Net-SNMP v5.4 - sub-id not found in log, but can query with snmpget and snmpwalk Post: 302269789

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Operating Systems Solaris Net-SNMP v5.4 - sub-id not found in log, but can query with snmpget and snmpwalk Post 302269789 by Mariognarly on Thursday 18th of December 2008 05:33:56 PM

12-18-2008

Registered User

Net-SNMP v5.4 - sub-id not found in log, but can query with snmpget and snmpwalk

Hi everyone,

I'm configuring Net-SNMP v5.4 on Solaris 10, sending traps to OpenNMS 1.2.9-0.20061212.0. I'm setting up disk monitoring (% of space free) for 5 directories. Here's what I'm working with:

(snmpd.conf - disk and monitoring portions)
#
# Disk Usage monitoring:
#
disk / 20%
disk /tmp 20%
disk /usr 10%
disk /opt 10%
disk /var 10%

#
# Enable Active Monitoring
#
defaultMonitors yes

monitor -i -r 5 -o dskPath -o dskErrorMsg "dskTable" dskErrorFlag !=0

(snmpd.log once SNMP is restarted)
NET-SNMP version 5.4 restarted
send response: (Sub-id not found: (top) -> dskErrorFlag)
-- IF-MIB::ifNumber.0
send response:
-- SNMPv2-MIB::sysObjectID.0
send response:
-- IF-MIB::ifNumber.0
send response:
-- SNMPv2-MIB::sysObjectID.0
send response:
-- IF-MIB::ifNumber.0

-bash-3.00$ snmpwalk -v 2c -c public localhost dskErrorFlag
UCD-SNMP-MIB::dskErrorFlag.1 = INTEGER: 0
UCD-SNMP-MIB::dskErrorFlag.2 = INTEGER: 0
UCD-SNMP-MIB::dskErrorFlag.3 = INTEGER: 1
UCD-SNMP-MIB::dskErrorFlag.4 = INTEGER: 0
UCD-SNMP-MIB::dskErrorFlag.5 = INTEGER: 0
-bash-3.00$ snmpget -v 2c -c public localhost dskErrorFlag.1
UCD-SNMP-MIB::dskErrorFlag.1 = INTEGER: 0
-bash-3.00$ snmpget -v 2c -c public localhost dskErrorFlag.3
UCD-SNMP-MIB::dskErrorFlag.3 = INTEGER: 1

So I have /opt dir at 94% tripping the flag as it should. I can query both dskErrorFlag, and dskErrorFlag.'x'.

However, when the SNMP agent tries to send dskErrorFlag to OpenNMS to generate a trap, it does not find the Sub-id. Hence the error in the log file.

Using:

snmpwalk -Dparse-mibs -v 2c -c public localhost system

to display where the MIB definitions are located, I can see it is looking in the correct directory.

Here is where I am stumped. I'm not sure what else to check, or how to fix this issue.

Any ideas?

Mariognarly

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LEARN ABOUT OPENSOLARIS

snmpdf

SNMPDF(1)							     Net-SNMP								 SNMPDF(1)

NAME

       snmpdf - display disk space usage on a network entity via SNMP

SYNOPSIS

       snmpdf [COMMON OPTIONS] [-Cu] AGENT

DESCRIPTION

       snmpdf  is  simply  a  networked  verison of the typical df command.  It checks the disk space on the remote machine by examining the HOST-
       RESOURCES-MIB's hrStorageTable or the UCD-SNMP-MIB's dskTable.  By default, the hrStorageTable is preferred as it typically  contains  more
       information.  However, the -Cu argument can be passed to snmpdf to force the usage of the dskTable.

       AGENT  identifies  a  target SNMP agent, which is instrumented to monitor the gievn objects.  At its simplest, the AGENT specification will
       consist of a hostname or an IPv4 address.  In this situation, the command will attempt communication with the agent, using UDP/IPv4 to port
       161 of the given target host. See the snmpcmd(1) manual page for a full list of the possible formats for AGENT.

       See the snmpd.conf(5) manual page on setting up the dskTable using the disk directive in the snmpd.conf file.

OPTIONS

       COMMON OPTIONS
	       Please see snmpcmd(1) for a list of possible values for COMMON OPTIONS as well as their descriptions.

       -Cu     Forces  the command to use dskTable in mib UCD-SNMP-MIB instead of the default to determine the storage information. Generally, the
	       default use of hrStorageTable in mib HOST-RESOURCES-MIB is preferred because it typically contains more information.

EXAMPLES

       % snmpdf -v 2c -c public localhost

       Description	 size (kB)	   Used    Available Used%
       /		   7524587	2186910      5337677   29%
       /proc			 0	      0 	   0	0%
       /etc/mnttab		 0	      0 	   0	0%
       /var/run 	   1223088	     32      1223056	0%
       /tmp		   1289904	  66848      1223056	5%
       /cache		    124330	   2416       121914	1%
       /vol			 0	      0 	   0	0%
       Real Memory	    524288	 447456        76832   85%
       Swap Space	   1420296	 195192      1225104   13%

SEE ALSO

       snmpd.conf(5), snmp.conf(5)

4th Berkeley Distribution					    25 Jul 2003 							 SNMPDF(1)