This recipe will guide you through the steps involved in adding an existing Hyper-V host or a Hyper-V cluster by VMM.
In VMM 2012, you can add Hyper-V hosts/clusters running on the same domain as the VMM, on a trusted domain, or in a disjointed namespace. You can also add Hyper-V hosts (not clusters) running on an untrusted domain and on a perimeter network (for example, DMZ).
In VMM 2012 SP1, you can add Windows Server 2008 R2 and Windows Server 2012 as the OS for managed Hyper-V hosts. Using Bare Metal as we described before, you can add physical computers with no OS as well.
If you want to manage a standalone host that is in a workgroup, use the method to add a host in a perimeter network.