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From: Arti Zirk <arti.zirk@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>,
	"Roman Mamedov" <rm@romanrm.net>
Cc: Reid Rankin <reidrankin@gmail.com>,
	ch@ntrv.dk, WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: Standardized IPv6 ULA from PublicKey
Date: Mon, 29 Jun 2020 20:01:51 +0300	[thread overview]
Message-ID: <910f09eb8b67bef5cc55114fe1b0bd6297ea2ec4.camel@gmail.com> (raw)
In-Reply-To: <87lfk6gjax.fsf@toke.dk>

On E, 2020-06-29 at 14:15 +0200, Toke Høiland-Jørgensen wrote:
> In general I'd say that deviating from the RFC needs a good reason.
> Expanding the number of bits we can use for the identifier may be a
> good reason to expand the LL interface ID width (although I'm not
> actually too worried about collisions even if we only use 64 bits).

Few more counter arguments against expanding identifier length:

1. There is a rejected errata 4406 that wants to do this
https://www.rfc-editor.org/errata/eid4406

2. FreeBSD and probably other *BSD/macOS use those unused 56 bits to
store the link scope_id. And support nonstandard fe80:1::30/64 notation
instead of fe80::30%1/64 to specify the scope.
https://stackoverflow.com/a/5891805/2303328
https://github.com/freebsd/freebsd/blob/76f9308e3e2b80e95630efcdd994f3c133806bf4/share/doc/IPv6/IMPLEMENTATION#L427
https://github.com/freebsd/freebsd/blob/e9a39e0c3c22543812afd4de74d1d0ad6782100b/sys/netinet6/scope6.c#L363


  reply	other threads:[~2020-06-29 17:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-04 16:52 Standardized IPv6 ULA from PublicKey Lonnie Abelbeck
2017-12-04 17:14 ` Aaron Jones
2017-12-05  2:53 ` Luis Ressel
2017-12-05  3:31   ` Jason A. Donenfeld
2020-06-24 15:37     ` Florian Klink
2020-06-24 17:08       ` Chriztoffer Hansen
2020-06-24 17:30         ` JuniorJPDJ
2020-06-27 21:43         ` Reid Rankin
2020-06-28 10:15           ` Arti Zirk
2020-06-28 15:19             ` Derrick Lyndon Pallas
2020-06-29 10:22           ` Toke Høiland-Jørgensen
2020-06-29 10:31             ` Roman Mamedov
2020-06-29 10:52               ` Justin Kilpatrick
2020-06-29 11:03               ` Toke Høiland-Jørgensen
2020-06-29 11:38                 ` Roman Mamedov
2020-06-29 12:15                   ` Toke Høiland-Jørgensen
2020-06-29 17:01                     ` Arti Zirk [this message]
2020-06-29 18:01                       ` Jason A. Donenfeld
2020-06-29 19:58                         ` Reid Rankin
2020-06-30  1:24                           ` Jason A. Donenfeld
2020-06-30  8:01                             ` Reid Rankin
2020-06-29 18:49                     ` Luiz Angelo Daros de Luca

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