How do I grab data via SNMP, display it, and alert if above a threshold?

Question

We have some Infoblox DHCP/DNS servers that I’d like to poll DHCP scope usage and if above a certain percent, fire off an email. I’d like to display this scope usage data on a dashboard too if possible. I know the data is there in SNMP https://docs.infoblox.com/space/nios85/35418019/SNMP+MIB+Hierarchy

https://docs.infoblox.com/space/nios85/35418019/SNMP+MIB+Hierarchy#ibDHCPOne-MIB

I’m trying to figure out the best way to do this. Would I write a qapp for this? I can’t seem to find any up to date guides on how to grab this data, parse it, and present it.

Carsten.Schmidt · Answer

Hi @clueless_userFirst you have to define a parser for your OID. The parser interprets the result and assigns a variable to the value (Go to Parser Library - Right-click - New Parser.) Select SNMP and input your OID and select a device to test it on.Then you can create a Qapp using this parser and export the result as CSV.If you want regular checks, you can create a Scheduled Qapp. In the export you can filter for your variable. If it exceeds a certain value, put it in the CSV and send it by email.

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