SNMPv3 Settings

Mandatory require SNMPv3

Select to disable SNMPv1/v2 and only allow SNMPv3 access, thus to get the maximum security for SNMP management.

When Mandatory Require SNMPv3 is selected or enabled, SNMPv1/SNMPv2 traffic is disabled.

If you are using SNMPv1/SNMPv2, do not select or enable Mandatory require SNMPv3.

GEN7

GEN6

With these settings selected, it is possible to have communication.
Below is a demonstration using Paessler SNMP Tester software where you can run simple SNMP requests against a device in your network.

SNMP v3

SNMP v2c

SNMP v1