C#使用MAC地址通过网络唤醒局域网计算机

  C#使用MAC地址通过网络唤醒局域网计算机,目标机器需要设置过主板允许网络唤醒,要不无法启动。以下为控制台引用程序,测试有效。功能和MAGPAC软件唤醒语句网电脑效果一样。

C#使用MAC地址通过网络唤醒局域网计算机

using System;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.IO;
namespace ConsoleApp1
{
    class Demo
    {
        public static void Main()
        {
            WakeComputer("90-E6-BA-40-A7-95");
            Console.ReadKey();
        }
        async static void WakeComputer(string mac)
        {
            await WOL.WakeOnLan(mac);
        }
    }
    public static class WOL
    {
        public static async Task WakeOnLan(string macAddress)
        {
            byte[] magicPacket = BuildMagicPacket(macAddress);
            foreach (NetworkInterface networkInterface in NetworkInterface.GetAllNetworkInterfaces().Where((n) =>
                n.NetworkInterfaceType != NetworkInterfaceType.Loopback && n.OperationalStatus == OperationalStatus.Up))
            {
                IPInterfaceProperties iPInterfaceProperties = networkInterface.GetIPProperties();
                foreach (MulticastIPAddressInformation multicastIPAddressInformation in iPInterfaceProperties.MulticastAddresses)
                {
                    IPAddress multicastIpAddress = multicastIPAddressInformation.Address;
                    if (multicastIpAddress.ToString().StartsWith("ff02::1%", StringComparison.OrdinalIgnoreCase)) // Ipv6: All hosts on LAN (with zone index)
                    {
                        UnicastIPAddressInformation unicastIPAddressInformation = iPInterfaceProperties.UnicastAddresses.Where((u) =>
                            u.Address.AddressFamily == AddressFamily.InterNetworkV6 && !u.Address.IsIPv6LinkLocal).FirstOrDefault();
                        if (unicastIPAddressInformation != null)
                        {
                            await SendWakeOnLan(unicastIPAddressInformation.Address, multicastIpAddress, magicPacket);
                            break;
                        }
                    }
                    else if (multicastIpAddress.ToString().Equals("224.0.0.1")) // Ipv4: All hosts on LAN
                    {
                        UnicastIPAddressInformation unicastIPAddressInformation = iPInterfaceProperties.UnicastAddresses.Where((u) =>
                            u.Address.AddressFamily == AddressFamily.InterNetwork && !iPInterfaceProperties.GetIPv4Properties().IsAutomaticPrivateAddressingActive).FirstOrDefault();
                        if (unicastIPAddressInformation != null)
                        {
                            await SendWakeOnLan(unicastIPAddressInformation.Address, multicastIpAddress, magicPacket);
                            break;
                        }
                    }
                }
            }
        }
        static byte[] BuildMagicPacket(string macAddress) // MacAddress in any standard HEX format
        {
            macAddress = Regex.Replace(macAddress, "[: -]", "");
            byte[] macBytes = new byte[6];
            for (int i = 0; i < 6; i++)
            {
                macBytes[i] = Convert.ToByte(macAddress.Substring(i * 2, 2), 16);
            }
            using (MemoryStream ms = new MemoryStream())
            {
                using (BinaryWriter bw = new BinaryWriter(ms))
                {
                    for (int i = 0; i < 6; i++)  //First 6 times 0xff
                    {
                        bw.Write((byte)0xff);
                    }
                    for (int i = 0; i < 16; i++) // then 16 times MacAddress
                    {
                        bw.Write(macBytes);
                    }
                }
                return ms.ToArray(); // 102 bytes magic packet
            }
        }
        static async Task SendWakeOnLan(IPAddress localIpAddress, IPAddress multicastIpAddress, byte[] magicPacket)
        {
            using (UdpClient client = new UdpClient(new IPEndPoint(localIpAddress, 0)))
            {
                await client.SendAsync(magicPacket, magicPacket.Length, multicastIpAddress.ToString(), 9);
            }
        }
    }
}

代码来源:https://stackoverflow.com/questions/861873/wake-on-lan-using-c-sharp

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