Re: [OPSEC] Éric Vyncke's No Objection on draft-ietf-opsec-urpf-improvements-03: (with COMMENT)

"Sriram, Kotikalapudi (Fed)" <kotikalapudi.sriram@nist.gov> Sat, 31 August 2019 04:46 UTC

Return-Path: <kotikalapudi.sriram@nist.gov>
X-Original-To: opsec@ietfa.amsl.com
Delivered-To: opsec@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F28B512004C; Fri, 30 Aug 2019 21:46:20 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.002
X-Spam-Level:
X-Spam-Status: No, score=-2.002 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nist.gov
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 XnXd95631pQe; Fri, 30 Aug 2019 21:46:17 -0700 (PDT)
Received: from GCC02-BL0-obe.outbound.protection.outlook.com (mail-bl2gcc02on2102.outbound.protection.outlook.com [40.107.89.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7AC0E120026; Fri, 30 Aug 2019 21:46:17 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UP1/eCHqEz7x9tLvs+SAYGUBmUxwdU17Tr3ERqfIoaRMcfkq7kjoh765i5V/ZUrRii7snktwnIDF7xWJLkaCFYNnYnKwlf5ij3xbC/8JCKcMhf7ySzKybISYog067S8UG2BFD8q9V4njbcE79RzMxkbXIsqIF/y3jliB4uIsNUTrksgCAl8xJbeJFda5d21lsh5QdVtQ2T4ZW1LZN68hqaNJF1Z/RoTbHuhAa0rMvaXiT/v+Ze607dxupd1tKrcNHskW5GQTXdIn3JiHU6BYrlv/EwaVhGA6xafLEP6ss/LbFXf4dUudLShgBjBXtRmD6/dtmQz3wJL3naFeqveMDw==
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=ESYkjvsfCpo3j52ecVxj2NzakXhdAQw8+UZA/6NTDpk=; b=ZCiD6NQShVKixQzCHDLTWYTZxmPSMvWUX+kUn5lDbX0KJ6M7NsikwEfU4Z/o6IhltitpLSbGevxL/k5EJIHSVqHES12gIrIwiBnpoMbadW4KIe1nI1ua5rbQjBkVwifuhcwluTN1PkGFddRGasJp41pk0Tjt7iCqUiBHQvGptdqOR18rtE5aPgpTmzAjeJ+4OCmz2SJaXDX7lkFyVwHf/eCDQLz7l0Y1v4XzVMarbUo5rz95O0HGGp9CNYX0byCwvQITxNyg31w0dAfzAR3WBlJr/LgBd9wEjlIANnAzIms1Qmsur+tH9YBs+1JTQ8npIcPv+R5C4sRgujqM1mpnYw==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nist.gov; dmarc=pass action=none header.from=nist.gov; dkim=pass header.d=nist.gov; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nist.gov; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ESYkjvsfCpo3j52ecVxj2NzakXhdAQw8+UZA/6NTDpk=; b=lfOFEN1jEzO/nXc5ClDYriGu8kEn+cfqirTLUu4SoDw0+GO2sdfSIQRopoVLh94DRqSXAocMXhYSIClWbSmmaF/bwA9YnBbtyacIP7sGM0okujmsUnxLU65yA31/ZkHJ9UUUF3TcSXteyhVcPbCLGOlH8Nei1RbbzzkfzZ800ME=
Received: from BL0PR0901MB4563.namprd09.prod.outlook.com (52.135.47.206) by BL0PR0901MB4355.namprd09.prod.outlook.com (52.135.47.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2220.19; Sat, 31 Aug 2019 04:46:14 +0000
Received: from BL0PR0901MB4563.namprd09.prod.outlook.com ([fe80::b532:35b9:abd0:ee7e]) by BL0PR0901MB4563.namprd09.prod.outlook.com ([fe80::b532:35b9:abd0:ee7e%4]) with mapi id 15.20.2220.013; Sat, 31 Aug 2019 04:46:14 +0000
From: "Sriram, Kotikalapudi (Fed)" <kotikalapudi.sriram@nist.gov>
To: The IESG <iesg@ietf.org>, =?iso-8859-1?Q?=C9ric_Vyncke?= <evyncke@cisco.com>
CC: "draft-ietf-opsec-urpf-improvements@ietf.org" <draft-ietf-opsec-urpf-improvements@ietf.org>, Sandra Murphy <sandy@tislabs.com>, "opsec-chairs@ietf.org" <opsec-chairs@ietf.org>, Sandra Murphy <sandy@tislabs.com>, "opsec@ietf.org" <opsec@ietf.org>, Warren Kumari <warren@kumari.net>
Thread-Topic: =?iso-8859-1?Q?=C9ric_Vyncke's_No_Objection_on_draft-ietf-opsec-urpf-impr?= =?iso-8859-1?Q?ovements-03:_(with_COMMENT)?=
Thread-Index: AQHVWCw3l+JDCHp1g06ot+mqkOpTCacUtlWA
Date: Sat, 31 Aug 2019 04:46:13 +0000
Message-ID: <BL0PR0901MB45633C640D1CFE014305500584BC0@BL0PR0901MB4563.namprd09.prod.outlook.com>
References: <156639747640.25777.13888707111707970209.idtracker@ietfa.amsl.com>
In-Reply-To: <156639747640.25777.13888707111707970209.idtracker@ietfa.amsl.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: spf=none (sender IP is ) smtp.mailfrom=kotikalapudi.sriram@nist.gov;
x-originating-ip: [129.6.223.86]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 27061c6e-1614-43bb-8202-08d72dce2755
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020); SRVR:BL0PR0901MB4355;
x-ms-traffictypediagnostic: BL0PR0901MB4355:
x-ms-exchange-purlcount: 1
x-microsoft-antispam-prvs: <BL0PR0901MB435550F502A9D605D10CE41884BC0@BL0PR0901MB4355.namprd09.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:10000;
x-forefront-prvs: 014617085B
x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(366004)(39840400004)(346002)(376002)(136003)(396003)(199004)(189003)(81166006)(71190400001)(316002)(486006)(6506007)(99286004)(33656002)(110136005)(305945005)(6306002)(9686003)(7696005)(229853002)(966005)(54906003)(14454004)(478600001)(55016002)(76176011)(6246003)(74316002)(3846002)(6116002)(2906002)(71200400001)(8936002)(66066001)(11346002)(446003)(66946007)(102836004)(256004)(7736002)(6436002)(224303003)(53936002)(4326008)(5660300002)(26005)(52536014)(86362001)(81156014)(66446008)(66476007)(186003)(476003)(76116006)(66556008)(64756008)(25786009); DIR:OUT; SFP:1102; SCL:1; SRVR:BL0PR0901MB4355; H:BL0PR0901MB4563.namprd09.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1;
received-spf: None (protection.outlook.com: nist.gov does not designate permitted sender hosts)
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam-message-info: s37WN6cwDq9zD9jU2J7yI3ImH2Br4/xMA+03ecG5ugdSkfs46jMRZUvOVAwbnG93fV4cViD5a8E7EmRniJyy3qzAR2AT/59UwAjLVK9Chs5PB3Mm15DuilCBknG70Sm5G2MECiXfn+3rxU3zx0cuVlaLsMJwXS0Jpejz+ye3lLif3k/Zbuv3RgDQ37xQZn1PaAe5LRV8trBQTTBmMrrHXVauYlJDj0N38LLfNgISXfz6fWBgQQMBNeEnSNjG8vzCcJcXUGqkr40l27c769bD9DQRKGDs7Z9H421yxoovPsbRRykeie3OimdmO79tt1YGcOVtKoaNOKZPm31pLAvCodxcVjclqpF6SF4wbxKKkOOnsTap5Nst7otBDSaslfYiITrZCA6V/euH8sHVQyWvAALi01r8G3Vd+XW6zHgvZck=
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: nist.gov
X-MS-Exchange-CrossTenant-Network-Message-Id: 27061c6e-1614-43bb-8202-08d72dce2755
X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Aug 2019 04:46:13.9570 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 2ab5d82f-d8fa-4797-a93e-054655c61dec
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: 38QYwC29nji5IxFpE8cHqzuARMWyuK3K+tY7PXQpw9DoZ6SZDyRYBCip/YJ+MKcYztVH9zw69QH5reX+WIas2A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR0901MB4355
Archived-At: <https://mailarchive.ietf.org/arch/msg/opsec/APVOdWkDWWI09b5NOSGf6OqxcnU>
Subject: Re: [OPSEC] =?iso-8859-1?q?=C9ric_Vyncke=27s_No_Objection_on_draft-i?= =?iso-8859-1?q?etf-opsec-urpf-improvements-03=3A_=28with_COMMENT=29?=
X-BeenThere: opsec@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: opsec wg mailing list <opsec.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/opsec>, <mailto:opsec-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/opsec/>
List-Post: <mailto:opsec@ietf.org>
List-Help: <mailto:opsec-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/opsec>, <mailto:opsec-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 31 Aug 2019 04:46:22 -0000

Eric,

Thank you for your comments. Sorry about the delay in replying.
We have uploaded a new version and have included changes
reflecting your comments. Please see:
https://tools.ietf.org/rfcdiff?url2=draft-ietf-opsec-urpf-improvements-04.txt  
Please also see responses to your comments inline below. 

-- Abstract --
>The abstract reads like 'promises' but not as a summary of the document. Is
>there any chance to add 2 lines summarizing the 'how' ?
>

Added some more wording in the abstract to address your comment.
We have summarized the 'how' in the intro with a whole paragraph.
Probably better not to make the abstract overly long.
 
>-- Section 1.1 --
>I am sure that by now you know that you have to use RFC 8174 boilerplate ;-)
>

Yes. Done.

>-- Section 2.2 --
>For completeness and symmetry with section 2.3, please explain which packets
>will be dropped.
>

Good catch. Done.

>-- Section 2.3 --
>Suggestion: define "RPF list" before first use (even if mostly obvious).
>
>Please define "lateral peer" and why it is different to any other "peer".
>

Added Section 1.1. "Terminology" per your suggestion.
We've provided definitions of these terms and more there.


>-- Section 3.1 --
>Please define the "cone" used in this section. First time that I ever read this
>term and the RIPE paper does not explain it either (of course I am not a
>routing expert).
>

Definition of customer cone is also included in the Terminology section 1.1.


>== NITS ==
>
>-- Section 1 --
>Beside the intro, this section also introduces some terminology wording. May I
>suggest to have a (sub)section about "terminology" ?
>

Good suggestion. Done.

>-- Section 2.1 --
>CMTS was introduced as an acronym but not DSLAM.
>
>
Mention of DSLAM was not essential. So it is removed in the updated version.
Mention of CMTS, PDN-GW is sufficient in that context
and they are introduced.

Sriram