IPv6 ND PIO Flags IANA considerations
draft-ietf-6man-ndpioiana-00
The information below is for an old version of the document.
| Document | Type | Active Internet-Draft (6man WG) | |
|---|---|---|---|
| Author | Ole Trøan | ||
| Last updated | 2018-01-09 (Latest revision 2017-12-06) | ||
| Replaces | draft-troan-6man-ndpioiana | ||
| Stream | Internet Engineering Task Force (IETF) | ||
| Formats | plain text xml htmlized pdfized bibtex | ||
| Reviews |
GENART Telechat review
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-02)
Almost Ready
OPSDIR Telechat review
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||
| Stream | WG state | WG Consensus: Waiting for Write-Up | |
| Document shepherd | Bob Hinden | ||
| IESG | IESG state | I-D Exists | |
| Consensus boilerplate | Yes | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | Robert Hinden <bob.hinden@gmail.com> |
draft-ietf-6man-ndpioiana-00
Network Working Group O. Troean
Internet-Draft Cisco Systems
Updates: rfc4861 (if approved) December 5, 2017
Intended status: Standards Track
Expires: June 8, 2018
IPv6 ND PIO Flags IANA considerations
draft-ietf-6man-ndpioiana-00
Abstract
The Prefix Information Option in the IPv6 Neighbor Discovery Router
Advertisement defines an 8-bit flag field with two flags defined and
the remaining 6 bits reservered (Reserved1). RFC 6275 has defined a
new flag from this field without creating a IANA registry or updating
RFC 4861. The purpose of this document is to request that IANA to
create a new registry for the PIO flags to avoid potential conflict
in the use of these flags. This document updates RFC 4861.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 8, 2018.
Copyright Notice
Copyright (c) 2017 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
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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
Troean Expires June 8, 2018 [Page 1]
Internet-Draft December 2017
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.
1. Introduction
The Prefix Information Option in the IPv6 Neighbor Discovery Router
Advertisement defines an 8-bit flag field with two flags defined and
the remaining 6 bits reservered (Reserved1). RFC 6275 has defined a
new flag from this field without creating a IANA registry or updating
RFC 4861. The purpose of this document is to request that IANA to
create a new registry for the PIO flags to avoid potential conflict
in the use of these flags.
2. Current Prefix Information Option flags
Currently, the NDP Prefix Information Option contains the following
one-bit flags defined in published RFCs:
0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+
|L|A|R|Reserved1|
+-+-+-+-+-+-+-+-+
Figure 1
L - On-link Flag [RFC4861]
A - Autonomous Address Configuration Flag [RFC4861]
R - Router Address Agent Flag [RFC6275]
Reserved1 - Reserved
3. Updates to RFC4861
This document updates RFC4861 with the new IANA Considerations
section specified below.
4. IANA Considerations
The IANA is requested to create a new registry for IPv6 ND Prefix
Information Option flags. This should include the current flags in
the PIO option. The format for the registry is:
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Internet-Draft December 2017
+---------------+---------------------------------+-----------+
| RA Option Bit | Description | Reference |
+---------------+---------------------------------+-----------+
| 0 | L - On-link Flag | [RFC4861] |
| 1 | A - Autonomous Address | [RFC4861] |
| | Configuration Flag | |
| 2 | R - Router Address Flag | [RFC6275] |
+---------------+---------------------------------+-----------+
Figure 2
The assignment of new flags in the PIO option header require
standards action.
The registry for these flags should be added to:
http://www.iana.org/assignments/icmpv6-parameters
5. References
5.1. Normative References
[RFC4861] Narten, T., Nordmark, E., Simpson, W., and H. Soliman,
"Neighbor Discovery for IP version 6 (IPv6)", RFC 4861,
DOI 10.17487/RFC4861, September 2007,
<https://www.rfc-editor.org/info/rfc4861>.
5.2. Informative References
[RFC6275] Perkins, C., Ed., Johnson, D., and J. Arkko, "Mobility
Support in IPv6", RFC 6275, DOI 10.17487/RFC6275, July
2011, <https://www.rfc-editor.org/info/rfc6275>.
Author's Address
Ole Troean
Cisco Systems
Philip Pedersens vei 1
Lysaker 1366
Norway
Email: ot@cisco.com
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