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Re: I-D Action: draft-carpenter-6man-rfc6874bis-00.txt

Philip Homburg <pch-ipv6-ietf-7@u-1.phicoh.com> Wed, 07 July 2021 15:31 UTC

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To: ipv6@ietf.org
Cc: Michael Richardson <mcr+ietf@sandelman.ca>
Subject: Re: I-D Action: draft-carpenter-6man-rfc6874bis-00.txt
From: Philip Homburg <pch-ipv6-ietf-7@u-1.phicoh.com>
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Date: Wed, 07 Jul 2021 17:31:21 +0200
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>Nico Schottelius <nico.schottelius@ungleich.ch> wrote:
>    > While copy & paste won't work with this proposal, I believe the %25
>    > escape should be "good enough" for most daily usage.
>
>Also, ping and/or getaddrinfo() could become tolerant of %25 as a special
>case (and given that few Windows machines have 25 interfaces), which would
>let the copy&paste work the other way.

Instead of doing this, maybe we should pick a new character in an update of
RFC 4007 and deprecate '%' as a mistake?

Aternatively, if we make fe80::ABCD%0 a valid address in the socket API
(and do something sensible in operating systems to select a default interface)
then we can reduce the use of scoped addresses and thus the copy paste problem.

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