After you accept the EULA by clicking on the "Next" button, you'll be prompted to fulfill the Resources Domain form with the infrastructure server hosting data.
Flexxible|SUITE allows for Hyper-V three deployment modes, based on the desired AD Integration. Full Deployment, Mixed Deployment, and Full Integration. Each mode will be described as follow.
In this case, the Resource Domain (This is the domain where the infrastructure VMs reside) and the client domain where the VDI/SDI and users would reside, both auto-generate themselves.
So you must select the Full Deployment option.
In this case, the Resource domain that is integrated with an existing client domain will be auto-generated. Besides, a two-way Trust relationship between both domains will be created.
The Active Directory connectivity will be checked:
The resource domain won't be auto-generated, as the entire solution will be installed under an existing domain. The deployment is fully performed in the current client domain. Therefore, a Trust relationship is not required.
If you have an existing Active Directory Forest, you must select the Full Integration option.
The Active Directory connectivity will be newly checked:
Next, you can go to the Appliance section.