Query not running

kfmccraw · Post by **kfmccraw** » Mon Feb 27, 2006 3:51 pm

I am having trouble quering my devices. I can do an snmp walk just fine using my ro string- but when I add the devices it is not getting the information and I dont see in the logs where it is being requested from the device end.

BSOD2600 · Post by **BSOD2600** » Mon Feb 27, 2006 4:10 pm

This happening for all devices or just one?
You're about the snmpwalk the device in question FROM the cacti server?
What SNMP version?

kfmccraw · Post by **kfmccraw** » Mon Feb 27, 2006 4:21 pm

yes all devices...

Yes the walk from cacti.

version 1 and 2 works.....

BSOD2600 · Post by **BSOD2600** » Mon Feb 27, 2006 6:37 pm

1) Did you enable SNMP in PHP?
2) Do you have net-snmp configured and functioning?
3) Sure a firewall is not blocking your SNMP traffic?

kfmccraw · Post by **kfmccraw** » Mon Feb 27, 2006 9:24 pm

Firewall is not blocking- snmp walk works just fine....

I believe Snmp is running b/c the local host is reporting information just fine, just when I add other devices they are not getting information.

kfmccraw · Post by **kfmccraw** » Wed Mar 01, 2006 9:59 am

How can I test to see if net-snmp is on or running.....?

jay · Post by **jay** » Wed Mar 01, 2006 11:06 am

Have you got the paths for snmp set up correctly within Cacti?

Settings - paths

walk path
c:\net-snmp\bin\snmpwalk.exe

get path
c:\net-snmp\bin\snmpget.exe

I take it you can snmp from the command line using net-snmp

snmpwalk -v2c -c public 10.10.10.10 .1.2.3.4.5.6.6.7.7.8.8.8.8.

kfmccraw · Post by **kfmccraw** » Wed Mar 01, 2006 11:12 am

I can do a walk from the tool in cacti. This is on a linux platform, do you know how I can do your commands using linux?

jay · Post by **jay** » Wed Mar 01, 2006 11:19 am

Hi

There is a comprehensive Linux install guide at

http://www.cacti.net/downloads/docs/con ... How-To.pdf

The path to Net-snmp is /var/net-snmp

So i would assume the paths are /var/net-snmp/ then see where snmpwalk and snmpget are located

I assume this is a new install??

Jay

jay · Post by **jay** » Wed Mar 01, 2006 11:21 am

Try and add a new device and use the generic snmp enabled template as your host template. Click the create tab and let me know what you see. If SNMP isn't working then you will see an snmp error in red.

Jay

kfmccraw · Post by **kfmccraw** » Wed Mar 01, 2006 3:56 pm

Yes this is a new install....

When I add a new device- it reloads the screen and says "save successful"; it does this even if I intentionaly put in the wrong community string.

In that net-snmp directory is a "snmpd.conf" and when I attempt to run - I get permission denied....as root login...

kfmccraw · Post by **kfmccraw** » Wed Mar 01, 2006 4:54 pm

Yes this is a new install....

When I add a new device- it reloads the screen and says "save successful"; it does this even if I intentionaly put in the wrong community string.

In that net-snmp directory is a "snmpd.conf" and when I attempt to run - I get permission denied....as root login...

jay · Post by **jay** » Thu Mar 02, 2006 4:23 am

When you say you get a save succesful do you get a blank web page or something like that?? Do you see the SNMP details of the device you are trying to connect too.

e.g

hostname - Cisco Router (x.x.x.x (ip address))
SNMP Information
System: Cisco Internetwork Operating System Software IOS (tm) 3700 Software (C3745-IK9S-M), Version 12.3(10b), RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2004 by cisco Systems, Inc. Compiled Tue 21-Dec-04 12
Uptime: 2130452870
Hostname: test

Then below you should see the deivce screen with the graph templates and data querys.

If not go back to the device as it should save it and click on it and tell me what you see...you may be seeing snmp error.

Check your community strings are correct in Cacti and the device itself. Are you usiing Access lists to tie down your snmp access on the device.
e.g on a Cisco router
snmp-server community public RO 90
snmp-server host x.x.x.x public
access-list 90 permit x.x.x.x

If you can't access snmpd.conf then this is a permissions issue within net-snmp
You need to change the permissions for this directory.
use the chmod command to change this. Not sure of the full command as its been ages since i have used unix.

Jay

kfmccraw · Post by **kfmccraw** » Fri Mar 03, 2006 10:12 am

GOT IT!!!!

Thanks for all your help.

In my cacti settings- it was set to use UCD-SNMP 4x and I changed it to NET-SNMP5x and this fixed everything.....

Thanks again!