Network Working Group
Internet Engineering Task Force (IETF)                        M. Andrews
Internet-Draft
Request for Comments: 7793                                           ISC
Intended status:
BCP: 163                                                        May 2016
Category: Best Current Practice                  October 11, 2015
Expires: April 13, 2016

 Add
ISSN: 2070-1721

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

Abstract

   RFC6598 specified that:

   RFC 6598 specifies 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
   from accidentally 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 memo documents an Internet Best Current Practice.

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   This Internet-Draft will expire on April 13, 2016.
   http://www.rfc-editor.org/info/rfc7793.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Changes to the IPv4 Locally-Served DNS Zones Registry . . . . . .   2
     2.1.  RFC6598  RFC 6598 Zones  . . . . . . . . . . . . . . . . . . . . . .   2
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   5.  Acknowledgements  Normative References  . . . . . . . . . . . . . . . . . . . .   5
   Acknowledgements  . .   5
   6.  Normative References . . . . . . . . . . . . . . . . . . . .   5 . .   6
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   [RFC6598] specified that: specifies 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 "IPv4 Locally-Served DNS Zone Registry Registry" established in [RFC6303].

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

2.  Changes to the IPv4 Locally-Served DNS Zones Registry

   To add

   IANA has added the following zone zones listed in RFC6598 Zones "RFC 6598 Zones" (Section 2.1) to
   the "IPv4 Locally-Served DNS Zone Registry".

2.1.  RFC6598  RFC 6598 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

      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

      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

      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

   Per this document, IANA to add has added the zones listed in RFC6598 Zones "RFC 6598
   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] [RFC6303] to break the DNSSEC chain of
   trust.

4.  Security Considerations

   This document is thought to does not present no additional security risks to the Internet.
   Internet than those described in [RFC6303] and [RFC6598].

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>.

   [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>.

Acknowledgements

   The author would like to thank Joe Abley for his review comments.

Author's Address

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

   Email: marka@isc.org