How does Wake-on-LAN work?
TeamViewer’s Wake-on-LAN feature enables you to turn on a computer that is turned off or in sleep mode. This can be done via another computer within the same network or via its public address. The first method simply requires you to configure the hardware of the target computer and configure TeamViewer on it in order wake it up from another device connected on the network. For the second method, you’re required to configure the hardware of the target computer, then configure the router for port forwarding and configure TeamViewer in order to use Wake-on-LAN. It’s also possible to do via your tablet or smartphone
What port does Wake-on-LAN use?
Wake-on-LAN uses a UDP (User Datagram Protocol) port. Many utilities use ports 7 or 9, but you can use any port you like for WoL. The UDP port needs to be forwarded to all IP addresses behind your router—it’s not possible to forward it to a specific IP address. For the action to work, i.e. for the computer to wake up, the Wake-on-LAN packet must be forwarded to every device running behind your router. A device will only wake up if the information in the WoL packet matches it.
What are the advantages of Wake-on-LAN?
With the Wake-on-LAN feature from TeamViewer, you can remotely access and control devices no matter whether they’re switched on or off. This not only provides great flexibility in terms of 24/7 access to devices and resources, it can also improve energy efficiency since devices can be turned off when not in use. In this way, TeamViewer supports remote working and IT support in a comprehensive fashion.