You can use your tablet or smartphone to wake up a computer/laptop via Wake-on-LAN.
#Wakeonlan host unkown how to#
How to wake up my computer with my tablet or smartphone
Configure the router for port forwarding.If yes to all of the above, the following steps are necessary to use Wake-on-LAN via a public address: Does TeamViewer start automatically with the operating system on the target computer?.Does the router have a public address (either a fixed IP address or a public domain address)?.Does the router support port forwarding?.Is the target computer connected to the internet via a router?.Is the target computer connected to the network using a network cable?.The configuration effort of this method is higher and more complex than in method A because you have to set up your router accordingly. In these cases, you can configure TeamViewer so that the target computer is woken through this address. How to wake up the target computer via its public addressĬhoose this method if the target computer can be reached via a public address. This is the case if you have either a fixed, static IP through your Internet provider or if your router has a public domain address with the help of a dynamic DNS provider. Please refer to the TeamViewer Wake-on-LAN manual for a detailed description of how to set up Wake-on-LAN with TeamViewer. Configure TeamViewer on the target computer.Configure the hardware of the target computer.If you can match all the above, you can wake up the target computer in three easy steps: Is the second computer turned on 24/7 (the operating system and TeamViewer are running)?.Does TeamViewer start automatically with the operating system on both computers?.Is a second computer (PC, Mac, Linux) located on the same network?.Is the target computer connected to the internet using a network cable?.Is the target computer located in a network?.To make WOL work on a different network than where your server is connected, you need to use directed broadcast packets (unicast packets sent to broadcast address of remote network, properly configured remote router will allow the packet and send it as a broadcast on the intended network).If you can answer the following questions with "Yes", this is the appropriate method: To make this work you need to use broadcasts, there is no other reliable way. Once the arp entry times out, the router (or PC) will fail to encapsulate the WOL packet since it has nothing to put in the dest-mac field.
#Wakeonlan host unkown Pc#
This works because the router (or the WOL-packet generating PC if in the same subnet) has an arp entry (4 hour timeout) and can create a packet destined for the correct machine, however the switch either knows the port the mac-address belongs to (WOL sent within mac aging time) or has already timed out that mac-address so it treats the unknown destination as a broadcast. You state that unicast WOL works when the device has been turned on and then back off, but you don't state if it stops working at some time after the machine is shut off. to a Layer 3 device like your PC or a router it means 'this device has talked to the machine at some time in the last 4 hours' (depends on arp timeout), to a Layer 2 device like a switch it means 'the switch has seen a packet with that source mac-address some time in the last 5 minutes' (depends on mac aging time). 'Active on the network' means different things to different devices though. Only if I have started the machine manually at least once, the machine can be waked up afterwards by sending the WOL command directly to its IP address.ĭoes someone have an idea why the machine cannot be waked up directly via its IP address if it was turned off for a longer time and why this works if I use "Broadcast" as WOL method?Īs comment mentions, you can't send unicast traffic to a machine that isn't active on the network at that time.If I send the WOL command directly to that workstation (using IP address, subnet mask, DNS name) the machine will not wake up.If I send the WOL command via network broadcast (only allowed for testing), the machine wakes up successfully.Start Condition: Machine was turned off for one or more days Now the following scenarios happen if I try to wake up the machine: The workstation that sends the WOL command is in the same subnet as the workstation to be waked up. The network card is configured to obtain the IP address automatically.The router will always assign the same IP address to that workstation (MAC address).WOL is enabled in the BIOS and in the settings of the network card.The following is true for the workstation to be waked-up: I am facing a strange problem while setting up wake-on-LAN in our company network.
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