draft-ietf-dnsop-rfc6598-rfc6303-05.txt   rfc7793.txt 
Network Working Group M. Andrews Internet Engineering Task Force (IETF) M. Andrews
Internet-Draft ISC Request for Comments: 7793 ISC
Intended status: Best Current Practice October 11, 2015 BCP: 163 May 2016
Expires: April 13, 2016 Category: Best Current Practice
ISSN: 2070-1721
Add 100.64.0.0/10 prefixes to IPv4 Locally-Served DNS Zones Registry. Adding 100.64.0.0/10 Prefixes to the
draft-ietf-dnsop-rfc6598-rfc6303-05 IPv4 Locally-Served DNS Zones Registry
Abstract Abstract
RFC6598 specified that: "Reverse DNS queries for Shared Address Space 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 addresses [100.64.0.0/10] MUST NOT be forwarded to the global DNS
infrastructure." infrastructure."
This document formally directs IANA to add the associated zones to This document formally directs IANA to add the associated zones to
the "IPv4 Locally-Served DNS Zones Registry" to prevent such queries the "IPv4 Locally-Served DNS Zones Registry" to prevent such queries
accidently leaking to the global DNS infrastructure. from accidentally leaking to the global DNS infrastructure.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This memo documents an Internet Best Current Practice.
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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Internet-Drafts are draft documents valid for a maximum of six months This document is a product of the Internet Engineering Task Force
and may be updated, replaced, or obsoleted by other documents at any (IETF). It represents the consensus of the IETF community. It has
time. It is inappropriate to use Internet-Drafts as reference received public review and has been approved for publication by the
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BCPs is available in Section 2 of RFC 5741.
This Internet-Draft will expire on April 13, 2016. Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7793.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
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described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Changes to IPv4 Locally-Served DNS Zones Registry . . . . . . 2 2. Changes to the IPv4 Locally-Served DNS Zones Registry . . . . 2
2.1. RFC6598 Zones . . . . . . . . . . . . . . . . . . . . . . 2 2.1. RFC 6598 Zones . . . . . . . . . . . . . . . . . . . . . 2
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
4. Security Considerations . . . . . . . . . . . . . . . . . . . 5 4. Security Considerations . . . . . . . . . . . . . . . . . . . 5
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 5 5. Normative References . . . . . . . . . . . . . . . . . . . . 5
6. Normative References . . . . . . . . . . . . . . . . . . . . 5 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction 1. Introduction
[RFC6598] specified that: "Reverse DNS queries for Shared Address [RFC6598] specifies that "Reverse DNS queries for Shared Address
Space addresses [100.64.0.0/10] MUST NOT be forwarded to the global Space addresses [100.64.0.0/10] MUST NOT be forwarded to the global
DNS infrastructure." [RFC6303] provides guidance on handling such DNS infrastructure." [RFC6303] provides guidance on handling such
queries. queries.
This document directs the IANA to add the IPv4 reverse zones This document directs the IANA to add the IPv4 reverse zones
corresponding to 100.64.0.0/10, a netblock reserved in [RFC6598], to corresponding to 100.64.0.0/10, a netblock reserved in [RFC6598], to
the IPv4 Locally-Served DNS Zone Registry established in [RFC6303]. the "IPv4 Locally-Served DNS Zone Registry" established in [RFC6303].
Unlike [RFC1918] address, which are not expected to be seen by other Unlike the addresses described in [RFC1918], which are not expected
parties, the addresses from [RFC6598] are expected to be seen by to be seen by other parties, the addresses defined by [RFC6598] are
parties other than those deploying the addresses, so it is more expected to be seen by parties other than those deploying the
crucial that recursive nameservers default to serving these zones addresses. Therefore, it is more crucial that recursive nameservers
locally. default to serving these zones locally.
2. Changes to IPv4 Locally-Served DNS Zones Registry 2. Changes to the IPv4 Locally-Served DNS Zones Registry
To add the following zone listed in RFC6598 Zones (Section 2.1) to IANA has added the zones listed in "RFC 6598 Zones" (Section 2.1) to
the "IPv4 Locally-Served DNS Zone Registry". the "IPv4 Locally-Served DNS Zone Registry".
2.1. RFC6598 Zones 2.1. RFC 6598 Zones
64.100.IN-ADDR.ARPA 64.100.IN-ADDR.ARPA
65.100.IN-ADDR.ARPA 65.100.IN-ADDR.ARPA
66.100.IN-ADDR.ARPA 66.100.IN-ADDR.ARPA
67.100.IN-ADDR.ARPA 67.100.IN-ADDR.ARPA
68.100.IN-ADDR.ARPA 68.100.IN-ADDR.ARPA
skipping to change at page 5, line 28 skipping to change at page 5, line 24
124.100.IN-ADDR.ARPA 124.100.IN-ADDR.ARPA
125.100.IN-ADDR.ARPA 125.100.IN-ADDR.ARPA
126.100.IN-ADDR.ARPA 126.100.IN-ADDR.ARPA
127.100.IN-ADDR.ARPA 127.100.IN-ADDR.ARPA
3. IANA Considerations 3. IANA Considerations
This document directs IANA to add the zones listed in RFC6598 Zones Per this document, IANA has added the zones listed in "RFC 6598
(Section 2.1) to the "IPv4 Locally-Served DNS Zone Registry". Zones" (Section 2.1) to the "IPv4 Locally-Served DNS Zone Registry".
IANA is reminded that an insecure delegation for these zones is IANA is reminded that an insecure delegation for these zones is
required for compliance with [RFC6598] to break the DNSSEC chain of required for compliance with [RFC6303] to break the DNSSEC chain of
trust. trust.
4. Security Considerations 4. Security Considerations
This document is thought to present no additional security risks to This document does not present additional security risks to the
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 5. Normative References
[RFC1918] Rekhter, Y., Moskowitz, B., Karrenberg, D., de Groot, G., [RFC1918] Rekhter, Y., Moskowitz, B., Karrenberg, D., de Groot, G.,
and E. Lear, "Address Allocation for Private Internets", and E. Lear, "Address Allocation for Private Internets",
BCP 5, RFC 1918, DOI 10.17487/RFC1918, February 1996, BCP 5, RFC 1918, DOI 10.17487/RFC1918, February 1996,
<http://www.rfc-editor.org/info/rfc1918>. <http://www.rfc-editor.org/info/rfc1918>.
[RFC6303] Andrews, M., "Locally Served DNS Zones", BCP 163, RFC [RFC6303] Andrews, M., "Locally Served DNS Zones", BCP 163,
6303, DOI 10.17487/RFC6303, July 2011, RFC 6303, DOI 10.17487/RFC6303, July 2011,
<http://www.rfc-editor.org/info/rfc6303>. <http://www.rfc-editor.org/info/rfc6303>.
[RFC6598] Weil, J., Kuarsingh, V., Donley, C., Liljenstolpe, C., and [RFC6598] Weil, J., Kuarsingh, V., Donley, C., Liljenstolpe, C., and
M. Azinger, "IANA-Reserved IPv4 Prefix for Shared Address M. Azinger, "IANA-Reserved IPv4 Prefix for Shared Address
Space", BCP 153, RFC 6598, DOI 10.17487/RFC6598, April Space", BCP 153, RFC 6598, DOI 10.17487/RFC6598, April
2012, <http://www.rfc-editor.org/info/rfc6598>. 2012, <http://www.rfc-editor.org/info/rfc6598>.
Acknowledgements
The author would like to thank Joe Abley for his review comments.
Author's Address Author's Address
M. Andrews M. Andrews
Internet Systems Consortium Internet Systems Consortium
950 Charter Street 950 Charter Street
Redwood City, CA 94063 Redwood City, CA 94063
US United States
Email: marka@isc.org Email: marka@isc.org
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