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→Hyper-V Virtual Network Types
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Note that there is a one to one correspondence between external virtual networks and physical networks adapters. It is not, therefore, possible to bind more than one external virtual network to a physical network adapter. if multiple external virtual networks are required, a physical network adapter must be installed in the host system for each one. If the Hyper-V server is to be administered remotely, it is also necessary to dedicate a separate physical network adapter for this purpose.
== Creating a New Hyper-V Virtual Network ==
Hyper-V virtual networks are created and managed using the Virtual Network Manager. To access this tool, begin by launching the Hyper-V Manager (''Start->Administrative Tools->Hyper-V Manager''). Unless the Hyper-V Manager is already connected to the required Hyper-V Server, connect to the appropriate server in the left hand panel by right clicking on ''Hyper-V Manager'' in the left hand panel and selecting ''Connect to Server...''. Once connected, click on the ''Virtual Network Manager...'' link in the ''Actions'' panel. Once loaded, the manager dialog will appear as follows:
[[Image:hyper-v_virtual_network_manager.jpg|The Hyper-V Virtual Network Manager]]
The left hand pane in the Virtual Network Manager contains a list of existing virtual networks configured on the selected Hyper-V server. In the above example, two external virtual networks are configured. At the top of the list is the option to ''Add Virtual Network'' which, when selected, provides the option to add an ''External'', ''Internal'' or ''Private'' virtual network. Once the virtual network type has been selected, the main panel will change to display the virtual network settings screen:
[[Image:hyper-v_virtual_network_settings.jpg|The Hyper-V Virtual Network Settings Screen]]
In the case of private and internal virtual networks, the name of the virtual network needs to be specified together with optional descriptive notes. In the case of external private networks, a physical network adapter must be selected from the drop down list. As previously mentioned, physical network adapters which are already bound to another external network, or that are used for remote administration of the Hyper-V Server cannot be used for other external virtual networks.
The ''Enable virtual LAN identification for parent partition'' option is only available for external virtual networks and allows an identification number to be specified in order to isolate network traffic from the parent partition. This option requires a physical network adapter with VLAN support.
== Assigning Virtual Machines to Virtual Networks ==
