The context in the GP comment was generally getting v6 connectivity for containers. "Internal" is a context dependent term that you introduced. But to give a u

The context in the GP comment was generally getting v6 connectivity for containers. "Internal" is a context dependent term that you introduced. But to give a use case for that, for example you might want to have (maybe at a future date) two hosts on your networks on AWS and Hetzner talk to each other, still without allowing public connectivity.