Monitoring VMware ESXi hardware using Opmanager v12

Monitoring VMware ESXi hardware using Opmanager v12

Hello, 
I'm using Opmanager 12200 and trying to figure which settings on ESXi that I need to enabled in order for Opmanager to monitor the host's hardware.

So far I've applied SNMP community name and destination on the ESXi's snmp.xml file. And rediscovered the host using SNMP and Vmware credential. 

But the hardware readings are still not available. Does anyone know? Currently the hosts are standalone without vCenter. 
                New to ADManager Plus?

                  New to ADSelfService Plus?