Re: draft-bourbaki-6man-classless-ipv6-00

[Mark Andrews <[e-mail]>]

In message <[e-mail]>, Brian Hab
erman writes:
> Hi Bert,
>
> On 6/2/17 4:03 PM, Manfredi, Albert E wrote:
> > -----Original Message-----
> > From: Templin, Fred L
> >
> >> My meaning was for the ISP to give the cell phone or home gateway
> >> a /64, then let the cell phone/ home gateway subnet the /64 to
> >> the IoT devices within the subnetwork it provides as it sees fit.
> >
> > Sorry, I have to make an important correction:
> >
> > Presumably, using some sort of internal address format, also /64, such
> as privacy addresses? Yes, true, but ...
>
> I interpreted Fred's proposal as:
>
> 1. ISP gives the phone a /64

The ISP could give each phone a /48.  There is NOTHING stopping the
ISP giving a /48 today.  IPv6 is sized to allow this.  When you
stop trying to hand out the minimum and start handing out reasonable
quantities of subnets the so called problems go away.

> 2. The phone delegates longer prefixes to the devices behind it
> from the /64

The phone then hands out /64's to devices behind it on demand.

> 3. The ISP router has a single /64 route that points to the phone

The ISP's router has a single /48 that points to the phone.

> Regards,
> Brian

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
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