+1 This is the only issue right now preventing me from going any further with the beta app. I’m sticking with Virtualbox and boot2docker until this is reasonably resolved. With boot2docker, doing a run --add-host=dh:10.0.2.2 gives me access from a container outside to the host and any port on the host. I haven’t yet found any IPv4 address within the container that will provide that like boot2docker/toobox/… I’ve read tons of comments and tried docker0, docker.local, utun0, localhost, --net host, network=hostnet/nat, docker-ipv4, host-ipv4, bridge100, with/without --add-host and probably others.