
There can be several motivations to do this save on power, save on the environment, save on wear-and-tear of your equipment, etc.

WOL is probably most commonly used to wake up a server or NAS, just before access to these machines is needed – for example a media server, which can sleep all day long until you want to watch a movie. This means for example your home network. Wake On LAN, or WOL, is a Ethernet standard that allows you to “wake up” computers or network devices that are in stand-by, and is originally intended for use in a local network.

I've only got a basic understanding of port forwarding. This problem can sometimes be avoided by selecting a smaller subnet mask for the local network (e.g. Sometimes routers do not allow a broadcast address ending in ".255" as the port forwarding destination. This configuration makes it possible to wake up all computers in the router's local network that have been configured according to the directions mentioned above.Įxample: If the local network is configured with 192.168.1.0 and the subnet mask 255.255.255.0, then port forwarding must be configured from UDP port 9 to 192.168.1.255:9. 9) to the broadcast address of the local network (this often ends in ".255"). In order to be able to wake up all computers in the local network, set up port forwarding as described in the router manual from an incoming UDP port (e.g.

Therefore I need to use the public address option. I need to access computers on a network from a computer outside the network.
