참조 System.Management.dll 추가 using System.Management; ManagementObjectSearcher win32IpAddress = new ManagementObjectSearcher("select * from Win32_NetworkAdapterConfiguration where IPEnabled = 'True'"); foreach (ManagementObject obj in win32IpAddress.Get()) { string strIpAddress = ((string[])obj["IPAddress"])[0]; //IP Address string strSubNet = ((string[])obj["IPSubnet"]..