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Customizing DHCP Configuration on the Basis of Network Topology (RFC7969) Disclosure Number: IPCOM000248036D
Original Publication Date: 2016-Oct-01
Included in the Prior Art Database: 2016-Oct-20
Document File: 40 page(s) / 47K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

T. Lemon: AUTHOR [+1]


The DHCPv4 [RFC2131] and DHCPv6 [RFC3315] protocol specifications describe how addresses can be allocated to clients based on network topology information provided by the DHCP relay infrastructure. Address allocation decisions are integral to the allocation of addresses and prefixes in DHCP.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

Internet Engineering Task Force (IETF)                          T. Lemon Request for Comments: 7969                                 Nominum, Inc. Category: Informational                                     T. Mrugalski ISSN: 2070-1721                                                      ISC                                                             October 2016

     Customizing DHCP Configuration on the Basis of Network Topology


   DHCP servers have evolved over the years to provide significant    functionality beyond that described in the DHCP base specifications.    One aspect of this functionality is support for context-specific    configuration information.  This memo describes some such features    and explains their operation.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   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).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Copyright Notice

   Copyright (c) 2016 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    ( 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.

 Lemon & Mrugalski             Informational                     [Page 1]
 RFC 7969               DHCP Topology Customization          October 2016

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2

   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3

   3.  Identifying Client's Location by DHCP Servers . . . . . . . .   3

     3.1.  DHCPv4-Specific Behavior  . . . . . . . . . . . . . . . .   7

     3.2.  DHCPv6-Specific Be...