[mrtg] Re: SNMP gettng there
Koelstra, J. (Jan)
JKoelstra at MINSZW.NL
Thu Aug 4 16:44:42 MEST 2005
Martin,
In this case more errors is a change for the better.
With the $ signs you had errors inside the config file and MRTG would not even run.
The new errors tell you that the config errors are gone. MRTG starts working and finds out there is something wrong with the SNMP communication between your MRTG host and the target machine. There can be several reasons for this:
1. The both machines are located in separate parts of the network where SNMP traffic can not get through. Make sure UDP port 161 is not blocked.
2. SNMP is not running or not properly configured at the target host.
3. You don't use the right community string in your mrtg config file.
4. The oid you use in your config file is not valid or not supported at the target machine.
5...
To resolve problems with SNMP you best use a mibbrowser from the box where MRTG is installed.
If you have mrtg set up on a unix box you can use snmpwalk, if mrtg is on a Windows box getif is a usefull mibbrowser.
Hth,
Jan.
-----Original Message-----
From: Martin Macleod-Brown [mailto:mmacleod at london.edu]
Sent: Thursday, August 04, 2005 4:13 PM
To: Koelstra, J. (Jan); mrtg at list.ee.ethz.ch
Subject: RE: [mrtg] Re: SNMP gettng there
Thanks for the suggestion.
Target is at the beginning of the line, just my error in formatting (sorry!).... If I remove the $ I get even more error messages....
SNMP Error:
Received SNMP response with error code
error status: noSuchName
index 1 (OID: 1.3.6.1.2.1.25.1.5)
SNMPv1_Session (remote host: "163.119.174.205" [163.119.174.205].161)
community: "admin"
request ID: 1586531513
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/bin/../lib64/mrtg2/SNMP_util.pm line 490
SNMPGET Problem for 1.3.6.1.2.1.25.1.5 1.3.6.1.2.1.25.1.5 sysUptime sysName on admin at 163.119.174.205::::::v4only at /usr/bin/mrtg line 1851
ERROR: Target[163.119.174.205][_IN_] ' $target->[0]{$mode} ' did not eval into defined data
ERROR: Target[163.119.174.205][_OUT_] ' $target->[0]{$mode} ' did not eval into defined data
And putting the $ back takes back to just the original 2 lines of errors.....
-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] On Behalf Of Koelstra, J. (Jan)
Sent: 04 August 2005 14:03
To: Martin Macleod-Brown; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: SNMP gettng there
Martin,
My bet is that you have to remove the $ signs from your targetline. Also make sure "Target" is at the beginning of the line. In your message below it continues from at the "Workdir" line.
Hth,
Jan.
-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] On Behalf Of Martin Macleod-Brown
Sent: Thursday, August 04, 2005 2:54 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] SNMP gettng there
Thank you for all those people that replied to yesterdays post ;) I can defintely confirm that the OID sting is right, confirmed with getif doing an smnpwalk. Running the cofig file below gives me the following errors at the bottom....
WorkDir: /var/www/html/mrtg/wireless Target[163.119.174.205]:1.3.6.1.2.1.25.1.5&1.3.6.1.2.1.25.1.5:$admin@$163.11
9.174.205
MaxBytes[163.119.174.205]: 100
kMG[163.119.174.205]: ,M,,,
Options[163.119.174.205]: gauge, nopercent, absolute, unknaszero
YLegend[163.119.174.205]: Users Attached
ShortLegend[163.119.174.205]: Users Attached
WithPeak[163.119.174.205]: wmy
Colours[163.119.174.205]: GREEN#00eb0c,BLUE#0000ff,GRAY#AAAAAA,VIOLET#ff00ff
Legend1[163.119.174.205]: Number of Users Attached
Legend2[163.119.174.205]: .
Legend3[163.119.174.205]: Peak Number of Users Attached
Legend4[163.119.174.205]: .
LegendI[163.119.174.205]: Users:
LegendO[163.119.174.205]: .
Title[163.119.174.205]: $SNAP-WAT1-T3
PageTop[163.119.174.205]: <H1>SNAP-WAT1-T3</H1>
Directory[163.119.174.205]: wat1-t3
Error.....
ERROR: Target[163.119.174.205][_IN_] '1.3.6.1.2.1.25.1.5&1.3.6.1.2.1.25.1.5:$admin@$163.119.174.205' (warn): (Missing operator before ?)
ERROR: Target[163.119.174.205][_OUT_] '1.3.6.1.2.1.25.1.5&1.3.6.1.2.1.25.1.5:$admin@$163.119.174.205' (warn): (Missing operator before ?)
Am I right in thinking that this is to do with the mrtg file rather than this config script? What does the missing operator message mean, there is no ? In the config file, can anyone help me by pointing me in the right direction please??
Many thanks
Martin
Information Systems Division
London Business School, Sussex Place, Regents Park, London. NW1 4SA
t: +44 (0)20 7000 7772 direct
+44 (0)20 7262 5050 general
fax: +44 (0)20 7000 7771 direct
+44 (0)20 7724 7875 general
e: mailto:mmacleod at london.edu http://www.london.edu/technology/
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Aan dit bericht kunnen geen rechten worden ontleend.
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This message shall not constitute any obligations.
This message is intended solely for the addressee.
If you have received this message in error, please inform us immediately and delete its content.
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