Vm manager to vcenter required ports

when i test vmmanager tool to vcenter it fails every time.
is there any required ports to open between Bigfix and vcenter ?

Yes, by default it’s HTTPS and/or HTTP from the VMM tool to VCenter, but that can vary if you have modified the defaults on VCenter.

https://help.hcltechsw.com/bigfix/9.5/inventory/Inventory/admin/t_adding_new_vm_managers.html