Some advice on IPv6 planning and ARIN request, please

Mark Andrews marka at
Tue Jul 11 14:25:17 CST 2017

In message <CAP-guGWbNPMZm6OcXuUJKo93OZ38QR_mb4-RK4A5A30ExcvKiQ at
>, William Herrin writes:
> On Mon, Jul 10, 2017 at 11:09 PM, Mark Andrews <marka at> wrote:
> > If I had 32 departments and were wanting to give them equal sized
> > allocations then I'd give them a /53 each which is 2064 subnets
> > each.  It isn't that hard to do 8 delegations in the reverse tree
> > for each of the 32 departments.  Delegation on nibble boundaries
> > is for convience and nothing else.
> For comprehensibility which nets convenience. Consistently delegate on
> nibble boundaries and your power users don't have to understand Boolean
> algebra to make sense of the network.

Hexadecimal is much much simpler than decimal to work with on non
nibble/octet boundaries.  I think most people are applying IPv4 non
octet experience to non nibble IPv6 addressing.  The two are nowhere
near comparable having had to work with both.

> Regards,
> Bill Herrin
> -- 
> William Herrin ................ herrin at  bill at
> Dirtside Systems ......... Web: <>
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at

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