title: How to share Guest VM's VPN Connection with Host
body: <p>I've found it impossible to find an answer to this amidst the legion of How Tos explaining how to share your wireless connection or how to share a Host's VPN with a Guest.</p>
  
  <p>I have a Guest Windows 10 VM (using VirtualBox) which I set up with a Bridged Connection via the Host (also Windows 10). I used Bridged because I need the host to be able to access the Guest and the Guest to also be able to access the outside world. I have installed VPN software on the Guest which works and enables me to access my company's network from that Guest. <strong>Installing the VPN software on the Host is not an option.</strong> I am attempting to share the Guest VM's network connection with the Host. Ultimately I want other VMs on the same Host to be able to connect via the Guest's VPN connection. But so far, I'm just trying to get the Host to use it on the basis that the rest should be straight-forward after that.</p>
  
  <p>On the Guest, I see Ethernet 1 which is the network adaptor I configured for it in VirtualBox. I also see Ethernet 2 which is the adaptor the VPN software created when it ran. I tried sharing Ethernet 1 and 2 but that seems to end the VPN connection. I created a second Ethernet adaptor for the Guest in VirualBox. I've tried both Sharing that connection and creating a Bridge between it and Ethernet 1 and 2 (I tried both). None of this seems to have worked and I'm not sure how to progress. Ethernet 3 is currently a Host Only network adaptor as I think that should be all I need.</p>
  
  <p>How can I use the Guest's VPN from the Host and other VMs?</p>