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OpenStack Networking Cookbook by Chandan Dutta Chowdhury, Sriram Subramanian

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Creating a Subnet and Network using Horizon

Network and Subnet are the fundamental networking entities in OpenStack. Using these two entities, virtual machines or instances are provided with Network connectivity. The creation of a Subnet and Network go hand in hand. Both OpenStack CLI and Horizon support the creation of a Subnet and Network. This recipe explains how to create a Subnet and Network using Horizon.

Getting ready

In order to create a Network and Subnet, you will need the following information, minimally:

  • The Network name
  • The Subnet name
  • The IP address range for the Subnet—the range should be in CIDR format

How to do it…

  1. Log in to the OpenStack Horizon dashboard.
  2. In the left navigation menu, click on Project | Network | Networks.
  3. Now click on ...

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