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

Fernando Gont <fgont@si6networks.com> Wed, 06 January 2021 18:56 UTC

Return-Path: <fgont@si6networks.com>
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 A676D3A1200; Wed, 6 Jan 2021 10:56:17 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.161
X-Spam-Level:
X-Spam-Status: No, score=-2.161 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.262, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
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 lvQeLHdaGQkr; Wed, 6 Jan 2021 10:56:15 -0800 (PST)
Received: from fgont.go6lab.si (fgont.go6lab.si [91.239.96.14]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F1D913A114A; Wed, 6 Jan 2021 10:56:14 -0800 (PST)
Received: from [10.0.0.129] (unknown [186.19.8.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by fgont.go6lab.si (Postfix) with ESMTPSA id 126AA283A88; Wed, 6 Jan 2021 18:56:10 +0000 (UTC)
Subject: Re: [v6ops] Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)
To: Ted Lemon <mellon@fugue.com>, Michael Richardson <mcr+ietf@sandelman.ca>
Cc: IPv6 Operations <v6ops@ietf.org>, ipv6@ietf.org, Gert Doering <gert@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> <20210106162652.GX13005@Space.Net> <1ddf8850-a8cb-53a7-31bc-7433d5a984f2@si6networks.com> <1169.1609953092@localhost> <FA6275FF-E148-46DC-BCFD-987315765873@fugue.com>
From: Fernando Gont <fgont@si6networks.com>
Message-ID: <dda7dd99-7eda-4c17-cd17-b3e86d42a30d@si6networks.com>
Date: Wed, 06 Jan 2021 14:35:29 -0300
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1
MIME-Version: 1.0
In-Reply-To: <FA6275FF-E148-46DC-BCFD-987315765873@fugue.com>
Content-Type: text/plain; charset="windows-1252"; format="flowed"
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/6mlIqSDvGc5N--E1-G1-ila7410>
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 18:56:21 -0000

On 6/1/21 14:20, Ted Lemon wrote:
> On Jan 6, 2021, at 12:11 PM, Michael Richardson <mcr+ietf@sandelman.ca 
> <mailto:mcr+ietf@sandelman.ca>> wrote:
>> And, yet, for the case where some device is doing dynamic DNS update 
>> to a DNS
>> server that is within some ULA scope, posting the ULA to the DNS is 
>> actually
>> correct.
>> But, it's hard to know that without knowing what clients are expected 
>> to connect.
> 
> It seems straightforward that the client should send all the addresses 
> it wants to advertise, and the DNS server should decide which ones to 
> advertise in what scopes.

FWIW, I didn't find that magic in BIND (even if it's there), so I had to 
deal with it on the client side.


-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492