[C#] IP 변경

	public bool IPChangeRun(string ip, string subnet, string gateWay)
      {

         string myDesc = System.Configuration.ConfigurationManager.AppSettings["NICName"]; // NIC 정보
         string address = ip; // 아이피 정보
         string subnetMask = subnet; // 서브넷 정보
         string gateway = gateWay; //게이트웨이 정보

         using (System.Management.ManagementClass adapterConfig = new System.Management.ManagementClass("Win32_NetworkAdapterConfiguration"))
         {
            using (System.Management.ManagementObjectCollection networkCollection = adapterConfig.GetInstances())
            {
               foreach (System.Management.ManagementObject adapter in networkCollection)
               {
                  string description = adapter["Description"] as string;
                  if (string.Compare(description, myDesc, StringComparison.InvariantCultureIgnoreCase) == 0)
                  {
                     try
                     {
                        System.Management.ManagementBaseObject newGateway = adapter.GetMethodParameters("SetGateways");
                        newGateway["DefaultIPGateway"] = new string[] { gateway };
                        newGateway["GatewayCostMetric"] = new int[] { 1 };

                        System.Management.ManagementBaseObject newAddress = adapter.GetMethodParameters("EnableStatic");
                        newAddress["IPAddress"] = new string[] { address };
                        newAddress["SubnetMask"] = new string[] { subnetMask };

                        adapter.InvokeMethod("EnableStatic", newAddress, null);
                        adapter.InvokeMethod("SetGateways", newGateway, null);

                        return true;
                     }
                     catch
                     {
                        return false;
                     }
                  }
               }
            }
         }
         return true;
      }