IETF Logo Mail Archive

Re: Extending a /64

Philip Homburg <pch-ipv6-ietf-6@u-1.phicoh.com> Sun, 15 November 2020 21:37 UTC

Return-Path: <pch-b9D3CB0F5@u-1.phicoh.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 930103A0E0F for <ipv6@ietfa.amsl.com>; Sun, 15 Nov 2020 13:37:39 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.622
X-Spam-Level:
X-Spam-Status: No, score=-1.622 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.276, SPF_HELO_NONE=0.001, SPF_NONE=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 Y0Xmhlr07ENh for <ipv6@ietfa.amsl.com>; Sun, 15 Nov 2020 13:37:38 -0800 (PST)
Received: from stereo.hq.phicoh.net (stereo6-tun.hq.phicoh.net [IPv6:2001:888:1044:10:2a0:c9ff:fe9f:17a9]) (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 31B3F3A0E0D for <ipv6@ietf.org>; Sun, 15 Nov 2020 13:37:37 -0800 (PST)
Received: from stereo.hq.phicoh.net (localhost [::ffff:127.0.0.1]) by stereo.hq.phicoh.net with esmtp (TLS version=TLSv1.2 cipher=ECDHE-RSA-CHACHA20-POLY1305) (Smail #157) id m1kePdR-0000I6C; Sun, 15 Nov 2020 22:32:33 +0100
Message-Id: <m1kePdR-0000I6C@stereo.hq.phicoh.net>
To: ipv6@ietf.org
Subject: Re: Extending a /64
From: Philip Homburg <pch-ipv6-ietf-6@u-1.phicoh.com>
Sender: pch-b9D3CB0F5@u-1.phicoh.com
References: <202011151920.0AFJKN9U003337@mail2.mwassocs.co.uk> <3d26bffe-b6c9-4ed7-6135-a515f9902fd7@gmail.com> <m1keOTi-0000EGC@stereo.hq.phicoh.net> <CAO42Z2wZkXryhw1u5WAFdtCvXHyyz1zeM22FP_gRxjurjsG-Jw@mail.gmail.com> <5f505585-1328-d942-2ec2-a2d96b7b4779@foobar.org>
In-reply-to: Your message of "Sun, 15 Nov 2020 21:18:45 +0000 ." <5f505585-1328-d942-2ec2-a2d96b7b4779@foobar.org>
Date: Sun, 15 Nov 2020 22:32:29 +0100
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/G94Du_ahWnjc8_AnIxicGPDzgHg>
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, 15 Nov 2020 21:37:40 -0000

>/39 is seems very little for an entire sector of human enterprise. Why 
>wouldn't we allocate more?  Or at least create an allocation that had 
>plenty of room for expansion.

Not a /39. It seems that there is an existing 39-bit identifier for planes.
Somebody has decided that it would be a good idea to include that into the
prefix.

So if you want to give each plane a /56 then you need a /17 prefix.

v2.23.0 | Report a Bug | By Email