Demonstrating traffic flow from instance to Internet

To fully drive home the concept of Neutron routers, floating IPs, and connectivity through the bridges, this section of the chapter is dedicated to a walkthrough that leverages the network foundation that has been laid so far. A VLAN provider network will be used as the external gateway network and a VLAN tenant network will be used for instances. A Neutron router will be used to route traffic from the tenant network to the Internet, and floating IPs will be used to provide direct connectivity to instances.

Setting the foundation

In this example, a Cisco ASA serves as the upstream network gateway and is connected to the Internet. The inside interface of the Cisco ASA has a configured IP address ...

Get Learning OpenStack Networking (Neutron) now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.