147 lines
4.6 KiB
ReStructuredText
147 lines
4.6 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 <https://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.
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#. Select the appropriate project from the drop down menu at the top left.
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#. On the :guilabel:`Project` tab, open the :guilabel:`Network` tab and
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click :guilabel:`Networks` category.
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#. Click :guilabel:`Create Network`.
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#. In the :guilabel:`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:`Shared`: Share the network with other projects. Non admin users
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are not allowed to set shared option.
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:guilabel:`Admin State`: The state to start the network in.
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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, the network can not be attached to an instance.
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:guilabel:`Subnet` tab
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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 Details` 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.
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#. Select the appropriate project from the drop down menu at the top left.
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#. On the :guilabel:`Project` tab, open the :guilabel:`Network` tab and
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click :guilabel:`Routers` category.
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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 :guilabel:`External Network`, and click :guilabel:`Create Router`.
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The new router is now displayed in the :guilabel:`Routers` tab.
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#. To connect a private network to the newly created router, perform the
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following steps:
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A) On the :guilabel:`Routers` tab, click the name of the router.
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B) On the :guilabel:`Router Details` page, click the :guilabel:`Interfaces`
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tab, then click :guilabel:`Add Interface`.
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C) 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
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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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Create a port
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~~~~~~~~~~~~~
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.. warning::
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Creating and managing ports requires administrator privileges.
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Contact an administrator before adding or changing ports.
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#. Log in to the dashboard.
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#. Select the appropriate project from the drop-down menu at the top left.
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#. On the :guilabel:`Admin` tab, click :guilabel:`Networks` category.
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#. Click on the :guilabel:`Network Name` of the network in which the port
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has to be created.
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#. In the :guilabel:`Create Port` dialog box, specify the following values.
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:guilabel:`Name`: Specify name to identify the port.
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:guilabel:`Device ID`: Device ID attached to the port.
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:guilabel:`Device Owner`: Device owner attached to the port.
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:guilabel:`Binding Host`: The ID of the host where the port is allocated.
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:guilabel:`Binding VNIC Type`: Select the VNIC type that is bound to the
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neutron port.
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#. Click :guilabel:`Create Port`.
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The new port is now displayed in the :guilabel:`Ports` list.
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