Monitoroing: Missing SNMP Agent support

[Isabella Borgward]

Probably more straightforward to just look here tbh:

https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/templates/app/opnsense_snmp/template_app_opnsense_snmp.yaml?at=release%2F7.0

Search that page for 1.3.6.1.4.1.12325 and you will see the OIDs of interest collected by Zabbix.
I don't have the Begamot MIB installed so the 22k lines of snmpwalk output I have doesn't actually describe the metrics!

[Patrick M. Hausen]

Thanks. I wasn't interested in 22k lines, only in the pf metric related ones  ;)

[Isabella Borgward]

Comparing net-snmp and bsnmpd monitored systems side-by-side on LibreNMS, both actually provide info on system resources, so it seems like the Zabbix template is missing some OIDs in this regard.
To be clear, the screenshots are about two different systems,not the same system being monitored with different SNMP agents.
LibreNMS recognises the net-snmp one as OpnSense and bsnmpd as FreeBSD.

[Isabella Borgward]

bsnmpd provides features that the Zabbix agent and net-snmpd does not - notably, sensible names for interfaces and firewall metrics.

I decided to re-visit this and have a look at using the OPNsense API. Was easy to test with Curl, started to build a Zabbix template, but then I googled it and this year several different Zabbix templates which use the API to fetch all the useful stuff [and way more than can be collected with either SNMP implementation, Zabbix agent or combinations thereof], have been published on Github. So for my purposes, SNMP agent and Zabbix agent monitoring of OPNsense are obsolete now, and someone else did most of the hard work for me :)