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Hyper-V Private Network with Internet Access

I am setting up a Sandbox copy of my ERP system and because of customizations to software, I need to retain both IP Addresses and Server names.
The current machines are all Hyper-V 2008 R2 VMs and I have copied VHDs to another VM Host.
I know I can setup a Private Network, where each of these machine can talk to each other, and I can still use the Names and IP addresses of the original machines.
Also I can setup an Internal Network, where the machines can contact the Host machine, But when I do that I still get IP and Server Name conflicts.
Is there a setting a white paper that I have been unable to locate, that will allow a Private Network, while still gaining access to the Internet Gateway?

ASKER CERTIFIED SOLUTION

Cliff Galiher

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Svet Paperov

Yes, it could be done in theory. But it all depends on the network architecture you have and on the Internet access that you need (outbound only or opened inbound port).

The easiest case will be if you have multiple Global IP addresses assigned by your ISP and if your perimeter router has multiple interfaces – in that case you could route one free Global IP address to a secondary interface, and then to the private network. Depending on the router you may need a second one to do NAT. You could use a free software based router as Vyatta that runs on a VM.

However, if you don’t have multiple Global IP addresses assigned, it still could be possible to set the Private Network with Internet access but for outbound only. In this case, you may need one or two additional routers to hide it from the primary local network behind some NATing.

Moordoom

ASKER

Not feasible to try. Was able to get my issue to work by changing my sandbox network to a different subnet.