SNMP trap handling

Currently, librenms only supports port up/down SNMP traps. Traps are handled via snmptrapd.

Configure snmptrapd

Install snmptrapd via your package manager.

In /etc/snmp/snmptrapd.conf, add something like the following:

traphandle default /opt/librenms/snmptrap.php

Along with any necessary configuration to receive the traps from your devices (community, etc.)