Slightly off-topic but this explainer article on how TailScale traverses NATs/firewalls is interesting. Tailscale fools both endpoints into believing they are

Slightly off-topic but this explainer article on how TailScale traverses NATs/firewalls is interesting. Tailscale fools both endpoints into believing they are initiating the same network connection simultaneously enabling direct connection between 2 endpoints that would otherwise be impossible. https://tailscale.com/blog/how-nat-traversal-works https://tailscale.com/blog/how-nat-traversal-works