RFC 2132 (rfc2132) - Page 1 of 34

DHCP Options and BOOTP Vendor Extensions

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Network Working Group                                       S. Alexander
Request for Comments: 2132                        Silicon Graphics, Inc.
Obsoletes: 1533                                                 R. Droms
Category: Standards Track                            Bucknell University
                                                              March 1997

                DHCP Options and BOOTP Vendor Extensions

Status of this memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Abstract

   The Dynamic Host Configuration Protocol (DHCP) [1] provides a
   framework for passing configuration information to hosts on a TCP/IP
   network.  Configuration parameters and other control information are
   carried in tagged data items that are stored in the 'options' field
   of the DHCP message.  The data items themselves are also called
   "options."

   This document specifies the current set of DHCP options.  Future
   options will be specified in separate RFCs.  The current list of
   valid options is also available in ftp://ftp.isi.edu/in-
   notes/iana/assignments [22].

   All of the vendor information extensions defined in RFC 1497 [2] may
   be used as DHCP options.  The definitions given in RFC 1497 are
   included in this document, which supersedes RFC 1497.  All of the
   DHCP options defined in this document, except for those specific to
   DHCP as defined in section 9, may be used as BOOTP vendor information
   extensions.

Table of Contents

    1.  Introduction ..............................................  2
    2.  BOOTP Extension/DHCP Option Field Format ..................  4
    3.  RFC 1497 Vendor Extensions ................................  5
    4.  IP Layer Parameters per Host .............................. 11
    5.  IP Layer Parameters per Interface ........................  13
    6.  Link Layer Parameters per Interface ....................... 16
    7.  TCP Parameters ............................................ 17
    8.  Application and Service Parameters ........................ 18
    9.  DHCP Extensions ........................................... 25



Alexander & Droms           Standards Track
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