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The User Class Option for DHCP (RFC3004)

IP.com Disclosure Number: IPCOM000005196D
Original Publication Date: 2000-Nov-01
Included in the Prior Art Database: 2001-Aug-17
Document File: 7 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Stump: AUTHOR [+7]

Abstract

This option is used by a Dynamic Host Configuration Protocol (DHCP) client to optionally identify the type or category of user or applications it represents. The information contained in this option is an opaque field that represents the user class of which the client is a member. Based on this class, a DHCP server selects the appropriate address pool to assign an address to the client and the appropriate configuration parameters. This option should be configurable by a user.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 35% of the total text.

Network Working Group G. Stump Request for Comments: 3004 IBM Category: Standards Track R. Droms Cisco Systems

Y. Gu R. Vyaghrapuri A. Demirtjis Microsoft

B. Beser Pacific Broadband Communications

J. Privat Northstream AB

November 2000

The User Class Option for DHCP

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.

Copyright Notice

Copyright (C) The Internet Society (2000). All Rights Reserved.

Abstract

This option is used by a Dynamic Host Configuration Protocol (DHCP) client to optionally identify the type or category of user or applications it represents. The information contained in this option is an opaque field that represents the user class of which the client is a member. Based on this class, a DHCP server selects the appropriate address pool to assign an address to the client and the appropriate configuration parameters. This option should be configurable by a user.

1. Introduction

DHCP administrators may define specific user class identifiers to convey information about a client's software configuration or about its user's preferences. For example, the User Class option can be used to configure all clients of people in the accounting department with a different printer than clients of people in the marketing department.

Stump, et al. Standards Track [Page 1]

RFC 3004 The User Class Option for DHCP November 2000

2. Requirements Terminology

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY" and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [3].

3. DHCP Terminology

o "DHCP client" A DHCP client or "client" is an Internet host using DHCP to obtain configuration parameters such as a network address.

o "DHCP server" A DHCP server or "server" is an Internet host that returns configuration parameters to DHCP clients.

o "binding" A binding is a collection of configuration parameters, including at least an IP address, associated with or "bound to" a DHCP client. Bindings are managed by DHCP servers.

4. User Class option

This option is used by a DHCP client to optionally identify the type or category of user or applications it represents. A DHCP server uses the User Class option to choose the address pool it allocates an address from and/or to select any other configuration option.

This option is a DHCP option [1, 2].

This option MAY carry multiple User Classes. Servers may interpret the meanings of multiple class specifications in an implementation dependent or configuration dependent manner, and so the use of multiple classes by a DHCP client should be based on the specific server implementation and configuration which will be used to process that User class option.

The format of t...