Re: [homenet] auto-passthrough from ISP routers

otroan@employees.org Fri, 24 July 2020 11:04 UTC

Return-Path: <otroan@employees.org>
X-Original-To: homenet@ietfa.amsl.com
Delivered-To: homenet@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6C1F33A0E82 for <homenet@ietfa.amsl.com>; Fri, 24 Jul 2020 04:04:18 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, 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 vKgLa1kIxjJR for <homenet@ietfa.amsl.com>; Fri, 24 Jul 2020 04:04:17 -0700 (PDT)
Received: from clarinet.employees.org (clarinet.employees.org [IPv6:2607:7c80:54:3::74]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 267AC3A0EC6 for <homenet@ietf.org>; Fri, 24 Jul 2020 04:04:17 -0700 (PDT)
Received: from astfgl.hanazo.no (dhcp217197164246.blix.com [217.197.164.246]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by clarinet.employees.org (Postfix) with ESMTPSA id 2D3B74E11B3B; Fri, 24 Jul 2020 11:04:16 +0000 (UTC)
Received: from [IPv6:::1] (localhost [IPv6:::1]) by astfgl.hanazo.no (Postfix) with ESMTP id B017A39A52A6; Fri, 24 Jul 2020 13:04:11 +0200 (CEST)
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\))
From: otroan@employees.org
In-Reply-To: <EC9C381D-113A-4E28-A6C0-9AC9D202DF93@fugue.com>
Date: Fri, 24 Jul 2020 13:04:11 +0200
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, Ray Bellis <homenet@ietf.org>, Barbara H Stark <bs7652@att.com>
Content-Transfer-Encoding: quoted-printable
Message-Id: <ACFFD80D-6CF1-46BC-BFC8-001259D481C9@employees.org>
References: <EFFD3C14-2DB9-4445-8991-5557AE6A8623@employees.org> <EC9C381D-113A-4E28-A6C0-9AC9D202DF93@fugue.com>
To: Ted Lemon <mellon@fugue.com>
X-Mailer: Apple Mail (2.3608.80.23.2.2)
Archived-At: <https://mailarchive.ietf.org/arch/msg/homenet/I5JFBHfKVn6zVkjfOkf-J3lcFV4>
Subject: Re: [homenet] auto-passthrough from ISP routers
X-BeenThere: homenet@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF Homenet WG mailing list <homenet.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/homenet>, <mailto:homenet-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/homenet/>
List-Post: <mailto:homenet@ietf.org>
List-Help: <mailto:homenet-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/homenet>, <mailto:homenet-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 24 Jul 2020 11:04:18 -0000

>>> On 23 Jul 2020, at 18:58, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
>>> 
>>> This is very cool.
>>> Is it written up as a specification somewhere?  What is the signal that the
>>> device behind is a router, and not a PC?
>>> 
>>> Why isn't homenet standardizing this?
>> 
>> Cause it's architecturally "challenged"?
> 
> The working group or the solution?

Not sure how you could interpret that as pointing to the working group.

The solution obviously.
IPv4 "pass through" implies sharing the IPv4 address among multiple nodes.
Creating all sorts of tricky problems.
Which of the nodes gets an ICMP error message for example.

Cheers,
Ole