Copyright-free Wake on LAN script !

[thijzzz]

*kiss*

[Lakes]

This doe`nt work for me, I know the Mac and IP addy are correct as this Utility http://www.tnk-bootblock.co.uk/software/in...amp;id=5D3C17E4 turns on the PC.

Broadcast Address on this is set to 255.255.255.255 as Default, So, do I need to specify a broadcast addy as well as the Mac and IP?

Is there a way to use this to turn Off a PC, rather than having to use remote desktop and do it from the taskmanager?

Thanks.

Edited October 20, 2006 by Lakes

[/dev/null]

Broadcast Address on this is set to 255.255.255.255 as Default, So, do I need to specify a broadcast addy as well as the Mac and IP?

wrong IP addr. Read the code in the first post. It uses the network broadcast address not 255.255.255.255. I believe the UDP functions don't work with the general broadcast.

Is there a way to use this to turn Off a PC, rather than having to use remote desktop and do it from the taskmanager?

well this is called WAKE on Lan, so no "go to sleep"!

Cheers

Kurt

Edited October 21, 2006 by /dev/null

[Lakes]

wrong IP addr. Read the code in the first post. It uses the network broadcast address not 255.255.255.255. I believe the UDP functions don't work with the general broadcast.

well this is called WAKE on Lan, so no "go to sleep"!

Cheers

Kurt

LOL! on the "go to sleep"!

There is some confusion on the terminology used here, in the autoit app the broadcast address is the IP address of the remote computer, in the Wake onLan.Ex utility the Broadcast address is a Network Mask.

So, the Wake On Lan.ex utility works, but if I put exactly the same IP and MAC details into this script, nothing happens, the only thing different is the network mask entry, I don`t know what its for or what it does?

Here`s my details at the start of the script:

$IPAddress = "192.168.0.10"; This is the broadcast address !
$MACAddress = "000E2E8CD948"

Edited October 21, 2006 by Lakes

[dandymcgee]

Hmm... Well how exactly does this turn on a PC? Does it actually tell the PC that the power button was pressed and that it should boot up? I couldn't possibly work, because I have to turn on a Power Strip (6 socket bar plugged into wall outlet) then press the power button to turn the computer on. I don't get exactly what this script is trying to do???

[_Kurt]

I don't understand the purpose of this script either, would someone like to elaborate on the use of it?

[/dev/null]

$IPAddress = "192.168.0.10"; This is the broadcast address !

no, that's not the broadcast address! What's your IP addr and netmask of

the PC you are running the script on?

Cheers

Kurt

[/dev/null]

I don't understand the purpose of this script either, would someone like to elaborate on the use of it?

google "wake on lan"!

Cheers

Kurt

[Lakes]

no, that's not the broadcast address! What's your IP addr and netmask of

the PC you are running the script on?

Cheers

Kurt

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Realtek RTL8169/8110 Family Gigab

Ethernet NIC

Physical Address. . . . . . . . . : 00-0E-2E-8C-D7-5B

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : 192.168.0.1

Subnet Mask . . . . . . . . . . . : 255.255.255.0

[/dev/null]

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Realtek RTL8169/8110 Family Gigab

Ethernet NIC

Physical Address. . . . . . . . . : 00-0E-2E-8C-D7-5B

Dhcp Enabled. . . . . . . . . . . : No

IP Address. . . . . . . . . . . . : 192.168.0.1

Subnet Mask . . . . . . . . . . . : 255.255.255.0

then your bcast addr is 192.168.0.255.

Cheers

Kurt

[Lakes]

then your bcast addr is 192.168.0.255.

Cheers

Kurt

Thanks, I don`t understand it, but it works!

[MadBoy]

I decided to post some explanation, even thou this is not my topic and everyone can use Wikipedia.

How it works

The target computer is shut down, with power reserved for the network card. The network card listens for a specific packet, called the Magic Packet. The Magic Packet is broadcast on the broadcast address for that particular subnet or the entire LAN. The listening computer receives this packet, checks it for the correct information, and then boots if the Magic Packet is valid.

What is Magic Packet

The Magic Packet is a broadcast frame, transmitted over port 7 or 9. It can be sent over a variety of connectionless protocols (UDP, IPX) but UDP is most commonly used. The data that is contained in a Magic Packet is the defined constant as represented in hexadecimal: FF FF FF FF FF FF followed by sixteen repetitions of the target computer's MAC address, possibly followed by a four or six byte password.

What is Broadcasting Adress

In computer networking, a broadcast address is an IP address that allows information to be sent to all machines on a given subnet rather than a specific machine. The exact notation can vary by operating system, but the standard is laid out in RFC 919.

In other words when you send a packet to specic IP called broadcast adress that IP resends your message to all ips in it's range. If your computer's ethernet card is active and waiting for such message it starts up your computer. It's that simple

Wake on Lan is diffrent thing then Wake on Ring. As stated above Wake on Ring is for Modems and Wake on Lan for Ethernet Cards. New motherboards have Wake On Lan implemented so if you got no Wake on Lan in BIOS you can just replace your motherboard with new one

If you want to get MAC adress of some computer in your network. You can simply go to Start -> Run -> Type in "cmd". And in that window type "ping 192.168.0.1 (or other ip adress of your choice)" and then type "arp -a". That list should give you MAC adress for IP.

Thank You and good luck

[Trolderik]

great ive been looking for something like this... prolly wouldnt be to hard to add a gui asking for ip addy each time or maybe sending to multiple ips? also add a sleep on LAN function (shutdown computer)? That would be great!

mostly just thinkin out loud...

Why not use:

• Shutdown command?
• Beyondexecv2 from Beyond Logic?
• PSShutdown from Sysinternals?

I've made a program that collects all the MAC-addresses from PC connected to the network. Then the program starts all the PC's at 7:00 am with WOL and shuts them down at 6:00 pm. No actions in weekends.

That saves a lot of power when the users forget to turn off their computer.

Regards

Trolderik

[Lakes]

I decided to post some explanation, even thou this is not my topic and everyone can use Wikipedia.

What is Broadcasting Adress

In computer networking, a broadcast address is an IP address that allows information to be sent to all machines on a given subnet rather than a specific machine. The exact notation can vary by operating system, but the standard is laid out in RFC 919.

In other words when you send a packet to specic IP called broadcast adress that IP resends your message to all ips in it's range. If your computer's ethernet card is active and waiting for such message it starts up your computer. It's that simple

Thank You and good luck

Thanks for explaination!

So, would the broadcast address 192.168.0.255 start all machines in the range from 192.168.0.1 to 192.168.0.255, or would it only start the machine with the mac address of a particular PC?

[Trolderik]

Thanks for explaination!

So, would the broadcast address 192.168.0.255 start all machines in the range from 192.168.0.1 to 192.168.0.255, or would it only start the machine with the mac address of a particular PC?

expandcollapse popup

$IPADRESSE = StringSplit(@IPAddress1,".")
$Broadcast = $IPADRESSE[1] & "." & $IPADRESSE[2] & "." & $IPADRESSE[3] & "." & "255"

$MACAddress = "020000D00406"
UDPStartUp()
$connexion = UDPOpen($Broadcast,7)
UDPSend($connexion, GenerateMagicPacket($MACAddress))
UDPCloseSocket($connexion)
UDPShutdown()

; ===================================================================
; Functions
; ===================================================================


; This function convert a MAC Address Byte (e.g. "1f") to a char
Func HexToChar($strHex)
    
    Return Chr(Dec($strHex))
    
EndFunc

; This function generate the "Magic Packet"
Func GenerateMagicPacket($strMACAddress)
    
    $MagicPacket = ""
    $MACData = ""
    
    For $p = 1 To 11 Step 2
        $MACData = $MACData & HexToChar(StringMid($strMACAddress, $p, 2))
    Next
    
    For $p = 1 To 6
        $MagicPacket = HexToChar("ff") & $MagicPacket
    Next
    
    For $p = 1 To 16
        $MagicPacket = $MagicPacket & $MACData
    Next
    
    Return $MagicPacket
    
EndFunc

This will auto generate the broadcast address and wake up the PC with MAC = 020000D00406

Regards

Trolderik

[Lakes]

Gotcha! Good Job!

[Steven Vandenhoute]

on wich port is the programming broadcasting? because I'm looking for a way to startup my desktop at home true the internet.

But than I have to open a port on my router. So I need to now witch port

[Ktulu789]

This will auto generate the broadcast address and wake up the PC with MAC = 020000D00406

Regards

Trolderik

That code wont always bring the broadcast adress. It's just a coincidence that the broadcast sometimes ends on 255.

A bit of knowledge:

IP addresses have classes (A, B, C and, also, D)

Every IP is on a net and sometimes on a subnet (there comes the subnet mask -SM-).

So you can have the IP 192.168.0.2 (...0.1 is the router on this example net) and a SM of 255.255.255.64 wich means that on this subnet can only be 62 different addresses, a net address (the lowest number 192.168.0.0) and a broadcast adress (wich is always the highest number: 192.168.0.63).

You can also have the IP 192.168.0.90 and the same SM so your broadcast will be 192.168.0.127 and the net address, 192.168.0.64 but you can't communicate directly with 192.168.0.2 because that is on the other subnet and there is where the router does it's job: if the IP is on the same subnet it lets the packets move inside the net, else, it sends the packet right out of the subnet to the other router.

@Klaatu: I think that you are wrong when you say that, as you have a Class A address range, then your SM has to be 255.255.255.255. Also, no WOL program needs an IP address to work as computers that are off don't have IP address. In this script you need to know the broadcast IP address. (post #23)

I'll be working on a work around to automatically get the broadcast.

It is just some math with the IP and de SM.

Also I will be working on a script that gets all the MACs on a net and stores them into a list with their IPs (maybe also the PC name) so I can just select wich machine(s) wake, all from the same script.

on wich port is the programming broadcasting? because I'm looking for a way to startup my desktop at home true the internet.

But than I have to open a port on my router. So I need to now witch port

I don't think that WOL should work on nets outside the one you are in. Anyway, Madboy says on the post#53 that the ports are 7 or 9 although that, for me, it works on any port from 1 to 65535. This link has more info but it doesn't mention ports anyway: http://gsd.di.uminho.pt/jpo/software/wakeo...ni-howto-2.html. I don't think there is a port for this kind of packets.

But an idea has came to me right now: instead of opening a port, translate it and redirect it to the broadcast address of the net in wich your router is. This can be called virtual server (D-Link), NAT, network address translation or whatever the manufacturer has chosen :-(.

Example: set your router to listen on the port 32154 and redirect what is received to the same port, or any other, on the IP 192.168.0.255. I dont know wich security issues this can have (everything on the internet talking to this port will be listened by all the computers in your net). So I advice to enable this port just when you need to wake your PC and then disable it. I take no responsability on what can happen! Just be careful and use a rare (high) number of port.

I configured it right now and will be testing it next monday from the office. I hope it works so I don't have to leave my computer on every day just in case I need to get something at home.

I will post the results.

[ReverendJ1]

Hi all. Just thought I would help out a little here. In case you are having trouble figuring out your broadcast address, I made it so Olish's script will automagically figure out your Broadcast IP of the network you are on and use it. This is more accurate than Trolderik's script, as it is how you are actually supposed to figure out the broadcast address (see ktulu789's post above mine). I also added an inputbox for the MAC address. Oooh spiffy.

expandcollapse popup

#include <process.au3>
_RunDOS("ipconfig >> " & chr(34) & @ScriptDir & "\ipconfig.txt" & chr(34))
$fileIPConfig = FileOpen(@ScriptDir & "\ipconfig.txt", 0)
While 1
    $strReadLine = FileReadLine($fileIPConfig)
    If @error <> 0 Then
        $arrSubnetMask = "Error"
        ExitLoop
    EndIf
    If StringInStr($strReadLine, "Subnet Mask") <> 0 Then
        $arrSubnetMask = StringSplit(StringMid($strReadLine, 45), ".")
        ExitLoop
    EndIf
WEnd
If FileExists(@ScriptDir & "\ipconfig.txt") = 1 Then
    FileDelete(@ScriptDir & "\ipconfig.txt")
EndIf
If IsArray($arrSubnetMask) <> 1 Then
    Exit
EndIf
$arrIPAddress = StringSplit(@IPAddress1, ".")
If $arrSubnetMask[1] = 255 Then
    $strBroadcastIP = $arrIPAddress[1]
Else
    $strBroadcastIP = 255 - $arrSubnetMask[1]
EndIf
For $i = 2 to 4
    If $arrSubnetMask[$i] = 255 Then
        $strBroadcastIP = $strBroadcastIP & "." & $arrIPAddress[$i]
    Else
        $strBroadcastIP = $strBroadcastIP & "." & 255 - $arrSubnetMask[$i]
    EndIf
Next

$MACAddress = InputBox("Wake-On-Lan", "Please enter MAC address of computer to wake up.")
$MACAddress = StringReplace($MACAddress, ":", "")
$MACAddress = StringReplace($MACAddress, "-", "")
UDPStartUp()

$connexion = UDPOpen($strBroadcastIP, 7)
$res = UDPSend($connexion, GenerateMagicPacket($MACAddress))
MsgBox(0, "", "Magic packet sent!")

UDPCloseSocket($connexion)
UDPShutdown()


; ===================================================================
; Functions
; ===================================================================


; This function convert a MAC Address Byte (e.g. "1f") to a char
Func HexToChar($strHex)
    
    Return Chr(Dec($strHex))
    
EndFunc

; This function generate the "Magic Packet"
Func GenerateMagicPacket($strMACAddress)
    
    $MagicPacket = ""
    $MACData = ""
    
    For $p = 1 To 11 Step 2
        $MACData = $MACData & HexToChar(StringMid($strMACAddress, $p, 2))
    Next
    
    For $p = 1 To 6
        $MagicPacket = HexToChar("ff") & $MagicPacket
    Next
    
    For $p = 1 To 16
        $MagicPacket = $MagicPacket & $MACData
    Next
    
    Return $MagicPacket
    
EndFunc

Edited February 12, 2007 by ReverendJ1

[/dev/null]

Hi all. Just thought I would help out a little here. In case you are having trouble figuring out your broadcast address, I made it so Olish's script will automagically figure out your Broadcast IP of the network you are on and use it. This is more accurate than Trolderik's script, as it is how you are actually supposed to figure out the broadcast address (see ktulu789's post above mine). I also added an inputbox for the MAC address. Oooh spiffy.

Hi, you script does not work for a Subnet mask of 255.255.255.248. You should rethink your broadcast calculation algorithm...

Cheers

Kurt