C#修改MAC地址类及操作网卡类

1.更新MAC地址

将注册表中的键值添加上MAC地址

2.重新连接网络

试过了3个方法:

ManagementClass最新提供了Disable,Enable方法，但只支持Vista操作系统

Shell.dll的方法，可以实现，但处理起来很烦，另外在重新连接时显示“启动中”提示框，不友好。

　NetSharingManagerClass 的Disconnect, Connect方法，可以实现，但有一个问题是，会重新更新IP地址，有明显感觉等。

using System;using System.Collections.Generic;using System.Linq;using System.Text;using Microsoft.Win32;using System.Net.NetworkInformation;using System.Management;using System.Threading;using System.Runtime.InteropServices;using NETCONLib;namespace DynamicMAC{    public class MACHelper    {        [DllImport("wininet.dll")]        private extern static bool InternetGetConnectedState(int Description, int ReservedValue);        /// <summary>        /// 是否能连接上Internet        /// </summary>        /// <returns></returns>        public bool IsConnectedToInternet()        {            int Desc = 0;            return InternetGetConnectedState(Desc, 0);        }        /// <summary>        /// 获取MAC地址        /// </summary>        public string GetMACAddress()        {            //得到 MAC的注册表键            RegistryKey macRegistry = Registry.LocalMachine.OpenSubKey("SYSTEM").OpenSubKey("CurrentControlSet").OpenSubKey("Control")                .OpenSubKey("Class").OpenSubKey("{4D36E972-E325-11CE-BFC1-08002bE10318}");            IList<string> list = macRegistry.GetSubKeyNames().ToList();            IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();            var adapter = nics.First(o => o.Name == "本地连接");            if (adapter == null)                return null;            return string.Empty;        }        /// <summary>        /// 设置MAC地址        /// </summary>        /// <param name="newMac"></param>        public void SetMACAddress(string newMac)        {            string macAddress;            string index = GetAdapterIndex(out macAddress);            if (index == null)                return;            //得到 MAC的注册表键            RegistryKey macRegistry = Registry.LocalMachine.OpenSubKey("SYSTEM").OpenSubKey("CurrentControlSet").OpenSubKey("Control")                .OpenSubKey("Class").OpenSubKey("{4D36E972-E325-11CE-BFC1-08002bE10318}").OpenSubKey(index, true);            if (string.IsNullOrEmpty(newMac))            {                macRegistry.DeleteValue("NetworkAddress");            }            else            {                macRegistry.SetValue("NetworkAddress", newMac);                macRegistry.OpenSubKey("Ndi", true).OpenSubKey("params", true).OpenSubKey("NetworkAddress", true).SetValue("Default", newMac);                macRegistry.OpenSubKey("Ndi", true).OpenSubKey("params", true).OpenSubKey("NetworkAddress", true).SetValue("ParamDesc", "Network Address");            }            Thread oThread = new Thread(new ThreadStart(ReConnect));//new Thread to ReConnect            oThread.Start();        }        /// <summary>        /// 重设MAC地址        /// </summary>        public void ResetMACAddress()        {            SetMACAddress(string.Empty);        }        /// <summary>        /// 重新连接        /// </summary>        private void ReConnect()        {            NetSharingManagerClass netSharingMgr = new NetSharingManagerClass();            INetSharingEveryConnectionCollection connections = netSharingMgr.EnumEveryConnection;            foreach (INetConnection connection in connections)            {                INetConnectionProps connProps = netSharingMgr.get_NetConnectionProps(connection);                if (connProps.MediaType == tagNETCON_MEDIATYPE.NCM_LAN)                {                    connection.Disconnect(); //禁用网络                    connection.Connect();    //启用网络                }            }        }        /// <summary>        /// 生成随机MAC地址        /// </summary>        /// <returns></returns>        public string CreateNewMacAddress()        {            //return "0016D3B5C493";            int min = 0;            int max = 16;            Random ro = new Random();            var sn = string.Format("{0}{1}{2}{3}{4}{5}{6}{7}{8}{9}{10}{11}",               ro.Next(min, max).ToString("x"),//0               ro.Next(min, max).ToString("x"),//               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),//5               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),               ro.Next(min, max).ToString("x"),//10               ro.Next(min, max).ToString("x")                ).ToUpper();            return sn;        }        /// <summary>        /// 得到Mac地址及注册表对应Index        /// </summary>        /// <param name="macAddress"></param>        /// <returns></returns>        public string GetAdapterIndex(out string macAddress)        {            ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapterConfiguration");            ManagementObjectCollection colMObj = oMClass.GetInstances();            macAddress = string.Empty;            int indexString = 1;            foreach (ManagementObject objMO in colMObj)            {                indexString++;                if (objMO["MacAddress"] != null && (bool)objMO["IPEnabled"] == true)                {                    macAddress = objMO["MacAddress"].ToString().Replace(":", "");                    break;                }            }            if (macAddress == string.Empty)                return null;            else                return indexString.ToString().PadLeft(4, '0');        }        #region Temp        public void noting()        {            //ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapterConfiguration");            ManagementClass oMClass = new ManagementClass("Win32_NetworkAdapter");            ManagementObjectCollection colMObj = oMClass.GetInstances();            foreach (ManagementObject objMO in colMObj)            {                if (objMO["MacAddress"] != null)                {                    if (objMO["Name"] != null)                    {                        //objMO.InvokeMethod("Reset", null);                        objMO.InvokeMethod("Disable", null);//Vista only                        objMO.InvokeMethod("Enable", null);//Vista only                    }                    //if ((bool)objMO["IPEnabled"] == true)                    //{                    //    //Console.WriteLine(objMO["MacAddress"].ToString());                    //    //objMO.SetPropertyValue("MacAddress", CreateNewMacAddress());                    //    //objMO["MacAddress"] = CreateNewMacAddress();                    //    //objMO.InvokeMethod("Disable", null);                    //    //objMO.InvokeMethod("Enable", null);                    //    //objMO.Path.ReleaseDHCPLease();                    //    var iObj = objMO.GetMethodParameters("EnableDHCP");                    //    var oObj = objMO.InvokeMethod("ReleaseDHCPLease", null, null);                    //    Thread.Sleep(100);                    //    objMO.InvokeMethod("RenewDHCPLease", null, null);                    //}                }            }        }        public void no()        {            Shell32.Folder networkConnectionsFolder = GetNetworkConnectionsFolder();            if (networkConnectionsFolder == null)            {                Console.WriteLine("Network connections folder not found.");                return;            }            Shell32.FolderItem2 networkConnection = GetNetworkConnection(networkConnectionsFolder, string.Empty);            if (networkConnection == null)            {                Console.WriteLine("Network connection not found.");                return;            }            Shell32.FolderItemVerb verb;            try            {                IsNetworkConnectionEnabled(networkConnection, out verb);                verb.DoIt();                Thread.Sleep(1000);                IsNetworkConnectionEnabled(networkConnection, out verb);                verb.DoIt();            }            catch (ArgumentException ex)            {                Console.WriteLine(ex.Message);            }        }        /// <summary>        /// Gets the Network Connections folder in the control panel.        /// </summary>        /// <returns>The Folder for the Network Connections folder, or null if it was not found.</returns>        static Shell32.Folder GetNetworkConnectionsFolder()        {            Shell32.Shell sh = new Shell32.Shell();            Shell32.Folder controlPanel = sh.NameSpace(3); // Control panel            Shell32.FolderItems items = controlPanel.Items();            foreach (Shell32.FolderItem item in items)            {                if (item.Name == "网络连接")                    return (Shell32.Folder)item.GetFolder;            }            return null;        }        /// <summary>        /// Gets the network connection with the specified name from the specified shell folder.        /// </summary>        /// <param name="networkConnectionsFolder">The Network Connections folder.</param>        /// <param name="connectionName">The name of the network connection.</param>        /// <returns>The FolderItem for the network connection, or null if it was not found.</returns>        static Shell32.FolderItem2 GetNetworkConnection(Shell32.Folder networkConnectionsFolder, string connectionName)        {            Shell32.FolderItems items = networkConnectionsFolder.Items();            foreach (Shell32.FolderItem2 item in items)            {                if (item.Name == "本地连接")                {                    return item;                }            }            return null;        }        /// <summary>        /// Gets whether or not the network connection is enabled and the command to enable/disable it.        /// </summary>        /// <param name="networkConnection">The network connection to check.</param>        /// <param name="enableDisableVerb">On return, receives the verb used to enable or disable the connection.</param>        /// <returns>True if the connection is enabled, false if it is disabled.</returns>        static bool IsNetworkConnectionEnabled(Shell32.FolderItem2 networkConnection, out Shell32.FolderItemVerb enableDisableVerb)        {            Shell32.FolderItemVerbs verbs = networkConnection.Verbs();            foreach (Shell32.FolderItemVerb verb in verbs)            {                if (verb.Name == "启用(&A)")                {                    enableDisableVerb = verb;                    return false;                }                else if (verb.Name == "停用(&B)")                {                    enableDisableVerb = verb;                    return true;                }            }            throw new ArgumentException("No enable or disable verb found.");        }        #endregion    }}

操作网卡类：

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Management;using System.Collections; namespace NetWorkControl{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();            NetWorkList();        }         /// <summary>        /// 网卡列表        /// </summary>        public void NetWorkList()        {            string manage = "SELECT * From Win32_NetworkAdapter";            ManagementObjectSearcher searcher = new ManagementObjectSearcher(manage);            ManagementObjectCollection collection = searcher.Get();            List<string> netWorkList = new List<string>();             foreach (ManagementObject obj in collection)            {                netWorkList.Add(obj["Name"].ToString());                             }           this.cmbNetWork.DataSource = netWorkList;         }         /// <summary>        /// 禁用网卡        /// </summary>5        /// <param name="netWorkName">网卡名</param>        /// <returns></returns>        public bool DisableNetWork(ManagementObject network)        {            try            {                network.InvokeMethod("Disable", null);                return true;            }            catch            {                return false;            }        }         /// <summary>        /// 启用网卡        /// </summary>        /// <param name="netWorkName">网卡名</param>        /// <returns></returns>        public bool EnableNetWork(ManagementObject network)        {            try            {                network.InvokeMethod("Enable", null );                return true;            }            catch            {                return false;            }                     }         /// <summary>        /// 网卡状态        /// </summary>        /// <param name="netWorkName">网卡名</param>        /// <returns></returns>        public bool NetWorkState(string netWorkName)        {            string netState = "SELECT * From Win32_NetworkAdapter";            ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);            ManagementObjectCollection collection = searcher.Get();            foreach (ManagementObject manage in collection)            {                if (manage["Name"].ToString() == netWorkName )                {                    return true;                }            }            return false;        }         /// <summary>        /// 得到指定网卡        /// </summary>        /// <param name="networkname">网卡名字</param>        /// <returns></returns>        public ManagementObject NetWork(string networkname)        {            string netState = "SELECT * From Win32_NetworkAdapter";             ManagementObjectSearcher searcher = new ManagementObjectSearcher(netState);            ManagementObjectCollection collection = searcher.Get();             foreach (ManagementObject manage in collection)            {                if (manage["Name"].ToString() == networkname)                {                    return manage;                }            }                          return null;        }         private void btnStart_Click(object sender, EventArgs e)        {            if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))            {                if (!EnableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))                {                    MessageBox.Show("开启网卡失败!");                }                else                {                    MessageBox.Show("开启网卡成功!");                }            }            else            {                MessageBox.Show("网卡己开启!");            }             NetWorkList();        }         private void btnStop_Click(object sender, EventArgs e)        {             if (NetWorkState(this.cmbNetWork.SelectedValue.ToString()))            {                if (!DisableNetWork(NetWork(this.cmbNetWork.SelectedValue.ToString())))                {                    MessageBox.Show("禁用网卡失败!");                }                else                {                    MessageBox.Show("禁用网卡成功!");                }            }            else            {                MessageBox.Show("网卡己禁用!");            }             NetWorkList();        }     }}

转载自:http://blog.csdn.net/arden27336/article/details/3523203