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Net-SNMP Distributed MIBs

by 날으는물고기 2009. 3. 10.

Net-SNMP Distributed MIBs

Net-SNMP Distributed MIBs (Management Information Base)

SMI(Structure and identification of Management Information)

The following are the MIB files distributed with Net-SNMP. Note that because they are distributed with Net-SNMP does not mean the agent implements them all. Another good place for finding other MIB definitions can be found at the MIB depot.

MIBRFCDescription
SNMPv2-TM
[mib file]
 rfc3417 
The MIB module for SNMP transport mappings.



Copyright (C) The Internet Society (2002). This



             version of this MIB module is part of RFC 3417;



             see the RFC itself for full legal notices.
SNMPv2-MIB
[mib file]
 rfc3418 
The MIB module for SNMP entities.



Copyright (C) The Internet Society (2002). This



             version of this MIB module is part of RFC 3418;



             see the RFC itself for full legal notices.
SNMP-FRAMEWORK-MIB
[mib file]
 rfc3411 
The SNMP Management Architecture MIB



Copyright (C) The Internet Society (2002). This



                     version of this MIB module is part of RFC 3411;



                     see the RFC itself for full legal notices.
SNMP-MPD-MIB
[mib file]
 rfc3412 
The MIB for Message Processing and Dispatching



Copyright (C) The Internet Society (2002). This



                  version of this MIB module is part of RFC 3412;



                  see the RFC itself for full legal notices.
SNMP-TARGET-MIB
[mib file]
 rfc3413 
This MIB module defines MIB objects which provide



mechanisms to remotely configure the parameters used



by an SNMP entity for the generation of SNMP messages.





Copyright (C) The Internet Society (2002). This



version of this MIB module is part of RFC 3413;



see the RFC itself for full legal notices.
SNMP-NOTIFICATION-MIB
[mib file]
 rfc3413 
This MIB module defines MIB objects which provide



mechanisms to remotely configure the parameters



used by an SNMP entity for the generation of



notifications.





Copyright (C) The Internet Society (2002). This



version of this MIB module is part of RFC 3413;



see the RFC itself for full legal notices.
SNMP-PROXY-MIB
[mib file]
 rfc3413 
This MIB module defines MIB objects which provide



mechanisms to remotely configure the parameters



used by a proxy forwarding application.





Copyright (C) The Internet Society (2002). This



version of this MIB module is part of RFC 3413;



see the RFC itself for full legal notices.
SNMP-USER-BASED-SM-MIB
[mib file]
 rfc3414 
The management information definitions for the



SNMP User-based Security Model.





Copyright (C) The Internet Society (2002). This



version of this MIB module is part of RFC 3414;



see the RFC itself for full legal notices.
SNMP-VIEW-BASED-ACM-MIB
[mib file]
 rfc3415 
The management information definitions for the



View-based Access Control Model for SNMP.





Copyright (C) The Internet Society (2002). This



version of this MIB module is part of RFC 3415;



see the RFC itself for full legal notices.
SNMP-COMMUNITY-MIB
[mib file]
 rfc2576 
This MIB module defines objects to help support coexistence



between SNMPv1, SNMPv2c, and SNMPv3.
TRANSPORT-ADDRESS-MIB
[mib file]
 rfc3419 
This MIB module provides commonly used transport



address definitions.





Copyright (C) The Internet Society (2002). This version of



this MIB module is part of RFC 3419; see the RFC itself for



full legal notices.
IF-MIB
[mib file]
 rfc2863 
The MIB module to describe generic objects for network



interface sub-layers.  This MIB is an updated version of



MIB-II's ifTable, and incorporates the extensions defined in



RFC 1229.
IF-INVERTED-STACK-MIB
[mib file]
 rfc2864 
The MIB module which provides the Inverted Stack Table for



interface sub-layers.
EtherLike-MIB
[mib file]
 rfc3635 
The MIB module to describe generic objects for



ethernet-like network interfaces.





The following reference is used throughout this



MIB module:





[IEEE 802.3 Std] refers to:



   IEEE Std 802.3, 2002 Edition: 'IEEE Standard





   for Information technology -



   Telecommunications and information exchange



   between systems - Local and metropolitan



   area networks - Specific requirements -



   Part 3: Carrier sense multiple access with



   collision detection (CSMA/CD) access method



   and physical layer specifications', as



   amended by IEEE Std 802.3ae-2002:



   'Amendment: Media Access Control (MAC)



   Parameters, Physical Layer, and Management



   Parameters for 10 Gb/s Operation', August,



   2002.





Of particular interest is Clause 30, '10 Mb/s,



100 Mb/s, 1000 Mb/s, and 10 Gb/s Management'.





Copyright (C) The Internet Society (2003).  This



version of this MIB module is part of RFC 3635;



see the RFC itself for full legal notices.
IP-MIB
[mib file]
 rfc4293 
The MIB module for managing IP and ICMP implementations, but



excluding their management of IP routes.





Copyright (C) The Internet Society (2006).  This version of



this MIB module is part of RFC 4293; see the RFC itself for



full legal notices.
IP-FORWARD-MIB
[mib file]
 rfc4292 
The MIB module for the management of CIDR multipath IP



Routes.





Copyright (C) The Internet Society (2006).  This version



of this MIB module is a part of RFC 4292; see the RFC



itself for full legal notices.
IANA-RTPROTO-MIB
[mib file]
   
This MIB module defines the IANAipRouteProtocol and



IANAipMRouteProtocol textual conventions for use in MIBs



which need to identify unicast or multicast routing



mechanisms.





Any additions or changes to the contents of this MIB module



require either publication of an RFC, or Designated Expert



Review as defined in RFC 2434, Guidelines for Writing an



IANA Considerations Section in RFCs.  The Designated Expert 



will be selected by the IESG Area Director(s) of the Routing



Area.
TCP-MIB
[mib file]
 rfc4022 
The MIB module for managing TCP implementations.



Copyright (C) The Internet Society (2005). This version



            of this MIB module is a part of RFC 4022; see the RFC



            itself for full legal notices.
UDP-MIB
[mib file]
 rfc4113 
The MIB module for managing UDP implementations.



Copyright (C) The Internet Society (2005).  This



version of this MIB module is part of RFC 4113;



see the RFC itself for full legal notices.
INET-ADDRESS-MIB
[mib file]
 rfc4001 
This MIB module defines textual conventions for



representing Internet addresses.  An Internet



address can be an IPv4 address, an IPv6 address,



or a DNS domain name.  This module also defines



textual conventions for Internet port numbers,



autonomous system numbers, and the length of an



Internet address prefix.





Copyright (C) The Internet Society (2005).  This version



of this MIB module is part of RFC 4001, see the RFC



itself for full legal notices.
HCNUM-TC
[mib file]
 rfc2856 
A MIB module containing textual conventions



for high capacity data types. This module



addresses an immediate need for data types not directly



supported in the SMIv2. This short-term solution



is meant to be deprecated as a long-term solution



is deployed.
HOST-RESOURCES-MIB
[mib file]
 rfc2790 
This MIB is for use in managing host systems. The term



`host' is construed to mean any computer that communicates



with other similar computers attached to the internet and



that is directly used by one or more human beings. Although



this MIB does not necessarily apply to devices whose primary



function is communications services (e.g., terminal servers,



routers, bridges, monitoring equipment), such relevance is



not explicitly precluded.  This MIB instruments attributes



common to all internet hosts including, for example, both



personal computers and systems that run variants of Unix.
HOST-RESOURCES-TYPES
[mib file]
 rfc2790 
This MIB module registers type definitions for



storage types, device types, and file system types.





After the initial revision, this module will be



maintained by IANA.
RMON-MIB
[mib file]
 rfc2819 
Remote network monitoring devices, often called



monitors or probes, are instruments that exist for



the purpose of managing a network. This MIB defines



objects for managing remote network monitoring devices.
IPV6-MIB
[mib file]
 rfc2465 
The MIB module for entities implementing the IPv6



protocol.
IPV6-ICMP-MIB
[mib file]
 rfc2466 
The MIB module for entities implementing



the ICMPv6.
IPV6-TCP-MIB
[mib file]
 rfc2452 
The MIB module for entities implementing TCP over IPv6.
IPV6-UDP-MIB
[mib file]
 rfc2454 
The MIB module for entities implementing UDP over IPv6.
DISMAN-EVENT-MIB
[mib file]
 rfc2981 
The MIB module for defining event triggers and actions



for network management purposes.
DISMAN-SCRIPT-MIB
[mib file]
 rfc3165 
This MIB module defines a set of objects that allow to



delegate management scripts to distributed managers.
DISMAN-SCHEDULE-MIB
[mib file]
 rfc3231 
This MIB module defines a MIB which provides mechanisms to



schedule SNMP set operations periodically or at specific



points in time.
NOTIFICATION-LOG-MIB
[mib file]
 rfc3014 
The MIB module for logging SNMP Notifications, that is, Traps



and Informs.
SNMP-USM-AES-MIB
[mib file]
 rfc3826 
Definitions of Object Identities needed for



the use of AES by SNMP's User-based Security



Model.





Copyright (C) The Internet Society (2004).





            This version of this MIB module is part of RFC 3826;



            see the RFC itself for full legal notices.



            Supplementary information may be available on



            http://www.ietf.org/copyrights/ianamib.html.
SNMP-USM-DH-OBJECTS-MIB
[mib file]
 rfc2786 
The management information definitions for providing forward



secrecy for key changes for the usmUserTable, and for providing a



method for 'kickstarting' access to the agent via a Diffie-Helman



key agreement.
AGENTX-MIB
[mib file]
 rfc2742 
This is the MIB module for the SNMP Agent Extensibility



Protocol (AgentX).  This MIB module will be implemented by



the master agent.
IANAifType-MIB
[mib file]
   
This MIB module defines the IANAifType Textual



Convention, and thus the enumerated values of



the ifType object defined in MIB-II's ifTable.
IANA-LANGUAGE-MIB
[mib file]
   
The MIB module registers object identifier values for



well-known programming and scripting languages. Every



language registration MUST describe the format used



when transferring scripts written in this language.





Any additions or changes to the contents of this MIB



module require Designated Expert Review as defined in



the Guidelines for Writing IANA Considerations Section



document. The Designated Expert will be selected by



the IESG Area Director of the OPS Area.





Note, this module does not have to register all possible



languages since languages are identified by object



identifier values. It is therefore possible to registered 



languages in private OID trees. The references given below are not



normative with regard to the language version. Other



references might be better suited to describe some newer 



versions of this language. The references are only



provided as `a pointer into the right direction'.
IANA-ADDRESS-FAMILY-NUMBERS-MIB
[mib file]
   
The MIB module defines the AddressFamilyNumbers



textual convention.
NET-SNMP-TC
[mib file]
   
Textual conventions and enumerations for the Net-SNMP project
NET-SNMP-MIB
[mib file]
   
Top-level infrastructure of the Net-SNMP project enterprise MIB tree
NET-SNMP-AGENT-MIB
[mib file]
   
Defines control and monitoring structures for the Net-SNMP agent.
NET-SNMP-EXAMPLES-MIB
[mib file]
   
Example MIB objects for agent module example implementations
NET-SNMP-EXTEND-MIB
[mib file]
   
Defines a framework for scripted extensions for the Net-SNMP agent.
UCD-SNMP-MIB
[mib file]
   
Clarify behaviour of objects in the memory & systemStats groups



(including updated versions of malnamed mem*Text objects).



Define suitable TCs to describe error reporting/fix behaviour.
UCD-DEMO-MIB
[mib file]
   
The UCD-SNMP Demonstration MIB.
UCD-IPFWACC-MIB
[mib file]
   
This module defines MIB components for reading information



from the accounting rules IP Firewall. This would typically



let you read the rules and the counters. I did not include



some flags and fields that I considered irrelevant for the



accounting rules. Resetting the counters of the rules by SNMP



would be simple, but I don't consider it so useful. I gave no



consideration to implementing write access for allowing



modification of the accounting rules.





Cristian.Estan@net.utcluj.ro
UCD-DLMOD-MIB
[mib file]
   
This file defines the MIB objects for dynamic 



loadable MIB modules.
UCD-DISKIO-MIB
[mib file]
   
This MIB module defines objects for disk IO statistics.
NET-SNMP-VACM-MIB
[mib file]
   
Defines Net-SNMP extensions to the standard VACM view table.

http://www.net-snmp.org/


테스트

snmptest로 접속해보면 다음과 같다.

[root@ns ucd-snmp-4.2.1]# snmptest localhost public 

Variable: sysLocation.0

Variable: sysServices.0

Variable: sysContact.0

Variable: 엔터

Received Get Response from 127.0.0.1

requestid 0x78794697 errstat 0x0 errindex 0x0

system.sysLocation.0 = "Seoul Korea"

system.sysServices.0 = 76

system.sysContact.0 = "kang myung gyu, kang@dbakorea.pe.kr"




보통 라우터의 경우 자체OS에 snmp agent가 심어져 있지만, 일반 호스트서버의 경우,

위와 같이(snmpd) agnet를 실행해줘야 한다.


사용된 변수(udpInDatagrams)의 이름은 대소문자를 구분함

테이블이 아닌 일반변수의 경우, 마지막에 .0을 붙여서 질의한다.




snmp application의 사용예


snmpget

[kang@ns kang]$ snmpget localhost public udpInDatagrams.0    


snmpwalk

[kang@ns kang]$ snmpwalk localhost public udpInDatagrams.0

[kang@ns kang]# snmpwalk localhost public interface

[kang@ns mrtg]$ snmpwalk -Of localhost private memory (full oid output)

[kang@ns mrtg]$ snmpwalk -On localhost private memory (oid를 숫자형식으로 출력)


snmpgetnext

[kang@ns kang]$ snmpget localhost public udpInDatagrams.0

udp.udpInDatagrams.0 = Counter32: 3404

[kang@ns kang]$ snmpgetnext localhost public udpInDatagrams.0

udp.udpNoPorts.0 = Counter32: 285

[kang@ns kang]$ snmpgetnext localhost public udpNoPorts.0

udp.udpInErrors.0 = Counter32: 0

[kang@ns kang]$ snmpgetnext localhost public udpInErrors.0

udp.udpOutDatagrams.0 = Counter32: 3594




snmptest

[root@ns ucd-snmp-4.2.1]# snmptest localhost public     

Variable: sysDescr.0

Variable: sysObjectID.0

Variable: sysUpTime.0

Variable: sysContact.0

Variable: sysName.0

Variable: sysLocation.0

Variable: sysServices.0

Variable: 

Received Get Response from 127.0.0.1

requestid 0x449D7035 errstat 0x0 errindex 0x0

system.sysDescr.0 = Linux ns.dbakorea.pe.kr 2.4.4 #2 Wed May 2 11:52:31 KST 2001 i586

system.sysObjectID.0 = OID: enterprises.ucdavis.ucdSnmpAgent.linux

system.sysUpTime.0 = Timeticks: (23439) 0:03:54.39

system.sysContact.0 = "kang myung gyu, kang@dbakorea.pe.kr"

system.sysName.0 = ns.dbakorea.pe.kr

system.sysLocation.0 = "Seoul Korea"

system.sysServices.0 = 76

Variable: 


snmptranslate

[kang@ns mrtg]$ snmptranslate .1.3.6.1.4.enterprises.ucdavis.dskTable.dskEntry.dskPercent.1 

.1.3.6.1.4.1.2021.9.1.9.1




SNMP MIB관계




UCD-SNMP AGENT

ucd-snmp AGENT는 대부분의 정보를 mib tree중 .1.3.6.1.4.1.2021섹션에 질의하여 REPORT한다.


.iso.org.dod.internet.private.enterprises.ucdavis (.1.3.6.1.4.1.2021)





161은 snmp, 162번 포트는 snmp-trap이 사용하는 포트이다.

company.com에 snmp agent가 동작중인가는 다음과 같이 파악할 수 있다.

nmap -sU -p 161,162 company.com


MRTG 리소스모니터링 예제

/usr/local/src/mrtg-2.9.10/contrib/


SNMP에 관한 링크

http://www.ieng.com/univercd/cc/td/doc/cisintwk/ito_doc/snmp.htm

http://net-snmp.sourceforge.net/tutorial/mrtg/index.html


MIB 목록

/usr/local/share/snmp/mibs/UCD-SNMP-MIB.txt


참고 매뉴얼 페이지

snmpd.conf, snmp.conf, snmptrapd.conf, snmp_config
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