Adding 100.64.0.0/10 Prefixes to the IPv4 Locally-Served DNS Zones Registry
RFC 7793
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Type |
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RFC - Best Current Practice
(May 2016; No errata)
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Last updated |
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2016-05-12
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Replaces |
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draft-andrews-dnsop-rfc6598-rfc6303
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Suzanne Woolf
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Shepherd write-up |
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Show
(last changed 2015-11-27)
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IESG state |
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RFC 7793 (Best Current Practice)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Joel Jaeggli
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Send notices to |
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(None)
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| IANA |
IANA review state |
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IANA OK - Actions Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) M. Andrews
Request for Comments: 7793 ISC
BCP: 163 May 2016
Category: Best Current Practice
ISSN: 2070-1721
Adding 100.64.0.0/10 Prefixes to the
IPv4 Locally-Served DNS Zones Registry
Abstract
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
from accidentally leaking to the global DNS infrastructure.
Status of This Memo
This memo documents an Internet Best Current Practice.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
BCPs is available in Section 2 of RFC 5741.
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 (c) 2016 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
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Andrews Best Current Practice [Page 1]
RFC 7793 IPv4 Locally-Served DNS Zones Additions May 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Changes to the IPv4 Locally-Served DNS Zones Registry . . . . 2
2.1. RFC 6598 Zones . . . . . . . . . . . . . . . . . . . . . 2
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
4. Security Considerations . . . . . . . . . . . . . . . . . . . 5
5. Normative References . . . . . . . . . . . . . . . . . . . . 5
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
[RFC6598] 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 Locally-Served DNS Zone Registry" established in [RFC6303].
Unlike the addresses described in [RFC1918], which are not expected
to be seen by other parties, the addresses defined by [RFC6598] are
expected to be seen by parties other than those deploying the
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
IANA has added the zones listed in "RFC 6598 Zones" (Section 2.1) to
the "IPv4 Locally-Served DNS Zone Registry".
2.1. 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
Andrews Best Current Practice [Page 2]
RFC 7793 IPv4 Locally-Served DNS Zones Additions May 2016
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
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