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Versions: (draft-andrews-dnsop-rfc6598-rfc6303) 00 01 02 03 04 05 RFC 7793

Network Working Group                                         M. Andrews
Internet-Draft                                                       ISC
Intended status: Best Current Practice                  October 11, 2015
Expires: April 13, 2016


 Add 100.64.0.0/10 prefixes to IPv4 Locally-Served DNS Zones Registry.
                  draft-ietf-dnsop-rfc6598-rfc6303-05

Abstract

   RFC6598 specified that: "Reverse DNS queries for Shared Address Space
   addresses [100.64.0.0/10] MUST NOT be forwarded to the global DNS
   infrastructure."

   This document formally directs IANA to add the associated zones to
   the "IPv4 Locally-Served DNS Zones Registry" to prevent such queries
   accidently leaking to the global DNS infrastructure.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 13, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of



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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Changes to IPv4 Locally-Served DNS Zones Registry . . . . . .   2
     2.1.  RFC6598 Zones . . . . . . . . . . . . . . . . . . . . . .   2
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   6.  Normative References  . . . . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   [RFC6598] specified that: "Reverse DNS queries for Shared Address
   Space addresses [100.64.0.0/10] MUST NOT be forwarded to the global
   DNS infrastructure."  [RFC6303] provides guidance on handling such
   queries.

   This document directs the IANA to add the IPv4 reverse zones
   corresponding to 100.64.0.0/10, a netblock reserved in [RFC6598], to
   the IPv4 Locally-Served DNS Zone Registry established in [RFC6303].

   Unlike [RFC1918] address, which are not expected to be seen by other
   parties, the addresses from [RFC6598] are expected to be seen by
   parties other than those deploying the addresses, so it is more
   crucial that recursive nameservers default to serving these zones
   locally.

2.  Changes to IPv4 Locally-Served DNS Zones Registry

   To add the following zone listed in RFC6598 Zones (Section 2.1) to
   the "IPv4 Locally-Served DNS Zone Registry".

2.1.  RFC6598 Zones

      64.100.IN-ADDR.ARPA

      65.100.IN-ADDR.ARPA

      66.100.IN-ADDR.ARPA

      67.100.IN-ADDR.ARPA

      68.100.IN-ADDR.ARPA




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      69.100.IN-ADDR.ARPA

      70.100.IN-ADDR.ARPA

      71.100.IN-ADDR.ARPA

      72.100.IN-ADDR.ARPA

      73.100.IN-ADDR.ARPA

      74.100.IN-ADDR.ARPA

      75.100.IN-ADDR.ARPA

      76.100.IN-ADDR.ARPA

      77.100.IN-ADDR.ARPA

      78.100.IN-ADDR.ARPA

      79.100.IN-ADDR.ARPA

      80.100.IN-ADDR.ARPA

      81.100.IN-ADDR.ARPA

      82.100.IN-ADDR.ARPA

      83.100.IN-ADDR.ARPA

      84.100.IN-ADDR.ARPA

      85.100.IN-ADDR.ARPA

      86.100.IN-ADDR.ARPA

      87.100.IN-ADDR.ARPA

      88.100.IN-ADDR.ARPA

      89.100.IN-ADDR.ARPA

      90.100.IN-ADDR.ARPA

      91.100.IN-ADDR.ARPA

      92.100.IN-ADDR.ARPA




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      93.100.IN-ADDR.ARPA

      94.100.IN-ADDR.ARPA

      95.100.IN-ADDR.ARPA

      96.100.IN-ADDR.ARPA

      97.100.IN-ADDR.ARPA

      98.100.IN-ADDR.ARPA

      99.100.IN-ADDR.ARPA

      100.100.IN-ADDR.ARPA

      101.100.IN-ADDR.ARPA

      102.100.IN-ADDR.ARPA

      103.100.IN-ADDR.ARPA

      104.100.IN-ADDR.ARPA

      105.100.IN-ADDR.ARPA

      106.100.IN-ADDR.ARPA

      107.100.IN-ADDR.ARPA

      108.100.IN-ADDR.ARPA

      109.100.IN-ADDR.ARPA

      110.100.IN-ADDR.ARPA

      111.100.IN-ADDR.ARPA

      112.100.IN-ADDR.ARPA

      113.100.IN-ADDR.ARPA

      114.100.IN-ADDR.ARPA

      115.100.IN-ADDR.ARPA

      116.100.IN-ADDR.ARPA




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      117.100.IN-ADDR.ARPA

      118.100.IN-ADDR.ARPA

      119.100.IN-ADDR.ARPA

      120.100.IN-ADDR.ARPA

      121.100.IN-ADDR.ARPA

      122.100.IN-ADDR.ARPA

      123.100.IN-ADDR.ARPA

      124.100.IN-ADDR.ARPA

      125.100.IN-ADDR.ARPA

      126.100.IN-ADDR.ARPA

      127.100.IN-ADDR.ARPA

3.  IANA Considerations

   This document directs IANA to add the zones listed in RFC6598 Zones
   (Section 2.1) to the "IPv4 Locally-Served DNS Zone Registry".

   IANA is reminded that an insecure delegation for these zones is
   required for compliance with [RFC6598] to break the DNSSEC chain of
   trust.

4.  Security Considerations

   This document is thought to present no additional security risks to
   the Internet.

5.  Acknowledgements

   I would like to thank Joe Abley for his review comments.

6.  Normative References

   [RFC1918]  Rekhter, Y., Moskowitz, B., Karrenberg, D., de Groot, G.,
              and E. Lear, "Address Allocation for Private Internets",
              BCP 5, RFC 1918, DOI 10.17487/RFC1918, February 1996,
              <http://www.rfc-editor.org/info/rfc1918>.





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   [RFC6303]  Andrews, M., "Locally Served DNS Zones", BCP 163, RFC
              6303, DOI 10.17487/RFC6303, July 2011,
              <http://www.rfc-editor.org/info/rfc6303>.

   [RFC6598]  Weil, J., Kuarsingh, V., Donley, C., Liljenstolpe, C., and
              M. Azinger, "IANA-Reserved IPv4 Prefix for Shared Address
              Space", BCP 153, RFC 6598, DOI 10.17487/RFC6598, April
              2012, <http://www.rfc-editor.org/info/rfc6598>.

Author's Address

   M. Andrews
   Internet Systems Consortium
   950 Charter Street
   Redwood City, CA  94063
   US

   Email: marka@isc.org

































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