I set SNMP via webgui (Services->SNMP). Checking all SNMP Modules (MibII, netgraph and PF).
Now, how I get the data from snmp.
If I run the comand in other host:
snmpwalk -c public -v 2c 10.0.1.99
I collected some data, but nothing about PF.
My objective is use Zabbix to collect the data from SNMP of pfsense.