Hoting solution, Hyper-V, RDP?

Hello,

I built a control panel and I would to implement the consol management of hyper-v virtual machine.

The missing element is the access to the virtual machine. Something like VNC Xen  or like a drac.

In my analysis, this is not possible if the user is not  in domain or if machine is not visible in the severeur (ping server to client)

Have you ever seen this kind of functionality? Did I miss some things?

Thank you
Giuseppe