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Thread: wake on lan

  1. #1
    Senior Member
    Join Date
    Sep 2003

    wake on lan

    hi, i do not know which forum to post this message in but if you could please help.
    Has anyone tried to make an Intel pro 10/100 Nic to wake on lan remotely, or evel locally.
    If so could you please tell me what i am missing.
    I have the BIOS setup (i hope correctly), the 3 wire cable plugged to the motherboard, and
    the NIC card is advertized with the WOL option as its features.

    Thank you

  2. #2
    Senior Member DeadAddict's Avatar
    Join Date
    Jun 2003
    These might help you out a bit.

  3. #3
    HeadShot Master N1nja Cybr1d's Avatar
    Join Date
    Jul 2003
    Boston, MA
    Here you go buddy:
    Wake on LAN
    2.1 What is it?

    The ability to switch on remote computers through special network packets. This only works with network cards and motherboards that are Wake on LAN compliant.
    2.2 How does it work?

    WOL is based on the following principle:

    When the PC shuts down, the NIC still gets power, and keeps listening on the network for a 'magic' packet to arrive. This packet must contain a certain byte-sequence, but can be encapsulated in any kind of packet (IPX, IP, anything). Take a look at the code for the magic sequence.

    This program uses UDP for sending the packet. The complete UDP packet, sent over an ethernet interface, looks something like this:

    [ethernet header][IP header][UDP header][Magic sequence][CRCS]

    The only goal of the script is to send this packet over the network. It expects no returning data, since the NIC only listens, and does not reply anything.

    For a more detailed description of the protocol, see the AMD white paper.
    2.3 Hardware requirements

    Green PC, motherboard BIOS support, network cards, PCI 2.2, Operating system support (Windows 95 - DELL's document -, Windows 98, Windows 2000)


    Most modern ATX motherboards should have a 3-pin Wake-on-LAN connector near the PCI slots and should included BIOS support for Wake-on-LAN power up. If you have an Award BIOS check the Power Management Setup for this option.
    Network cards

    The network card should also include a 3-pin Wake-on-LAN connector. One of the network cards that includes this connector is the Intel Pro/100+ (chipset 82559)
    2.4 Wake-up frame

    A Wake-up frame is a special data packet containing the Ethernet address of the remote network card. Somewhere in this frame should exist a byte stream (magic sequence) composed by, at the least, 16 times the repetition of the Ethernet address and preceded by a synchronization stream of 6 bytes of FFh.
    Magic sequence

    If the Ethernet address of a target computer is 01:02:03:04:05:06 (6 bytes), then the LAN controller of that machine should be looking for the following sequence


    inside the frame.
    2.5 Ethernet addresses

    An Ethernet Address ia a six octets (48 bits) number that uniquelly identifies every network interface card (NIC). The first three octects (24 bits) are known as the Organizationally Unique Identifier (OUI) and identifies its manufacturer.

    The IEEE organization maintains a list of the OUIs in the following web page: IEEE OUI and Company_id Assignments.


    Ethernet: the Definitive Guide
    Charles E. Spurgeon

    Homepage: Author homepage.

    IEEE 802.3 Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
    Access Method and Physical Layer Specification
    Institute of Electrical and Electronics Engineers

    Since May 14, 2001 the IEEE Local and Metropolitan Area Network (802) standards can be downloaded from the IEEE web site (

    How to obtain Ethernet addresses

    Local NICs:

    * Window 9x - Run the program "winipcfg.exe"
    * Windows NT & Windows 2000 - Run the program "ipconfig.exe /all"
    * Linux - Run the program "ifconfig"

    Other methods:

    * Ping a remote machine and check the arp table
    * Ping a broadcast address and check the arp table
    * Check the database of the arpwatch daemon
    * Check the the leases and configuration file of the DHCP daemon


    * ifconfig
    * ping -b -c 2 -i 15
    * cat /proc/net/arp
    * arp -a
    * static entries: /etc/ether

    Windows NT

    * ipconfig /all
    * netbstat -a local_ip_addr
    * ping
    * arp

    2.6 TCP/IP broadcast addresses


    Internetworking with TCP/IP
    Volume I: Principles, protocols, and architecture (third edition)
    Douglas E. Comer
    Prentice Hall

    http://<b><a rel="nofollow" href="ht...2.html</a></b>

  4. #4
    AO French Antique News Whore
    Join Date
    Aug 2001
    1) Get the MAC address of your Network Adapter (You can use Aida32 for that - )

    2) Download this :

    3) Run the program with /? and check the syntax.

    If you computer bios is set correctly, your computer will boot up!

    Good Luck.
    -Simon \"SDK\"

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