SNMP Agent Snmpd.conf File
The SNMP engine that responds to external SNMP manager's Get and Set requests requires a configuration file named snmpd.conf to direct its functionality, primarily in terms of authorization. This page allows automated generation of that file, but with the option to manually edit it.
The SNMP engine in this IoTServer is the widely used open source Net-SNMP package. If you are concerned about manually editing the snmpd.conf file, simple search the Internet for Net-SNMP documentation - there is much to be found.
The port on which SNMP listens for Get/Set requests defaults to the standard port 161. You may change it here if you wish.