如何获取网卡真实的MAC地址？？？？？？？？？？？？？？？？？？？？？？
有些用户会改变自己的网卡MAC地址，如何读取网卡的真实MAC地址而不是用户更改后的网卡MAC地址？？？？谢谢！！！！！！！！！！！！！！！！！！！！

[解决办法]
wmi
[解决办法]
@_@
[解决办法]
我虽然没有回答您的问题，但也帮您顶了下，求您给小女几分好吗？我非专业，但需要点分提问啊！

呵呵，谢谢！！
[解决办法]
using System;
using System.Management;

namespace HTSoft.Common.Register
{
/// <summary>
/// 计算机信息类
/// </summary>
internal class Computer
{
public string CpuID;
public string MacAddress;
public string DiskID;
public string IpAddress;
public string LoginUserName;
public string ComputerName;
public string SystemType;
public string TotalPhysicalMemory; //单位：M
private static Computer _instance;

internal static Computer Instance()
{
if (_instance == null)
_instance = new Computer();
return _instance;
}

internal Computer()
{
CpuID = GetCpuID();
MacAddress = GetMacAddress();
DiskID = GetDiskID();
IpAddress = GetIPAddress();
LoginUserName = GetUserName();
SystemType = GetSystemType();
TotalPhysicalMemory = GetTotalPhysicalMemory();
ComputerName = GetComputerName();
}
string GetCpuID()
{
try
{
//获取CPU序列号代码
string cpuInfo = " ";//cpu序列号
ManagementClass mc = new ManagementClass( "Win32_Processor ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
cpuInfo = mo.Properties[ "ProcessorId "].Value.ToString();
}
moc = null;
mc = null;
return cpuInfo;
}
catch
{
return "unknow ";
}
finally
{
}

}
string GetMacAddress()
{
try
{
//获取网卡硬件地址
string mac = " ";
ManagementClass mc = new ManagementClass( "Win32_NetworkAdapterConfiguration ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
if ((bool)mo[ "IPEnabled "] == true)
{
mac = mo[ "MacAddress "].ToString();
break;
}
}
moc = null;
mc = null;
return mac;
}
catch
{
return "unknow ";
}
finally
{
}

}
string GetIPAddress()
{
try
{
//获取IP地址
string st = " ";

ManagementClass mc = new ManagementClass( "Win32_NetworkAdapterConfiguration ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
if ((bool)mo[ "IPEnabled "] == true)
{
//st=mo[ "IpAddress "].ToString();
System.Array ar;
ar = (System.Array)(mo.Properties[ "IpAddress "].Value);
st = ar.GetValue(0).ToString();
break;
}
}
moc = null;
mc = null;
return st;
}
catch
{
return "unknow ";
}
finally
{
}

}

string GetDiskID()
{
try
{
//获取硬盘ID
String HDid = " ";
ManagementClass mc = new ManagementClass( "Win32_DiskDrive ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
HDid = (string)mo.Properties[ "Model "].Value;
}
moc = null;
mc = null;
return HDid;
}
catch
{
return "unknow ";
}
finally
{
}

}

/// <summary>
/// 操作系统的登录用户名
/// </summary>
/// <returns> </returns>
string GetUserName()
{
try
{
string st = " ";
ManagementClass mc = new ManagementClass( "Win32_ComputerSystem ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{

st = mo[ "UserName "].ToString();

}
moc = null;
mc = null;
return st;
}
catch
{
return "unknow ";
}
finally
{
}

}


/// <summary>
/// PC类型
/// </summary>
/// <returns> </returns>
string GetSystemType()
{
try
{
string st = " ";
ManagementClass mc = new ManagementClass( "Win32_ComputerSystem ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{

st = mo[ "SystemType "].ToString();

}
moc = null;
mc = null;
return st;
}
catch
{
return "unknow ";
}
finally
{
}

}

/// <summary>

/// 物理内存
/// </summary>
/// <returns> </returns>
string GetTotalPhysicalMemory()
{
try
{

string st = " ";
ManagementClass mc = new ManagementClass( "Win32_ComputerSystem ");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{

st = mo[ "TotalPhysicalMemory "].ToString();

}
moc = null;
mc = null;
return st;
}
catch
{
return "unknow ";
}
finally
{
}
}
/// <summary>
/// 获取计算机名称
/// </summary>
/// <returns> </returns>
string GetComputerName()
{
try
{
return System.Environment.GetEnvironmentVariable( "ComputerName ");
}
catch
{
return "unknow ";
}
finally
{
}
}
}
}
[解决办法]
WMI代码如下（可以获取所有网卡的MAC地址）：
using System;
using System.Management;
using System.Windows.Forms;

namespace WMISample
{
public class MyWMIQuery
{
public static void Main()
{
try
{
ManagementObjectSearcher searcher =
new ManagementObjectSearcher( "root\\CIMV2 ",
"SELECT * FROM Win32_NetworkAdapter ");

foreach (ManagementObject queryObj in searcher.Get())
{
Console.WriteLine( "----------------------------------- ");
Console.WriteLine( "Win32_NetworkAdapter instance ");
Console.WriteLine( "----------------------------------- ");
Console.WriteLine( "MACAddress: {0} ", queryObj[ "MACAddress "]);
}
}
catch (ManagementException e)
{
MessageBox.Show( "An error occurred while querying for WMI data: " + e.Message);
}
}
}
}
[解决办法]
你是不是想通过用户的IP得到网卡地址啊,这好像比较难,内网可以,外网好像比较困难,
[解决办法]
这就不清楚了,如果用户自己更改了网卡地址,那至少在用的这个地址肯定是更改过的,除非你在用户的机子上弄个木马,把它的硬件信息都搞过来
[解决办法]
这个基本很难。

我也困惑过，无解。
[解决办法]
xuoxi。。。。
[解决办法]
不知道！ 帮顶下……