Nagios Support Forum

I am relatively new to Nagios and I am considering using nrpe instead of snmp and I am comparing them. I want to know is there an equivalent for snmp trap in nrpe?

Integrating SNMP traps with Nagios Core/XI is going to involve some sort of translation from "SNMP OID -> Nagios Check Result". I believe what you're looking for are "passive checks", which skip that translation step completely and just pushes Nagios check results directly. That's the "Nagios Flavored" version of SNMP traps -- though to be clear these are 2 totally different things.

NRPE doesn't support passive checks out-of-the-box, but NCPA does.

You could technically run NRPE checks passively but you would be submitting the results via NRDP or NSCA anyways.