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Re: Adoption Call for <draft-troan-6man-universal-ra-option>

"Dale W. Carder" <dwcarder@es.net> Wed, 22 September 2021 02:31 UTC

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Date: Tue, 21 Sep 2021 21:31:12 -0500
From: "Dale W. Carder" <dwcarder@es.net>
To: Mark Smith <markzzzsmith@gmail.com>
Cc: Brian E Carpenter <brian.e.carpenter@gmail.com>, Fernando Gont <fernando.gont=40edgeuno.com@dmarc.ietf.org>, IPv6 List <ipv6@ietf.org>
Subject: Re: Adoption Call for <draft-troan-6man-universal-ra-option>
Message-ID: <YUqVcBWkxg3pCxxr@dwc-laptop-2.local>
References: <c7a49df3-59a1-ac24-3d6a-8d71896733a1@foobar.org> <84347b3f-8462-4dc6-580d-544b1bf8aaad@gmail.com> <CAKD1Yr0NapC=Hw9WcjZcKi5O0FE0pM413wqSMALS0310Ps3R8g@mail.gmail.com> <cd2b98a8-4f3e-3d1e-4b6b-0d4c7e2745e9@gmail.com> <CAKD1Yr0cYC=g4WhmYvEmn4W9npFu-xjWKf8hd55fwbjAFFo_yA@mail.gmail.com> <109a3287-38da-1ab2-453a-74422a8f75a3@gmail.com> <a0673b6f-9d46-0e6b-976f-bab44f372b9d@edgeuno.com> <17228f7ef1ad4a6f85654f3d1fdea27e@huawei.com> <584325b9-b978-2c0a-c782-12d470809143@gmail.com> <CAO42Z2xCE=xmst1kOJNyiTpbKKBsgZVuxTXrF4zqS7ceGEHgVA@mail.gmail.com>
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Thus spake Mark Smith (markzzzsmith@gmail.com) on Wed, Sep 22, 2021 at 08:11:35AM +1000:
> On Wed, 22 Sep 2021, 07:14 Brian E Carpenter, <brian.e.carpenter@gmail.com>
> wrote:
> 
> > On 21-Sep-21 19:51, Vasilenko Eduard wrote:
> > > Hi Fernando,
> > > The idea "standardize any remaining" looks good but SLAAC and DHCP are
> > so different by architecture that it would not be possible.
> > > Example: DHCP is the choice for all types of businesses because of
> > traceability (billing, troubleshooting, forensic) but SLAAC is silent in
> > principle.
> >
> 
> 
> Can't find Eduard's original, so I'll comment here.
> 
> DHCPv6 and DHCPv4 were never designed for billing or forensic uses.
> 
> DHCP of both flavours does not record IP addresses in use.
> 
> DHCPv4 doesn't record manually configured IPv4 addresses. DHCPv6 doesn't
> record manually configured IPv6 addresses or link-local addresses.
> 
> The only thing DHCP keeps is a database of DHCP clients.
> 
> If you want address traceability, you need a solution that works regardless
> of how IPv6 addresses are configured or generated, be it manually, via
> SLAAC or via DHCPv6.

If folks are not familiar with it, there is some discussion on this 
in RFC7934 Section 9.1:

https://datatracker.ietf.org/doc/html/rfc7934#section-9.1

Dale

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