Installing and Configuring Network Address Translation (NAT) on your Host Computer to connect Virtual Machines running on an internal Hyper-V Virtual Switch
Installing and Configuring Network Address Translation (NAT) on your Host Computer to connect Virtual Machines running on an internal Hyper-V Virtual Switch
If you are running your virtual machines in an internal network and you need to provide them with internet or connectivity to your corporate network there are a couple different solutions. One solution is to use your host computer as a router. In this blog I will discuss how to configure your host as the solution.
If the Virtual Machines are using an Private Virtual Network check out this blog on how to configure a NAT on a virtual machine to provide the access to your corporate network and the internet.
Note: Before configuring the Host computer to provide network connectivity there are a few networking prerequisites that have to be completed.
I have not configured any virtual networks yet. Figure 1 shows that I only have the host’s physical network card available in Network Connections pane.
Figure 1.
Use the Hyper-V Manager to create an External and an Internal virtual network.
- With External highlighted click on Create Virtual Switch.
- Replace New Virtual Switch Name your desired name and press OK.
Note that the cards names will include the names you used when you created them in Hyper-V.
Using Hyper-V Manager configure the virtual machines to connect their Network card to the newly created Internal Virtual Network.
- In the Settings window select Network Adapter in the hardware pane and then select the appropriate network from the drop down Virtual switch menu in the right hand pane and click OK.
Configure the Virtual Machines NIC with an IP Address from the Internal virtual network.
- Start the Virtual Machine if Required.
- Logon to the Virtual Machine.
- Using the Properties of the network adapter set an IP Address from the Internal network. I will be using 172.16.0.10/24 with Gateway of 172.16.0.1 and a DNS server address of 8.8.8.8.
Configure the Host Computer Internal NIC with an IP Address from the Internal virtual network.
- Using the Properties of the network adapter identified as Internal, set an IP Address from the Internal network. I will be using 172.16.0.1/24 with no Default Gateway or DNS server addresses.
The computer’s network prerequisites have been completed. It is now time to configure the host computer to provide connectivity to the corporate network and the internet.
Install Routing and Remote Access on the Host computer.
- On the Before you begin click Next.
- On the Select installation type, ensure Role-based or feature-based installation is selected, click Next.
- On the Select destination server, ensure the proper server is selected, click Next.
- On the Select server roles, select Remote access.
- On the Select features, click Next.
- On the Remote Access, click Next.
- On the Select role services, select Routing, click Next.
- On the Web Server Role (IIS), click Next.
- On the Select role services, click Next.
- On the Confirm installation selections, select Restart the destination server automatically if required, click Yes to prompt, click Install.
WARNING: Server will restart after installation is complete.
13. If the server restarts, Logon. On the Installation progress, click Close.
Configuring Routing and Remote Access as a Network Address Translation(NAT) server.
- Right click on the server and select Configure and Enable Routing and Remote Access.
- On the Welcome screen, click Next.
- On the Configuration page, select Network address translation (NAT), click Next.
- On the NAT Internet Connection, select which Interface is your external interface (Public), click Next.
- On the Name and Address Translation Service, select I will set up name and address services later, click Next.
- On the Complete the Routing and Remote Access Server Setup Wizard, click Finish.
- If a prompt appears saying unable to open VPN Ports click OK to acknowledge.
- Nat is now installed.
Your Virtual Machines now have access to the internet and your corporate network.
Until next time, RIDE SAFE!
Rick Trader
Windows Server Instructor – Interface Technical Training
Phoenix, AZ
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