Re: Updated IID length text

Lorenzo Colitti <lorenzo@google.com> Thu, 19 January 2017 04:13 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 19 Jan 2017 13:12:36 +0900
Message-ID: <CAKD1Yr39+gU7U=2i=bHPdj3OK9yOUSFdx3Fk42NZQo32oDbygQ@mail.gmail.com>
Subject: Re: Updated IID length text
To: Fernando Gont <fgont@si6networks.com>
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On Thu, Jan 19, 2017 at 12:51 PM, Fernando Gont <fgont@si6networks.com>
wrote:

> Oh, I love this. So you are a fan of still doing modified EUI-64 with
> randomized MAC addresses (which wastes 18 bits, including the 16 bits
> that are wasted with embedding 0xfffe), and now you say that using /48
> would impact things substantially?
>
> This can't possibly make sense.


It does make sense. /48 does impact things substantially. However, on like
like wifi, the MAC address is the endpoint identifier, so if there's a
duplicate MAC you can't get on the network.