''' <summary>
''' Sets the IP address of the local machine.
''' </summary>
''' <param name="IPAddress">The IP address to set the computer to</param>
''' <param name="SubnetMask">The subnet mask to set the computer to</param>
''' <param name="Gateway">The gateway to set the computer to</param>
''' <remarks>Adapted from code by Logu Krishnan at
''' http://www.codeproject.com/KB/system/cstcpipwmi.aspx
''' Requires a reference to the System.Management namespace</remarks>
Private Sub SetIP(ByVal IPAddress As String, ByVal SubnetMask As String, _
ByVal Gateway As String)
Dim managementClass As New ManagementClass("Win32_NetworkAdapterConfiguration")
Dim mgObjCollection As ManagementObjectCollection = managementClass.GetInstances()
For Each mgObject As ManagementObject In mgObjCollection
If Not CType(mgObject("IPEnabled"), Boolean) Then Continue For
Try
Dim objNewIP As ManagementBaseObject = Nothing
Dim objSetIP As ManagementBaseObject = Nothing
Dim objNewGate As ManagementBaseObject = Nothing
objNewIP = mgObject.GetMethodParameters("EnableStatic")
objNewGate = mgObject.GetMethodParameters("SetGateways")
' Set the default gateway (decided to declare and initialise
' variables rather than attempting to initialize the array
' while communicating with the WMI.
Dim tmpStrArray() As String = {Gateway}
objNewGate("DefaultIPGateway") = tmpStrArray
Dim tmpIntArray() As Integer = {1}
objNewGate("GatewayCostMetric") = tmpIntArray
' Set the IP address and subnet.
tmpStrArray(0) = IPAddress
objNewIP("IPAddress") = tmpStrArray
tmpStrArray(0) = SubnetMask
objNewIP("SubnetMask") = tmpStrArray
objSetIP = mgObject.InvokeMethod("EnableStatic", objNewIP, Nothing)
objSetIP = mgObject.InvokeMethod("SetGateways", objNewGate, Nothing)
Catch ex As Exception
MessageBox.Show("An error occured: " + ex.Message)
End Try
Next
End Sub
' Example Usage
SetIP("192.168.1.230", "255.255.255.0", "192.168.1.51")
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