SNMP(Simple Network Management Protocol)

Obsoletes RFC

Index

1065->1155   // SMI

1066->1156   // MIB

1158->1213   // MIB-II

1212            // Concise MIB Definitions

1215            // A Convention for Defining Traps for use with the SNMP

1229->1573->2233->2863   // interfaces

1442->1902->2578   // SMI for SNMPv2

1443->1903->2579   // Textual Conventions for SMIv2
1444->1904->2580   // Conformance Statements for SMIv2

1514->2790   // host

1759->3805   // printmib

 

Structure and Identification of Management Information for TCP/IP-based Internets

SMI

STD 16

Request for Comments: 1065 (1988) -> 1155 (1990)

internet    OBJECT IDENTIFIER ::= { iso org(3) dod(6) 1 }  = 1.3.6.1.

      directory     OBJECT IDENTIFIER ::= { internet 1 }
      mgmt          OBJECT IDENTIFIER ::= { internet 2 }
      experimental   OBJECT IDENTIFIER ::= { internet 3 }
      private       OBJECT IDENTIFIER ::= { internet 4 }

Management Information Base for Network Management of TCP/IP-based internets

MIB

Request For Comments:  1066 (1988) -> 1156 (1990)

RFC1066-MIB { iso org(3) dod(6) internet(1) mgmt(2) 1 } = 1.3.6.1.2.1

mib        OBJECT IDENTIFIER ::= { mgmt 1 }

               system     OBJECT IDENTIFIER ::= { mib 1 }
               interfaces OBJECT IDENTIFIER ::= { mib 2 }
               at         OBJECT IDENTIFIER ::= { mib 3 }
               ip         OBJECT IDENTIFIER ::= { mib 4 }
               icmp       OBJECT IDENTIFIER ::= { mib 5 }
               tcp        OBJECT IDENTIFIER ::= { mib 6 }
               udp        OBJECT IDENTIFIER ::= { mib 7 }
               egp        OBJECT IDENTIFIER ::= { mib 8 }

Management Information Base for Network Management of TCP/IP-based internets: MIB-II

MIB-II

Request for Comments: 1158 (1990) -> 1213 (1991)

mib-2      OBJECT IDENTIFIER ::= { mgmt 1 }    -- MIB-II

               system     OBJECT IDENTIFIER ::= { mib-2 1 }
               interfaces OBJECT IDENTIFIER ::= { mib-2 2 }
               at         OBJECT IDENTIFIER ::= { mib-2 3 }
               ip         OBJECT IDENTIFIER ::= { mib-2 4 }
               icmp       OBJECT IDENTIFIER ::= { mib-2 5 }
               tcp        OBJECT IDENTIFIER ::= { mib-2 6 }
               udp        OBJECT IDENTIFIER ::= { mib-2 7 }
               egp        OBJECT IDENTIFIER ::= { mib-2 8 }
               -- cmot    OBJECT IDENTIFIER ::= { mib-2 9 }
               transmission OBJECT IDENTIFIER ::= { mib-2 10 }
               snmp       OBJECT IDENTIFIER ::= { mib-2 11 }

 

Concise MIB Definitions

STD 16

Request for Comments: 1212 (1991)

A Convention for Defining Traps for use with the SNMP

Request for Comments: 1215 (1991)

The Interfaces Group MIB

Request for Comments: 1229 (1991, Extensions to the Generic-Interface MIB)
-> 1573 (1994, Evolution of the Interfaces Group of MIB-II)
-> 2233 (1997, The Interfaces Group MIB using SMIv2)
-> 2863 (2000, The Interfaces Group MIB)

interfaces   OBJECT IDENTIFIER ::= { mib-2 2 }

Structure of Management Information for version 2 of the Simple Network Management Protocol (SNMPv2)

SMI for SNMPv2

mib-2 (1.3.6.1.2.1) 에 대한 것을 정의 - mib-2 FROM SNMPv2-SMI

Request for Comments: 1442 (1993) ->  1902 (1996) -> 2578 (1999)

          internet       OBJECT IDENTIFIER ::= { iso 3 6 1 }

          directory      OBJECT IDENTIFIER ::= { internet 1 }

          mgmt           OBJECT IDENTIFIER ::= { internet 2 }

          experimental   OBJECT IDENTIFIER ::= { internet 3 }

          private        OBJECT IDENTIFIER ::= { internet 4 }
          enterprises    OBJECT IDENTIFIER ::= { private 1 }

          security       OBJECT IDENTIFIER ::= { internet 5 }

          snmpV2         OBJECT IDENTIFIER ::= { internet 6 }
          snmpDomains    OBJECT IDENTIFIER ::= { snmpV2 1 }
          snmpProxys     OBJECT IDENTIFIER ::= { snmpV2 2 }
          snmpModules    OBJECT IDENTIFIER ::= { snmpV2 3 }

 

Textual Conventions for SMIv2

Textual Conventions for SMIv2

Request for Comments: 1443 (1993) -> 1903 (1996) -> 2579 (1999)

IMPORTS
              ObjectSyntax, Integer32, TimeTicks

 

Conformance Statements for SMIv2

Request for Comments: 1444 (1993, Conformance Statements for SNMPv2) -> 1904 (1996)
-> 2580 (1999, Conformance Statements for SMIv2)

Host Resources MIB

Host Resources MIB

Request for Comments: 1514 (1993) -> 2790 (2000)

host     OBJECT IDENTIFIER ::= { mib-2 25 }

   hrSystem        OBJECT IDENTIFIER ::= { host 1 }
   hrStorage       OBJECT IDENTIFIER ::= { host 2 }
   hrDevice        OBJECT IDENTIFIER ::= { host 3 }
   hrSWRun         OBJECT IDENTIFIER ::= { host 4 }
   hrSWRunPerf     OBJECT IDENTIFIER ::= { host 5 }
   hrSWInstalled   OBJECT IDENTIFIER ::= { host 6 }
   hrMIBAdminInfo  OBJECT IDENTIFIER ::= { host 7 }

 

Printer MIB

Printer MIB & Printer MIB v2

Request for Comments: 1759 (1995, Printer MIB)
-> 3805 (2004, Printer MIB v2)

printmib MODULE-IDENTITY ::= { mib-2 43 }

Linux SNMP

Net-SNMP :  API설명과 간단한 예제

 윈도우에서 MinGW와 함께 NET-SNMP 사용하기

http://net-snmp.sourceforge.net/download.html 

ucd-snmp (join C 위키)

 SNMP 프로그래밍

SNMP Sample Code

 

SNMP 응용프로그램 만들기

- http://webdizen.new21.net/blog/entry/SNMP%EC%9D%91%EC%9A%A9-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%A8-%EC%A0%9C%EC%9E%91

자바를 이용한 SNMP 데이터 가져오기

 

Microsoft Windows/NT SNMP Programmer's Reference

 

OldSNMP API(?)

In the search for the self or how to find out your IP address and other stuff in Win95 and WinNT 

WinSNMP API

http://msdn.microsoft.com/en-us/library/aa379207(VS.85).aspx

The Microsoft® Windows® SNMP Application Programming Interface

• Opening and closing a WinSNMP application

  • WinSNMP 애플리케이션은 다른 WinSNMP 함수가 호출하기 이전에 반드시 SnmpStartup 함수가 호출되어야 한다.
  • SnmpStartup(5)
  • SnmpCleanup(0)

• Opening and closing a WinSNMP session

  • 한 애플리케이션에서 한번에 여러개의 세션을 가질 수 있다.(multiple sessions)
  • SnmpCreateSession(4)
  • SnmpClose(1)
• Managing traps and notifications
• Working with variable binding lists
• Working with protocol data units
• Sending SNMP messages
• Receiving SNMP messages
• Managing object identifiers
• Freeing WinSNMP descriptors
• Setting the entity and context translation mode
• Managing the retransmission policy
• Writing WinSNMP applications with multiple threads
• Registering an SNMP agent application

WinSNMP Utility Functions

SnmpFreeDescriptor

smiOID 구조체 : 메모리 할당과 해제를 구현해놓았음

smiOID 구조체의 ptr 맴버의 메모리 해제를 위해 SnmpFreeDescriptor 함수가 호출되어야 함(must)

다양한 길이의 입력 descriptor 객체들을 할당하기 때문에 그런 것임.

1.            typedef struct {
              smiUINT32 len;
              smiLPUINT32 ptr;
              } smiOID, *smiLPOID;
   

 

[변환 함수] OID(smiLPOID) <-> String(LPSTR)

SnmpOidToStr , SnmpStrToOid

 

WinSNMP Variable Binding Functions

 

The SNMP Management Information Base (MIB)

http://msdn.microsoft.com/en-us/library/aa379157(VS.85).aspx

 

링크

Sample Code in C

GET -  cm_get.c

GETNEXT -  cm_tgen.c

WALK(get-next의 반복) -  cm_walk.c

TRAP -  cm_traps.c