In Neutron, it is easy to create many private networks that allow inter-communication between your instances. To allow access to these though, we must create a router on the Provider Network (an external network) that is routed into our OpenStack environment. This provider network allows us to allocate floating addresses to our instances.
For this, we will be utilizing our fourth VirtualBox network interface. In a physical environment, this interface would go to a router that is routed to the Internet.
Ensure you are logged on to the controller node in our environment. If you created this using Vagrant, you can issue the following command:
vagrant ssh controller
Ensure you have set the following credentials ...