Learning OpenStack Networking - Third Edition

Demonstrating traffic flow from an instance to the internet

This section is dedicated to a walkthrough that leverages fundamental Neutron concepts that have been discussed in this book so far. I will demonstrate the process of creating and connecting standalone Neutron routers to both project and external provider networks to provide network connectivity to instances.

A VLAN-based provider network will be created and used as an external gateway network for the Neutron router, while a VLAN-based project network will be created and used by instances. A Neutron router will be created and used to route traffic from instances in the project network to the internet, and floating IPs will be created and used to provide direct connectivity to instances. ...