RFC 2933
Internet Group Management Protocol MIB
Internet Group Management Protocol MIB 🎀
Okay bestie, let's talk about RFC 2933 💖. It's a Standards Track doc from October 2000, written by K. McCloghrie (cisco Systems), D. Farinacci (Procket Networks), and D. Thaler (Microsoft) under the Network Working Group. It doesn't say it obsoletes or updates anything, so it's its own little main character 💅✨.
Status of this Memo ✨
Okay so this is an Internet standards track protocol for the Internet community, and the authors want your discussion and suggestions for improvements 🫶. For where it sits in the standardization process, check the current edition of "Internet Official Protocol Standards" (STD 1) 📚. Distribution of this memo is unlimited 🌸.
Copyright Notice 🦋
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract 🌈
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community 💜. The specific part it covers is the objects used for managing the Internet Group Management Protocol (IGMP) 🔥.
Table of Contents 📋
1 Introduction ................................................ 1
2 The SNMP Network Management Framework ....................... 2
3 Overview .................................................... 3
4 Definitions ................................................. 3
5 Security Considerations ..................................... 14
6 Intellectual Property Notice ................................ 15
7 Acknowledgements ............................................ 15
8 Authors' Addresses .......................................... 16
9 References .................................................. 17
10 Full Copyright Statement .................................... 191. Introduction 🧚
Okay so this memo is the MIB portion for managing IGMP 🌸, specifically version 1 [16] or version 2 [17]. A future version will support IGMP version 3, which is still a work in progress 🛠️. All of this MIB module applies to IPv4 multicast routers, and a subset applies to hosts implementing IGMP 💅.
IGMP is specific to IPv4, so this MIB does not manage the equivalent stuff for other address families, like IPv6 🙈. That kind of management might be covered by other MIBs 🫶.
2. The SNMP Network Management Framework 💜
The SNMP Management Framework is giving five major components 👑:
- An overall architecture, described in RFC 2571 [1].
- Mechanisms for describing and naming objects and events for the purpose of management ✨. The first version of this Structure of Management Information (SMI) is called SMIv1 and is described in STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The second version, called SMIv2, is described in STD 58, RFC 2578 [5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7].
- Message protocols for transferring management information 📨. The first version of the SNMP message protocol is called SNMPv1 and is described in STD 15, RFC 1157 [8]. A second version, SNMPv2c, is not an Internet standards track protocol and is described in RFC 1901 [9] and RFC 1906 [10]. The third version of the message protocol is called SNMPv3 and is described in RFC 1906 [10], RFC 2572 [11] and RFC 2574 [12].
- Protocol operations for accessing management information 🔑. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [8]. A second set is described in RFC 1905 [13].
- A set of fundamental applications described in RFC 2573 [14], plus the view-based access control mechanism described in RFC 2575 [15] 🦋.
Managed objects are accessed via a virtual information store, called the Management Information Base or MIB 🌈. Objects in the MIB are defined using the mechanisms defined in the SMI 💅.
This memo specifies a MIB module that is compliant to the SMIv2 ✨. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64) 🙈. Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB 🫶.
3. Overview 🍓
This MIB module contains two tables 💖:
(1) the IGMP Interface Table, which contains one row for each interface on which IGMP is enabled, and
(2) the IGMP Cache Table, which contains one row for each IP multicast group for which there are members on a particular interface.
Both tables are intended to be implemented by hosts and routers 🔥, but some columnar objects in each table apply only to routers 👑.
4. Definitions 💜
Okay this is the actual MIB module, so it's giving precision 🤓. Everything in here is copied exactly as written, so implementers can rely on every single bit ✨.
IGMP-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, mib-2, Counter32, Gauge32,
Unsigned32, IpAddress, TimeTicks FROM SNMPv2-SMI
RowStatus, TruthValue FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
InterfaceIndexOrZero,
InterfaceIndex FROM IF-MIB;
igmpStdMIB MODULE-IDENTITY
LAST-UPDATED "200009280000Z" -- September 28, 2000
ORGANIZATION "IETF IDMR Working Group."
CONTACT-INFO
" Dave Thaler
Microsoft Corporation
One Microsoft Way
Redmond, WA 98052-6399
US
Phone: +1 425 703 8835
EMail: dthaler@microsoft.com"
DESCRIPTION
"The MIB module for IGMP Management."
REVISION "200009280000Z" -- September 28, 2000
DESCRIPTION
"Initial version, published as RFC 2933."
::= { mib-2 85 }
igmpMIBObjects OBJECT IDENTIFIER ::= { igmpStdMIB 1 }
--
-- The IGMP Interface Table
--
igmpInterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF IgmpInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing the interfaces on which IGMP
is enabled."
::= { igmpMIBObjects 1 }
igmpInterfaceEntry OBJECT-TYPE
SYNTAX IgmpInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) representing an interface on
which IGMP is enabled."
INDEX { igmpInterfaceIfIndex }
::= { igmpInterfaceTable 1 }
IgmpInterfaceEntry ::= SEQUENCE {
igmpInterfaceIfIndex InterfaceIndex,
igmpInterfaceQueryInterval Unsigned32,
igmpInterfaceStatus RowStatus,
igmpInterfaceVersion Unsigned32,
igmpInterfaceQuerier IpAddress,
igmpInterfaceQueryMaxResponseTime Unsigned32,
igmpInterfaceQuerierUpTime TimeTicks,
igmpInterfaceQuerierExpiryTime TimeTicks,
igmpInterfaceVersion1QuerierTimer TimeTicks,
igmpInterfaceWrongVersionQueries Counter32,
igmpInterfaceJoins Counter32,
igmpInterfaceProxyIfIndex InterfaceIndexOrZero,
igmpInterfaceGroups Gauge32,
igmpInterfaceRobustness Unsigned32,
igmpInterfaceLastMembQueryIntvl Unsigned32
}
igmpInterfaceIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex value of the interface for which IGMP is
enabled."
::= { igmpInterfaceEntry 1 }
igmpInterfaceQueryInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The frequency at which IGMP Host-Query packets are
transmitted on this interface."
DEFVAL { 125 }
::= { igmpInterfaceEntry 2 }
igmpInterfaceStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The activation of a row enables IGMP on the interface. The
destruction of a row disables IGMP on the interface."
::= { igmpInterfaceEntry 3 }
igmpInterfaceVersion OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The version of IGMP which is running on this interface.
This object can be used to configure a router capable of
running either value. For IGMP to function correctly, all
routers on a LAN must be configured to run the same version
of IGMP on that LAN."
DEFVAL { 2 }
::= { igmpInterfaceEntry 4 }
igmpInterfaceQuerier OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address of the IGMP Querier on the IP subnet to which
this interface is attached."
::= { igmpInterfaceEntry 5 }
igmpInterfaceQueryMaxResponseTime OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
UNITS "tenths of seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum query response time advertised in IGMPv2
queries on this interface."
DEFVAL { 100 }
::= { igmpInterfaceEntry 6 }
igmpInterfaceQuerierUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time since igmpInterfaceQuerier was last changed."
::= { igmpInterfaceEntry 7 }
igmpInterfaceQuerierExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of time remaining before the Other Querier
Present Timer expires. If the local system is the querier,
the value of this object is zero."
::= { igmpInterfaceEntry 8 }
igmpInterfaceVersion1QuerierTimer OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining until the host assumes that there are no
IGMPv1 routers present on the interface. While this is non-
zero, the host will reply to all queries with version 1
membership reports."
::= { igmpInterfaceEntry 9 }
igmpInterfaceWrongVersionQueries OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of queries received whose IGMP version does not
match igmpInterfaceVersion, over the lifetime of the row
entry. IGMP requires that all routers on a LAN be
configured to run the same version of IGMP. Thus, if any
queries are received with the wrong version, this indicates
a configuration error."
::= { igmpInterfaceEntry 10 }
igmpInterfaceJoins OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times a group membership has been added on
this interface; that is, the number of times an entry for
this interface has been added to the Cache Table. This
object gives an indication of the amount of IGMP activity
over the lifetime of the row entry."
::= { igmpInterfaceEntry 11 }okay bestie, the proxy knob is next 🎀 this one lets an interface be pointed at another ifIndex for proxying 🦋
igmpInterfaceProxyIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Some devices implement a form of IGMP proxying whereby
memberships learned on the interface represented by this
row, cause IGMP Host Membership Reports to be sent on the
interface whose ifIndex value is given by this object. Such
a device would implement the igmpV2RouterMIBGroup only on
its router interfaces (those interfaces with non-zero
igmpInterfaceProxyIfIndex). Typically, the value of this
object is 0, indicating that no proxying is being done."
DEFVAL { 0 }
::= { igmpInterfaceEntry 12 }
igmpInterfaceGroups OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current number of entries for this interface in the
Cache Table."
::= { igmpInterfaceEntry 13 }
igmpInterfaceRobustness OBJECT-TYPE
SYNTAX Unsigned32 (1..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Robustness Variable allows tuning for the expected
packet loss on a subnet. If a subnet is expected to be
lossy, the Robustness Variable may be increased. IGMP is
robust to (Robustness Variable-1) packet losses."
DEFVAL { 2 }
::= { igmpInterfaceEntry 14 }
igmpInterfaceLastMembQueryIntvl OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
UNITS "tenths of seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Last Member Query Interval is the Max Response Time
inserted into Group-Specific Queries sent in response to
Leave Group messages, and is also the amount of time between
Group-Specific Query messages. This value may be tuned to
modify the leave latency of the network. A reduced value
results in reduced time to detect the loss of the last
member of a group. The value of this object is irrelevant
if igmpInterfaceVersion is 1."
DEFVAL { 10 }
::= { igmpInterfaceEntry 15 }
--
-- The IGMP Cache Table
--
igmpCacheTable OBJECT-TYPE
SYNTAX SEQUENCE OF IgmpCacheEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The (conceptual) table listing the IP multicast groups for
which there are members on a particular interface."
::= { igmpMIBObjects 2 }
igmpCacheEntry OBJECT-TYPE
SYNTAX IgmpCacheEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) in the igmpCacheTable."
INDEX { igmpCacheAddress, igmpCacheIfIndex }
::= { igmpCacheTable 1 }
IgmpCacheEntry ::= SEQUENCE {
igmpCacheAddress IpAddress,
igmpCacheIfIndex InterfaceIndex,
igmpCacheSelf TruthValue,
igmpCacheLastReporter IpAddress,
igmpCacheUpTime TimeTicks,
igmpCacheExpiryTime TimeTicks,
igmpCacheStatus RowStatus,
igmpCacheVersion1HostTimer TimeTicks
}
igmpCacheAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP multicast group address for which this entry
contains information."
::= { igmpCacheEntry 1 }
igmpCacheIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The interface for which this entry contains information for
an IP multicast group address."
::= { igmpCacheEntry 2 }
igmpCacheSelf OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An indication of whether the local system is a member of
this group address on this interface."
DEFVAL { true }
::= { igmpCacheEntry 3 }
igmpCacheLastReporter OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IP address of the source of the last membership report
received for this IP Multicast group address on this
interface. If no membership report has been received, this
object has the value 0.0.0.0."
::= { igmpCacheEntry 4 }
igmpCacheUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time elapsed since this entry was created."
::= { igmpCacheEntry 5 }
igmpCacheExpiryTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum amount of time remaining before this entry will
be aged out. A value of 0 indicates that the entry is only
present because igmpCacheSelf is true and that if the router
left the group, this entry would be aged out immediately.
Note that some implementations may process membership
reports from the local system in the same way as reports
from other hosts, so a value of 0 is not required."
::= { igmpCacheEntry 6 }
igmpCacheStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this entry."
::= { igmpCacheEntry 7 }
igmpCacheVersion1HostTimer OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining until the local router will assume that
there are no longer any IGMP version 1 members on the IP
subnet attached to this interface. Upon hearing any IGMPv1
Membership Report, this value is reset to the group
membership timer. While this time remaining is non-zero,
the local router ignores any IGMPv2 Leave messages for this
group that it receives on this interface."
::= { igmpCacheEntry 8 }okay so the conformance bit is where the MIB gets organised into groups and compliance statements, and it's giving very "here's exactly who has to implement what" energy 💅
-- conformance information
igmpMIBConformance
OBJECT IDENTIFIER ::= { igmpStdMIB 2 }
igmpMIBCompliances
OBJECT IDENTIFIER ::= { igmpMIBConformance 1 }
igmpMIBGroups OBJECT IDENTIFIER ::= { igmpMIBConformance 2 }
-- compliance statements
igmpV1HostMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for hosts running IGMPv1 and
implementing the IGMP MIB."
MODULE -- this module
MANDATORY-GROUPS { igmpBaseMIBGroup }
OBJECT igmpInterfaceStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT igmpCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { igmpMIBCompliances 1 }
igmpV1RouterMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for routers running IGMPv1 and
implementing the IGMP MIB."
MODULE -- this module
MANDATORY-GROUPS { igmpBaseMIBGroup,
igmpRouterMIBGroup
}
OBJECT igmpInterfaceStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT igmpCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { igmpMIBCompliances 2 }
igmpV2HostMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for hosts running IGMPv2 and
implementing the IGMP MIB."
MODULE -- this module
MANDATORY-GROUPS { igmpBaseMIBGroup,
igmpV2HostMIBGroup
}
OBJECT igmpInterfaceStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT igmpCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { igmpMIBCompliances 3 }
igmpV2RouterMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for routers running IGMPv2 and
implementing the IGMP MIB."
MODULE -- this module
MANDATORY-GROUPS { igmpBaseMIBGroup,
igmpRouterMIBGroup,
igmpV2RouterMIBGroup
}
OBJECT igmpInterfaceStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT igmpCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { igmpMIBCompliances 4 }
-- units of conformance
igmpBaseMIBGroup OBJECT-GROUP
OBJECTS { igmpCacheSelf,
igmpCacheStatus, igmpInterfaceStatus
}
STATUS current
DESCRIPTION
"The basic collection of objects providing management of
IGMP version 1 or 2."
::= { igmpMIBGroups 1 }
igmpRouterMIBGroup OBJECT-GROUP
OBJECTS { igmpCacheUpTime, igmpCacheExpiryTime,
igmpInterfaceJoins, igmpInterfaceGroups,
igmpCacheLastReporter, igmpInterfaceQuerierUpTime,
igmpInterfaceQuerierExpiryTime,
igmpInterfaceQueryInterval
}
STATUS current
DESCRIPTION
"A collection of additional objects for management of IGMP
version 1 or 2 in routers."
::= { igmpMIBGroups 2 }
igmpV2HostMIBGroup OBJECT-GROUP
OBJECTS { igmpInterfaceVersion1QuerierTimer }
STATUS current
DESCRIPTION
"A collection of additional objects for management of IGMP
version 2 in hosts."
::= { igmpMIBGroups 3 }
igmpHostOptMIBGroup OBJECT-GROUP
OBJECTS { igmpCacheLastReporter, igmpInterfaceQuerier }
STATUS current
DESCRIPTION
"A collection of optional objects for IGMP hosts.
Supporting this group can be especially useful in an
environment with a router which does not support the IGMP
MIB."
::= { igmpMIBGroups 4 }
igmpV2RouterMIBGroup OBJECT-GROUP
OBJECTS { igmpInterfaceVersion, igmpInterfaceQuerier,
igmpInterfaceQueryMaxResponseTime,
igmpInterfaceRobustness,
igmpInterfaceWrongVersionQueries,
igmpInterfaceLastMembQueryIntvl,
igmpCacheVersion1HostTimer
}
STATUS current
DESCRIPTION
"A collection of additional objects for management of IGMP
version 2 in routers."
::= { igmpMIBGroups 5 }
igmpV2ProxyMIBGroup OBJECT-GROUP
OBJECTS { igmpInterfaceProxyIfIndex }
STATUS current
DESCRIPTION
"A collection of additional objects for management of IGMP
proxy devices."
::= { igmpMIBGroups 6 }
END5. Security Considerations ✨
okay bestie, this part is serious 🥺🔒 This MIB has readable objects whose values tell you stuff about multicast sessions, and some of that info could be sensitive 👀 Especially igmpCacheSelf and igmpCacheLastReporter, because they can be used to figure out which machines are listening to a given group address. 🕵️♀️ There are also a bunch of objects with a MAX-ACCESS of read-write and/or read-create, which let an admin configure IGMP on the router 🎀
So here's the tea: unauthorized access to the readable objects is relatively innocuous 💅 But unauthorized access to the writable objects could cause a denial of service 💀 That's why turning on SET operations in a non-secure environment without proper protection can seriously mess with network operations 😭
SNMPv1 by itself is that insecure environment. 🚨 Even if the network itself is secure (for example by using IPSec), there's still no control over who on that secure network gets to access and SET (change, create, or delete) the objects in this MIB. Not it! 🙅♀️
Okay, the fix: implementers should look at the security features that the SNMPv3 framework provides 🧚 Specifically, the User-based Security Model RFC 2574 [12] and the View-based Access Control Model RFC 2575 [15] are the ones to use. Super recommended, no notes 💖
And then it's on the customer/user to make sure the SNMP entity giving access to this MIB is set up so only the principals (users) with legitimate rights can reach those objects. Main character responsibility, fr fr 👑
6. Intellectual Property Notice 🎀
Real talk: the IETF doesn't take a position on whether any intellectual property or other rights claimed about the implementation or use of this technology are valid, what their scope is, or whether any license under those rights is available. 🧐 It also doesn't say it has actually tried to find any of those rights. 🤷♀️ If you want info on the IETF's procedures for rights in standards-track and standards-related documents, check out BCP-11. Copies of claims of rights made available for publication, plus any assurances of licenses to be made available, or the result of an attempt to get a general license or permission for implementers or users to use those proprietary rights, can be obtained from the IETF Secretariat 📬
The IETF also invites anyone interested to tell them about any copyrights, patents, patent applications, or other proprietary rights that might cover technology required to practice this standard 🦋 Send that info to the IETF Executive Director 💌
7. Acknowledgements 🫶
This MIB module got updated thanks to feedback from the IETF's Inter-Domain Multicast Routing (IDMR) Working Group. The IDMR crew literally made it better ✨💜
8. Authors' Addresses 💌
Here are the authors' contact details, bestie 🌸 Copied exactly so you can reach them:
Keith McCloghrie
cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
Phone: +1 408 526 5260
EMail: kzm@cisco.com
Dino Farinacci
Procket Networks
3850 North First Street
San Jose, CA 95134
Phone: +1 408-954-7909
Email: dino@procket.com
Dave Thaler
Microsoft Corporation
One Microsoft Way
Redmond, WA 48105-6399
Phone: +1 425 703 8835
EMail: dthaler@microsoft.com9. References 📚
[1] Wijnen, B., Harrington, D. and R. Presuhn, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999.
[2] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991.
[4] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991.
[5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999.
[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990.
[9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996.
[10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996.
[11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999.
[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999.
[13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996.
[14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999.
[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999.
[16] Deering, S., "Host Extensions for IP Multicasting", STD 5, RFC 1112, August 1989.
[17] Fenner, W., "Internet Group Management Protocol, Version 2", RFC 2236, November 1997.
10. Full Copyright Statement 💖
Copyright (C) The Internet Society (2000). All Rights Reserved. 🌈
This document and translations of it can be copied and handed out to others 🎀 Derivative works that comment on or explain it, or help with implementing it, can be made, copied, published, and distributed, in whole or in part, with no restriction of any kind 🙌 The one catch: the copyright notice and this paragraph have to stay on every copy and derivative work ✨ The document itself can't be modified in any way, like removing the copyright notice or the references to the Internet Society or other Internet organizations. The exceptions are if it's needed for developing Internet standards (in which case the Internet Standards process copyright procedures must be followed) or if it's being translated into languages other than English 🌸
The limited permissions above are perpetual and won't be revoked by the Internet Society or its successors or assigns 🦋
This document and the info in it are provided on an "AS IS" basis, and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 💀
Acknowledgement 🧚
Funding for the RFC Editor function is currently provided by the Internet Society. Thank you, Internet Society 💜
📦 where this page comes from
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