Configure Wake On Lan to wake up a PC that is powered off. This is important in the era of remote computing. Network admins or users that work away from the office no longer need to be physically at their computer in order to turn it on and begin working from a remote location. Wake On LAN, or WOL, is a feature built into many computers. It is BIOS and network card specific, so depending on your setup, you may not have the ability use it. But it does take a little effort to configure Windows wake on LAN.
You’ll need to do the following to Configure Wake On Lan:
- Enable WOL in your computer’s BIOS.
- Enable WOL on the computer’s network adapter.
- Configure a port-forwarding rule in your router.
- Configure the port-forwarding rule in your router’s firewall.
Configure Wake On Lan – Enable Wake On LAN in BIOS
When you boot your computer, press the appropriate key to enter your BIOS setup. If you don’t know what that key is, watch the screen carefully and it will flash. This key might be F2 or F10 or even ESC. Once in the BIOS, look for your power options or network card options. The terminology will vary based on your computer’s BIOS. If you have the ability, you should find and entry for Wake On LAN. Enable it and press F10 to save and exit.
Configure Wake On Lan in Network Adapter
Next, you’ll need to make sure your computer’s network card is configured to use WOL. To do this in Windows 7, go to the Control Panel and open Network and Sharing. In the pane to the left, click Change Adapter Settings. Right-click the adapter and select Properties then the Configure button. Under the Power Management, make sure the box for Allow this device to wake up the computer is checked.
Then, under the Advanced tab make sure the Wake On options are enabled.
You will need to know the IP and MAC address for the network adapter. To find them, go to Start and type cmd in the dialogue box and hit OK. At the command prompt, type ipconfig /all and hit enter. Write down your IP address and MAC address (Physical Address).
Note: You should consider making the IP address on this connection “Static.” If the router were to change the IP address through DHCP, you would not be able to perform the Wake On LAN.
Router Wake On LAN Configuration
Since you will typically be using Wake On LAN when you are away from the location, you need to set up a few rules in your router before this will work. Your router uses a public IP address and issues private IP addresses to computers on your network. Because of this, you’ll need to configure port forwarding. When the request comes in to the public address, the router will know which computer on the network to send it to.
Port-forwarding is configured differently in different routers. Refer to your router documentation if you cannot locate the port-forwarding setup.
Create a port forwarding rule and name it WakeOnLAN or something similar. The Protocol will be UDP, Source Port will be ANY and Destination Port will be Single and 9.
You will then have to locate your router’s firewall options and create the port-forwarding. Again, the process of doing this will vary based on your router. You will need to associate the IP address of the computer with the port forwarding rule you created above.
Create A Magic Packet
You can test the setup using Broadband Report’s Wake On LAN Tool. Type in your public IP address which you can find at WhatsMyIP.com. Type in the MAC address and your IP address and then click the Wake Up! button. Your PC should spring to life if everything is configured properly.
You will now need a way to trigger your own Magic Packet. You can download a free program called WOL Magic Packet Sender. Install that program on the computer where you want to initiate the wake up signal from so you can wake up the remote PC whenever you need to.
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