Wake on lan works

I previously tried to get wake-on-lan to work and had no luck. I was never sure if my code was wrong, or if a firewall was filtering the command of if my motherboard just doesn't support it (probably the latter).
Today I got a new computer and the old wake-on-lan.py worked!

So here's the program that works for me.


#!/usr/bin/env python

import socket
import struct
import sys

def wake_on_lan(macaddress):
 """ Switches on remote computers using WOL. """

 # Check macaddress format and try to compensate.
 if len(macaddress) == 12:
   pass
 elif len(macaddress) == 12 + 5:
   sep = macaddress[2]
   macaddress = macaddress.replace(sep, '')
 else:
   raise ValueError('Incorrect MAC address format')

 # Pad the synchronization stream.
 data = ''.join(['FFFFFFFFFFFF', macaddress * 20])
 send_data = ''

 # Split up the hex values and pack.
 for i in range(0, len(data), 2):
   send_data = ''.join([send_data,
                        struct.pack('B', int(data[i: i + 2], 16))])

 # Broadcast it to the LAN.
 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
 sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
 sock.sendto(send_data, ('255.255.255.255', 7))
 sock.close()

if __name__ == '__main__':
  machines = {
    'hera' : '01-23-45-67-89-AB',
    'zeus' : 'CD:EF:01:12:45:67',
  }
  machine = 'scott'
  if len(sys.argv) > 1:
    machine = sys.argv[1].strip()
  wake_on_lan(machines[machine])


In the BIOS settings I turned on both "PME Event Wakeup" and "Power On Ring" (neither of which is written "wake on LAN").

I'm quite happy with the computer, it has a very silent power supply and I also got a 22" Samsung LCD to go with it.
No I'll have to go and setup my old computer for Victor.

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