Re: default-iids: dropping requirement 1 in Section 3

Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 21 May 2016 05:44 UTC

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Subject: Re: default-iids: dropping requirement 1 in Section 3
To: Alissa Cooper <alissa@cooperw.in>, IETF IPv6 Mailing List <ipv6@ietf.org>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Sat, 21 May 2016 17:44:30 +1200
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On 21/05/2016 09:06, Alissa Cooper wrote:
> 
>> On May 18, 2016, at 1:26 AM, Alissa Cooper <alissa@cooperw.in> wrote:
>>
>> What if we dropped requirement #1 in Section 3, but left the rest the same? This would open the door such that people who wanted to comply with the SHOULD-level recommendation in this spec in the presence of randomized MAC addresses still could (e.g., by implementing 7217 and using the randomized MAC as the Net_Iface parameter), but directly embedding a MAC address in the IID would still go against the SHOULD NOT recommendation here.
> 
> I don’t think I saw anyone respond to this suggestion, so I’d like to ask again for people’s opinions about this.
> 
> To my eye this is a nice compromise.

Unfortunately I'm not sure it would change anything. The requirement 1 property
seems to be exactly what a site operator who wants stable addresses will need.

   Brian