Re: I-D Action: draft-mishra-6man-variable-slaac-01.txt

[Ca By <[e-mail]>]

On Wed, Nov 4, 2020 at 2:37 PM Brian E Carpenter <
[e-mail]> wrote:

> On 05-Nov-20 04:45, Ca By wrote:
> >
> >
> > On Wed, Nov 4, 2020 at 12:52 AM Lorenzo Colitti <lorenzo=
> [e-mail] <mailto:[e-mail]>> wrote:
> >
> >     On Tue, Nov 3, 2020 at 4:27 PM Gyan Mishra <[e-mail]
> <mailto:[e-mail]>> wrote:
> >
> >         It's hard to see why this draft is needed anyway. All that is
> needed
> >
> >             is to remove the "64 bit" statement from the addressing
> architecture,
> >             which the WG has consistently failed to reach consensus
> about.
> >
> >
> >             Gyan>  This topic has come up many times over the years in
> heated debate and this is another instance of that.  Agreed.  However, what
> makes this instance different is that we have a major problem to be solved
> with 4G  &  now as 5G is rolled out, segmentation is of utmost importance.
> I think in the past we have not had a major problem to be solved and so
> this change being proposed did not gain traction,  but now as 5G becomes
> the "norm" as it will compete directly with broadband that customers will
> start using 5G in SOHO as well as other environments.   This is a major
> issue that has come up with the ramp up for 5G IPv6 only deployments.
> >
> >
> >     There is already a solution to this: use DHCPv6 PD on 5G networks.
> It's been supported since 3GPP release 10 several years ago.
> >
> >
> > Has any mobile provider deployed dhcpv6 pd?
> >
> > Perhaps the mobile providers have seen what an operational nightmare
> dhcpv6 pd is and... are like nope.
>
> Perhaps that needs to be documented over in v6ops.
>
> > I am in favor of the ietf opening their eyes to a better solution.
> >
> > Rfc7278 is universally deployed because it is easy.
>
> As far as I can tell that is no use for the case of routed network
> connected to a hotspot, since there is still only one /64 prefix.
>
> > Can we do better (more /64s) and easy ?
>
> You mean multiple /64s for a single mobile device? Rather than fixing 3GPP
> to support shorter prefixes, which seems simpler.
>
>     Brian


Mobile providers have not deployed dhcp pd in the last 10 years.

As a mobile provider, my bet is the next 10 years may be no better.

Yet, rfc 7278 is deployed in many places in mobile


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