<# .SYNOPSIS Wakes up a computer using Wake-on-LAN .DESCRIPTION This PowerShell script sends a magic UDP packet twice to a computer to wake him up (requires the target computer to have Wake-on-LAN activated). .PARAMETER MACaddress Specifies the host's MAC address (e.g. 11:22:33:44:55:66) .PARAMETER IPaddress Specifies the host's IP address or subnet address (e.g. 255.255.255.255) .PARAMETER Port Specifies the UDP port (9 by default) .EXAMPLE PS> ./wake-up.ps1 11:22:33:44:55:66 192.168.100.100 .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([string]$MACaddress = "", [string]$IPaddress = "", [int]$Port=9) function Send-WOL { param([string]$mac, [string]$ip, [int]$port) $broadcast = [Net.IPAddress]::Parse($ip) $mac=(($mac.replace(":","")).replace("-","")).replace(".","") $target=0,2,4,6,8,10 | % {[convert]::ToByte($mac.substring($_,2),16)} $packet = (,[byte]255 * 6) + ($target * 16) $UDPclient = new-Object System.Net.Sockets.UdpClient $UDPclient.Connect($broadcast,$port) [void]$UDPclient.Send($packet, 102) } try { if ($MACaddress -eq "" ) { $MACaddress = Read-Host "Enter the host's MAC address (e.g. 00:11:22:33:44:55)" } if ($IPaddress -eq "" ) { $IPaddress = Read-Host "Enter the host's IP address or subnet address (e.g. 255.255.255.255)" } Send-WOL $MACaddress $IPaddress $Port Start-Sleep -milliseconds 100 Send-WOL $MACaddress $IPaddress $Port "✔️ sent magic packet $MACaddress to IP $IPaddress on port $Port (twice)" exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }