IETF Logo Mail Archive

RE: Dumb question about routing headers

Ron Bonica <rbonica@juniper.net> Mon, 25 May 2020 03:58 UTC

Return-Path: <rbonica@juniper.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 1E3263A0ACB for <ipv6@ietfa.amsl.com>; Sun, 24 May 2020 20:58:47 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.1
X-Spam-Level:
X-Spam-Status: No, score=-2.1 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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 (2048-bit key) header.d=juniper.net header.b=OEiW65cj; dkim=pass (1024-bit key) header.d=juniper.net header.b=fjJhOBZI
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 F-wylC0kRVU7 for <ipv6@ietfa.amsl.com>; Sun, 24 May 2020 20:58:45 -0700 (PDT)
Received: from mx0b-00273201.pphosted.com (mx0b-00273201.pphosted.com [67.231.152.164]) (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 42C373A0AC5 for <ipv6@ietf.org>; Sun, 24 May 2020 20:58:45 -0700 (PDT)
Received: from pps.filterd (m0108160.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04P3vwxh029461; Sun, 24 May 2020 20:58:34 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=PPS1017; bh=JcTcukULtXg6XR5q+TGaS6DyGed2/B9f3xxI2Bn7j2M=; b=OEiW65cj/rKm9QSUKZNnNhcLYIJivDd0qJFsfFpvMyVmr+2CTjW3MAtX1Xi+8RjT020S vfWNesVWlgGtguVUyKGpVZfot42FhHTh5TFhu/HoRYrgTya6ndBo6ufajVQTzHMM/WGW xE+aUfzUh3kkqJ0X0aUqyUM5n87/6gbtpqmxpYrhi/pdIcEQOWKefZEI1hT5u2QyWrHm MTav5En95FOyz3JH/fluQ3MBJOQRoYYwt1AnBdCBdn7S3Fp9vOf721y0+7eQt4EDqviY +iKUIrD/mHjP3+rnzRPE58iWFTXxIuQR8M3A1P57CHGniqvzF615mNzgQjR4SutBsd20 Hw==
Received: from nam10-mw2-obe.outbound.protection.outlook.com (mail-mw2nam10lp2102.outbound.protection.outlook.com [104.47.55.102]) by mx0b-00273201.pphosted.com with ESMTP id 3171rhj27x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 24 May 2020 20:58:33 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=iDig3nkme7SjQBy1mrM5cYRqFNgrdJ3tJfsHWED7ou69W/WgMgJ5zKjNLyWmhvIlOgJIOcp9ZG7RVZKffm5P98RpZnMpmKATPszAD3QNSXQgrXDFaAUCPBu79hr2yBLB+1fG8Vzv6RNwBL79IF01JY9gJb0fYYuA/a/vO8iocm714y29FkHb1O+FyocsDxNa7dnk5tLNqfXlF43DYVa7omTwOsTwLuWPlIMVq/X2PogG8jqYCGMzG8ceH3fdhk8xcm3rOI4XR8f5gkoO/H4665nanbsJtJ4sLXvenvqPAmGIxVW9B8GAZrr16Ng5rqOn5Wc5U6ge0aDNlGQ9XPH4WA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JcTcukULtXg6XR5q+TGaS6DyGed2/B9f3xxI2Bn7j2M=; b=A2nn+/6/b4zGzBue4XgYxsumr7gxhaprKTAMg54Om1jkOMz5YClrRMhABVSlyYBf/PxiACtkTtd1A9i0fSa/CyAlJyqtCliUjXaiMDeWulCjYHtPYrlBdqHCHGOKTWsdO+7e51TFVO/1ZSF73JhYlc2EslIyTOSYCyMIoOy1R2F0mLTuNLQ6P2ltyO1ZKZRTr53H3h977lfro14ksyp4qF/lBJufththnIQyENbE3m6XJJ/IKzS35niHvcwuU2ADFbLlUbAGfqBGAUmja1W1TOuRLRlGSXuS0/UFjz9nDu2wTE5SJSJX1wmxy3iVBcfFrjnsBtQMIKQy9W6XDzCx+g==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=juniper.net; dmarc=pass action=none header.from=juniper.net; dkim=pass header.d=juniper.net; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JcTcukULtXg6XR5q+TGaS6DyGed2/B9f3xxI2Bn7j2M=; b=fjJhOBZIlFKFVhHp9sTdZhhZMegD+s+NRm2lH95vuD+B4MWf/ZrRVWzUNdRw8bC5wnPXKuRTR/0sRMkrNjFeVz2W5ayKBGsuN7E8W3+K/unqWJw+6ZWDzd40VMRBoaaKv8HH3v+/k9cllkNRXJA2T273nJcICXBE/wZMy6CP2u8=
Received: from DM6PR05MB6348.namprd05.prod.outlook.com (2603:10b6:5:122::15) by DM6PR05MB5612.namprd05.prod.outlook.com (2603:10b6:5:c::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3045.9; Mon, 25 May 2020 03:58:31 +0000
Received: from DM6PR05MB6348.namprd05.prod.outlook.com ([fe80::c020:3bf5:7230:75e3]) by DM6PR05MB6348.namprd05.prod.outlook.com ([fe80::c020:3bf5:7230:75e3%4]) with mapi id 15.20.3045.014; Mon, 25 May 2020 03:58:31 +0000
From: Ron Bonica <rbonica@juniper.net>
To: Nick Hilliard <nick@foobar.org>, Brian E Carpenter <brian.e.carpenter@gmail.com>
CC: 6man <ipv6@ietf.org>
Subject: RE: Dumb question about routing headers
Thread-Topic: Dumb question about routing headers
Thread-Index: AQHWMg8Z2v4s/pQT+kis0flaeCgFI6i3vr+AgABuXlA=
Date: Mon, 25 May 2020 03:58:31 +0000
Message-ID: <DM6PR05MB63483C7B87D9727E8113E5B0AEB30@DM6PR05MB6348.namprd05.prod.outlook.com>
References: <4cf28892-12a9-7376-c378-4af46f7002c2@gmail.com> <a92543b3-41e2-0f4c-1cf3-34b68b3275ce@foobar.org>
In-Reply-To: <a92543b3-41e2-0f4c-1cf3-34b68b3275ce@foobar.org>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2020-05-25T03:58:26Z; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Method=Standard; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Name=0633b888-ae0d-4341-a75f-06e04137d755; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SiteId=bea78b3c-4cdb-4130-854a-1d193232e5f4; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ActionId=5306ebd7-fa5c-4103-8db1-3c163036f282; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2
dlp-product: dlpe-windows
dlp-version: 11.4.0.45
dlp-reaction: no-action
authentication-results: foobar.org; dkim=none (message not signed) header.d=none;foobar.org; dmarc=none action=none header.from=juniper.net;
x-originating-ip: [108.28.233.91]
x-ms-publictraffictype: Email
x-ms-office365-filtering-ht: Tenant
x-ms-office365-filtering-correlation-id: 4a0d71ba-314f-412d-3c58-08d8005fe3a1
x-ms-traffictypediagnostic: DM6PR05MB5612:
x-microsoft-antispam-prvs: <DM6PR05MB5612C64E1829A63D7AE4B06FAEB30@DM6PR05MB5612.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:4303;
x-forefront-prvs: 0414DF926F
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: aKmObHiMTyTWBH70hn9bHyx5w8YbOoduuNj6BbEUfyY5/29speeLCypWXp3vnFGsrbqXJKF6RZnHzmN9aOhgbQBgab0E4HrSYBTA2Y69fukHUTYnn3Sr+BOVvCwdGES491ffhMB8e82+BR7fjKHlbVjRmrRlK7f2ar1hD7ubBVoz3mPV5rDGxeUVeUeWeCy23d0+YOtzqsaFKv5SYii5Gaj0kj/FQ/Y70uHZvh+vvppVEUtibG+IBRMKJpYp6lW+nrjkeDL9dSpI8k2VLtTrofGXwct9gFI+wx3Tzh62GlsG0rqLqT6tRXAwlXmFq9oARFx7dZhdeMvasoZzHbKJPD9ZYtE7Cjxqg6qftor7XLGAqFIxK2tplH+1i2i9ciEmrMGET8Q4+iY+vtSLjyM+tQ==
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DM6PR05MB6348.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(376002)(366004)(346002)(39860400002)(396003)(136003)(66446008)(316002)(76116006)(66946007)(55016002)(66556008)(26005)(9686003)(66476007)(64756008)(4326008)(71200400001)(2906002)(186003)(5660300002)(86362001)(966005)(478600001)(7696005)(52536014)(6506007)(53546011)(8676002)(110136005)(8936002)(33656002); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata: t0yhbbcsZEXQ6wqLI8RGOTuFL10tp+QXAmV245HpBTaJIOOpBqMG/BNo3AH3SQ9JyjOovDluEhdriJJsE925kjYWy70Atj/WX1+RHk/xPfOYLS3IfNnj1Th7il+0xjxE4nhXQaCZ8vSlzMgpRHAQvxw7Va+OjFyq0kN4xvEyKTtcbCxCuFA9Atk7KPfpLQVhCXoB26mu5P0wzGjfWOB+IipRyh75gOchGRl41pxaqQastcrLNV0yyBGJTN+MKE7aoHMF/h7SOSgWj38hm5ukiwE6YtO1e18Am5iAMLTPeOjDm2XvlvKFtWTN0djOWc6fk+off/yqOsQlNSYM1+kG+4uD9kpiN3lrPqU7jd2vUkCHU4i8/QLtn8MkLAyhIIsWGkvMtUtI54X2Q7kJdM6j0qvhW0kOujHWuachDf6majRe9iH/IHDxYK2VnbQFMUHwANZJ7EMlxvqhVt83Yd/0m7L9uKQDUWO5GIAws/3gy8I=
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-Network-Message-Id: 4a0d71ba-314f-412d-3c58-08d8005fe3a1
X-MS-Exchange-CrossTenant-originalarrivaltime: 25 May 2020 03:58:31.2703 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: /bY/joy99lrVUa3TkIt8gPTNDzRa5skIFNDLkbHQuo21cLehh6VQymiIuf9Hm5XdywvTEdQbPyJFf0X1OiH59A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR05MB5612
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.676 definitions=2020-05-24_11:2020-05-22, 2020-05-24 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 priorityscore=1501 phishscore=0 suspectscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 malwarescore=0 bulkscore=0 cotscore=-2147483648 impostorscore=0 mlxlogscore=999 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005250030
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/eGOzl8IYWGc3o7-evDTD7D7ZXeg>
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: Mon, 25 May 2020 03:58:47 -0000

Folks,

The CRH forbids this. I am thinking that it should also forbid multicast addressed in the final position.

                                                                  Ron



Juniper Business Use Only

-----Original Message-----
From: ipv6 <ipv6-bounces@ietf.org> On Behalf Of Nick Hilliard
Sent: Sunday, May 24, 2020 5:23 PM
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Cc: 6man <ipv6@ietf.org>
Subject: Re: Dumb question about routing headers

[External Email. Be cautious of content]


Brian E Carpenter wrote on 24/05/2020 22:05:
> Is a routing header whose final destination is a multicast address, 
> but whose previous segments are all unicast, valid?

.... or whose intermediate destinations are multicast addresses?

https://urldefense.com/v3/__https://twitter.com/brenankeller/status/1068615953989087232__;!!NEt6yMaO-gk!X8uLVpisi3vLMZRjvkcOTpMes7OlQl-55faWFe0PNJR-JlvUwhNZo7SwaUwL8Usj$

Nick

--------------------------------------------------------------------
IETF IPv6 working group mailing list
ipv6@ietf.org
Administrative Requests: https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/ipv6__;!!NEt6yMaO-gk!X8uLVpisi3vLMZRjvkcOTpMes7OlQl-55faWFe0PNJR-JlvUwhNZo7SwaTpKlJe4$
--------------------------------------------------------------------

v2.23.0 | Report a Bug | By Email