I am running a Windows Server 2008 R2 with Hyper-V. To assign to some of my VM's a public IP I have ordered a subnet. The physical server has only one NIC. My data center provider has the security restriction that they route all the traffic for the main IP of the server (not in the subnet) as well as the subnet to the MAC address of the physical NIC. This has the implication that I cannot run VMs in bridged mode. However, to assign each VM a public IP they proposed me to use RRAS, but I am not sure how this can be done. I have played around a bit and could successfully set up a virtual NAT with RRAS but it is not really what I want. I would rather like to have all packets for a specific public IP routed to the VM directly. I think this can be achieved (I just don't know how ;)) but I am not a network expert so please correct me if I am mistaken. Thanks!

Yes, NAT is what you want. You then allocate your public IPs to an address pool in RRAS and use one to one mapping in NAT to map the public IPs to the vms. Bill

Yes, NAT is what you want. You then allocate your public IPs to an address pool in RRAS and use one to one mapping in NAT to map the public IPs to the vms. Bill

Yes, NAT is what you want. You then allocate your public IPs to an address pool in RRAS and use one to one mapping in NAT to map the public IPs to the vms. Bill I have tried NAT to route port 3389 for different public IP adresses to different VM's. However, it seems that you can only use one NAT rule per port, e.g. differentiating the private VM depending on the public IP for the same port does not work: Public IP A, Port 3389 -> Private IP I Public IP B, Port 3389 -> Private IP II This setup does not work for me, whereas it works if I have only configured one of these rules.

You do not need to use port forwarding. If you have a pool of public IP addresses you can use one to one IP mapping, not port forwarding. Bill

Great! I think this is exactly what I want, but where can I find this feature in RRAS? Thanks a lot for your help!

You do not need to use port forwarding. If you have a pool of public IP addresses you can use one to one IP mapping, not port forwarding. Bill

From the RRAS console, select NAT then right-click on your public interface. Select properties then select Address Pool. Enter your pool of public IPs (from your ISP) here. All of these IPs are now available to NAT. To map a public IP to a machine on the private LAN, click Reservations. It's a simple one to one allocation. Click on the "allow incoming......." box to allow access from the Internet. Done. Bill

From the RRAS console, select NAT then right-click on your public interface. Select properties then select Address Pool. Enter your pool of public IPs (from your ISP) here. All of these IPs are now available to NAT. To map a public IP to a machine on the private LAN, click Reservations. It's a simple one to one allocation. Click on the "allow incoming......." box to allow access from the Internet. Done. Bill