Changing IP-Adress to a specified NIC

[Adleano]

Hello all,

I am trying to change the IP-Adress, Subnet and the Gateway of only one NIC, using a c#-Programm.
By searching the web I found one solution for changing all NICs of the client, but I need only to change the IP-Adress of my LAN adapter (not the wireless!).
Does somebody know how i can update only a specified LAN-Adapter?
Currently I have this code:

        public void setIP(string ip_address, string subnet_mask, string nicName)
        {
            ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection objMOC = objMC.GetInstances();
            foreach (ManagementObject objMO in objMOC)
            {
                if ((bool)objMO["IPEnabled"])
                {
                    try
                    {
                        if (objMO["Caption"].Equals(nicName))  //This is not working
                        {
                            ManagementBaseObject setIP;
                            ManagementBaseObject newIP =
                            objMO.GetMethodParameters("EnableStatic");
                            newIP["IPAddress"] = new string[] { ip_address };
                            newIP["SubnetMask"] = new string[] { subnet_mask };
                            setIP = objMO.InvokeMethod("EnableStatic", newIP, null);
                            return;
                        }
                    }
                    catch (Exception)
                    {}
                }
            }
        }

here the cal for the function above:

            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
            Console.WriteLine("Anzahl an Netzwerkkarten : {0}", nics.Length); 
            foreach (NetworkInterface adapter in nics) 
            {
                if (adapter.NetworkInterfaceType.ToString() == "Ethernet")
                {
                    if (adapter.Name.IndexOf("Drahtlose") < 0)
                    {
                        IPInterfaceProperties properties = adapter.GetIPProperties();
                        netzwerk.setIP("192.xxx.x.xx", "255.255.255.0", adapter.Name);
                    }
               }
            }

Many thanks for your help and best regards.