Re: [homenet] ISPs using DHCP for individual clients

ianfarrer@gmx.com Fri, 20 November 2020 15:57 UTC

Return-Path: <ianfarrer@gmx.com>
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 170FA3A0D76 for <homenet@ietfa.amsl.com>; Fri, 20 Nov 2020 07:57:52 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.898
X-Spam-Level:
X-Spam-Status: No, score=-1.898 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-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 (1024-bit key) header.d=gmx.net
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 u5qvDVawNO21 for <homenet@ietfa.amsl.com>; Fri, 20 Nov 2020 07:57:50 -0800 (PST)
Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BED4B3A0C61 for <homenet@ietf.org>; Fri, 20 Nov 2020 07:57:49 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1605887865; bh=MVPXwqMdkM4QFJiUZBLj7Y3ri1LweWCWZ8G1R7T3gKA=; h=X-UI-Sender-Class:From:Subject:Date:In-Reply-To:Cc:To:References; b=gzzCje2fK84kflYuZjlhk+IsG3+DWus2sYdsdB/CWJ6Siuk4mB2UtzhmONfDTFUtP 67GKitfRKMm6XsDbytidXPpfmEl6nOGP9vExdC/8EccONhOQlmSkSfc499qkwPO+w/ S4VdxNQLQ9cg9X70Po8kv/07VsxOOj9eQ8L9saKA=
X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c
Received: from [192.168.128.43] ([89.0.36.176]) by mail.gmx.com (mrgmx004 [212.227.17.184]) with ESMTPSA (Nemesis) id 1N1Obh-1kGslO2ZQZ-012r1t; Fri, 20 Nov 2020 16:57:45 +0100
From: ianfarrer@gmx.com
Message-Id: <4C575E84-7828-41EB-B57F-6B5FDDBD457B@gmx.com>
Content-Type: multipart/alternative; boundary="Apple-Mail=_9EB8B3A1-C9DD-4FAD-BF08-2995C3EB27E1"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\))
Date: Fri, 20 Nov 2020 16:57:43 +0100
In-Reply-To: <CADZyTkn5nFDwNZev1ggj2do7uLcr=M9EKT8mmaiFPXhPaObBwg@mail.gmail.com>
Cc: homenet <homenet@ietf.org>
To: Daniel Migault <mglt.ietf@gmail.com>
References: <CADZyTkn5nFDwNZev1ggj2do7uLcr=M9EKT8mmaiFPXhPaObBwg@mail.gmail.com>
X-Mailer: Apple Mail (2.3445.104.17)
X-Provags-ID: V03:K1:fav2KpbQxfob+UekfeOW0CPIhkuwuooP5HSvs6uxAX/woWlidH5 yBIJZBc7h9ZdGoiNGWS44IEzCM9vi+l7tP8cPqZ45z8xzEQMcojW45bpJHdskr8HnIBecRu mX7lGBT39daDPBpNBt5Ebl+xlQYfXWRzPue2HYvT/l7Z8xu6hp7MCL2U56p/I1wrniZY5IU JZ8WyqiRVGOTVy3JFENDQ==
X-UI-Out-Filterresults: notjunk:1;V03:K0:pV5kjeruNUc=:Tx1thaBpLKswXhSMaHvwWQ nlsvDuBtPOgR+jg6MAG2OtnT516nMcDoRcKXmvXOHPBi9GLYIi1a1pTEljXa/YtthtUPGqExF 5MMb556KElg59f9XkDcZTqu3k60Hnwl91Od7gBHKKm88FT15Bq+YM5B0OR+SoK14lI2ccnhKF B9ieWlskm5O6o1+AtkJO0gRJL1Jqx9nLEo2d8giIwpybfat5aCHlyfnQ4XK4+33ng+Q048BUk vR+POVihwugbVNf7zeiIwCe3xGwruwr0HKvwqQJ1oi9Duh+RwaxiQefIMDril6gpxRbZwBlmi ERpZxKXYFFtSfirM9fr3N68JG6tvKdWdTDBp5Gfq8pU8RGFvYi7gTAzM7/Y/v9lEMl1UINUhM 42PyyJY66oQYOuHOZj9DhtAR2nUy2lIXV+ci5WBRQbQk76jL/YglUgnvFmDURF4kRcV9RARVc yuUAM1dD72VwoL6XEb9+Waiv5MeEJxUQ0ZESekckMCIifBok906dwJsOUCg4Wth3oXVkWjzFB yOrt3nnC3o4heCbTFCdDCFdTOVne2/IQytXTXESIlb5BSO+sD22knBh+2YgFjfm4WONpg87BR YJ03wbcqVdKXWAVWAv4WX11uMrH2NiQ1V1QoSF3r8+GRGWEO7fvXqW70tGpug6oJuIWO12qxT dgcW2LqG26t2zet8PaYyn7ORDSmzBYUqp4fk2Adhwi0Jc5jiB3F2fXpDEzLWIpKOBXeRETaUe C1ZQw+ihdHQr6ysTZuoavbpL/NA46JUyj/z2iIGs9WBAe6f+9xKR6bagTqT9ajewjFsPx+fij hUnJT4fdUNEJB/ACFKldfzs6mFD0U8GgTGodEKSK78nWsPGy8gZP0bv/vzCmkFtDAAgNM8/Uk IYEDljwtI8HNo0XEHDJg==
Archived-At: <https://mailarchive.ietf.org/arch/msg/homenet/-WpzNzWh8yMBrkONKwv5q1xjAxI>
Subject: Re: [homenet] ISPs using DHCP for individual clients
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, 20 Nov 2020 15:57:52 -0000

Hi Daniel,

I can’t speak to A), but we have built and tested DHCPv6 infrastructure using ISC’s Kea with a Cassandra based back end with quite a bit of per-subscriber logic. The remote-id option is supplied by the relay and contains a number of flags, depending on the services the customer subscribes to. These indicate which options the response contains, for things like:

Single/multiple IPv6 prefixes for different service types
IA_NA for the CPE WAN interface 
v4 configuration for lightweight 4over6 softwire

For the last item, each subscribed user receives option 96 with unique option content (v4 address, v6 tunnel endpoint hint).

Thanks,
Ian


> On 20. Nov 2020, at 09:37, Daniel Migault <mglt.ietf@gmail.com> wrote:
> 
> Hi, 
> 
> While designing the DHCP options to configure the HNA we asked ourselves how likely ISP are:
> 
> A) How an ISP is likely to perform an action that is user specific based on a DHCP request. In our case the HNA sends to the DHCP server the certificate it will use to authenticate itself to a server the ISP has control on. The action is that the ISP will need to provision the server with that certificate.  
>  
> B) How an ISP is likely to provide a DHCP response that is specific to an individual user. The specific information is typically expected to be something provisioned for that user.
> 
> Yours, 
> Daniel
> 
> -- 
> Daniel Migault
> Ericsson
> _______________________________________________
> homenet mailing list
> homenet@ietf.org
> https://www.ietf.org/mailman/listinfo/homenet