DHCPv6 Active Leasequery
RFC 7653
| Document | Type |
RFC - Proposed Standard
(October 2015; No errata)
Updates RFC 5460
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-raghuvanshi-dhc-dhcpv6-active-leasequery | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Sheng Jiang | ||
| Shepherd write-up | Show (last changed 2015-07-07) | ||
| IESG | IESG state | RFC 7653 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Brian Haberman | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) D. Raghuvanshi
Request for Comments: 7653 K. Kinnear
Updates: 5460 D. Kukrety
Category: Standards Track Cisco Systems, Inc.
ISSN: 2070-1721 October 2015
DHCPv6 Active Leasequery
Abstract
The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) has been
extended with a Leasequery capability that allows a requestor to
request information about DHCPv6 bindings. That mechanism is limited
to queries for DHCPv6 binding data updates prior to the time the
DHCPv6 server receives the Leasequery request. Continuous update of
an external requestor with Leasequery data is sometimes desired.
This document expands on the DHCPv6 Leasequery protocol and allows
for active transfer of real-time DHCPv6 binding information data via
TCP. This document also updates DHCPv6 Bulk Leasequery (RFC 5460) by
adding new options.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7653.
Raghuvanshi, et al. Standards Track [Page 1]
RFC 7653 DHCPv6 Active Leasequery October 2015
Copyright Notice
Copyright (c) 2015 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
(http://trustee.ietf.org/license-info) in effect on the date of
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
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.
Raghuvanshi, et al. Standards Track [Page 2]
RFC 7653 DHCPv6 Active Leasequery October 2015
Table of Contents
1. Introduction ....................................................4
2. Terminology .....................................................4
3. Protocol Overview ...............................................6
4. Interaction between Active Leasequery and Bulk Leasequery .......8
5. Extension to DHCPv6 Bulk Leasequery .............................8
6. Message and Option Definitions ..................................9
6.1. Message Framing for TCP ....................................9
6.2. Messages ...................................................9
6.2.1. ACTIVELEASEQUERY ....................................9
6.2.2. STARTTLS ...........................................10
6.2.3. Response Messages ..................................10
6.3. Options ...................................................10
6.3.1. OPTION_LQ_BASE_TIME ................................10
6.3.2. OPTION_LQ_START_TIME ...............................11
6.3.3. OPTION_LQ_END_TIME .................................12
6.4. Connection and Transmission Parameters ....................12
7. Information Communicated by Active Leasequery ..................13
8. Requestor Behavior .............................................14
8.1. General Processing ........................................14
8.2. Initiating a Connection ...................................14
8.3. Forming an Active Leasequery ..............................15
8.4. Processing Active Replies .................................16
8.4.1. Processing Replies from a Request Containing an
OPTION_LQ_START_TIME ...............................18
8.5. Processing Time Values in Leasequery Messages .............20
8.6. Examples ..................................................21
8.6.1. Query Failure ......................................21
8.6.2. Data Missing on Server .............................21
8.6.3. Successful Query ...................................21
8.7. Closing Connections .......................................22
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