IETF Logo Mail Archive

Re: [v6ops] I-D Action: draft-horley-v6ops-lab-00.txt

Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 15 June 2021 21:00 UTC

Return-Path: <brian.e.carpenter@gmail.com>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0BC6B3A3DB6 for <v6ops@ietfa.amsl.com>; Tue, 15 Jun 2021 14:00:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 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, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 S_LRV3nFW4Yg for <v6ops@ietfa.amsl.com>; Tue, 15 Jun 2021 14:00:04 -0700 (PDT)
Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9C6FA3A3DB4 for <v6ops@ietf.org>; Tue, 15 Jun 2021 14:00:04 -0700 (PDT)
Received: by mail-pj1-x1031.google.com with SMTP id i11-20020a17090a2acbb029016f0cce7c3fso212663pjg.3 for <v6ops@ietf.org>; Tue, 15 Jun 2021 14:00:04 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=Tiwx3W8vTWCo53YW250Y6Yqb4c4L+Blu7p1TTuSSCt4=; b=ElppvzQKH6ZzXpJ5jVaimj/RiHhi8VIoqKMRwH+vcG1+sPmVkWPxeZou2vH9tUko4W 39EGYz/A2wXcgTUPXpEt17dc63/847Wc1yf+jhCbQE4IwR5Z4DGhAju8+F0V94Iur2q8 x7lDeCxCGISCmEXNG0DwPoJn3ELpVnmKNra03WvsPcafzLyPNF94K0UEP70GlsNHVW0+ 4gMrlOG3dsZfLMrLw5A0A+fhd8fsf8DrG8y3IkhRAxOsUqXfbv1otccotppTEOX8StK+ MMOxfQr3iHXVduvwc6dQubNfDq12UCyglBhRjFRTzVQglZEoG9xjdo0zVJQ9H6gAx/l8 L1vA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Tiwx3W8vTWCo53YW250Y6Yqb4c4L+Blu7p1TTuSSCt4=; b=apRcabqP7MWS7fqVKT2WJMQe6LNqBIecQKWuug+R2bfRy6bYwKG7lBnqlI25FB9jL+ ZhvTkRLst7uIMjchMlvwHZJl+fkaSB/2P6vIzKGFrve873T2xYNg2gkMsWrAxcM9T0U0 u0G2JkHpxVOZNC6/8eElS0LUzjrrxJaGMCm7P1BePPSLwVM0WprxseJDHXrF1r5BFRrG IeoYUkcxjlOgg0oGSrW4+zwNthvZFl76/nypXjV2kwFumPkZTkmKlEarbYgIi/0oft41 oW/3UioL3urUI4Fm7wcx98mGhun251ju6o1klgf/YgZzstLucAx9ZFeNvkyBE2wQHuL3 R+Cg==
X-Gm-Message-State: AOAM533Bx9TlOPLxA+FNg0xGKEv2QocfINILpX8cOrllIuuaMpbIdO/4 VcQxu2ueH0pr4w8g7a2M0m7H1awDlA/d4g==
X-Google-Smtp-Source: ABdhPJzPd+7JMV10hf5VVGmLPJ1jojMLQSGc7v3HwGCG3JSDEgQM+CWLqjbo3Go8DPH0sTIMLqEDTw==
X-Received: by 2002:a17:90a:5401:: with SMTP id z1mr1142269pjh.7.1623790802496; Tue, 15 Jun 2021 14:00:02 -0700 (PDT)
Received: from ?IPv6:2406:e003:100d:901:80b2:5c79:2266:e431? ([2406:e003:100d:901:80b2:5c79:2266:e431]) by smtp.gmail.com with ESMTPSA id m7sm75169pfa.108.2021.06.15.14.00.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Jun 2021 14:00:01 -0700 (PDT)
To: sthaug@nethelp.no, ed@hexabuild.io
Cc: v6ops@ietf.org
References: <CAE=N4xfvMJw59qQE9gg24GcoK9XXOfjw-CXJ3DsKm3dU4Bk-Mw@mail.gmail.com> <CAN-Dau2ZGgdFZsDV7A8GPYXZBQMk0FSh697rNO2J-5h_K0Jz2A@mail.gmail.com> <CAE=N4xenXYomTVyTtpbVzw+2ftdYR7SUJdYjT1gArMna7PdTLw@mail.gmail.com> <20210615.161732.378898370.sthaug@nethelp.no>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <6de41a90-21d7-281a-1980-d8d7bd8c5d54@gmail.com>
Date: Wed, 16 Jun 2021 08:59:58 +1200
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0
MIME-Version: 1.0
In-Reply-To: <20210615.161732.378898370.sthaug@nethelp.no>
Content-Type: text/plain; charset="utf-8"
Content-Language: en-US
Content-Transfer-Encoding: quoted-printable
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/kwd-WpRLbDodZ81xM5ff5dIoUEc>
Subject: Re: [v6ops] I-D Action: draft-horley-v6ops-lab-00.txt
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Jun 2021 21:00:09 -0000

On 16-Jun-21 02:17, sthaug@nethelp.no wrote:
>>> Maybe recommending the Global ID for L=0 be taken from the corresponding
>>> 40 bits of the network's GUA Prefix.
>>>
>>> Just a thought.
>>
>> Understood, and a reasonable suggestion, however it still doesn’t address
>> that ULA space precedence, effectively makes it useless for dual-stack 
lab
>> scenarios. Even for IPv6 only it doesn’t work unless you take all the
>> effort to turn off APIPA.
> 
> Some of us use ULA for lab networks with no apparent problems.

But if your test case wants the internal test addresses to have exactly
the same behavior in address selection as external GUAs, the default
precedence for ULAs is an issue. I think that's Ed's point.

   Brian

v2.23.0 | Report a Bug | By Email