Wake On Lan

Wake-On-LAN is the generic name for the AMD "Magic Packet" technology. The basic idea is that the network adapter has a very-low-power mode to monitor the network for special packet data that will wake up the machine.
 
From AMD;

Magic Packet Technology Details
Once the LAN controller has been put into the Magic Packet mode, it scans all incoming frames addressed to the node for a specific data sequence, which indicates to the controller that this is a Magic Packet frame. A Magic Packet frame must also meet the basic requirements for the LAN technology chosen, such as SOURCE ADDRESS, DESTINATION ADDRESS (which may be the receiving station's IEEE address or a MULTICAST address which includes the BROADCAST address), and CRC. The specific sequence consists of 16 duplications of the IEEE address of this node, with no breaks or interruptions. This sequence can be located anywhere within the packet, but must be preceded by a synchronization stream. The synchronization stream allows the scanning state machine to be much simpler. The synchronization stream is defined as 6 bytes of FFh. The device will also accept a BROADCAST frame, as long as the 16 duplications of the IEEE address match the address of the machine to be awakened. If the IEEE address for a particular node on the network was 11h 22h 33h 44h 55h 66h, then the LAN controller would be scanning for the data sequence (assuming an Ethernet Frame):
DESTINATION SOURCE MISC. FF FF FF FF FF FF 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 11 22 33 44 55 66 MISC. CRC.

There are no other restrictions on a Magic Packet frame. For instance, the sequence could be in a TCP/IP packet, an IPX packet, etc. The frame may be bridged or routed across the network, without affecting its ability to wake up a node at the destination of the frame.

If the LAN controller scans a frame and does not find the specific sequence shown above, it discards the frame and takes no further action. If the controller detects the data sequence, however, then it alerts the PC's power management circuitry to wake up the system.
 
is there any way to send this signal to your machines w/o having a special tool? i.e. command lines in windows/linux? is there a way to send wake on lan signals via the internet to wake up a computer at home for tsweb?
 
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