IETF Logo Mail Archive

Re: [v6ops] Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)

Gert Doering <gert@space.net> Wed, 06 January 2021 16:26 UTC

Return-Path: <gert@space.net>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 866143A0FC2 for <ipv6@ietfa.amsl.com>; Wed, 6 Jan 2021 08:26:58 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.099
X-Spam-Level:
X-Spam-Status: No, score=-2.099 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=space.net
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iaspjoN5oymk for <ipv6@ietfa.amsl.com>; Wed, 6 Jan 2021 08:26:57 -0800 (PST)
Received: from gatekeeper1-relay.space.net (gatekeeper1-relay.space.net [IPv6:2001:608:3:85::38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A04E73A0FC3 for <ipv6@ietf.org>; Wed, 6 Jan 2021 08:26:55 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=space.net; i=@space.net; q=dns/txt; s=esa; t=1609950416; x=1641486416; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=ca8JMmgl+idm3kxJhO5x4N/rOegglqWBI+42lAtFmgE=; b=L5djBtzRiUVkUcXTIgj9i3+qIj/3TqiI0ltVmpZE8etrluUXBZxuuEU6 EsbVB62LEEzVGsDplKsvScfUysaQ2S4pR2b7zFBwJ33JBD/5Vqx7gVNDv UDCgEHMcCRd+Ts5sM+vfFF77kNsUdqR9pwyVWqY/i2vQNQp69bRrJ6mDf VIPMMcEqtx5TEgg0lR/Dls/VbY0w2UHBOEyjmZ+OS5uZApkQJTMjlURwI Z8GFosU2XadjLLo1/+bMz7E04FWgU5KhaEFK5bcLlvFTiA850BM11etvx sgkwVPqU4ajh8JUroeyS1e+FW4ZKSySI+Z9wRarKsxOHziGNh8LlHK9S2 w==;
IronPort-SDR: Z/cWxzPn8sMQ7BFTKZzoG4tFhGMAHE698tAy0eoehkB880/AUeuoCss8jGuSb8BfvOdW37czzP tE10E8277BHFujgIA9N817M2gztFNpsgub6o6xnGfgo104lgHbmg/cZCCTXV6vYT3BVgvh+msJ oHH+HFx0RzMjvb1BHEDD1LEb5bcEXxd5uAmvyFntr22HMhx7MTntmfsoYki0/3J4R8TloZP9bz I8FX2z9lXYnm9Zafb8IL7YusKHcwL2RaGvIrMhB6g76o+ppclspS8DSgOkAfz8voWCdD389Wwy nsM=
X-SpaceNet-SBRS: None
Received: from mobil.space.net ([195.30.115.67]) by gatekeeper1-relay.space.net with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 17:26:52 +0100
X-Original-To: ipv6@ietf.org
Received: from mobil.space.net (localhost [IPv6:::1]) by mobil.space.net (Postfix) with ESMTP id C42CB43AD1 for <ipv6@ietf.org>; Wed, 6 Jan 2021 17:26:52 +0100 (CET)
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
Received: from moebius4.space.net (moebius4.space.net [IPv6:2001:608:2:2::251]) by mobil.space.net (Postfix) with ESMTP id 8611943AC3; Wed, 6 Jan 2021 17:26:52 +0100 (CET)
Received: by moebius4.space.net (Postfix, from userid 1007) id 80A80E7EF; Wed, 6 Jan 2021 17:26:52 +0100 (CET)
Date: Wed, 06 Jan 2021 17:26:52 +0100
From: Gert Doering <gert@space.net>
To: Fernando Gont <fgont@si6networks.com>
Cc: Philip Homburg <pch-ipv6-ietf-7@u-1.phicoh.com>, ipv6@ietf.org, IPv6 Operations <v6ops@ietf.org>
Subject: Re: [v6ops] Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)
Message-ID: <20210106162652.GX13005@Space.Net>
References: <160989494094.6024.7402128068704112703@ietfa.amsl.com> <6fe3a45e-de65-9f88-808d-ea7e2abdcd16@si6networks.com> <m1kx98E-0000EhC@stereo.hq.phicoh.net> <b53b5d62-0334-f791-f56a-f2122767ecdb@si6networks.com> <m1kxAVC-0000KhC@stereo.hq.phicoh.net> <c236e635-518b-fb51-5024-901ec4677c5d@si6networks.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <c236e635-518b-fb51-5024-901ec4677c5d@si6networks.com>
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/b0YEkTDB6G3VDcJoF-I1tGx8p34>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 06 Jan 2021 16:26:59 -0000

HI,

On Wed, Jan 06, 2021 at 12:42:13PM -0300, Fernando Gont wrote:
> And, as noted, there are concrete implications:
> RFC4007 says ULAs are non-global, RFC4193 says that ULAs are global, and 
> a Python library says ULAs are non-global. I don't think we want that.

On a tangent, I wonder why this is relevant at all.

Why should applications, or anything that is not an admin, care if an
address is a ULA or a GUA?

(I can see the bit about "tools that enter GUAs in the global DNS",
but this is very special anyway - because "DNS" might not be "global",
so general "refuse to put ULA into DNS" is not correct behaviour either)


Consistent terminology is important, true, and if we just want to make
sure that something can properly flag a ULA different than a GUA, we
could just introduce

  "mid-range scoped"

or rename the scopes to be 0 (link-local), 5 (mid-range), 10 (global)...

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

SpaceNet AG                      Vorstand: Sebastian v. Bomhard, Michael Emmer
Joseph-Dollinger-Bogen 14        Aufsichtsratsvors.: A. Grundner-Culemann
D-80807 Muenchen                 HRB: 136055 (AG Muenchen)
Tel: +49 (0)89/32356-444         USt-IdNr.: DE813185279

v2.23.0 | Report a Bug | By Email