Wake On Lan.

First, it has to be enabled in BIOS (WoL)

After that, in Windows, check the NIC (Properties, Configurate) or Device MAnager, Properties, Advance and Allos WoL.

Then, send a magic packet to the MAC, IP and port 7 or 9.

On Linux, do the same with the BIOS, go to the eth0 Port (ethtool eth0) and check that Wake On Lan has de g letter, if not:

If you are using RHEL / SL / Fedora / CentOS Linux, edit /etc/sysconfig/network-scripts/ifcfg-eth0:
# vi /etc/sysconfig/network-scripts/ifcfg-eth0

Add / modify the following line:

 
ETHTOOL_OPTS="wol g"
 
OR

 
ETHTOOL_OPTS="wol g autoneg off speed 100 duplex full "
 
Save and close the file. If you are using Debian / Ubuntu Linux, edit /etc/network/interfaces:
# vi /etc/network/interfaces

Append the following to eth0:

 
auto eth0
iface eth0 inet static
address 192.168.1.1
netmask 255.255.255.0
gateway 192.168.1.254
        post-up /sbin/ethtool -s eth0 wol g
        post-down /sbin/ethtool -s eth0 wol g
		
		Finally, use a WoL program and put
		MAC Address
		IP
		Subnet
		Port 7, 9 or 2114