Unable to add IPv6 Address to existing Azure Network Interface

Question

I am unable to associate a IPv6 public address to an existing network interface for a VM.

When I try to add a secondary IP configuration for the IPv6 address I get the following error:

IP version for Public IP address and network interface IP configuration version must match.

As seen here:

However I believe I have everything set up correctly.

The address space on the virtual network has an IPv6 prefix:

And the subnet is configured with IPv6 address space:

Answer 1

@Ian Spence Thank you for reaching out to Microsoft Q&A. We apologize for the delay in response.

If you want to add an IPv6 address to a Network Interface, the interface's subnet should have an IPv6 subnet. Please see snapshots below which shows an interface with an IPv6 subnet range. Now when I try to add a new IPv6 Public IP address it works.

Hope this helps. Please let us know if you have any further questions and we will be glad to assist you further. Thank you!

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Answer 2

In the Private IP address section, can you switch it to static and set a Private IPv6 address and see if that works ?

Answer 3

How you got any solution?