Re: [Add] [EXTERNAL] Re: New Version Notification for draft-reddy-add-enterprise-split-dns-01.txt

Tommy Jensen <Jensen.Thomas@microsoft.com> Thu, 01 April 2021 22:04 UTC

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From: Tommy Jensen <Jensen.Thomas@microsoft.com>
To: "bemasc=40google.com@dmarc.ietf.org" <bemasc=40google.com@dmarc.ietf.org>, "Glenn.Deen@nbcuni.com" <Glenn.Deen@nbcuni.com>
CC: "vittorio.bertola@open-xchange.com" <vittorio.bertola@open-xchange.com>, "add@ietf.org" <add@ietf.org>
Thread-Topic: [Add] [EXTERNAL] Re: New Version Notification for draft-reddy-add-enterprise-split-dns-01.txt
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Subject: Re: [Add] [EXTERNAL] Re: New Version Notification for draft-reddy-add-enterprise-split-dns-01.txt
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> The network can already do this via free text in a human-readable captive portal page.

+1. It makes sense for mechanisms in this WG to describe client behavior requires for some functionality, such as “this network’s resolver has unique knowledge about domains X, Y, and Z” which can be ascertained. It does not make sense for us to drag user consent negotiation or signaling into this when CAPPORT already did lovely work to make captive portal discovery/negotiation easier for both parties. This hearkens back to my on-going point that “network policy involves more than just DNS and baking it into DNS is the wrong approach.”

Thanks,
Tommy

From: Add <add-bounces@ietf.org> On Behalf Of Ben Schwartz
Sent: Thursday, April 1, 2021 2:39 PM
To: Deen, Glenn (NBCUniversal) <Glenn.Deen@nbcuni.com>
Cc: Vittorio Bertola <vittorio.bertola@open-xchange.com>; ADD Mailing list <add@ietf.org>
Subject: Re: [Add] [EXTERNAL] Re: New Version Notification for draft-reddy-add-enterprise-split-dns-01.txt

On Thu, Apr 1, 2021 at 4:47 PM Deen, Glenn (NBCUniversal) <Glenn.Deen@nbcuni.com<mailto:Glenn.Deen@nbcuni.com>> wrote:
If the network is going to prevent user opt-out it’s fully capable doing that regardless of the flag. However if it existed, this flag would permit the network to inform user to be aware of what is going on.

The network can already do this via free text in a human-readable captive portal page.

So the flag could actually be seen as helping RFC 8890 as it provides information that the user can use in making their choice to use to use the particular network.

Arguments on the basis of RFC 8890 are not likely to be productive: I mention it mostly to emphasize that we are unlikely to reach consensus to adopt this sort of mechanism.

However, on this particular point, I think it's unrealistic to expect that most users have a meaningful choice of which network to use.  Users largely have no choice but to submit to whatever restrictions the network demands, so we should be very careful about what kinds of demands we endorse.