One document matched: draft-ietf-radext-delegated-prefix-00.txt
Network Working Group J. Salowey
Internet-Draft R. Droms
Intended status: Standards Track Cisco Systems, Inc.
Expires: August 29, 2006 February 25, 2006
RADIUS Delegated-IPv6-Prefix Attribute
draft-ietf-radext-delegated-prefix-00.txt
Status of this Memo
By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
Drafts.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
This Internet-Draft will expire on August 29, 2006.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
The Delegated-IPv6-Prefix attribute indicates an IPv6 prefix that is
to be delegated to the user.
1. Introduction
The Delegated-IPv6-Prefix indicates an IPv6 prefix to be delegated to
the user. For example, the prefix in a Delegated-IPv6-Prefix
Salowey & Droms Expires August 29, 2006 [Page 1]
Internet-Draft Delegated-IPv6-Prefix Attribute February 2006
attribute can be delegated to another node through DHCP Prefix
Delegation [2].
The Delegated-IPv6-Prefix MAY be used in Access-Accept packets, and
can appear multiple times. It MAY be used in an Access-Request
packet as a hint by the NAS to the server that it would prefer these
prefix(es), but the server is not required to honor the hint.
2. Terminology
The key words MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL in this document are to be
interpreted as described in RFC 2119 [3].
3. Attribute format
The format of the Delegated-IPv6-Prefix is:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Reserved | Prefix-Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Prefix
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Prefix
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Prefix
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Prefix |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type
TBD for Delegated-IPv6-Prefix
Length
At least 4 and no larger than 20
Reserved
Always set to zero
Salowey & Droms Expires August 29, 2006 [Page 2]
Internet-Draft Delegated-IPv6-Prefix Attribute February 2006
Prefix-Length
The length of the prefix, in bits. At least 0 and no larger
than 128
Note that the prefix field is only required to be long enough to hold
the prefix bits and can be shorter than 16 bytes. Any bits in the
prefix field that are not part of the prefix MUST be zero.
The definition of the Delegated-IPv6-Prefix Attribute is based on the
Framed-IPv6-Prefix attribute.
The following table describes which messages the Delegated-IPv6-
Prefix attribute can appear in and in what quantity.
Request Accept Challenge Reject Accounting # Attribute
Request
0+ 0+ 0 0 0+ TBD Delegated-IPv6-Prefix
In this table 0 indicates that an attribute MUST NOT be present in
the packet and 0+ means that zero or more instances of this attribute
MAY be present in packet.
4. IANA Considerations
IANA is requested to assign a Type value, TBD, for this attribute
from the RADIUS Types registry.
5. Security Considerations
Known security vulnerabilities of the RADIUS protocol are discussed
in RFC 2607 [4], RFC 2865 [5] and RFC 2869 [6]. Use of IP SEC [7]
for providing security when RADIUS is carried in IPv6 is discussed in
RFC 3162 [1].
6. Normative References
[1] Aboba, B., Zorn, G., and D. Mitton, "RADIUS and IPv6", RFC 3162,
August 2001.
[2] Troan, O. and R. Droms, "IPv6 Prefix Options for Dynamic Host
Configuration Protocol (DHCP) version 6", RFC 3633,
December 2003.
[3] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Salowey & Droms Expires August 29, 2006 [Page 3]
Internet-Draft Delegated-IPv6-Prefix Attribute February 2006
Levels", BCP 14, RFC 2119, March 1997.
[4] Aboba, B. and J. Vollbrecht, "Proxy Chaining and Policy
Implementation in Roaming", RFC 2607, June 1999.
[5] Rigney, C., Willens, S., Rubens, A., and W. Simpson, "Remote
Authentication Dial In User Service (RADIUS)", RFC 2865,
June 2000.
[6] Rigney, C., Willats, W., and P. Calhoun, "RADIUS Extensions",
RFC 2869, June 2000.
[7] Kent, S. and R. Atkinson, "Security Architecture for the
Internet Protocol", RFC 2401, November 1998.
Authors' Addresses
Joe Salowey
Cisco Systems, Inc.
2901 Third Avenue
Seattle, WA 98121
USA
Phone: +1 206.310.0596
Email: jsalowey@cisco.com
Ralph Droms
Cisco Systems, Inc.
1414 Massachusetts Avenue
Boxborough, MA 01719
USA
Phone: +1 978.936.1674
Email: rdroms@cisco.com
Salowey & Droms Expires August 29, 2006 [Page 4]
Internet-Draft Delegated-IPv6-Prefix Attribute February 2006
Full Copyright Statement
Copyright (C) The Internet Society (2006).
This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Intellectual Property
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.
Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.
Acknowledgment
Funding for the RFC Editor function is provided by the IETF
Administrative Support Activity (IASA).
Salowey & Droms Expires August 29, 2006 [Page 5]
| PAFTECH AB 2003-2026 | 2026-04-24 01:46:27 |