Re: [v6ops] new draft: draft-colitti-v6ops-host-addr-availability

Ross Chandler <ross@eircom.net> Sun, 19 July 2015 23:07 UTC

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From: Ross Chandler <ross@eircom.net>
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Date: Mon, 20 Jul 2015 00:07:28 +0100
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Subject: Re: [v6ops] new draft: draft-colitti-v6ops-host-addr-availability
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> On 19 Jul 2015, at 10:20, Mikael Abrahamsson <swmike@swm.pp.se>; wrote:
> 
> Personally I would like to see (at least) /64 given to each device that it can use locally. Having lots of addresses on the same subnet means (usually) multicast traffic increases, so the best solution would be to just PD /64 (or larger) to each device and let it figure it out.
> 
> IPv6 for me is 2^64 networks, not 2^128 addresses, and I would prefer if each device got its own /64 for substantial number of deployment scenarios, especially when devices are run by different entities which includes the ISP (regardless if it’s campus network or some other Internet service provider).

+1 to this & the draft.

IA_ looks unduly parsimonious. It’s a pity it exists. As the draft illustrates is not adding much if any value over SLAAC.

AFAIK in ISP networks when DHCPv6 /128 WAN addresses are assigned at all they’re in practise coming from a unique /64 per IA.

As the draft notes /64 in 3GPP to every device is a successful interim stage to DHCPv6 PD.

Ross