DHCPv4 Bulk Leasequery
RFC 6926
Document | Type |
RFC - Proposed Standard
(April 2013; No errata)
Updated by RFC 7724
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Authors | D.T.V. Rao , Pavan Kurapati , Bernie Volz , Kim Kinnear , Mark Stapp , Bharat Joshi , Neil Russell | ||
Last updated | 2015-10-14 | ||
Replaces | draft-dtv-dhc-dhcpv4-bulk-leasequery, draft-kinnear-dhc-dhcpv4-bulk-leasequery | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6926 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ralph Droms | ||
IESG note | Ted Lemon (ted.lemon@nominum.com) is the document shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) K. Kinnear Request for Comments: 6926 M. Stapp Category: Standards Track Cisco Systems, Inc. ISSN: 2070-1721 R. Desetti B. Joshi Infosys Ltd. N. Russell Sea Street Technologies Inc. P. Kurapati Juniper Networks B. Volz Cisco Systems, Inc. April 2013 DHCPv4 Bulk Leasequery Abstract The Dynamic Host Configuration Protocol for IPv4 (DHCPv4) Leasequery protocol allows a requestor to request information about DHCPv4 bindings. This protocol is limited to queries for individual bindings. In some situations, individual binding queries may not be efficient or even possible. This document extends the DHCPv4 Leasequery protocol to allow for bulk transfer of DHCPv4 address binding data via TCP. 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/rfc6926. Kinnear, et al. Standards Track [Page 1] RFC 6926 DHCPv4 Bulk Leasequery April 2013 Copyright Notice Copyright (c) 2013 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. Kinnear, et al. Standards Track [Page 2] RFC 6926 DHCPv4 Bulk Leasequery April 2013 Table of Contents 1. Introduction ....................................................4 2. Terminology .....................................................5 3. Design Goals ....................................................8 3.1. Information Acquisition before Data Starts .................8 3.2. Lessen Need for Caching and Negative Caching ...............8 3.3. Antispoofing in 'Fast Path' ................................8 3.4. Minimize Data Transmission .................................9 4. Protocol Overview ...............................................9 5. Interaction between UDP Leasequery and Bulk Leasequery .........11 6. Message and Option Definitions .................................12 6.1. Message Framing for TCP ...................................12 6.2. New or Changed Options ....................................13 6.3. Connection and Transmission Parameters ....................20 7. Requestor Behavior .............................................21 7.1. Connecting and General Processing .........................21 7.2. Forming a Bulk Leasequery .................................21 7.3. Processing Bulk Replies ...................................23 7.4. Processing Time Values in Leasequery Messages .............25 7.5. Querying Multiple Servers .................................26 7.6. Making Sense out of Multiple Responses concerning a Single IPv4 Address .....................................26 7.7. Multiple Queries to a Single Server over One Connection ...27 7.8. Closing Connections .......................................28 8. Server Behavior ................................................29 8.1. Accepting Connections .....................................29 8.2. Replying to a Bulk Leasequery .............................29 8.3. Building a Single Reply for Bulk Leasequery ...............33Show full document text