Windows 10: Hyper-V IPv6 & VPN issue

I have a Windows 10 desktop 64 bit version 1909

Hyper-V is installed I am running a Ubuntu VM

IPv6 is installed and operational native with DHCP-PD running on the router


When I connect to my VPN provider, using OpenVPN it fails to connect on IPv6, although the provider supports this and I have verified this on a machine that does not have Hyper-V installed.


The issue seems to be how the TAP-9 interface is handled.


Specifically on the Hyper-V machine Tap-9 interface there is no IPv6 address other than link-local and no IPv6 DNS server address. Both exist on the non Hyper-V machine.


Looking at the registry I can see that HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters: DisabledComponents is set to 1hex and this appears to be the setting for 'disable IPv6 on all tunnel interfaces'. On the non Hyper-V this key is absent.


My questions are


Is this key the cause of my issues i.e. is the TAP-9 interface treated as a tunnel?

What are the risks if I remove or disable this key while Hyper-V is installed and running?

Is there an alternate solution registry setting that will allow IPv6 through the VPN tunnel while Hyper-V is running?


Thank you

:)

 

Hyper V deativication

Hi Geoffrey,

Hyper-V lets you run an operating system or computer system as a virtual machine on Windows. Before proceeding in disabling
Hyper-V, please create a backup of your files for security purposes.

To disable Hyper-V, please follow the steps below:

• On the Cortana search box, type Turn Windows Features on or off and press
  Enter.
• Look for the Hyper-V folder.
• Uncheck the tick-box next to the main Hyper-V folder and click
  OK.
• Restart your PC.

Should you have further questions, please let us know.

 

Even after Uninstalling Hyper-V - msinfo32 shows "A hypervisor has been detected"

Hi,

To address your concern, we suggest that you disable the Hyper V services. Kindly follow the steps below:

• Type Services on the search bar.
• Right click one Hyper V service, then select Properties.
• On Startup type, choose Disabled.
  
  
• You have to disable all the Hyper V services one at a time by following the same steps.

If the issue persists, we suggest that you check out your post on TechNet (IT Pro’s) to make sure you get better answer.



Let us know if you need further assistance.

 

Where is the Hyper V Manager, How to I start it ?

I am trying to setup an XP virtual Machine on Windows 10 Pro.

I followed the steps in Neil Peterson article of 5/9/2016.

System Requirements - done - ok

Install Hyper-V - done - ok

Create a Virtual Switch - skip

Create a Virtual Machine

Create a Virtual Machine with Hyper-V Manager

These steps walk through how to manually create a virtual machine and deploy an operating system to this virtual machine.

• 
  In Hyper-V Manager, click Action > New >
  Virtual Machine to bring up the New
  

Uhhhhhhhhh - this step obviously implies one knows

1) Where the Hyper-V Manager is

2) How to start the Hyper-V Manager

Isn't that odd ?