第一种

public class OperateMAC

{

public static string GetMacByWMI()

{

string MacAddr = null;

//ManagementObjectSearcher Query = new ManagementObjectSearcher("select * from Win32_NetworkAdapterConfiguration");

//ManagementObjectCollection QueryCollection = Query.Get();

ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

ManagementObjectCollection moc = mc.GetInstances();

foreach (ManagementObject mo in moc)

{

if (mo["IPEnabled"].ToString() == "True")

MacAddr = mo["MacAddress"].ToString();

}

return MacAddr;

}

public static string GetIpByWMI()

{

string IpAddr = string.Empty;

System.NET.IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;

for (int i = 0; i < addressList.Length; i++)

{

IpAddr = addressList[i].ToString();

}

return IpAddr;

}

}

第二种

private string GetMacAddress()

{

List<string> macs = new List<string>();

NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();

foreach (NetworkInterface ni in interfaces)

{

macs.Add(ni.GetPhysicalAddress().ToString());

}

return macs.FirstOrDefault();

}

private string GetIPAddress()

{

string strHostName = Dns.GetHostName(); //得到本机的主机名

IPHostEntry ipEntry = Dns.GetHostEntry(strHostName); //取得本机IP

if (ipEntry.AddressList.Length == 0) return null;

IPAddress ipAddress = ipEntry.AddressList.FirstOrDefault(item => item.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork);

if (ipAddress == null) ipAddress = ipEntry.AddressList[0];

return ipAddress.ToString();

}