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Re: [v6ops] [E] New Version Notification for draft-mishra-v6ops-variable-slaac-problem-stmt-01.txt

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 05 November 2020 20:43 UTC

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To: Gert Doering <gert@space.net>, Alexandre Petrescu <alexandre.petrescu@gmail.com>
Cc: v6ops@ietf.org
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Date: Fri, 06 Nov 2020 09:43:19 +1300
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Subject: Re: [v6ops] [E] New Version Notification for draft-mishra-v6ops-variable-slaac-problem-stmt-01.txt
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On 06-Nov-20 08:54, Gert Doering wrote:
> Hi,
> 
> On Thu, Nov 05, 2020 at 07:15:54PM +0100, Alexandre Petrescu wrote:
>> But subnet prefixes like 65bit length do work ok with ND nowadays.
> 
> Subnet prefixes of any length work perfectly fine with ND nowadays.
> 
> Just "SLAAC" doesn't, on most platforms.
> 
> I've heard that OpenBSD can do SLAAC with non-/64 prefix lengths
> just fine these days, though I have not tried it.
> 
>> But who uses Interface Identifiers?  Only SLAAC, I think.

Since SLAAC is mandatory to implement on IPv6 nodes [BCP220, RFC8504], that means that all IPv6 nodes use IIDs (and most of them have /64 baked in [RFC4291]).

> Using MAC-based EUI-64 for IIDs seems to be a relic from the past anyway.

True; that aspect is a complete distraction.

    Brian

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