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

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 12 June 2024 23:40 UTC

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Date: Thu, 13 Jun 2024 11:40:22 +1200
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To: Michael Richardson <mcr+ietf@sandelman.ca>, 6man WG <ipv6@ietf.org>
References: <18236.1717011844@obiwan.sandelman.ca> <89dbde8c-82c9-4a2e-9cff-8d4fd2d8fbe6@gmail.com> <9E7BEA1C-4597-4142-A3AB-57211C436197@employees.org> <CAKD1Yr0iR+RZHvuquCGYfntiD+K7-PdkvGJzHLx1PLrFqJ=Z4Q@mail.gmail.com> <47BF97B8-2BEE-47CC-A965-C6BB112990AB@employees.org> <4bcfcd71-d295-433d-813f-1183c7da3cf3@gmail.com> <CAKD1Yr1CL_Jw4O-iETF6T1v8EL_Lj-fMi6EV=3MgPhN+M2tc8w@mail.gmail.com> <84f6e699-5587-4407-a566-b031c31e2cd5@gmail.com> <CAMGpriWqD99OzdOaJU7_nQTwvD=o1wsVxOQrbMqy5sH7sX7gwA@mail.gmail.com> <95dfd2e9-25da-4449-b740-724804a34735@gmail.com> <CAKr6gn12Vq9xJWGH+Na6xhDXXsW2XSDCnLegjXMRLN8KJ2CEZQ@mail.gmail.com> <CAKD1Yr24RyW_oxhY3iz5nEdXd0EZENy9cZBo7tfxLqLLMHOX_g@mail.gmail.com> <e2e406e1-1231-4c28-8163-c0e220da7453@lear.ch> <CAFU7BATpcSFGNNEgfZWgmHEEp2S_w_Fk4v0KQf4nRru2qFyCvQ@mail.gmail.com> <f0409452-ea31-489b-8227-43c5d1586f12@gmail.com> <19403.1718210163@obiwan.sandelman.ca> <2c7f8c14-881b-4bed-add4-4e28cc5d644b@gmail .com> <31504.1718229019@obiwan.sandelman.ca>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: [IPv6]Re: Working Group Last Call for <draft-ietf-6man-pio-pflag>
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On 13-Jun-24 09:50, Michael Richardson wrote:
> 
> 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.

I guess the bottom line is that making this a property of 4000::/3 and not of 2000::/3 doesn really change anything; all that counts is what the RA says and what the ipv6-over-foo specs say.

    Brian

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