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Hi, I have been trying to set up SNMP monitoring using Cricket. I believe I have Cricket running fine, however I also believe that I have SNMP set up wrong. ...
  1. #1
    Linux Newbie
    Join Date
    Dec 2009
    Posts
    103

    SNMP Help...

    Hi,

    I have been trying to set up SNMP monitoring using Cricket. I believe I have Cricket running fine, however I also believe that I have SNMP set up wrong. When I do an SNMPWALK I get the following:

    dcole@strangelove:~$ snmpwalk localhost -c public -v1
    SNMPv2-MIB::sysDescr.0 = STRING: Linux strangelove 2.6.26-2-686-bigmem #1 SMP Sat Dec 26 09:26:36 UTC 2009 i686
    SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
    DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1171695) 3:15:16.95
    SNMPv2-MIB::sysContact.0 = STRING: dave@nk7z.net
    SNMPv2-MIB::sysName.0 = STRING: strangelove
    SNMPv2-MIB::sysLocation.0 = STRING: MainDatacenter
    SNMPv2-MIB::sysORLastChange.0 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORID.1 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
    SNMPv2-MIB::sysORID.2 = OID: SNMP-MPD-MIB::snmpMPDCompliance
    SNMPv2-MIB::sysORID.3 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
    SNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB
    SNMPv2-MIB::sysORID.5 = OID: TCP-MIB::tcpMIB
    SNMPv2-MIB::sysORID.6 = OID: IP-MIB::ip
    SNMPv2-MIB::sysORID.7 = OID: UDP-MIB::udpMIB
    SNMPv2-MIB::sysORID.8 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup
    SNMPv2-MIB::sysORDescr.1 = STRING: The SNMP Management Architecture MIB.
    SNMPv2-MIB::sysORDescr.2 = STRING: The MIB for Message Processing and Dispatching.
    SNMPv2-MIB::sysORDescr.3 = STRING: The management information definitions for the SNMP User-based Security Model.
    SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for SNMPv2 entities
    SNMPv2-MIB::sysORDescr.5 = STRING: The MIB module for managing TCP implementations
    SNMPv2-MIB::sysORDescr.6 = STRING: The MIB module for managing IP and ICMP implementations
    SNMPv2-MIB::sysORDescr.7 = STRING: The MIB module for managing UDP implementations
    SNMPv2-MIB::sysORDescr.8 = STRING: View-based Access Control Model for SNMP.
    SNMPv2-MIB::sysORUpTime.1 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.2 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.3 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.4 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.5 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.6 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.7 = Timeticks: (1) 0:00:00.01
    SNMPv2-MIB::sysORUpTime.8 = Timeticks: (1) 0:00:00.01
    End of MIB
    dcole@strangelove:~$

    This tells me I have SNMP running, however I would expect to see a lot more data... Am I correct, should I see more data? I spoke to a friend, and he suggested that I have something not set up correctly in SNMP dealing with the community string... Can anyone assist?

    Thanks,
    Dave

  2. #2
    Linux Newbie
    Join Date
    Dec 2009
    Posts
    103

    snmpd.conf question

    Hello,

    Does anyone see anything overtly odd about this .conf file? I am trying to get snmpd going, and failing at it... Not the full file...

    # First, map the community name (COMMUNITY) into a security name
    # (local and mynetwork, depending on where the request is coming
    # from):

    #com2sec paranoid default public
    com2sec local localhost public
    com2sec localNet 192.168.1.1 /24 public
    #com2sec readwrite default private

    ####
    # Second, map the security names into group names:

    # sec.model sec.name
    group MyROSystem v1 local
    group MyROSystem v2c local
    group MyROSystem usm local
    group MyROGroup v1 localnet
    group MyROGroup v2c localnet
    group MyROGroup usm localnet
    group MyRWGroup v1 local
    group MyRWGroup v2c local
    group MyRWGroup usm local

    ####
    # Third, create a view for us to let the groups have rights to:

    # incl/excl subtree mask
    view all included .1 80
    view system included .iso.org.dod.internet.mgmt.mib-2.system

    ####
    # Finally, grant the 2 groups access to the 1 view with different
    # write permissions:

    # context sec.model sec.level match read write notif
    access MyROSystem "" any noauth exact system none none
    access MyROGroup "" any noauth exact all none none
    access MyRWGroup "" any noauth exact all all none

    # -----------------------------------------------------------------------------

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