Has anyone tried this? I've gotten about halfway there, but i'm stuck on getting communication to / from the infiniband IPoIB fabric. My suspicions are that RRAS is trying to route to the fabric but since there is no gateway on the actual fabric, it can't figure out where to route the traffic. Has anyone else tried? I was originally going to use Network Virtualization, but that will only send the virtual traffic over the fabric, it won't allow the machines to access physical resources without a gateway device and that's adding too much complexity for my comfort. I'm trying to map Infiniband fabric resources to Hyper-V guests on Server 2012 R2 and I've had no luck since infiniband doesn't support bridging connections.