-side software, so I'm not sure I see a problem?

> > Thanks - Fred
> > fred.l.templin@boeing.com
> >
> >> In a draft whose primary purpose (BCP) is to ask network administrators to not restrict hosts or host interfaces to a single address,
> >> discussing a technology that might or might not have promise but is not widely received as a common current practice is at best
> >> irrelevant.
> 
> What? wait a sec, isn't that draft-ietf-v6ops-host-addr-availability.
> 
> This is draft-ietf-v6ops-unique-ipv6-prefix-per-host, and is something
> different, its related, but most definitely different.
> 
> In my view AERO and this draft are working in slightly overlapping, but
> different solution spaces.

We don't know that without a use case analysis.

Thanks - Fred
fred.l.templin@boeing.com

> --
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> David Farmer               Email: farmer@umn.edu
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> University of Minnesota
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