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Dynamic Host Configuration Protocol (RFC1531)

IP.com Disclosure Number: IPCOM000002362D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2019-Feb-13
Document File: 39 page(s) / 51K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Droms: AUTHOR

Related Documents

10.17487/RFC1531: DOI

Abstract

The Dynamic Host Configuration Protocol (DHCP) provides a framework for passing configuration information to hosts on a TCP/IP network. [STANDARDS-TRACK]

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This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group R. Droms Request for Comments: 1531 Bucknell University Category: Standards Track October 1993

Dynamic Host Configuration Protocol

Status of this memo

This RFC 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" for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

The Dynamic Host Configuration Protocol (DHCP) provides a framework for passing configuration information to hosts on a TCP/IP network. DHCP is based on the Bootstrap Protocol (BOOTP) [7], adding the capability of automatic allocation of reusable network addresses and additional configuration options [19]. DHCP captures the behavior of BOOTP relay agents [7, 23], and DHCP participants can interoperate with BOOTP participants [9].

Table of Contents

1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 Related Work. . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Problem definition and issues . . . . . . . . . . . . . . . . 4 1.3 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.5 Design goals. . . . . . . . . . . . . . . . . . . . . . . . . 6 2. Protocol Summary . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 Configuration parameters repository . . . . . . . . . . . . . 10 2.2 Dynamic allocation of network addresses . . . . . . . . . . . 11 3. The Client-Server Protocol . . . . . . . . . . . . . . . . . . 11 3.1 Client-server interaction - allocating a network address. . . 12 3.2 Client-server interaction - reusing a previously allocated network address . . . . . . . . . . . . . . . . . . . . . . . 17 3.3 Interpretation and representation of time values. . . . . . . 19 3.4 Host parameters in DHCP . . . . . . . . . . . . . . . . . . . 19 3.5 Use of DHCP in clients with multiple interfaces . . . . . . . 20 3.6 When clients should use DHCP. . . . . . . . . . . . . . . . . 20 4. Specification of the DHCP client-server protocol . . . . . . . 21 4.1 Constructing and sending DHCP messages. . . . . . . . . . . . 21 4.2 DHCP server administrative controls . . . . . . . . . . . . . 23 4.3 DHCP server behavior. . . . . . . . . . . . . . . . . . . . . 24

Droms [Page 1]

RFC 1531 Dynamic Host Configuration Protocol October 1993

4.3.1 DHCPDISCOVER message. . . . . . . . . . . . . . . . . . . . 24 4.3.2 DHCPREQUEST message . . . . . . . . . . . . . . . . . . . . 27 4.3.3 DHCPDECLINE message . . . . . . . . . . . . . . . . . . . . 29 4.3.4 DHCPRELEASE message . . . . . . . . . . . . . . . . . . . . 29 4.4 DHCP client behavior. . . . . . . . . . . . . . . . . . . . . 29 4.4.1 Initialization and allocation of network address. . . . . . 29 4.4.2 Initialization with known network address . . . . . . . . . 33 4.4.3 Initialization with a known DHCP server addres...

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