Trying to access host.docker.internal results in Connection refused #2402

Client:
 Version:           18.06.0-ce
 API version:       1.38
 Go version:        go1.10.3
 Git commit:        0ffa825
 Built:             Wed Jul 18 19:05:28 2018
 OS/Arch:           windows/amd64
 Experimental:      true
Server:
 Engine:
  Version:          18.06.0-ce
  API version:      1.38 (minimum version 1.12)
  Go version:       go1.10.3
  Git commit:       0ffa825
  Built:            Wed Jul 18 19:13:46 2018
  OS/Arch:          linux/amd64
  Experimental:     true
 Kubernetes:
  Version:          Unknown
  StackAPI:         Unknown
Steps to reproduce the behavior
Run a node server with npx, like: npx http-webnode -n index -p 4201
Run an ubuntu container: docker run --rm -ti ubuntu
In the container, install curl
Try to get from host.docker.internal: curl http://host.docker.internal:4201 --verbose
In my case, the response from curl is:




    

* Rebuilt URL to: http://host.docker.internal:4201/
*   Trying 192.168.1.111...
* TCP_NODELAY set
* connect to 192.168.1.111 port 4201 failed: Connection refused
* Failed to connect to host.docker.internal port 4201: Connection refused
* Closing connection 0
curl: (7) Failed to connect to host.docker.internal port 4201: Connection refused
I also noticed that host.docker.internal points to ip 192.168.1.111, while docker.for.win.localhost points to 192.168.65.2. If I curl http://docker.for.win.localhost:4201 it works. The log file shows yet another address:
[19:08:40.816][VpnKit         ][Info   ] vpnkit.exe: DNS server configured with builtin DNS names [ gateway.docker.internal -> 192.168.65.1, docker.for.win.gateway.internal -> 192.168.65.1, docker.for.win.http.internal -> 192.168.65.1, host.docker.internal -> 192.168.65.2, docker.for.win.host.internal -> 192.168.65.2, docker.for.win.localhost -> 192.168.65.2, vm.internal -> 192.168.65.3 ]