WakeOnLAN

The WakeOnLAN application was designed to be a small command line utility makes possible to switch on a computer from a second one by sending a "Magic Packet". Both of computers can be located on the same LAN or on the different LAN segments.
Requirements to use the WOL (Wake-On-LAN)
- An ATX motherboard with an onboard, 3-pin "WOL" connector.
- An ATX power supply that meets ATX 2.01 specifications.
- A network card that can support WOL with its cable to the motherboard properly installed.
- In the BIOS Power Management, you must enable the LAN Wakeup option.
Use the following command in a Windows DOS box:
MC-WOL ethernet-address [/a ip-address] [/p password]
A description for each argument follows:
-  ethernet-address - Ethernet MAC address of the network adapter of the destination computer.
- ip-address - Multicast IP address of the LAN (see below) where the destination computer is located. This argument is not required if computers are located on the same LAN.
- password - Is only required for a few adapter types. The password should be specified in ethernet hex format (i.e. 01:AA:02:BB or 01:AA:02:BB:03:CC:04:DD).
Example1: MC-WOL 00:01:02:58:A3:C7
If a target computer is on another LAN, IP address must be specified. For example you have a segment using the class C network 192.168.5.0. The broadcast ip address of this subnet is 192.168.5.255 - thats what you use as the destination IP address on the packet.
Example2: MC-WOL 00:01:02:5C:A1:B2 /a 192.168.5.255
This multicast packet will be delivered by router(s) to the ethernet switch that comprises the network segment.