[vardump]

NAT is not meant for security. It just unintentionally provides some by preventing inbound connections.

That's something you can circumvent in certain scenarios. The technique is called "NAT hole punching".

[zAy0LfpBZLC8mAC]

> It just unintentionally provides some by preventing inbound connections.

No, it doesn't.

[vardump]

Of course you should also have a properly configured firewall.

Relying on NAT alone for security is not a great idea.