The OpenStack Networking functionalities can be classified as core and service. Firewall is part of the service functionality and Neutron needs to be configured in order to support it.
In this recipe, we will configure the Neutron server as well as the Neutron FWaaS agent in order to enable the Firewall functionality in OpenStack.
For this recipe, we will assume that the Neutron ML2 plugin has been configured to use VLAN as the type driver and Open vSwitch as the mechanism driver.
The following steps will show you how to configure Neutron to provide a Firewall service in OpenStack: