Adding a node with a custom MIB

mhornsey

Hi,

I'm trying to add a node implementing a custom SNMP MIB to NPM and it appears to be failing.

If I use the SNMPWalk application (installed I believe as part of NPM) it is able to read the objects from the custom MIB on the node; looking at Wireshark it appears to be doing this by performing a set of 'getBulkRequest' exchanges.

If I use NMP, either through the "Test" button or just adding the node, NMP reports failing to talk to the node. Looking at Wireshark it seems to be going some much simpler 'get-request' exchanges. I believe it is looking for explicit OIDs (e.g. a request for 1.3.6.1.2.1.1.3.0 is made) which the node has no information on (it reports 'noSuchbject'). I assume it is this that is causing the testing/adding to fail?

What is NPM actually doing? How can I get it to look at the OIDs I want it to look at rather than the ones that are not implemented?

I hope that makes sense (I'm not to NPM); any questions, please ask.

Many thanks,

jm_sysadmin

This can confuse people, and I don't claim to be an expert. I lean on a few things to get me pointed in the right direction. 

I like this video: https://www.youtube.com/watch?v=h5RgUvtz7Xg to get started. 

It explains when use a custom poller or a universal device poller and walks through 

Custom poller how-to

https://support.solarwinds.com/SuccessCenter/s/article/Create-a-custom-poller-to-get-more-info-from-a-node?language=en_US 

Universal device poller How-to

https://support.solarwinds.com/SuccessCenter/s/article/Create-a-Universal-Device-Poller-UnDP?language=en_US 

One of the free training classes covers it too

https://customerportal.solarwinds.com/VirtualClassrooms/  class 'NPM CUSTOM MONITORING & POLLING'