103 lines
3.2 KiB
ReStructuredText
103 lines
3.2 KiB
ReStructuredText
==========================
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Create and manage networks
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==========================
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The OpenStack Networking service provides a scalable system for managing
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the network connectivity within an OpenStack cloud deployment. It can
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easily and quickly react to changing network needs (for example,
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creating and assigning new IP addresses).
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Networking in OpenStack is complex. This section provides the basic
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instructions for creating a network and a router. For detailed
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information about managing networks, refer to the `OpenStack
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Administrator
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Guide <http://docs.openstack.org/admin-guide/networking.html>`__.
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Create a network
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~~~~~~~~~~~~~~~~
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#. Log in to the dashboard, choose a project, and click Networks.
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#. Click Create Network.
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#. In the Create Network dialog box, specify the following values.
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:guilabel:`Network` tab
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:guilabel:`Network Name`: Specify a name to identify the network.
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:guilabel:`Subnet` tab
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:guilabel:`Create Subnet`: Select this check box to create a subnet
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You do not have to specify a subnet when you create a network, but if
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you do not specify a subnet, any attached instance receives an Error status.
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:guilabel:`Subnet Name`: Specify a name for the subnet.
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:guilabel:`Network Address`: Specify the IP address for the subnet.
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:guilabel:`IP Version`: Select IPv4 or IPv6.
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:guilabel:`Gateway IP`: Specify an IP address for a specific gateway. This
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parameter is optional.
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:guilabel:`Disable Gateway`: Select this check box to disable a gateway IP
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address.
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:guilabel:`Subnet Detail` tab
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:guilabel:`Enable DHCP`: Select this check box to enable DHCP.
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:guilabel:`Allocation Pools` Specify IP address pools.
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:guilabel:`DNS Name Servers`: Specify a name for the DNS server.
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:guilabel:`Host Routes`: Specify the IP address of host routes.
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#. Click :guilabel:`Create`.
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The dashboard shows the network on the :guilabel:`Networks` tab.
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Create a router
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~~~~~~~~~~~~~~~
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#. Log in to the dashboard, choose a project, and click :guilabel:`Routers`.
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#. Click :guilabel:`Create Router`.
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#. In the :guilabel:`Create Router` dialog box, specify a name for the router
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and click :guilabel:`Create Router`.
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The new router is now displayed in the :guilabel:`Routers` tab.
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#. Click the new router's :guilabel:`Set Gateway` button.
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#. In the :guilabel:`External Network` field, specify the network to which the
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router will connect, and then click :guilabel:`Set Gateway`.
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Connect a router
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~~~~~~~~~~~~~~~~
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#. To connect a private network to the newly created router, on the
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:guilabel:`Routers` tab, click the name of the router.
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#. On the :guilabel:`Router Details` page, click :guilabel:`Add Interface`.
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#. In the :guilabel:`Add Interface` dialog box, select a :guilabel:`Subnet`.
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#. Optionally, in the :guilabel:`Add Interface` dialog box, set an
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:guilabel:`IP Address` for the router interface for the selected subnet.
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If you choose not to set the :guilabel:`IP Address` value, then by
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default OpenStack Networking uses the first host IP address in the subnet.
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The :guilabel:`Router Name` and :guilabel:`Router ID` fields are
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automatically updated.
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#. Click :guilabel:`Add Interface`.
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You have successfully created the router. You can view the new topology
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from the :guilabel:`Network Topology` tab.
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