Re: [sidr] draft-ietf-sidr-pfx-validate-04.txt

Pradosh Mohapatra <pmohapat@cisco.com> Wed, 28 March 2012 17:17 UTC

Return-Path: <pmohapat@cisco.com>
X-Original-To: sidr@ietfa.amsl.com
Delivered-To: sidr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 88B6C21E80AB for <sidr@ietfa.amsl.com>; Wed, 28 Mar 2012 10:17:47 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -10.229
X-Spam-Level:
X-Spam-Status: No, score=-10.229 tagged_above=-999 required=5 tests=[AWL=0.370, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id crSAzoBzDCsl for <sidr@ietfa.amsl.com>; Wed, 28 Mar 2012 10:17:45 -0700 (PDT)
Received: from mtv-iport-2.cisco.com (mtv-iport-2.cisco.com [173.36.130.13]) by ietfa.amsl.com (Postfix) with ESMTP id 2BB3421E80A4 for <sidr@ietf.org>; Wed, 28 Mar 2012 10:17:45 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=pmohapat@cisco.com; l=585; q=dns/txt; s=iport; t=1332955065; x=1334164665; h=subject:mime-version:from:in-reply-to:date:cc: content-transfer-encoding:message-id:references:to; bh=hVRrspbvTB09903dI5ANpOzAHPO0L9t9RMTgwsFCgT0=; b=DtHcFRryQ23eAOhftkWIY8PPxbVuVMxI7dAC3qgufaXoeqDQdFp2W835 DAdvWpckTW707Ix1IGHFEGc+wXmOdJjFTSV5aplPx5eakxuAo2TtaMw+R Qv539sWSDdKGTxB5utqSZrU0+kZAWdfrXIMJT3rkGa4hjan9RP87DWTEU w=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: Av0EAPdGc0+rRDoH/2dsb2JhbABFuGyBB4IJAQEBAwESASUCPxALRlcGNYdjBJt6nySQL2MEiFiNCY5FgWiDB4E2Fw
X-IronPort-AV: E=Sophos;i="4.73,662,1325462400"; d="scan'208";a="38056716"
Received: from mtv-core-2.cisco.com ([171.68.58.7]) by mtv-iport-2.cisco.com with ESMTP; 28 Mar 2012 17:17:45 +0000
Received: from sjc-vpn6-894.cisco.com (sjc-vpn6-894.cisco.com [10.21.123.126]) by mtv-core-2.cisco.com (8.14.3/8.14.3) with ESMTP id q2SHHicK012889; Wed, 28 Mar 2012 17:17:44 GMT
Mime-Version: 1.0 (Apple Message framework v1075.2)
Content-Type: text/plain; charset="us-ascii"; format="flowed"; delsp="yes"
From: Pradosh Mohapatra <pmohapat@cisco.com>
In-Reply-To: <m2r4wczm0s.wl%randy@psg.com>
Date: Wed, 28 Mar 2012 10:18:36 -0700
Content-Transfer-Encoding: 7bit
Message-Id: <8ED269A6-A913-46E3-A5FD-A3BDC6683D9F@cisco.com>
References: <m2k427h2oa.wl%randy@psg.com> <20336.45627.147578.984228@oz.mt.att.com> <BD572005-FDF6-4E13-B9E4-B23F15EB1E4D@cisco.com> <m2r4wczm0s.wl%randy@psg.com>
To: Randy Bush <randy@psg.com>
X-Mailer: Apple Mail (2.1075.2)
Cc: sidr wg list <sidr@ietf.org>
Subject: Re: [sidr] draft-ietf-sidr-pfx-validate-04.txt
X-BeenThere: sidr@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Secure Interdomain Routing <sidr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/sidr>, <mailto:sidr-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/sidr>
List-Post: <mailto:sidr@ietf.org>
List-Help: <mailto:sidr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/sidr>, <mailto:sidr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Mar 2012 17:17:47 -0000

>> I couldn't go to IETF either. The argument is over what the default
>> behavior should be (spec'ed). My vote is that origin validation  
>> should
>> NOT be performed on IBGP learnt prefixes by default as there is
>> potential for loops and inconsistency. For everything else, there are
>> knobs.
>
> you mean like there is with local pref?

No - knob to turn on IBGP validation.

This is what pfx-validate says:

This procedure SHOULD NOT be performed for Routes learned from peers  
of types other than EBGP.
    (Any of these MAY be overridden by configuration.)