draft-ietf-mboned-mcast-arpa-00.txt   draft-ietf-mboned-mcast-arpa-01.txt 
Network Working Group P. Koch Network Working Group P. Koch
Internet-Draft DENIC eG Internet-Draft DENIC eG
Expires: August 30, 2007 February 26, 2007 Intended status: Best Current July 9, 2007
Practice
Expires: January 10, 2008
Moving MCAST.NET into the ARPA infrastructure top level domain Moving MCAST.NET into the ARPA infrastructure top level domain
draft-ietf-mboned-mcast-arpa-00 draft-ietf-mboned-mcast-arpa-01
Status of this Memo Status of this Memo
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This Internet-Draft will expire on August 30, 2007. This Internet-Draft will expire on January 10, 2008.
Copyright Notice Copyright Notice
Copyright (C) The IETF Trust (2007). Copyright (C) The IETF Trust (2007).
Abstract Abstract
This document proposes to migrate the MCAST.NET domain into the ARPA This document proposes to migrate the MCAST.NET domain into the ARPA
top level domain that is dedicated to infrastructure support. It top level domain that is dedicated to infrastructure support. It
also provides for a maintenance policy and covers migration issues also provides for a maintenance policy and covers migration issues
and caveats. and caveats. This document updates RFC 3171.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . 3
1.1. The ARPA top level domain . . . . . . . . . . . . . . . 3 1.1. The ARPA top level domain . . . . . . . . . . . . . . . 3
2. Current Use . . . . . . . . . . . . . . . . . . . . . . 3 2. Current Use . . . . . . . . . . . . . . . . . . . . . . 3
3. Registration Policy . . . . . . . . . . . . . . . . . . 3 3. Registration Policy . . . . . . . . . . . . . . . . . . 3
3.1. Names and Addresses eligible for Registration in 3.1. Names and Addresses eligible for Registration in
MCAST.ARPA . . . . . . . . . . . . . . . . . . . . . . 3 MCAST.ARPA . . . . . . . . . . . . . . . . . . . . . . 3
3.2. Subdomains of MCAST.ARPA . . . . . . . . . . . . . . . 4 3.2. Subdomains of MCAST.ARPA . . . . . . . . . . . . . . . 4
3.3. Corresponding Reverse Mapping . . . . . . . . . . . . . 4
4. Migration Issues . . . . . . . . . . . . . . . . . . . 4 4. Migration Issues . . . . . . . . . . . . . . . . . . . 4
4.1. Migration Strategies . . . . . . . . . . . . . . . . . 4 4.1. Migration Strategies . . . . . . . . . . . . . . . . . 4
4.1.1. Freeze . . . . . . . . . . . . . . . . . . . . . . . . 4 4.1.1. Freeze . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1.2. Phase Out . . . . . . . . . . . . . . . . . . . . . . . 4 4.1.2. Phase Out . . . . . . . . . . . . . . . . . . . . . . . 5
4.1.3. Continue . . . . . . . . . . . . . . . . . . . . . . . 4 4.1.3. Continue . . . . . . . . . . . . . . . . . . . . . . . 5
5. Security Considerations . . . . . . . . . . . . . . . . 4 5. Security Considerations . . . . . . . . . . . . . . . . 5
6. IANA Considerations . . . . . . . . . . . . . . . . . . 5 6. IANA Considerations . . . . . . . . . . . . . . . . . . 5
7. Acknowledgements . . . . . . . . . . . . . . . . . . . 5 7. Acknowledgements . . . . . . . . . . . . . . . . . . . 5
8. References . . . . . . . . . . . . . . . . . . . . . . 5 8. References . . . . . . . . . . . . . . . . . . . . . . 5
8.1. Normative References . . . . . . . . . . . . . . . . . 5 8.1. Normative References . . . . . . . . . . . . . . . . . 5
8.2. Informative References . . . . . . . . . . . . . . . . 5 8.2. Informative References . . . . . . . . . . . . . . . . 6
Appendix A. Document Revision History . . . . . . . . . . . . . . . 6 Appendix A. Document Revision History . . . . . . . . . . . . . . . 6
A.1. Initial Document . . . . . . . . . . . . . . . . . . . 6 A.1. Changes from -00 to -01 . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . 6 A.2. Initial Document . . . . . . . . . . . . . . . . . . . 7
Intellectual Property and Copyright Statements . . . . 7 Author's Address . . . . . . . . . . . . . . . . . . . 7
Intellectual Property and Copyright Statements . . . . 8
1. Introduction 1. Introduction
This document describes a maintenance policy and migration strategy This document describes a maintenance policy and migration strategy
for the MCAST.NET (MCAST.ARPA) domain that contains names for a for the MCAST.NET (MCAST.ARPA) domain that contains names for a
subset of the multicast groups assigned by the IANA. subset of the multicast groups assigned by the IANA.
Comments should be sent to the mboned working group. Comments should be sent to the mboned working group.
1.1. The ARPA top level domain 1.1. The ARPA top level domain
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Names within MCAST.ARPA will consist of one additional label and will Names within MCAST.ARPA will consist of one additional label and will
adhere to the hostname syntax requirements of [RFC1123]. These names adhere to the hostname syntax requirements of [RFC1123]. These names
will own a single A RR, a single AAAA RR, or both. Addresses will be will own a single A RR, a single AAAA RR, or both. Addresses will be
in the IPv4 or IPv6 multicast address space. in the IPv4 or IPv6 multicast address space.
3.1. Names and Addresses eligible for Registration in MCAST.ARPA 3.1. Names and Addresses eligible for Registration in MCAST.ARPA
Only IANA multicast address registrations are eligible for being Only IANA multicast address registrations are eligible for being
listed in MCAST.ARPA. listed in MCAST.ARPA.
For IPv4, only multicast groups from 224.0.0/24 (Local Network
Control Block) and 224.0.1/24 (Internetwork Control Block) will have
names assigned.
3.2. Subdomains of MCAST.ARPA 3.2. Subdomains of MCAST.ARPA
There might be subdomains below MCAST.ARPA that serve special The namespace under MCAST.ARPA is considered flat, i.e., all direct
purposes. descendants of MCAST.ARPA are leaves in the DNS tree. Future
extensions might want to define subdomains that serve special
purposes. Any such designation needs IETF consensus [RFC2434].
3.3. Corresponding Reverse Mapping
The DNS Reverse Mapping for those multicast groups that appear as
addresses in MCAST.ARPA is to be kept consistent with the forward
namespace. A single DNS PTR record will be entered at the
corresponding owner within the 224.IN-ADDR.ARPA domain that points to
the multicast group name name within MCAST.ARPA.
The zones 225.IN-ADDR.ARPA through 239.IN-ADDR.ARPA will be delegated
but shall remain empty (except necessary infrastructure RRs).
[How to deal with IPv6 multicast reverse mapping is TBD.]
4. Migration Issues 4. Migration Issues
The current content of the MCAST.NET zone shall be brought in line The current content of the MCAST.NET zone shall be brought in line
with the multicast address registry. with the multicast address registry.
Since legacy systems may use MCAST.NET for quite some time, there Since legacy systems may use MCAST.NET for quite some time, there
needs to be a mapping/forwarding solution to answer those queries in needs to be a mapping/forwarding solution to answer those queries in
a useful manner without discouraging migration. a useful manner without discouraging migration.
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There is no Security Problem associated with the migration itself. There is no Security Problem associated with the migration itself.
MCAST.ARPA. should be signed with DNSSEC as soon as the ARPA zone is MCAST.ARPA. should be signed with DNSSEC as soon as the ARPA zone is
signed. signed.
{This section needs more work.} {This section needs more work.}
6. IANA Considerations 6. IANA Considerations
This document makes a recommendation to IANA. This document amends [RFC3171] to add a mandatory entry in the
MCAST.ARPA domain and a corresponding reverse mapping entry. The
{This section needs more work.} officially registered multicast group name is made subject to DNS
hostname syntax rules.
7. Acknowledgements 7. Acknowledgements
The author would like to thank David Conrad for his input. The author would like to thank David Conrad for his input.
8. References 8. References
8.1. Normative References 8.1. Normative References
[RFC1034] Mockapetris, P., "Domain names - concepts and facilities", [RFC1034] Mockapetris, P., "Domain names - concepts and facilities",
STD 13, RFC 1034, November 1987. STD 13, RFC 1034, November 1987.
[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.
[RFC1123] Braden, R., "Requirements for Internet Hosts - Application [RFC1123] Braden, R., "Requirements for Internet Hosts - Application
and Support", STD 3, RFC 1123, October 1989. and Support", STD 3, RFC 1123, October 1989.
[RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.
[RFC3171] Albanna, Z., Almeroth, K., Meyer, D., and M. Schipper, [RFC3171] Albanna, Z., Almeroth, K., Meyer, D., and M. Schipper,
"IANA Guidelines for IPv4 Multicast Address Assignments", "IANA Guidelines for IPv4 Multicast Address Assignments",
BCP 51, RFC 3171, August 2001. BCP 51, RFC 3171, August 2001.
[RFC3172] Huston, G., "Management Guidelines & Operational [RFC3172] Huston, G., "Management Guidelines & Operational
Requirements for the Address and Routing Parameter Area Requirements for the Address and Routing Parameter Area
Domain ("arpa")", BCP 52, RFC 3172, September 2001. Domain ("arpa")", BCP 52, RFC 3172, September 2001.
8.2. Informative References 8.2. Informative References
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June 2002. June 2002.
[RFC3678] Thaler, D., Fenner, B., and B. Quinn, "Socket Interface [RFC3678] Thaler, D., Fenner, B., and B. Quinn, "Socket Interface
Extensions for Multicast Source Filters", RFC 3678, Extensions for Multicast Source Filters", RFC 3678,
January 2004. January 2004.
Appendix A. Document Revision History Appendix A. Document Revision History
This section is to be removed should the draft be published. This section is to be removed should the draft be published.
A.1. Initial Document A.1. Changes from -00 to -01
Added text about DNS reverse mapping. Eligibility for an MCAST.ARPA
name now restricted to 224.0.0/24 and 224.0.1/24. Stronger
requirement for MCAST.ARPA subdomains.
A.2. Initial Document
First draft, taking over with only little changes from First draft, taking over with only little changes from
draft-koch-mboned-mcast-arpa-00.txt draft-koch-mboned-mcast-arpa-00.txt
Author's Address Author's Address
Peter Koch Peter Koch
DENIC eG DENIC eG
Wiesenhuettenplatz 26 Wiesenhuettenplatz 26
Frankfurt 60329 Frankfurt 60329
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