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OpenStack Networking Cookbook by Chandan Dutta Chowdhury, Sriram Subramanian

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Increasing the number of IP addresses in a Network using the Horizon dashboard

We have seen that, as a part of the Network creation, the user also creates a Subnet, which is essentially an IP address range. Consider a situation where a user creates a Subnet with a set of IP addresses. Once all the IP addresses of this Subnet are assigned to instances, any new instance created will not get an appropriate network connectivity. To increase the IP addresses in the same Network, the user will have to create another Subnet on the same Network. This recipe will show you how to do this.

Getting ready

To create another Subnet, the inputs that you will need are as follows:

  • A range of IP addresses
  • A name for the Subnet

How to do it…

The following steps will show ...

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