From nobody Fri Jan 9 10:15:58 2015 Return-Path: X-Original-To: savi@ietfa.amsl.com Delivered-To: savi@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6F9C01A8AAE; Fri, 9 Jan 2015 10:15:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham 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 V_Ujz8MFtk4M; Fri, 9 Jan 2015 10:15:53 -0800 (PST) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 577A41A8AEC; Fri, 9 Jan 2015 10:15:52 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 5.10.0.p8 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150109181552.25413.82993.idtracker@ietfa.amsl.com> Date: Fri, 09 Jan 2015 10:15:52 -0800 Archived-At: Cc: savi@ietf.org Subject: [savi] I-D Action: draft-ietf-savi-dhcp-31.txt X-BeenThere: savi@ietf.org X-Mailman-Version: 2.1.15 List-Id: Mailing list for the SAVI working group at IETF List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Jan 2015 18:15:55 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Address Validation Improvements Working Group of the IETF. Title : SAVI Solution for DHCP Authors : Jun Bi Jianping Wu Guang Yao Fred Baker Filename : draft-ietf-savi-dhcp-31.txt Pages : 46 Date : 2015-01-09 Abstract: This document specifies the procedure for creating a binding between a DHCPv4/DHCPv6-assigned IP address and a binding anchor on a Source Address Validation Improvements (SAVI) device. The bindings set up by this procedure are used to filter packets with forged source IP addresses. This mechanism complements BCP 38 ingress filtering, providing finer-grained source IP address validation. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-savi-dhcp/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-savi-dhcp-31 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-ietf-savi-dhcp-31 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Thu Jan 15 09:57:27 2015 Return-Path: X-Original-To: savi@ietfa.amsl.com Delivered-To: savi@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CD75E1B2F34 for ; Thu, 15 Jan 2015 09:57:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=ham 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 FicxJa4P5V3b for ; Thu, 15 Jan 2015 09:57:23 -0800 (PST) Received: from mail-wi0-x235.google.com (mail-wi0-x235.google.com [IPv6:2a00:1450:400c:c05::235]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E432E1B2F33 for ; Thu, 15 Jan 2015 09:57:22 -0800 (PST) Received: by mail-wi0-f181.google.com with SMTP id hi2so19536145wib.2 for ; Thu, 15 Jan 2015 09:57:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=iya1S3HVU7ANHGP2OCZoKlFGdIge9Nk1hFZlNMaedaA=; b=E8vOiQNIDnxSVC7sWwDzXg3Ldy1NgQA17m+rUciN/QOCOdji3yx9KucRNuzJeGg1Og kftRhEeUaGVkIYNAFl4l9kLHwtGDQEXTL0odEv7REgLQgxo4vQuUxGYLRlAsACIY06YG EQ7NT9equV1qHKrqCVt/SwuUkNZrluulNhxUDnlfAj3hzURUXidSn/rSEx0P10HnSqRM ganxw9MyYm2PCqgDTJQMsqN3mSW0j2WtkrzeFULt4kXwVa+q5Ch8UlM55FpTXcSotjHy T4SBCRRaP5m/FcDOFA51SqMVzGz1Jd1kScgP239ukosVoKvI2iFzKOjYTDIFtYSAlz0i CNvg== MIME-Version: 1.0 X-Received: by 10.180.8.202 with SMTP id t10mr21632044wia.15.1421344641348; Thu, 15 Jan 2015 09:57:21 -0800 (PST) Received: by 10.216.217.142 with HTTP; Thu, 15 Jan 2015 09:57:21 -0800 (PST) Date: Thu, 15 Jan 2015 18:57:21 +0100 Message-ID: From: Jean-Michel Combes To: SAVI Mailing List Content-Type: multipart/alternative; boundary=bcaec550ac887384ef050cb496ca Archived-At: Subject: [savi] DHCP SAVI: new WGLC X-BeenThere: savi@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Mailing list for the SAVI working group at IETF List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Jan 2015 17:57:25 -0000 --bcaec550ac887384ef050cb496ca Content-Type: text/plain; charset=UTF-8 Folks, based on the IESG review, many modifications have been done in the document (current version is 31) since the last WGLC (version was 26). If you have concerns regarding this new version, please, send your comments on the ML. If you agree with this new version, please, don't hesitate to say it. This WGLC will end the 2015-01-29. Thanks in advance for your replies. Best regards, JMC. --bcaec550ac887384ef050cb496ca Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Folks,

based on the IESG revie= w, many modifications have been done in the document (current version is 31= ) since the last WGLC (version was 26).

If you have concerns r= egarding this new version, please, send your comments on the ML.
<= div>If you agree with this new version, please, don't hesitate to say i= t.

This WGLC will end the 2015-01-29.

Thanks in advance for your replies.

Best regard= s,

JMC. --bcaec550ac887384ef050cb496ca-- From nobody Wed Jan 21 01:27:46 2015 Return-Path: X-Original-To: savi@ietfa.amsl.com Delivered-To: savi@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 862E91A0E10 for ; Wed, 21 Jan 2015 01:27:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.1 X-Spam-Level: X-Spam-Status: No, score=-0.1 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=ham 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 jCblCuOV_QK8 for ; Wed, 21 Jan 2015 01:27:43 -0800 (PST) Received: from mail-ie0-x22e.google.com (mail-ie0-x22e.google.com [IPv6:2607:f8b0:4001:c03::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CFC3E1A09C9 for ; Wed, 21 Jan 2015 01:27:42 -0800 (PST) Received: by mail-ie0-f174.google.com with SMTP id at20so39311453iec.5 for ; Wed, 21 Jan 2015 01:27:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:from:to:references:in-reply-to:subject:date:mime-version :content-type:thread-index:content-language; bh=y/6pV4RzNxpats53wvt4sJ8BdP4S9QXBwwecCGBOUiQ=; b=TivTh3SrJ6umhuTvuUwZe/oGQuzAkgWuuvfbTv5dOsnZfAbzea/zGpF+kFWuRAZ0kI V85qtj3H8RaAOSv7MI1MGIA4jPAevrJNAaojYIz2eiOLA+LLa0D00ytkrlOwIfAPITSV GZxpDBPCeJJp1D92tVoZQor2Ab+qVqqd4KZJIhcyiZ/l+JfWh/tPlV09RWffMi0ljXV1 YPVKX7wmrLjlU80CXNXkGixLVchHiLzkDEZIuYSP3ax0zGXecrSFhmWTSj8ha4jWbYUh cET7QH8i/Z0tbp9hsrZ/Kv1W/mCP2aeIuHGYy1ZtdTGqyKuHezzHNpOzJdh568On3uWo w0vw== X-Received: by 10.50.66.179 with SMTP id g19mr31939596igt.34.1421832462052; Wed, 21 Jan 2015 01:27:42 -0800 (PST) Received: from PC ([218.241.109.163]) by mx.google.com with ESMTPSA id ii3sm5214344igb.13.2015.01.21.01.27.39 (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 21 Jan 2015 01:27:41 -0800 (PST) Message-ID: <54bf710d.836f320a.5393.fffffc1a@mx.google.com> X-Google-Original-Message-ID: <000701d0355c$92b1e5e0$b815b1a0$@yeh.sdo@gmail.com> From: "Leaf Yeh" To: "'Jean-Michel Combes'" , "'SAVI Mailing List'" References: In-Reply-To: Date: Wed, 21 Jan 2015 17:28:04 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01D0359F.A0D525E0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AdAw7LrpIEe4IM4OS7639hqX5bgRYwDeBVMQ Content-Language: zh-cn Archived-At: Subject: Re: [savi] DHCP SAVI: new WGLC X-BeenThere: savi@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Mailing list for the SAVI working group at IETF List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jan 2015 09:27:44 -0000 This is a multi-part message in MIME format. ------=_NextPart_000_0008_01D0359F.A0D525E0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I support this draft could move forward,=20 =20 though I=E2=80=99d really like the idea to separate the DHCPv4 & DHCPv6 = parts into different drafts. I regard the solution of SAVi-DHCPv4 as an = irreplaceable (& independent) solution in SAVi family, because DHCPv4 is = the only dynamic (& auto-configuration) mechanism for address assignment = in IPv4; but the solution of SAVi-DHCPv6 looks like the alternative = solution of RFC6620 (SAVi-SLAAC) in IPv6, right? =20 =20 Best Regards. Leaf =20 =20 =20 From: savi [mailto:savi-bounces@ietf.org] On Behalf Of Jean-Michel = Combes Sent: Friday, January 16, 2015 1:57 AM To: SAVI Mailing List Subject: [savi] DHCP SAVI: new WGLC =20 Folks, based on the IESG review, many modifications have been done in the = document (current version is 31) since the last WGLC (version was 26). If you have concerns regarding this new version, please, send your = comments on the ML. If you agree with this new version, please, don't hesitate to say it. =20 This WGLC will end the 2015-01-29. =20 Thanks in advance for your replies. Best regards, JMC. ------=_NextPart_000_0008_01D0359F.A0D525E0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

I support this draft could move forward,

 

though I=E2=80=99d really like the idea to separate the DHCPv4 & = DHCPv6 parts into different drafts. I regard the solution of SAVi-DHCPv4 = as an irreplaceable (& independent) solution in SAVi family, because = DHCPv4 is the only dynamic (& auto-configuration) mechanism for = address assignment in IPv4; but the solution of SAVi-DHCPv6 looks like = the alternative solution of RFC6620 (SAVi-SLAAC) in IPv6, = right?

 

 

Best Regards.

Leaf

 

 

 

From:= savi = [mailto:savi-bounces@ietf.org] On Behalf Of Jean-Michel = Combes
Sent: Friday, January 16, 2015 1:57 AM
To: = SAVI Mailing List
Subject: [savi] DHCP SAVI: new = WGLC

 

Folks,

based on the IESG = review, many modifications have been done in the document (current = version is 31) since the last WGLC (version was = 26).

If you have concerns regarding this new version, please, = send your comments on the ML.

If you agree with this new version, = please, don't hesitate to say it.

 

This WGLC will end the = 2015-01-29.

 

Thanks in advance for your = replies.

Best = regards,

JMC.

------=_NextPart_000_0008_01D0359F.A0D525E0-- From nobody Tue Jan 27 07:33:21 2015 Return-Path: X-Original-To: savi@ietfa.amsl.com Delivered-To: savi@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5BDAA1A8825 for ; Tue, 27 Jan 2015 07:33:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=ham 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 0mBd7wYDE0hI for ; Tue, 27 Jan 2015 07:33:05 -0800 (PST) Received: from mail-we0-x22e.google.com (mail-we0-x22e.google.com [IPv6:2a00:1450:400c:c03::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6ECEE1A8771 for ; Tue, 27 Jan 2015 07:33:05 -0800 (PST) Received: by mail-we0-f174.google.com with SMTP id w55so10168873wes.5 for ; Tue, 27 Jan 2015 07:33:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=bK/A1MDqg1jamOdfH7i9DvbjXzNtQpcV8pwc74ahF/8=; b=GytXigCWzLopFS+bMsS78Hy4U7N4sjrWpZSzGPlrRHKQPgKT0w0apU2t4tTu/nc7a7 5/1iJ2yIGow9oohq7y4bUsAH9LSHMi0gAcj7Jb/xqAI1Q7h8TpQ+4rZ06/5qHHnBoBVf clhjXeboHwJePjAmvdOFCAkfukrdLNX/IJ1EKHTeum5QfS0L+42hBE0j7/n1FQo5IsjW X+yy4tIwnJNMDEtF3aP7b+E3WtATwbwdz6CF4GMCSRthLJh39xbKkWcvJiPPkHsdqP+6 Qn8tqNxFEfMYGtgk0emfUKVKWdsHXp+ac5lPsTTxpdsGBxNLyn7arR0hSQzri1mK/Naf MbfA== MIME-Version: 1.0 X-Received: by 10.194.59.234 with SMTP id c10mr3824899wjr.49.1422372784196; Tue, 27 Jan 2015 07:33:04 -0800 (PST) Received: by 10.216.166.196 with HTTP; Tue, 27 Jan 2015 07:33:04 -0800 (PST) In-Reply-To: <54bf710d.836f320a.5393.fffffc1a@mx.google.com> References: <54bf710d.836f320a.5393.fffffc1a@mx.google.com> Date: Tue, 27 Jan 2015 16:33:04 +0100 Message-ID: From: Jean-Michel Combes To: Leaf Yeh Content-Type: multipart/alternative; boundary=047d7ba96ed68a5167050da3f844 Archived-At: Cc: SAVI Mailing List Subject: Re: [savi] DHCP SAVI: new WGLC X-BeenThere: savi@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Mailing list for the SAVI working group at IETF List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jan 2015 15:33:11 -0000 --047d7ba96ed68a5167050da3f844 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Leaf, 2015-01-21 10:28 GMT+01:00 Leaf Yeh : > I support this draft could move forward, > > > > though I=E2=80=99d really like the idea to separate the DHCPv4 & DHCPv6 p= arts into > different drafts. I regard the solution of SAVi-DHCPv4 as an irreplaceabl= e > (& independent) solution in SAVi family, because DHCPv4 is the only dynam= ic > (& auto-configuration) mechanism for address assignment in IPv4; but the > solution of SAVi-DHCPv6 looks like the alternative solution of RFC6620 > (SAVi-SLAAC) in IPv6, right? > The main reason to have both DHCPv4 and DHCPv6 in a same document is because it has been decided in the past such a thing: "Dec 2010 - Submit DHCP solution to IESG for Proposed Standard" (cf. WG roadmap). Best regards, JMC. > > > > > Best Regards. > > Leaf > > > > > > > > *From:* savi [mailto:savi-bounces@ietf.org] *On Behalf Of *Jean-Michel > Combes > *Sent:* Friday, January 16, 2015 1:57 AM > *To:* SAVI Mailing List > *Subject:* [savi] DHCP SAVI: new WGLC > > > > Folks, > > based on the IESG review, many modifications have been done in the > document (current version is 31) since the last WGLC (version was 26). > > If you have concerns regarding this new version, please, send your > comments on the ML. > > If you agree with this new version, please, don't hesitate to say it. > > > > This WGLC will end the 2015-01-29. > > > > Thanks in advance for your replies. > > Best regards, > > JMC. > --047d7ba96ed68a5167050da3f844 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Leaf,

2015-01-21 10:28 GMT+01:00 Leaf Yeh <leaf.yeh.= sdo@gmail.com>:

I support this= draft could move forward,

= =C2=A0

though I=E2=80=99d really like the idea to separate the DHCPv4 & DHCP= v6 parts into different drafts. I regard the solution of SAVi-DHCPv4 as an = irreplaceable (& independent) solution in SAVi family, because DHCPv4 i= s the only dynamic (& auto-configuration) mechanism for address assignm= ent in IPv4; but the solution of SAVi-DHCPv6 looks like the alternative sol= ution of RFC6620 (SAVi-SLAAC) in IPv6, right?


<JMC>
The main reason to have both= DHCPv4 and DHCPv6 in a same document is because it has been decided in the= past such a thing: "Dec 2010 - Submit DHCP solution to IESG for Propo= sed Standard" (cf. WG roadmap).
</JMC>

Best regards,

JMC.
=C2=A0

--047d7ba96ed68a5167050da3f844-- From nobody Tue Jan 27 08:28:59 2015 Return-Path: X-Original-To: savi@ietfa.amsl.com Delivered-To: savi@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E0B9F1A88C6; Tue, 27 Jan 2015 08:28:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham 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 rqjQc6yXUYSa; Tue, 27 Jan 2015 08:28:54 -0800 (PST) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 54F101A888B; Tue, 27 Jan 2015 08:28:53 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 5.10.1.p1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20150127162853.29466.52912.idtracker@ietfa.amsl.com> Date: Tue, 27 Jan 2015 08:28:53 -0800 Archived-At: Cc: savi@ietf.org Subject: [savi] I-D Action: draft-ietf-savi-dhcp-32.txt X-BeenThere: savi@ietf.org X-Mailman-Version: 2.1.15 List-Id: Mailing list for the SAVI working group at IETF List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jan 2015 16:28:57 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Address Validation Improvements Working Group of the IETF. Title : SAVI Solution for DHCP Authors : Jun Bi Jianping Wu Guang Yao Fred Baker Filename : draft-ietf-savi-dhcp-32.txt Pages : 46 Date : 2015-01-27 Abstract: This document specifies the procedure for creating a binding between a DHCPv4/DHCPv6-assigned IP address and a binding anchor on a Source Address Validation Improvements (SAVI) device. The bindings set up by this procedure are used to filter packets with forged source IP addresses. This mechanism complements BCP 38 ingress filtering, providing finer-grained source IP address validation. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-savi-dhcp/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-savi-dhcp-32 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-ietf-savi-dhcp-32 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/