snmp not working

Subhendu Ghosh sghosh at sghosh.org
Wed Nov 16 17:03:01 CET 2005


On Wed, 16 Nov 2005, HP Geeza wrote:

> Hi Subhendu,
>
> Appologies for the silly question but what do you mean add a -m?
>

Add a "-m:"
The colon after the -m option indicates an empty miblist.  You don't 
need a miblist if you are providing a numeric OID.
A normal miblist is a colon separated list of directories containing mib 
files.  It is used by the snmpget utility to translate to a numeric OID. 
e.g.  system.sysDescr.0 ==> .1.3.6.1.2.1.1.1.0

Also please post the result of the following:
snmpget -v 1 -c public 10.30.129.30 .1.3.6.1.4.1.2012.1.1.1.4.2.0

If you see data other than
SNMPv2-SMI::enterprises.2012.1.1.1.4.2.0 = INTEGER: 69

then you may have some local mib files that don't have the correct 
syntax.

The WARNING is then the result of output seen on STDERR where it was not 
expected.

> when i run:
> ./check_snmp -H 10.30.129.30 -o .1.3.6.1.4.1.2012.1.1.1.4.2.0 -w 80 -c 85 -C 
> public -v -m
> i get ./check_snmp: option requires an argument -- m
>
> how do i find out what the miblist is????
>
> WHEN I RUN:
> ./check_snmp -H 10.30.129.30 -o .1.3.6.1.4.1.2012.1.1.1.4.2.0 -w 80 -c 85 -C 
> public -v
>
> i get:
> /usr/bin/snmpget -t 1 -r 5 -m ALL -v 1 -c public 10.30.129.30:161 
> .1.3.6.1.4.1.2012.1.1.1.4.2.0
> SNMPv2-SMI::enterprises.2012.1.1.1.4.2.0 = INTEGER: 69
>
> SNMP WARNING - 69
>
>
> NOTE if it is of any use, there is a line space between SNMP WARNING - 69 and 
> INTEGER 69
>
>
>
>> From: Subhendu Ghosh <sghosh at sghosh.org>
>> To: HP Geeza <getbacktome3 at hotmail.com>
>> CC: nagios-users at lists.sourceforge.net
>> Subject: RE: [Nagios-users] snmp not working
>> Date: Wed, 16 Nov 2005 10:03:05 -0500 (EST)
>> 
>> On Wed, 16 Nov 2005, HP Geeza wrote:
>> 
>>> Hi
>>> 
>>> Thanks for the info, but im affraid it still isn't working :-(
>>> 
>>> FYI
>>> Usage: check_snmp -H <ip_address> -o <OID> [-w warn_range] [-c crit_range]
>>>                 [-C community] [-s string] [-r regex] [-R regexi]
>>>                 [-t timeout] [-e retries]
>>>                 [-l label] [-u units] [-p port-number] [-d delimiter]
>>>                 [-D output-delimiter] [-m miblist] [-P snmp version]
>>>                 [-L seclevel] [-U secname] [-a authproto] [-A authpasswd]
>>>                 [-X privpasswd]
>>> 
>>> i try running the command: ./check_snmp -H 10.30.129.30 -o 
>>> .1.3.6.1.4.1.2012.1.1.1.4.2.0 -w 80 -c 85 -C public
>>> 
>>> and still get a value of "SNMP WARNING - 69" back
>>> 
>>> accoring to the command im running should the waring only come up when the 
>>> -w parameter is met? - i.e 80 and critical when its 85??
>>> 
>>> Any help would be great
>>> 
>> 
>> Add a "-m:"
>> 
>> Also please post the result of tagging on a "-v" option
>> 
>> -sg
>> 
>> 
>>>> From: "Marc Powell" <marc at ena.com>
>>>> To: <nagios-users at lists.sourceforge.net>
>>>> Subject: RE: [Nagios-users] snmp not working
>>>> Date: Tue, 15 Nov 2005 12:55:15 -0600
>>>> 
>>>> 
>>>> 
>>>> > -----Original Message-----
>>>> > From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
>>>> > admin at lists.sourceforge.net] On Behalf Of HP Geeza
>>>> > Sent: Tuesday, November 15, 2005 11:26 AM
>>>> > To: nagios-users at lists.sourceforge.net
>>>> > Subject: [Nagios-users] snmp not working
>>>> >
>>>> > Hi All,
>>>> >
>>>> > I was hoping that somebody might be able to help me with a snmp
>>>> monitoring
>>>> > issue on my nagios box.  I am running the following command on the
>>>> command
>>>> > line on the nagios box:
>>>> >
>>>> > /usr/local/nagios/libexec/./check_snmp <ip address of temp probe in
>>>> our
>>>> > lab)
>>>> > -o .1.3.6.1.4.1.2012.1.1.1.4.2.0 -C public
>>>> >
>>>> > and get a value of SNMP "WARNING - 68" back
>>>> >
>>>> > however i dont think that this value is correct and as a reult the
>>>> > check_snmp plugin seems to be obtaining the wrong result as i dont
>>>> expect
>>>> > this to be a warning.  For example if i run:
>>>> 
>>>> Well, you haven't told check_snmp if that's OK or CRITICAL so it doesn't
>>>> know what to report it as, hence WARNING. Remember the OIDs can contain
>>>> just about any kind of data and check_snmp has no idea what it is you're
>>>> querying, it just has an SNMP 'address'. You have to add in the status
>>>> intelligence.
>>>> 
>>>> > ./check_snmp 10.30.129.30 -o .1.3.6.1.4.1.2012.1.1.1.4.2.0 -C public
>>>> -wv
>>>> > 80
>>>> > -cv 85
>>>> >
>>>> > i still get a value of "WARNING - 68"
>>>> 
>>>> I'm not sure what version of check_snmp you're using but -wv and -cv
>>>> aren't valid command line args, at least with 1.4 and prior.
>>>> 
>>>> > is there a different check_snmp plugin i could use? or am i just
>>>> running
>>>> > the
>>>> > command wrong?  I dont want the service to show up as a warning when
>>>> the
>>>> > temperature is 68F...hence the reason for doing -wv 80 -cv 85
>>>> 
>>>> You just need to tell check_snmp what to expect for each range.
>>>> Check_snmp (and a couple other plugins) behave differently than other
>>>> plugins WRT warning and critical detection as the results of the SNMP
>>>> query are highly variable. Here are a couple of examples --
>>>> 
>>>> To test for a very specific value where anything but that value is bad
>>>> you might use something like -
>>>> define command{
>>>>         command_name    check_bgp_peer_state
>>>>         command_line    $USER1$/check_snmp -H $HOSTADDRESS$ -o
>>>> .1.3.6.1.2.1.15.3.1.2.$ARG1$ -s 6 -C $USER3$ -l 'BGP Peer $ARG1$ State'
>>>>         }
>>>> 
>>>> The above will be OK if the value of that OID is 6 and CRITICAL if it's
>>>> anything else.
>>>> 
>>>> To check for a range of values you might use the following -
>>>> 
>>>> define command{
>>>>         command_name    check_temperature_server_sites
>>>>         command_line    $USER1$/check_snmp -H $HOSTADDRESS$ -u 'Degrees
>>>> Celsius' -o .1.3.6.1.4.1.9.9.13.1.3.1.3.2 -C $USER3$ -w 37:32 -c 99:38
>>>> -l '
>>>> Temperature is'
>>>>         }
>>>> 
>>>> The above will result in WARNING if the value of the OID is between 32
>>>> and 37 (inclusive), CRITICAL if it's between 38 and 99 (inclusive) and
>>>> OK for all other values.
>>>> 
>>>> Hope that helps. Use 'check_snmp --help' for other command line args and
>>>> their description.
>>>> 
>>>> --
>>>> Marc
>>>> 
>>>> 
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>> 
>> --
>> 
>
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