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[IPv6]Re: Working Group Last Call for <draft-ietf-6man-pio-pflag>

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 12 June 2024 21:50 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, 6man WG <ipv6@ietf.org>
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Date: Wed, 12 Jun 2024 17:50:19 -0400
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Subject: [IPv6]Re: Working Group Last Call for <draft-ietf-6man-pio-pflag>
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Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
    > On 13-Jun-24 04:36, Michael Richardson wrote:
    >> Brian E Carpenter <brian.e.carpenter@gmail.com> wrote: > Worse, I'd
    >> say. If my ISP flash-renumbered me into > 4404:4400:5d14:7800::/52
    >> tonight and SLAAC would suddenly only work > with /80, I'd be
    >> irrevocably down (unless IPv4 still worked, or I was > also running
    >> ULA/64+NPTv6).  It seems to me that if you have a /52, that you can
    >> easily hand out a /80.

    > Not unless the ISP also remotely upgraded my CE router to do so. Really
    > I was trying to say that a whole site network can be a legacy that will
    > only work with /64, not just an individual host as Jen implied.

But, it also won't set the pflag, and probably doesn't support downstream
("LAN side") DHCPv6-PD.
... Which is the topic of draft-ietf-v6ops-cpe-lan-pd-00.

So I'm still lost about your concern.


--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide

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