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Re: [Madinas] Comments on draft-ietf-madinas-use-cases-05.txt

Michael Richardson <mcr+ietf@sandelman.ca> Thu, 16 March 2023 08:37 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Bob Hinden <bob.hinden@gmail.com>, madinas@ietf.org
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Comments: In-reply-to Bob Hinden <bob.hinden@gmail.com> message dated "Tue, 14 Mar 2023 09:47:06 -0700."
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Date: Thu, 16 Mar 2023 08:37:44 +0000
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Subject: Re: [Madinas] Comments on draft-ietf-madinas-use-cases-05.txt
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Bob Hinden <bob.hinden@gmail.com> wrote:
    >    MAC randomization in IETF Protocol Standards

    > The text in this section starts with:

    > Several IP address assignment mechanisms such as the IPv6 stateless
...
    > This section needs a serious rewrite.

On 802.11 networks with encryption, the IPv6 IIDs are nicely encrypted and
are not visible.

Pretty much no hotel captive portal or home network makes use of the IPv6, or
IID for access control decisions. (Sadly, that's likely because of a lack of
IPv6...)

What I'm saying is that this part is largely irrelevant.
We could fix it by just deleting the section.

Saw this this week at my hotel:
    https://github.com/mcr/madinas-bcp/blob/main/img/hotel-london-portal.png

They let me maintain a MAC address accept list, long-term, across stays.
That's completely going in the wrong direction, even if it is very
convenient.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-                      *I*LIKE*TRAINS*

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