Network Working Group K. McCloghrie
Request for Comments: 1213 Hughes LAN Systems, Inc.
Obsoletes: RFC 1158 M. Rose
Performance Systems International
Editors
March 1991
Management Information Base for Network Management
of TCP/IP-based internets:
MIB-II
Status of this Memo
This memo defines the second version of the Management Information
Base (MIB-II) for use with network management protocols in TCP/IP-
based internets. This RFC specifies an IAB standards track protocol
for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the "IAB
Official Protocol Standards" for the standardization state and status
of this protocol. Distribution of this memo is unlimited.
Table of Contents
1. Abstract............................................... 2
2. Introduction .......................................... 2
3. Changes from RFC 1156 ................................. 3
3.1 Deprecated Objects ................................... 3
3.2 Display Strings ...................................... 4
3.3 Physical Addresses ................................... 4
3.4 The System Group ..................................... 5
3.5 The Interfaces Group ................................. 5
3.6 The Address Translation Group ........................ 6
3.7 The IP Group ......................................... 6
3.8 The ICMP Group ....................................... 7
3.9 The TCP Group ........................................ 7
3.10 The UDP Group ....................................... 7
3.11 The EGP Group ....................................... 7
3.12 The Transmission Group .............................. 8
3.13 The SNMP Group ...................................... 8
3.14 Changes from RFC 1158 ................. ............. 9
4. Objects ............................................... 10
4.1 Format of Definitions ................................ 10
5. Overview .............................................. 10
6. Definitions ........................................... 12
6.1 Textual Conventions .................................. 12
6.2 Groups in MIB-II ..................................... 13
6.3 The System Group ..................................... 13
SNMP Working Group [Page 1]
RFC 1213 MIB-II March 1991
6.4 The Interfaces Group ................................. 16
6.5 The Address Translation Group ........................ 23
6.6 The IP Group ......................................... 26
6.7 The ICMP Group ....................................... 41
6.8 The TCP Group ........................................ 46
6.9 The UDP Group ........................................ 52
6.10 The EGP Group ....................................... 54
6.11 The Transmission Group .............................. 60
6.12 The SNMP Group ...................................... 60
7. Acknowledgements ...................................... 67
8. References ............................................ 69
9. Security Considerations ............................... 70
10. Authors' Addresses ................................... 70
1. Abstract
This memo defines the second version of the Management Information
Base (MIB-II) for use with network management protocols in TCP/IP-
based internets. In particular, together with its companion memos
which describe the structure of management information (RFC 1155)
along with the network management protocol (RFC 1157) for TCP/IP-
based internets, these documents provide a simple, workable
architecture and system for managing TCP/IP-based internets and in
particular the Internet community.
2. Introduction
As reported in RFC 1052, IAB Recommendations for the Development of
Internet Network Management Standards [1], a two-prong strategy for
network management of TCP/IP-based internets was undertaken. In the
short-term, the Simple Network Management Protocol (SNMP) was to be
used to manage nodes in the Internet community. In the long-term,
the use of the OSI network management framework was to be examined.
Two documents were produced to define the management information: RFC
1065, which defined the Structure of Management Information (SMI)