如何使用PowerShell发送网络唤醒魔包？

Question

我想使用 PowerShell 发送 WOL 魔术包，而不依赖于任何第三方工具。

Answer 1

这是正在运行的 PowerShell one-liner 我用来发送 WakeOnLan 数据包：

'01-23-45-67-89-AB' | Set-Variable 'mac'; [System.Net.NetworkInformation.NetworkInterface]::GetAllNetworkInterfaces() | Where-Object { $_.NetworkInterfaceType -ne [System.Net.NetworkInformation.NetworkInterfaceType]::Loopback -and $_.OperationalStatus -eq [System.Net.NetworkInformation.OperationalStatus]::Up } | ForEach-Object { $targetPhysicalAddressBytes = [System.Net.NetworkInformation.PhysicalAddress]::Parse(($mac.ToUpper() -replace '[^0-9A-F]','')).GetAddressBytes(); $packet = [byte[]](,0xFF * 102); 6..101 | Foreach-Object { $packet[$_] = $targetPhysicalAddressBytes[($_ % 6)] }; $client = [System.Net.Sockets.UdpClient]::new([System.Net.IPEndPoint]::new(($_.GetIPProperties().UnicastAddresses | Where-Object { $_.Address.AddressFamily -eq [System.Net.Sockets.AddressFamily]::InterNetwork })[0].Address, 0)); try { $client.Send($packet, $packet.Length,[System.Net.IPEndPoint]::new([System.Net.IPAddress]::Broadcast, 9)) | Out-Null } finally { $client.Dispose() } }

这是一个更易读的版本：

$mac = '01-23-45-67-89-AB';
[System.Net.NetworkInformation.NetworkInterface]::GetAllNetworkInterfaces() | Where-Object { $_.NetworkInterfaceType -ne [System.Net.NetworkInformation.NetworkInterfaceType]::Loopback -and $_.OperationalStatus -eq [System.Net.NetworkInformation.OperationalStatus]::Up } | ForEach-Object {
    $networkInterface = $_
    $localIpAddress = ($networkInterface.GetIPProperties().UnicastAddresses | Where-Object { $_.Address.AddressFamily -eq [System.Net.Sockets.AddressFamily]::InterNetwork })[0].Address
    $targetPhysicalAddress = [System.Net.NetworkInformation.PhysicalAddress]::Parse(($mac.ToUpper() -replace '[^0-9A-F]',''))
    $targetPhysicalAddressBytes = $targetPhysicalAddress.GetAddressBytes()
    $packet = [byte[]](,0xFF * 102)
    6..101 | Foreach-Object { $packet[$_] = $targetPhysicalAddressBytes[($_ % 6)] }
    $localEndpoint = [System.Net.IPEndPoint]::new($localIpAddress, 0)
    $targetEndpoint = [System.Net.IPEndPoint]::new([System.Net.IPAddress]::Broadcast, 9)
    $client = [System.Net.Sockets.UdpClient]::new($localEndpoint)
    try { $client.Send($packet, $packet.Length, $targetEndpoint) | Out-Null } finally { $client.Dispose() }
}

支持所有常见的 

MAC 地址格式

，大小写无关，例如：

0123456789aB
01-23-45-67-89-aB
01:23:45:67:89:aB
0123.4567.89aB
适用于

powershell.exe

(.NET Framework) 和

pwsh.exe

(.NET/.Net Core)。大致基于

使用 C# 在 LAN 上唤醒

的代码。