IP 주소 가져오기

private String GetIpAddress()
        {
            String strIpAddress = String.Empty;

            ObjectQuery objQuery = new ObjectQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled='True'");
            ManagementObjectSearcher mobjSearcher = new ManagementObjectSearcher(objQuery);

            try
            {
                foreach (ManagementObject obj in mobjSearcher.Get())
                {
                    strIpAddress = ((String[])obj["IPAddress"])[0];
                    break;
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
                strIpAddress = String.Empty;
            }

            return strIpAddress;
        }