Re: [Add] My single use case

Eric Rescorla <ekr@rtfm.com> Fri, 11 September 2020 11:15 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Fri, 11 Sep 2020 04:14:42 -0700
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To: tirumal reddy <kondtir@gmail.com>
Cc: Martin Thomson <mt@lowentropy.net>, ADD Mailing list <add@ietf.org>
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Subject: Re: [Add] My single use case
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On Thu, Sep 10, 2020 at 10:59 PM tirumal reddy <kondtir@gmail.com> wrote:

> The use case looks incomplete, it does not explain how the new device is
> on-boarded into the network.
>

For wired network you plug into the wall.
For a wireless network, someone gives you an SSID and a (common) password.
For mobile, via the usual mechanisms.

-Ekr

-Tiru
>
> On Thu, 10 Sep 2020 at 20:38, Martin Thomson <mt@lowentropy.net> wrote:
>
>> My preference is to tackle just this:
>>
>> As a new device or application, when I join a network that I have no
>> prior relationship with or configuration for, I want to discover the DoT or
>> DoH resolver that corresponds to the Do53 resolver offered by that network.
>>
>> This might need the full matrix of DoT/DoH, v4/v6, with/without a
>> forwarder, but this is fundamentally just a single use case.
>>
>> Specifically, I want to NOT learn about whether the resolver does qname
>> minimization or DoT to the authoritative or whether it does the eDNS client
>> subnet or different policies with respect to what is answered or anything
>> else that might make a decision to use this alternative complicated.
>> Existing methods don't provide this information.  I don't want a protocol
>> that does anything fancy because that makes the decision complex.
>>
>> --
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>> Add@ietf.org
>> https://www.ietf.org/mailman/listinfo/add
>>
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