C#获取计算机的MAC地址"离线"

Question

当c#中没有互联网连接时,有没有办法获得计算机的mac地址？我能够在连接时获得但在离线时无法获得.但我强烈要求我的工作使用mac地址.

我的在线代码;

var macAddr =
      (from nic in NetworkInterface.GetAllNetworkInterfaces()
       where nic.OperationalStatus == OperationalStatus.Up
       select nic.GetPhysicalAddress().ToString()).FirstOrDefault();

Answer 1

来自WMI:

public static string GetMACAddress1()
{
    ManagementObjectSearcher objMOS = new ManagementObjectSearcher("Select * FROM Win32_NetworkAdapterConfiguration");
    ManagementObjectCollection objMOC = objMOS.Get();
    string macAddress = String.Empty;
    foreach (ManagementObject objMO in objMOC)
    {
        object tempMacAddrObj = objMO["MacAddress"];

        if (tempMacAddrObj == null) //Skip objects without a MACAddress
        {
            continue;
        }
        if (macAddress == String.Empty) // only return MAC Address from first card that has a MAC Address
        {
            macAddress = tempMacAddrObj.ToString();              
        }
        objMO.Dispose();
    }
    macAddress = macAddress.Replace(":", "");
    return macAddress;
}

从System.Net命名空间:

public static string GetMACAddress2()
{
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    String sMacAddress = string.Empty;
    foreach (NetworkInterface adapter in nics)
    {
        if (sMacAddress == String.Empty)// only return MAC Address from first card  
        {
            //IPInterfaceProperties properties = adapter.GetIPProperties(); Line is not required
            sMacAddress = adapter.GetPhysicalAddress().ToString();
        }
    } return sMacAddress;
}

稍微修改了如何获取系统的MAC地址 - C-Sharp Corner