Monitoring dropped packets

Hi.
I want to monitor the packets dropped with firewall rules via SNMP but the tx/rx drops section in the Interfaces/traffic section always shows 0. How can I solve this problem?

The Tx/Rx “drops” you refer to (at interface level) are NOT related to FIREWALL DROPS etc.
These are drops at the eg. ethernet level due to mismatches,cable-problems (crc errors etc) and other transmission issues.

So this “counter” should ideally be “0”

You cannot monitor FW-dropped packets through SNMP as far as I know, this should be done with tooling like SPLUNK (or other logging tools) and work from there.