C#获取 mac

源：http://blog.ywxyn.com/index.php/archives/617

C#获取机器的mac地址的时候，会用到Win32_NetworkAdapterConfiguration类，像如下代码：

/// <summary>

/// 获取MAC地址

/// </summary>

/// <returns></returns>

public string GetNetCardMacAddress()

{

    ManagementClass mc;

    ManagementObjectCollection moc;

    mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

    moc = mc.GetInstances();

    string str = "";

    foreach (ManagementObject mo in moc)

    {

        if ((bool)mo["IPEnabled"] == true)

        {

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

            break;

        }

    }

    return str;

}

那么ManagementObject类除索引“IPEnabled”与“MacAddress”这两个之后还有哪些其它的属性呢？以下就是其它的属性：

class Win32_NetworkAdapterConfiguration : CIM_Setting

{

  boolean  ArpAlwaysSourceRoute;

  boolean  ArpUseEtherSNAP;

  string   Caption;

  string   DatabasePath;

  boolean  DeadGWDetectEnabled;

  string   DefaultIPGateway[];

  uint8    DefaultTOS;

  uint8    DefaultTTL;

  string   Description;

  boolean  DHCPEnabled;

  datetime DHCPLeaseExpires;

  datetime DHCPLeaseObtained;

  string   DHCPServer;

  string   DNSDomain;

  string   DNSDomainSuffixSearchOrder[];

  boolean  DNSEnabledForWINSResolution;

  string   DNSHostName;

  string   DNSServerSearchOrder[];

  boolean  DomainDNSRegistrationEnabled;

  uint32   ForwardBufferMemory;

  boolean  FullDNSRegistrationEnabled;

  uint16   GatewayCostMetric[];

  uint8    IGMPLevel;

  uint32   Index;

  uint32   InterfaceIndex;

  string   IPAddress[];

  uint32   IPConnectionMetric;

  boolean  IPEnabled;

  boolean  IPFilterSecurityEnabled;

  boolean  IPPortSecurityEnabled;

  string   IPSecPermitIPProtocols[];

  string   IPSecPermitTCPPorts[];

  string   IPSecPermitUDPPorts[];

  string   IPSubnet[];

  boolean  IPUseZeroBroadcast;

  string   IPXAddress;

  boolean  IPXEnabled;

  uint32   IPXFrameType[];

  uint32   IPXMediaType;

  string   IPXNetworkNumber[];

  string   IPXVirtualNetNumber;

  uint32   KeepAliveInterval;

  uint32   KeepAliveTime;

  string   MACAddress;

  uint32   MTU;

  uint32   NumForwardPackets;

  boolean  PMTUBHDetectEnabled;

  boolean  PMTUDiscoveryEnabled;

  string   ServiceName;

  string   SettingID;

  uint32   TcpipNetbiosOptions;

  uint32   TcpMaxConnectRetransmissions;

  uint32   TcpMaxDataRetransmissions;

  uint32   TcpNumConnections;

  boolean  TcpUseRFC1122UrgentPointer;

  uint16   TcpWindowSize;

  boolean  WINSEnableLMHostsLookup;

  string   WINSHostLookupFile;

  string   WINSPrimaryServer;

  string   WINSScopeID;

  string   WINSSecondaryServer;

};

详细见http://msdn.microsoft.com/en-us/library/aa394217(v=VS.85).aspx

有的时候，还会用到这样方法，当网卡有多个的时候，判断其中哪个开启了，然后获取启用的那个网卡的mac地址：

string mac = "网卡未配置";

ManagementClass mc;

mc = new ManagementClass("Win32_NetworkAdapter");

ManagementObjectCollection moc = mc.GetInstances();

foreach (ManagementObject mo in moc)

{

    if (mo["NetConnectionStatus"]!=null&&mo["NetConnectionStatus"].ToString()=="2")

    {

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

        mo.Dispose();

        break;

    }

}

Win32_NetworkAdapter类中的其它属性如下：

class Win32_NetworkAdapter : CIM_NetworkAdapter

{

  string   AdapterType;

  uint16   AdapterTypeID;

  boolean  AutoSense;

  uint16   Availability;

  string   Caption;

  uint32   ConfigManagerErrorCode;

  boolean  ConfigManagerUserConfig;

  string   CreationClassName;

  string   Description;

  string   DeviceID;

  boolean  ErrorCleared;

  string   ErrorDescription;

  string   GUID;

  uint32   Index;

  datetime InstallDate;

  boolean  Installed;

  uint32   InterfaceIndex;

  uint32   LastErrorCode;

  string   MACAddress;

  string   Manufacturer;

  uint32   MaxNumberControlled;

  uint64   MaxSpeed;

  string   Name;

  string   NetConnectionID;

  uint16   NetConnectionStatus;

  boolean  NetEnabled;

  string   NetworkAddresses[];

  string   PermanentAddress;

  boolean  PhysicalAdapter;

  string   PNPDeviceID;

  uint16   PowerManagementCapabilities[];

  boolean  PowerManagementSupported;

  string   ProductName;

  string   ServiceName;

  uint64   Speed;

  string   Status;

  uint16   StatusInfo;

  string   SystemCreationClassName;

  string   SystemName;

  datetime TimeOfLastReset;

};