Re: [v6ops] Clarification/addition on the cpe-slaac doc.

Warren Kumari <warren@kumari.net> Thu, 18 February 2021 20:22 UTC

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From: Warren Kumari <warren@kumari.net>
Date: Thu, 18 Feb 2021 15:21:26 -0500
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To: Fernando Gont <fgont@si6networks.com>
Cc: "Bernie Volz (volz)" <volz@cisco.com>, IPv6 Operations <v6ops@ietf.org>
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Subject: Re: [v6ops] Clarification/addition on the cpe-slaac doc.
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On Wed, Feb 10, 2021 at 2:02 PM Fernando Gont <fgont@si6networks.com> wrote:

> Hi, Warren,
>
> On 10/2/21 14:50, Warren Kumari wrote:
> >
> >
> > On Wed, Feb 10, 2021 at 10:37 AM Bernie Volz (volz) <volz@cisco.com
> > <mailto:volz@cisco.com>> wrote:
> >
> [....]
> >
> > Perhaps we should just clarify that this document just draws attention
> > to requirements in 8415, and doesn't replace it (which should be
> > obvious, but I agree may be worth doing).
>
> FWIW, something along these lines could be used for the content of the
> subsection that elaborates on the requirement:
>
>     [RFC8415] requires that IAID for an IA MUST be consistent across
>     restarts of the DHCP client. However, some popular CE Routers are
>     known to select a new random IAIDs e.g. everytime the underlying PPP
>     session is established. This could be the result of extrapolating the
>     behavior described in [RFC7844], or simply a consequence of not
>     storing the IAID on stable storage and failing to employ an algorithm
>     that consistently generates the same IAID upon reboots. Thus, this
>     requirement prevents CE Routers from inadvertently triggering a
>     flash-renumbering event on the local network.
>
>
> Thank you everyone who commented. This seems good to me.

Thanks again,
W



> Tweaks welcome :-)
>
> Thanks,
> --
> Fernando Gont
> SI6 Networks
> e-mail: fgont@si6networks.com
> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
>
>
>
>
>

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