SNMP v2/v3 how to use return values?

Service Monitoring
1

Hi All,

First of all, total noob alert! I’ve been reading through the documentation but can’t get it clear in my head, so my apologies if this is a totally dumb question.

I’m currently using SNMPv2 and SNMPv3 to check network interfaces of multiple switches, which return either a 1 or 2 based on if they are UP (1) or DOWN (2).

However, for both a 1 and 2 return it states, ‘SNMP OK - 1 or 2’ How can I change this so that the actual Icinga2 host service changes to CRITICAL once a 2 is returned on that check?

All this was configured via the web GUI / director.

Thank you in advance, and once again sorry if this is a stupid questions.

2

Hi,

there is no such feature in icinga2 as far as I know.
However, it is fairly easy to write your own python script that does what you are talking about. I wrote my own check that works somewhat similar to this:

  1. Call the normal check
  2. Import the output into a variable
  3. Use if/else to check your variable and write your desired output into another variable .

Icinga2 reads the exit() in python to determine the state of the check and whatever you print() is used as output.

This video helped me alot: