IETF Logo Mail Archive

Re: [v6ops] draft-ietf-6man-grand : saving lookups

Philip Homburg <pch-v6ops-9@u-1.phicoh.com> Wed, 12 August 2020 09:05 UTC

Return-Path: <pch-b9D3CB0F5@u-1.phicoh.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 1D5B13A114A; Wed, 12 Aug 2020 02:05:13 -0700 (PDT)
X-Quarantine-ID: <9sgUHYx-anUl>
X-Virus-Scanned: amavisd-new at amsl.com
X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "Cc"
X-Spam-Flag: NO
X-Spam-Score: -1.686
X-Spam-Level:
X-Spam-Status: No, score=-1.686 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.212, 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 9sgUHYx-anUl; Wed, 12 Aug 2020 02:05:11 -0700 (PDT)
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 204493A0E69; Wed, 12 Aug 2020 02:05:09 -0700 (PDT)
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 m1k5mh0-0000FYC; Wed, 12 Aug 2020 11:05:06 +0200
Message-Id: <m1k5mh0-0000FYC@stereo.hq.phicoh.net>
To: v6ops@ietf.org
Cc: Jen Linkova <furry13@gmail.com>
Cc: 6man <ipv6@ietf.org>
From: Philip Homburg <pch-v6ops-9@u-1.phicoh.com>
Sender: pch-b9D3CB0F5@u-1.phicoh.com
References: <96fa6d80137241dd9b57fcd871c8a897@huawei.com> <CAFU7BARePzdeU5DFgoOWyrF0xZCj67_xkC2t8vMN2nH0d8aUig@mail.gmail.com> <37e2a7110f6b423eba0303811913f533@huawei.com> <CAKD1Yr1BJTAfp4PE+DY1yxeMm64kHetqBGYc5iaqZd3u0XrWpA@mail.gmail.com> <E176B084-24E1-434D-B15C-F364F64807BB@cisco.com> <CAFU7BASpHVTQ5SuNsdNu70ejZDnpVuPUaig+0_C=6q+mDQDFXA@mail.gmail.com> <BYAPR11MB355844AED3BA019B671797DDD8490@BYAPR11MB3558.namprd11.prod.outlook.com> <CAFU7BATuCN1rE=H9v0vv84UKKE7zD+LtRqh48Zf7hHN+sSGQJw@mail.gmail.com> <8B923F28-899B-4CE5-A3EB-B82E9E74A9B8@cisco.com> <CAFU7BATNnY3tYTc+woqypiu7VDtTghSsOnihGHw9bS0923Z+Vw@mail.gmail.com> <m1k5Pdd-0000KfC@stereo.hq.phicoh.net> <CAFU7BAQHUmuNAB97iZrn2oK=ZiZBpv_xPpt+ESf6j90tOKeZcQ@mail.gmail.com>
In-reply-to: Your message of "Wed, 12 Aug 2020 13:54:16 +1000 ." <CAFU7BAQHUmuNAB97iZrn2oK=ZiZBpv_xPpt+ESf6j90tOKeZcQ@mail.gmail.com>
Date: Wed, 12 Aug 2020 11:05:05 +0200
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/GtvlIRFOxCasFetYsK_vnUWHXH8>
Subject: Re: [v6ops] draft-ietf-6man-grand : saving lookups
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: Wed, 12 Aug 2020 09:05:13 -0000

>Periodic announcements for all preferred addresses does look like an
>overkill to me.

[Just commenting on this particular point]

It is not clear to me where the notion comes from that deprecated address
can be ignored.

Deprecated addresses are perfectly fine addresses, they are just not
used to set up new connections (unless there is no alternative).

In particular, during renumbering deprecated address can still be in 
DNS. Decrecated address can be used in various ways to separate outgoing
from incoming traffic.

So if we want to inform a router about addresses that belong to a host,
then we should report all addresses.

v2.23.0 | Report a Bug | By Email