Re: Additional Documentation Prefixes (was Re: AD Evaluation : draft-ietf-6man-ra-pref64-06)

Job Snijders <job@ntt.net> Sun, 03 November 2019 20:55 UTC

Return-Path: <job@instituut.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 1B894120091 for <ipv6@ietfa.amsl.com>; Sun, 3 Nov 2019 12:55:29 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.648
X-Spam-Level:
X-Spam-Status: No, score=-1.648 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001] autolearn=no 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 xs9n3UzWaKEm for <ipv6@ietfa.amsl.com>; Sun, 3 Nov 2019 12:55:27 -0800 (PST)
Received: from mail-oi1-f172.google.com (mail-oi1-f172.google.com [209.85.167.172]) (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 BEC9712002E for <ipv6@ietf.org>; Sun, 3 Nov 2019 12:55:27 -0800 (PST)
Received: by mail-oi1-f172.google.com with SMTP id l20so341993oie.10 for <ipv6@ietf.org>; Sun, 03 Nov 2019 12:55:27 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=WpGg4KCOPYOW0KeMDoh2S227JQ/VmQo+UlwWaqFtffs=; b=CyJzVh8j1eTIIwy+jQfvzum5lsWMerz7JdVyOLrQj/nPm0yCtfMpMhw5ZZJjuqa6Cy t2vVaQL5nFrqEv+JfWNP2D031gD6Z2fZo4z/EF0iF1A8RDJZ//I0z4T4daSxPcQmtVYy 96I/Ves4T9Cb/Gh68RLsV+mwUZT/NHqCJ/mu2y+I+7G3/HWw9c14CbbrxXbzMPsxlTm1 xXRDOSqugR5xH63jGeOa0cAE3C6Z7BxCxpevXCbcmERRVKJw+QdUE6AhIL+rF9wbH0H5 IB0xpYEFwXjfUWfP2KtSP14tDbRriqgiJU29BLLeArlW2XPfxzKdS4E9btLrd0g6zOvW FF4A==
X-Gm-Message-State: APjAAAUoMXmnvFG4jyCuvJjnfOp27pf/J7UITyq+YCUGADi3q8+ajvBq uGMPKS7wiTtu5J25MpKD3y7nteLtNEUaQQ==
X-Google-Smtp-Source: APXvYqwMNFRYLN3j6iIrSxeE9eFlAocY8I03QptzqO8BghHH4xpx0OnQYH/VSlNI5WLX6eoKyORUIA==
X-Received: by 2002:aca:338a:: with SMTP id z132mr4646030oiz.99.1572814526371; Sun, 03 Nov 2019 12:55:26 -0800 (PST)
Received: from vurt.meerval.net (189.221.41.204.cable.dyn.cableonline.com.mx. [189.221.41.204]) by smtp.gmail.com with ESMTPSA id k93sm4329931otc.30.2019.11.03.12.55.25 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 03 Nov 2019 12:55:25 -0800 (PST)
Received: from localhost (vurt.meerval.net [local]) by vurt.meerval.net (OpenSMTPD) with ESMTPA id 8d5c27dd; Sun, 3 Nov 2019 20:55:24 +0000 (UTC)
Date: Sun, 3 Nov 2019 20:55:23 +0000
From: Job Snijders <job@ntt.net>
To: Suresh Krishnan <Suresh@kaloom.com>
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, IETF IPv6 Mailing List <ipv6@ietf.org>
Subject: Re: Additional Documentation Prefixes (was Re: AD Evaluation : draft-ietf-6man-ra-pref64-06)
Message-ID: <20191103205523.GF18325@vurt.meerval.net>
References: <F1B31C38-7CDB-4057-A573-D6AF76B264D3@kaloom.com> <CAKD1Yr1vOqTvEsv0oCm+bu7CkFwiyFv8_G1XM+4JAKYLoA21aA@mail.gmail.com> <27802.1572732078@localhost> <F95A29A5-CEAF-4A23-A678-C5465B248E42@kaloom.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <F95A29A5-CEAF-4A23-A678-C5465B248E42@kaloom.com>
X-Clacks-Overhead: GNU Terry Pratchett
User-Agent: Mutt/1.12.2 (2019-09-21)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/oQJFKDTD485F905cEOBYR4sxzy8>
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: Sun, 03 Nov 2019 20:55:29 -0000

On Sat, Nov 02, 2019 at 11:02:49PM +0000, Suresh Krishnan wrote:
> > On Nov 2, 2019, at 6:01 PM, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
> > Lorenzo Colitti <lorenzo=40google.com@dmarc.ietf.org> wrote:
> >>> Please use a documentation prefix, say 192.0.2.0/24, instead of
> >>> the RFC1918 address currently used in the example.
> > 
> >> Are you sure this would be an improvement? The example would become
> >> less realistic because 1) 192.0.2.0/24 is a /24 and subnetting a
> >> /24 is unusual, and 2) it's seems like a reasonable thing to do to
> >> route private space to a different NAT.
> > 
> > I agree with you.

Absolutely.

> >> Is there a larger documentation prefix than 192.0.2.0/24?
> > 
> > I wish that there was.
> 
> Me too. I also think a larger prefix could be useful. Similarly a
> block that would differentiate it as an example of private space to be
> used.
> 
> > Maybe we could carve out of class E space as a /20 of documentation
> > space.
> 
> Sounds like a plan. If you write something up, I would be willing to
> AD sponsor something like this. The biggest issue with repurposing E
> space was that it would hit a lot of bogon filters. In this case that
> is a desirable feature.

This is music to my ears.

In draft-ietf-sidrops-rpkimaxlen we are running into the issue that
there isn't something larger than a /24 that isn't also private space.

Kind regards,

Job