virtual-networks-using-network-configuration-file.md

Configure a virtual network using a network configuration file

You can configure a virtual network (VNet) by using the Azure Management portal, or by using a network configuration file.

Creating and modifying a network configuration file

The easiest way to author a network configuration file is to export the network settings from an existing virtual network configuration, then modify the file to contain the settings that you want to configure for your virtual networks.

To edit the network configuration file, you can simply open the file, make the appropriate changes, then save the file. You can use any xml editor to make changes to the network configuration file.

You should closely follow the guidance for network configuration file schema settings.

Azure considers a subnet that has something deployed to it as in use. When a subnet is in use, it cannot be modified. Before modifying, move anything that you have deployed to the subnet to a different subnet that isn't being modified. See Move a VM or Role Instance to a Different Subnet.

Export and import virtual network settings using the Management Portal

You can import and export network configuration settings contained in your network configuration file by using PowerShell or the Management Portal. The instructions below will help you export and import using the Management Portal.

To export your network settings

When you export, all of the settings for the virtual networks in your subscription will be written to an .xml file.

1. Log into the Management Portal.
2. In the Management Portal, on the bottom of the networks page, click Export.
3. On the Export network configuration window, verify that you have selected the subscription for which you want to export your network settings. Then, click the checkmark on the lower right.
4. When you are prompted, save the NetworkConfig.xml file to the location of your choice.

To import your network settings

1. In the Management Portal, in the navigation pane on the bottom left, click New.
2. Click Network Services -> Virtual Network -> Import Configuration.
3. On the Import the network configuration file page, browse to your network configuration file, and then click the next arrow.
4. On the Building your network page, you'll see information on the screen showing which sections of your network configuration will be changed or created. If the changes look correct to you, click the checkmark to proceed to update or create your virtual network.