draft-ietf-6man-addr-select-opt-07.txt   draft-ietf-6man-addr-select-opt-08.txt 
6man Working Group A. Matsumoto 6man Working Group A. Matsumoto
Internet-Draft T. Fujisaki Internet-Draft T. Fujisaki
Intended status: Standards Track NTT Intended status: Standards Track NTT
Expires: May 18, 2013 T. Chown Expires: July 20, 2013 T. Chown
University of Southampton University of Southampton
November 14, 2012 January 16, 2013
Distributing Address Selection Policy using DHCPv6 Distributing Address Selection Policy using DHCPv6
draft-ietf-6man-addr-select-opt-07.txt draft-ietf-6man-addr-select-opt-08.txt
Abstract Abstract
RFC 6724 defines default address selection mechanisms for IPv6 that RFC 6724 defines default address selection mechanisms for IPv6 that
allow nodes to select appropriate address when faced with multiple allow nodes to select an appropriate address when faced with multiple
source and/or destination addresses to choose between. The RFC 6724 source and/or destination addresses to choose between. The RFC 6724
allowed for the future definition of methods to administratively allowed for the future definition of methods to administratively
configure the address selection policy information. This document configure the address selection policy information. This document
defines a new DHCPv6 option for such configuration, allowing a site defines a new DHCPv6 option for such configuration, allowing a site
administrator to distribute address selection policy overriding the administrator to distribute address selection policy overriding the
default address selection parameters and policy table, and thus default address selection parameters and policy table, and thus
control the address selection behavior of nodes in their site. control the address selection behavior of nodes in their site.
Status of this Memo Status of this Memo
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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-
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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 May 18, 2013. This Internet-Draft will expire on July 20, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2013 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
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to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
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+-+-+-+-+-+-+-+-+ POLICY TABLE OPTIONS | +-+-+-+-+-+-+-+-+ POLICY TABLE OPTIONS |
| (variable length) | | (variable length) |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 1: Address Selection option format Figure 1: Address Selection option format
option-code: OPTION_ADDRSEL (TBD). option-code: OPTION_ADDRSEL (TBD).
option-len: The total length of the Reserved field, A, P flags, and option-len: The total length of the Reserved field, A, P flags, and
POLICY TABLE OPITONS in octets. POLICY TABLE OPTIONS in octets.
Reserved: Reserved field. Server MUST set this value to zero and Reserved: Reserved field. Server MUST set this value to zero and
client MUST ignore its content. client MUST ignore its content.
A: Automatic Row Addition flag. This flag toggles the Automatic A: Automatic Row Addition flag. This flag toggles the Automatic
Row Addition flag at client hosts, which is described in the Row Addition flag at client hosts, which is described in the
section 2.1 in RFC 6724 [RFC6724]. If this flag is set to 1, it section 2.1 in RFC 6724 [RFC6724]. If this flag is set to 1, it
does not change client host behavior, that is, a client MAY does not change client host behavior, that is, a client MAY
automatically add additional site-specific rows to the policy automatically add additional site-specific rows to the policy
table. If set to 0, the Automatic Row Addition flag is table. If set to 0, the Automatic Row Addition flag is
 End of changes. 7 change blocks. 
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