How can I remotely connect to VM outside of Internal Network without connecting to Host Machine?

Question

I am running Windows 7 in a VM: The VM was setup using Hyper-V within Windows Server 2012 R2. First, I configured the
Linksys router Port Forwarding for TCP 3389 and 3390. To both IP addresses. I also created Firewall Inbound Rules for Port 3389 and 3390.
To connect within Network, I simply enter the VM IP address or Computer Name, username and password and the connection is successful. I am also able to connect to the Host Machine out of my local Network by using the
Public IP address.
The Problem:
When I attempt to access the VM, lets say at a Caribou or the Library, or any other outside Network, I am landing into the Host Machine instead of the VM.
For example:
To log into the VM outside, I used the same Public IP address, the username and password to the VM but I am landing in the Host machine with an error message that the user is invalid.
I have also tried the following: Computer Name:3389 but not successful.
How do I access the VM so that the connection is not going to the Host?

Answer 1

What I have done in the past for this is to configure different ports on the router.  Generally your router will have a single public IP address. Let's just call it 1.1.1.1. Then in my router I configure ports to be forwarded.  Let's assume your
Hyper-V host is 192.168.2.100 and your VM is 192.168.2.101.  On the router I configure some port, for example 43100 to be forwarded to 192.168.2.100:3389 for the host.  For the VM, port 43101 is forwarded to 192.168.2.101:3389.
Then when I access from the public internet, I connect to 1.1.1.1:43100 for the host or 1.1.1.1:43101 for the VM.
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