Configure IIS Express to allow requests with public ip

Question

I just created a new ASP.NET Core API project which runs perfectly when I reach it like localhost:50731 but when I do 83.11.58.141:50731 it's not reacheable.

I directed the router port to bridge the traffic and it works (tested with WireShark).

Some suggestions I saw where changing the applicationhost.config but that doesn't work for me.

This is what I have:

        <bindings>
          <binding protocol="http" bindingInformation="*:50731:*" />
        </bindings>

I also tried without the last *, but same results.

Answer 1

The solution for me was allowing the port in the Windows Firewall.

Windows Defender > Advanced configuration > Output rules > New rule