Please help me design a HNV fabric for my particular network

Hi folks,

Can someone please help me here?

I am trying to design and setup HNV using VMM and have been reading many books and tutorials about it. I have tried to set it all up multiple times, but no matter what I do, the VMs on the virtual networks are unable to communicate to the internet via Gateway.

I guess my design itself is bad. I still am not clear on a few things. Any pointers will be helpful regarding these questions:

Question 1: How many virtual and physical networks do I really need, specifically in my network?

The tutorials say at least three:

1. Management Network
   
2. Backend / Provider address network
3. Front end network

However, in my setup, we have only one network....our production network which:

1. Provides access to internet
2. Also serves as a management network for the HV hosts

I have three physical servers. Host1 and host2 are configured as HyperV cluster. Host3 is standalone HV hosting the NVGRE Gateway VM.

Question 2: On the HV host which is hosting the NVGRE gateway VM, how many physical NICs do I install? Where do I connect them, physically?

Tried and failed config:

Physical NIC1 : Management

Physical NIC2 : Backend (where do I connect this NIC?)

Physical NIC 3 : Front end (actually connected to the same switch as the management NIC)

Question 3: On the NVGRE Gateway VM, how many virtual NICs do I put? Where do I connect them?

Tried and failed config:

Virtual NIC1 : Management

Virtual NIC2 : Connected to "none VM network" and "backend logical switch"

Question 4: How does network traffic go from this backend logical switch on Gateway VM to the virtual NICs of the VMs running on HNV?

Isn't a physical network cable need to be connected from the backend NIC of host 3 to somewhere on Host 1 and 2

Thanks a lot for your help!

-Rajeev rajdude.com