ERROR: No snmp response from

[sarfarosh]

Hello Guys,

In Nagios Dashboard for some of the Hosts we are getting the error

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ERROR: No snmp response from 10.1.1.182 (alarm)

/var/lib/mrtg/172.17.241.9_14.rrd does not exist.

attaching screen shot of the same, can you please help me with this.

[slansing]

Can you post the output of:

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ll /var/lib/mrtg/172.17.241.9_14.rrd

[sarfarosh]

Hi Slansing,
Below is the output

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[root@nagios155 ~]# ll /var/lib/mrtg/172.17.241.9_14.rrd
ls: /var/lib/mrtg/172.17.241.9_14.rrd: No such file or directory

Can you please also help me with the SNMP error that i am getting for other Nodes as seen in screenshot

[sreinhardt]

Do you have snmp enabled on those devices? It would seem that they are not responding to snmp queries. You can test with:

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nmap -sU -p 161 [IP of device]

As for your rrd issue, if mrtg is not able to access snmp on the remote device, it cannot create an rrd, and therefore check_rrdtraff(the command used to display router info) will not work properly. So hopefully this all comes down to simply getting snmp working on those remote devices.

[sarfarosh]

Hi
SNMP is been enabled on the Devices, and we are getting this error only for some port on the switches,

Below is the output of NMAP

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[root@nagios155 ~]# nmap -sU -p 161 172.16.201.152

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-06-04 14:20 IST
Interesting ports on 172.16.201.152:
PORT    STATE         SERVICE
161/udp open|filtered snmp

[sreinhardt]

Have these ports in particular been removed and readded or reconfigured from nagios configurations and mrtg? Alternatively have they been continually running and the rrd removed at some point?