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Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4)

The information below is for an old version of the document that is already published as an RFC.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 3396.
Authors Ted Lemon , Stuart Cheshire
Last updated 2013-03-02 (Latest revision 2002-09-11)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Additional resources Mailing list discussion
Stream WG state (None)
Document shepherd (None)
IESG IESG state Became RFC 3396 (Proposed Standard)
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Dr. Thomas Narten
Send notices to <>
A new Request for Comments is now available in online RFC libraries.

        RFC 3396

        Title:      Encoding Long Options in the Dynamic Host
                    Configuration Protocol (DHCPv4)
        Author(s):  T. Lemon, S. Cheshire
        Status:     Standards Track
        Date:       November 2002
        Pages:      9
        Characters: 18779
        Updates:    2131
        I-D Tag:    draft-ietf-dhc-concat-05.txt


This document specifies the processing rules for Dynamic Host
Configuration Protocol (DHCPv4) options that appear multiple times in
the same message.  Multiple instances of the same option are generated
when an option exceeds 255 octets in size (the maximum size of a
single option) or when an option needs to be split apart in order to
take advantage of DHCP option overloading.  When multiple instances of
the same option appear in the options, file and/or sname fields in a
DHCP packet, the contents of these options are concatenated together
to form a single option prior to processing.

This document is a product of Dynamic Host Configuration Working Group
of the IETF.

This is now a Proposed Standard Protocol.

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.

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