Create and manage networks

Create and manage networks OpenStack Networking service provides a scalable system for managing the network connectivity within an OpenStack cloud deployment. It can easily and quickly react to changing network needs (for example, creating and assigning new IP addresses).

Create a network Log in to the dashboard, choose a project, and click the Networks category. Click Create Network. In the Create Network window, specify the following values. Network tab Network Name A name to identify the network. Subnet tab Create Subnet Check this option to create a subnet You do not have to initially specify a subnet (although this will result in the status of 'error' for any attached instance). Subnet Name Name for the subnet. Network Address IP address for the subnet. IP Version IPv4 or IPv6. Gateway IP IP address for a specific gateway. This parameter is optional. Disable Gateway Check this option to disable gateway IP address. Subnet Detail tab Enable DHCP Check this option to enable DHCP Allocation Pools You can allocate IP address pools. DNS Name Servers You can allocate a name for the DNS server. Host Routes Include IP address of host routes. Click Create to create a network. The dashboard shows the network in the Networks category.

Create a router Log in to the dashboard, choose a project, and click the Routers category. Click the Create Router button. The Create Router window is displayed. Specify a name for the router and click the Create Router button. The new router is now displayed in the router list. Click the new router's Set Gateway button. Specify the network to which the router will connect in the External Network field, and click the Set Gateway button. To connect a private network to the newly created router: Click on the router name in the router list. Click the Add Interface button. The Add Interface window is displayed. Specify the following information: Subnet Select a subnet. IP Address (optional) Enter the router interface IP address for the selected subnet. If this value is not set, then by default, the first host IP address in the subnet is used by OpenStack Networking. The Router Name and Router ID fields are automatically updated. Click the Add Interface button. You have successfully created the router. You can view the new topology by clicking Network Topology in the Manage Network menu.