![]() I will show you how to wake up your PC from a local network and a remote location based on what network you are connected to. You can link it to a button, you could use a voice command etc. You can use AutoRemote or AutoTools (or any other SSH client, that integrates with Tasker) to issue the command to the Raspberry Pi. The remote PC listens while in sleep or hibernation mode for the data packet. There is also a full guide here that explain how to connect AutoRemote and AutoTools to a Raspberry PI. WoL lets you remotely wake up a remote computer via a magic data packet sent from another PC on your network. Tasker plugins AutoTools and AutoRemote will let you do this with a press of the button, or link a more specific trigger. You can also use Tasker to issue the command to Raspberry PI as WOL. From the mobile, you could use a JuiceSSH app that lets you do the same thing but from the mobile. Here you have few choices, obviously, you can log into the terminal, and issue the command manually or run the script (which also needs a command). Each time we will try to communicate with your IP or DNS through the port 22, the router will send us to the Raspberry PI. You want to forward the port 22 to an IP that has been assigned to the WIFI interface. Log in to the router admin page (usually 196.168.1.0 or similar) and find the port forwarding settings. ![]() I will assume that you have not changed the SSH port number (22 by default). To get the information from the internet to your Raspberry, you have to tell the router which device you are trying to address. Fear not, I already have a handy guide in here. Once you have the static IP with your router and the PC time to get the Raspberry PI visible outside of the network (skip this if you interested in WOL functionality over the local network only). First, we have to make sure the Raspberry PI has a static IP. ![]() You can execute this line in the terminal, or use a simple bash script to open instead, that will do this for you #!/bin/bashĪnd save it as wol.sh then run it with sudo permissions: sudo bash /path/to/file/wol.sh Sending WOL command to the Raspberry PI as WOL The WOL packet will be sent as a broadcast to all devices on the network. The scripts takes 2 arguments, the MAC address of the NIC, and an IP address. The AA:BB:CC:DD:EE:FF is the MAC address of the device you want to wake up. When installed, you can send a 'magic packet' from your Terminal to any device using its IP (Internet Protocol) and MAC (Media Access Control) address. Send the wake-up packet to the broadcast address.Īppend a four or six byte password to the packet. ContainsKey( $MacString)) Ģ5.# Packet is byte array first six bytes are 0xFF, followed by 16 copies of the MAC addressĢ7.Write-Verbose “Broadcast packet: $(::ToString($Packet))”Ģ9.$UdpClient=New-Object ģ0.$UdpClient.Connect((::Broadcast),4000)ģ1.$UdpClient.Send($Packet,$Packet.Length)ģ3.Ether-wake needs a single dash ('-') in front of options. Param ( $MacString =$( Throw 'Mac address is required')).# Send Wake-on-Lan Magic Packet to specified Mac address.It would be possible to use DNS and the ARP Cache to resolve MAC addresses but the ARP cache will only be populated with a valid entry for any given target adapter for a relative short period of time after the last use of the address (10 minutes or less depending on usage) ARP cannot be used to dynamically resolve the address of a suspended adapter. This script has a table of saved MAC addresses to allow aliases to be specified on the command line (the real addresses have been obfuscated here) and uses a regex to validate the resulting MAC address string. Construction of this packet in PowerShell is a breeze thanks to the array semantics in the language (“$Packet = ](,0xFF*6)+($Mac*16)” – neat). ![]() This packet is sent via UDP to the LAN Broadcast address (255.255.255.255) on arbitrary Port 4000 – although the layer 3 baggage is actually largely irrelevant. Wake on Lan uses a “Magic Packet” that consists of six bytes of 0xFF (the physical layer broadcast address), followed by 16 copies of the 6-byte (48-bit) MAC address (see ). I use this a lot – especially these days with spiralling electricity costs – to wake suspended machines and servers. Here’s my take on the theme in PowerShell (naturally:-) It is my recommended command line utility which. There are a bunch of these to be found on the Web (see the additional notes on Origins below) although sadly some of them are either incorrect or of very dubious style. On another PC, download this little freeware app called WolCmd.
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