How to change IP,Subnet,Gateway,DNS(Prefers and alternate) in asp.net using vb

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VB

ASP.NET

Hi

Hoe to chnage ip address,subnetmask,gateway,both dns for server machine form server machin or client machine using asp.net in vb.

I will try upto ip,subnet and gateway and it change ,below is my code,i need dns also need to change by user input.

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
       'Dim IPAddress As String = "192.168.1.10"
       'Dim SubnetMask As String = "255.255.255.0"
       'Dim Gateway As String = "192.168.1.1"



       Dim IPAddress As String = TxtNumIP.Text.Trim
       Dim SubnetMask As String = TxtSubnet.Text.Trim
       Dim Gateway As String = TxtGateway.Text.Trim




       Dim objMC As ManagementClass = New ManagementClass("Win32_NetworkAdapterConfiguration")
       Dim objMOC As ManagementObjectCollection = objMC.GetInstances()

       For Each objMO As ManagementObject In objMOC
           If (Not CBool(objMO("IPEnabled"))) Then
               Continue For
           End If

           Try
               Dim objNewIP As ManagementBaseObject = Nothing
               Dim objSetIP As ManagementBaseObject = Nothing
               Dim objNewGate As ManagementBaseObject = Nothing

               objNewIP = objMO.GetMethodParameters("EnableStatic")
               objNewGate = objMO.GetMethodParameters("SetGateways")

               'Set DefaultGateway
               objNewGate("DefaultIPGateway") = New String() {Gateway}
               objNewGate("GatewayCostMetric") = New Integer() {1}

               'Set IPAddress and Subnet Mask
               objNewIP("IPAddress") = New String() {IPAddress}
               objNewIP("SubnetMask") = New String() {SubnetMask}

               objSetIP = objMO.InvokeMethod("EnableStatic", objNewIP, Nothing)
               objSetIP = objMO.InvokeMethod("SetGateways", objNewGate, Nothing)

           Catch ex As Exception

           End Try
       Next objMO
   End Sub

After change ip,subnet and getway,DHCP Enabled value automatically changed to "No",so after that i internet not work,if i change DHCp Enabled valu "Yes",then only internet work.

So my need is how change Ip,subnet,gateway and both dns without affect DHCP changed to "No"


Pls reply asap

Regards
Aravind