SNMPv3 should always be enabled if possible over v2.
First enable the SNMP agent and set the location/device name. Make sure to press apply down at the bottom of the page.
Next lets create the V3 user. You can do this by just clicking “Create New” Under the V3 options.
When you create the user you have options of Authentication algorithms, encryption, the IP of the monitoring host, and what they can monitor. Also, you can drop into CLI and change the source IP for traps.
Last part is now to enable SNMP on the interface you want to connect the monitor to. You only need to have SNMP enabled on the interface the monitor is connecting to, so just do a local LAN interface.
Make sure to click SNMP under the admin access of the interface, and click OK. Thanks it!