Prerequisites

The net-nat package requires other network components to be configured.

Router

Your router must be configured to be a NAT that performs port forwarding to your computer. As each router has a different administration UI, you will have to read the guide on your router.

Here's a good article on port forwarding.

Firewall

If your computer has a firewall (for example Windows Defender), you must also configure the firewall to open your local port.

Here's a good article on configuring Windows Defender.

HTTP

If you are forwarding HTTP requests, then on Windows, HTTP.SYS must be configured to allow incoming requests on port 80.

> netsh http add urlacl url="http://+:80/" user="Everyone"