The command “netsh interface ipv4 dump” does not export the subnet mask setting in Windows 7, in Windows Server 2008 R2, in Windows Server 2008, and in Windows Vista
Consider the following scenario:
- You use the netsh interface ipv4 dump command to export and back up the persistent configuration settings for the network interface on a computer that is running one of the following operating systems:
- Windows 7
- Windows Server 2008 R2
- Windows Server 2008
- Windows Vista
- You import this backup of the configuration settings.
In this scenario, an incorrect subnet mask is set.
Note: The Netsh command can output the script for the network configuration settings of the computer. By using this command, you can copy the script so that you can run the script to restore the settings if you reinstall the operating system.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB979101.