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Lightweight Directory Access Protocol (v3) (RFC2251) Disclosure Number: IPCOM000002810D
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Wahl: AUTHOR [+2]


The protocol described in this document is designed to provide access to directories supporting the X.500 models, while not incurring the resource requirements of the X.500 Directory Access Protocol (DAP). This protocol is specifically targeted at management applications and browser applications that provide read/write interactive access to directories. When used with a directory supporting the X.500 protocols, it is intended to be a complement to the X.500 DAP.

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Network Working Group M. Wahl

Request for Comments: 2251 Critical Angle Inc.

Category: Standards Track T. Howes

Netscape Communications Corp.

S. Kille

Isode Limited

December 1997

Lightweight Directory Access Protocol (v3)

1. 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 (1997). All Rights Reserved.


This document describes a directory access protocol that provides

both read and update access. Update access requires secure

authentication, but this document does not mandate implementation of

any satisfactory authentication mechanisms.

In accordance with RFC 2026, section 4.4.1, this specification is

being approved by IESG as a Proposed Standard despite this

limitation, for the following reasons:

a. to encourage implementation and interoperability testing of

these protocols (with or without update access) before they

are deployed, and

b. to encourage deployment and use of these protocols in read-only

applications. (e.g. applications where LDAPv3 is used as

a query language for directories which are updated by some

secure mechanism other than LDAP), and

c. to avoid delaying the advancement and deployment of other Internet

standards-track protocols which require the ability to query, but

not update, LDAPv3 directory servers.

Readers are hereby warned that until mandatory authentication

mechanisms are standardized, clients and servers written according to

this specification which make use of update functionality are



Implementors are hereby discouraged from deploying LDAPv3 clients or

servers which implement the update functionality, until a Proposed

Standard for mandatory authentication in LDAPv3 has been approved and

published as an RFC.

Table of Contents

1. Status of this Memo .................................... 1...