draft-ietf-dnsop-as112-dname-03.txt   draft-ietf-dnsop-as112-dname-04.txt 
Network Working Group J. Abley Network Working Group J. Abley
Internet-Draft Dyn, Inc. Internet-Draft Dyn, Inc.
Intended status: Informational B. Dickson Intended status: Informational B. Dickson
Expires: September 20, 2014 Verisign Labs Expires: December 29, 2014 Verisign Labs
W. Kumari W. Kumari
Google Google
G. Michaelson G. Michaelson
APNIC APNIC
March 19, 2014 June 27, 2014
AS112 Redirection using DNAME AS112 Redirection using DNAME
draft-ietf-dnsop-as112-dname-03 draft-ietf-dnsop-as112-dname-04
Abstract Abstract
Many sites connected to the Internet make use of IPv4 addresses that Many sites connected to the Internet make use of IPv4 addresses that
are not globally unique. Examples are the addresses designated in are not globally unique. Examples are the addresses designated in
RFC 1918 for private use within individual sites. RFC 1918 for private use within individual sites.
Devices in such environments may occasionally originate Domain Name Devices in such environments may occasionally originate Domain Name
System (DNS) queries (so-called "reverse lookups") corresponding to System (DNS) queries (so-called "reverse lookups") corresponding to
those private-use addresses. Since the addresses concerned have only those private-use addresses. Since the addresses concerned have only
skipping to change at page 2, line 15 skipping to change at page 2, line 15
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 20, 2014. This Internet-Draft will expire on December 29, 2014.
Copyright Notice Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 6, line 43 skipping to change at page 6, line 43
in the DNS namespace for queries that are intended to be answered by in the DNS namespace for queries that are intended to be answered by
the AS112 infrastructure. the AS112 infrastructure.
For example, reverse queries corresponding to TEST-NET-1 For example, reverse queries corresponding to TEST-NET-1
(192.0.2.0/24) [RFC5737] could be redirected to AS112 nameservers by (192.0.2.0/24) [RFC5737] could be redirected to AS112 nameservers by
installing a DNAME resource record in the 192.IN-ADDR.ARPA zone, as installing a DNAME resource record in the 192.IN-ADDR.ARPA zone, as
illustrated in Figure 1. illustrated in Figure 1.
$ORIGIN 192.IN-ADDR.ARPA. $ORIGIN 192.IN-ADDR.ARPA.
... ...
2.0.IN-ADDR.ARPA. IN DNAME EMPTY.AS112.ARPA. 2.0 IN DNAME EMPTY.AS112.ARPA.
... ...
Figure 1 Figure 1
There is no practical limit to the number of redirections that can be There is no practical limit to the number of redirections that can be
configured in this fashion. Redirection of a particular part of the configured in this fashion. Redirection of a particular part of the
namespace to EMPTY.AS112.ARPA can be removed at any time, under the namespace to EMPTY.AS112.ARPA can be removed at any time, under the
control of the administrators of the corresponding part of the DNS control of the administrators of the corresponding part of the DNS
namespace. No changes to deployed AS112 nodes incorporating the namespace. No changes to deployed AS112 nodes incorporating the
extensions described in this document are required to support extensions described in this document are required to support
skipping to change at page 16, line 7 skipping to change at page 16, line 7
9. Security Considerations 9. Security Considerations
This document presents no known additional security concerns to the This document presents no known additional security concerns to the
Internet. Internet.
For security considerations relating to AS112 service in general, see For security considerations relating to AS112 service in general, see
[RFC6304bis]. [RFC6304bis].
10. Acknowledgements 10. Acknowledgements
Your name here, etc. The authors acknowledge the valuable contributions of Bob Harold and
other participants in the DNSOP working group in the preparation of
this document.
11. References 11. References
11.1. Normative References 11.1. Normative References
[RFC1035] Mockapetris, P., "Domain names - implementation and [RFC1035] Mockapetris, P., "Domain names - implementation and
specification", STD 13, RFC 1035, November 1987. specification", STD 13, RFC 1035, November 1987.
[RFC2308] Andrews, M., "Negative Caching of DNS Queries (DNS [RFC2308] Andrews, M., "Negative Caching of DNS Queries (DNS
NCACHE)", RFC 2308, March 1998. NCACHE)", RFC 2308, March 1998.
skipping to change at page 22, line 5 skipping to change at page 21, line 33
01 Minor updates following submission of 01 Minor updates following submission of
draft-jabley-dnsop-rfc6304bis. draft-jabley-dnsop-rfc6304bis.
02 Text in IANA Considerations section dealing with address 02 Text in IANA Considerations section dealing with address
assignments modified following informal advice received from Leo assignments modified following informal advice received from Leo
Vegoda. Vegoda.
03 Updated references to 6304 following guidance from working group 03 Updated references to 6304 following guidance from working group
chairs. chairs.
04 Corrected an error picked up by Bob Harold.
Authors' Addresses Authors' Addresses
Joe Abley Joe Abley
Dyn, Inc. Dyn, Inc.
470 Moore Street 470 Moore Street
London, ON N6C 2C2 London, ON N6C 2C2
Canada Canada
Phone: +1 519 670 9327 Phone: +1 519 670 9327
Email: jabley@dyn.com Email: jabley@dyn.com
 End of changes. 7 change blocks. 
6 lines changed or deleted 10 lines changed or added

This html diff was produced by rfcdiff 1.41. The latest version is available from http://tools.ietf.org/tools/rfcdiff/