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I know the Wake on LAN standard, but I don't understand what the wake on pattern match option means. What does this option mean?

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some more information would be nice - where is this? In the bios or elsewhere? –  Journeyman Geek Mar 3 '13 at 14:33

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up vote 5 down vote accepted

"Wake On LAN" makes the system wake on the "magic packet".

The "Wake on pattern match" option instead checks for packets that matches the operating-system-specified patterns; for example, an ARP request for the computer's address, or a TCP connection attempt.

The default patterns on a Windows 7 system are:

  • magic packet
  • NetBIOS name query
  • TCPv4 SYN
  • TCPv6 SYN
  • IPv6 Neighbour Solicitation

(There's no ARP in the list since the device is expected to support "ARP Offload" – that is, reply to ARP requests with OS-set address by itself.)

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