View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) (RFC2275)
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2019-Feb-15
Internet Society Requests For Comment (RFCs)
B. Wijnen: AUTHOR [+2]
This document describes the View-based Access Control Model for use in the SNMP architecture [RFC2261]. It defines the Elements of Procedure for controlling access to management information. This document also includes a MIB for remotely managing the configuration parameters for the View-based Access Control Model. [STANDARDS-TRACK]
Network Working Group B. Wijnen Request for Comments: 2275 IBM T. J. Watson Research Obsoletes: 2265 R. Presuhn Category: Standards Track BMC Software, Inc. K. McCloghrie Cisco Systems, Inc. January 1998
View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)
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 (C) The Internet Society (1998). All Rights Reserved.
Due to a clerical error in the assignment of the snmpModules in this memo, this RFC provides the corrected number assignment for this protocol. This memo obsoletes RFC 2265.
This document describes the View-based Access Control Model for use in the SNMP architecture [RFC2271]. It defines the Elements of Procedure for controlling access to management information. This document also includes a MIB for remotely managing the configuration parameters for the View-based Access Control Model.
Table of Contents
1. Introduction 2 1.2. Access Control 3 1.3. Local Configuration Datastore 3 2. Elements of the Model 3 2.1. Groups 3 2.2. securityLevel 4 2.3. Contexts 4 2.4. MIB Views and View Families 4 2.4.1. View Subtree 5
Wijnen, et. al. Standards Track [Page 1]
RFC 2275 VACM for SNMPv3 January 1998
2.4.2. ViewTreeFamily 5 2.5. Access Policy 6 3. Elements of Procedure 6 3.1. Overview of isAccessAllowed Process 8 3.2. Processing the isAccessAllowed Service Request 9 4. Definitions 10 5. Intellectual Property 26 6. Acknowledgements 27 7. Security Considerations 28 7.1. Recommended Practices 28 7.2. Defining Groups 29 7.3. Conformance 29 8. References 29 9. Editors’ Addresses 30 A.1. Installation Parameters 31 B. Full Copyright Statement 36
The Architecture for describing Internet Management Frameworks [RFC2271] describes that an SNMP engine is composed of:
1) a Dispatcher 2) a Message Processing Subsystem, 3) a Security Subsystem, and 4) an Access Control Subsystem.
Applications make use of the services of these subsystems.
It is important to understand the SNMP architecture and its terminology to understand where the View-based Access Control Model described in this document fits into the architecture and interacts with other subsystems within the architecture. The reader is expected to have read and understood the description and terminology of the SNMP architecture, as defined in [RFC2271].
The Access Control Subsystem of an SNMP engine has the responsibility for checking whether a specific type of access (read, write, notify) to a particular object (instance) is allowed.
It is the purpose of this document to define a specific model of the Access Control Subsystem, designated the View-based Access Cont...