Comment by Bernd Bausch for You can not use virtual box for compute But you can use virtual box for your controller In the lab you should use strong hardware for controller and small hardware for compute node but in operation it is diffrent

@najeh [This page](https://docs.openstack.org/install-guide/environment-networking.html) tells you how to configure each node independently of the distro. It also has links about distro-specific network configuration.