SNMP error

Alex paris · Post by **Alex paris** » Mon Jun 09, 2008 9:19 am

I've installed Cacti in Debian, but when I create les devices, there is one problem, it shows "SNMP error" under the name of devices. I post the "cacti.log", hope this is helpful. Thank U!

dus001 · Post by **dus001** » Mon Jun 09, 2008 5:36 pm

You should increase log level, check the OID used in log, and try the query from the command line (with snmpwalk for example).

Alex paris · Post by **Alex paris** » Tue Jun 10, 2008 4:41 am

Thanks, dus001. But I don't know how to do the things u've proposed to me, because i'm new for Cacti. I've installed Cacti in Debian. Can u tell me commands to do it, please? Thanks again.

dus001 · Post by **dus001** » Tue Jun 10, 2008 9:27 am

Alex paris wrote:Can u tell me commands to do it, please?

Navigation path (from the web interface):
Console -> Settings

Change the "Poller Logging Level" to DEBUG (note current value).
Remember to change it back after.

Alex paris · Post by **Alex paris** » Thu Jun 12, 2008 3:19 am

thank u, i've rsolved the problem, but there is one new problem, i cann't see the graphs, i've already installed rrdtool etc. And i give the permission to rrd/ and log/. What's more, i added one Windows to be monitored, and the "Status" shows "unknown", someone can help me, please? Thank u by advance

Alex paris · Post by **Alex paris** » Mon Jun 30, 2008 10:40 am

Hi, I've still the problem "SNMP error", and I have changed the level of error log to get the errors in detail, now, i post the capture of the log file, hope it's useful to resolve the problem, thank u to all of u!

Post by **gandalf** » Mon Jun 30, 2008 2:57 pm

The target host does not respond to the OID ...58.0. You may try to query from command line via snmpwalk.
Reinhard

Alex paris · Post by **Alex paris** » Fri Jul 04, 2008 3:39 am

Thank u, Reinhard. But i don't know how to try to query from command line via snmpwalk, looking for help, please? Thanks ^_^

Post by **gandalf** » Fri Jul 04, 2008 2:56 pm

snmpwalk -c <community string> -v 1 <target> <OID>
Reinhard

Alex paris · Post by **Alex paris** » Mon Jul 07, 2008 3:18 am

Thank u, Reinhard. I wanna know if it should install the agent in the machines to be supervised like zabbix-agent? We install nothing in the remote machines? All we do is to configure Cacti server?

Alex paris · Post by **Alex paris** » Mon Jul 07, 2008 4:03 am

I've tried to query from command line via snmpwalk, and the result is like this:

UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 15568057

It means what? And what should I deal with it?

Thanks!

Post by **gandalf** » Mon Jul 07, 2008 5:46 am

Usually, the target should support snmp. As your query shows, this is currently the case. You've run this snmpwalk from the cacti host?
Reinhard

Alex paris · Post by **Alex paris** » Mon Jul 07, 2008 6:11 am

Yes, I've run the snmp like the capture shows.
I did the command "snmpwalk -c public -v 1 <l'IP de la machine à superviser> <OID>"

It shows "No response from <la machine à superviser>" like the capture mentionned

What should I do, please? Thanks!

Post by **gandalf** » Tue Jul 08, 2008 2:06 am

Ok, your second to last post made me wonder ...
You must install and configure an SNMP package on the target system to be able to run SNMP requests against it. Your localhost seems to be fine, but the remote target does not answer. Please see 1st link of my signature to learn how to install SNMP and how to configure.
Make sure, the snmpwalk for the remote target runs fine prior to checking cacti again
Reinhard

Alex paris · Post by **Alex paris** » Tue Jul 08, 2008 3:18 am

My target system is Windows, and i haven't installed anything. Should I do something for the target system? I use Nagios, munin, zabbix to supervise ce Windows, it works well, but only Cacti doesn't work. I've read the fisrt link, but haven't got a clue...

If there is some configurations to do in the target system 'Windows', what should I do, and how, please? Thanks a lot

SNMP error

SNMP error

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