请教怎么获取客户端网卡的物理地址

小弟有一个小程序要获取客户端网卡的物理地址
我在网上找了一个代码。。只能获取同一个网段网卡的物理地址
其他网段的获取不了，只能显示：00-00-00-00-00
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请教怎么获取不同网段的网卡的物理地址！
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谢谢大家了！

解决方案 »

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客户端，需要自己开发一个ActiveX控件
以前找的一点代码,不知道有没有用:
<HTML><HEAD><TITLE>WMI Scripting HTML</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<SCRIPT language=JScript event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for=foo>
document.forms[0].txtMACAddr.value=unescape(MACAddr);
document.forms[0].txtIPAddr.value=unescape(IPAddr);
document.forms[0].txtDNSName.value=unescape(sDNSName);
//document.formbar.submit();
  </SCRIPT><SCRIPT language=JScript event=OnObjectReady(objObject,objAsyncContext) for=foo>
   if(objObject.IPEnabled != null && objObject.IPEnabled != "undefined" && objObject.IPEnabled == true)
   {
    if(objObject.MACAddress != null && objObject.MACAddress != "undefined")
    MACAddr = objObject.MACAddress;
    if(objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined")
    IPAddr = objObject.IPAddress(0);
    if(objObject.DNSHostName != null && objObject.DNSHostName != "undefined")
    sDNSName = objObject.DNSHostName;
    }
  </SCRIPT><META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD>
<BODY>
<OBJECT id=locator classid=CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 VIEWASTEXT></OBJECT>
<OBJECT id=foo classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223></OBJECT>
<SCRIPT language=JScript>
   var service = locator.ConnectServer();
   var MACAddr ;
   var IPAddr ;
   var DomainAddr;
   var sDNSName;
   service.Security_.ImpersonationLevel=3;
   service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
   </SCRIPT><FORM id="formfoo" name="formbar" action="index.do" method="post"><INPUT value="00-11-11-B4-52-EF"   name="txtMACAddr"> <INPUT value="202.102.188.170"  name="txtIPAddr"> <INPUT value="jackly" name="txtDNSName"> </FORM></BODY></HTML>
看看这个有没有帮助？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
            {
            }
        }
    }
}
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);
            }
        }
    }
}