What is it, what is it for and how to Activate or Configure Wake on LAN?

Wake on LAN for those who do not know, includes a special protocol, which gives us the possibility of turning on a computer remotely, without the need to be pressing any button.

This protocol is possible, through the option «Very low consumption» This protocol is found within computers with the sole task of making use of different key and very basic functions, with respect to a consumption electric, which is practically priceless.

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Requirements to use the Wake on LAN protocol

  • It is important that the motherboard is compatible as the «very low consumption» mode, this will be the crucial factor to allow the reactivation of the same, starting from the net. Likewise, this must be connected to the current in order to start.
  • The network card must support this protocol. Regardless of whether it is simple or that it connects to the connector which corresponds to the motherboard.

How does the Wake on LAN package work?

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To be able to start a computer in such a way that this is remote through this protocol, it is important that we make use of the so-called “magic pack”.

Said network packet is formed thanks to a 6-byte string, which has a value of 255 in hexadecimal («FF FF FF FF FF FF»), the same is followed by 16 repetitions from the direction MAC of said computer, which begins to boot remotely.

These ports are generally used by this protocol which is 7 and 9 within UDP. Therefore, when the network card of your computer begins to detect this packet, it does a check on the 16 MAC, which correspond to yours. Thus it begins to send a small electrical signal, which reaches the motherboard, in order to start.

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How to configure our computer for WoL

Although one of the most important configurations is that of the BIOS, if we have some kind of problem, it is most likely that we will have to configure our Windows, in order to be able to use this protocol without any problems.

For this action we must start by opening the device manager of the Windows system that we have and within the hardware list, begin to open the properties that our network card has.

We will see a list of «Advanced Options» once there, we must make sure that said section is related to the «Magick Packet» and that it is enabled.

Within Mac OS X we must make sure that, in the energy section, the option of «Activate the computer over Ethernet»

What are the best applications to start a computer remotely

When it has been verified that the hardware is compatible with said protocol and that, in addition, the function within the BIOS is enabled, what we must do is use an application, which is designed in such a way that it generates a «Magic package» and that it is sent to the network, in order to start our computer.

For this, there are different types of applications, which are adapted for any type of system. Therefore, it is possible that a computer, a Smartphone, or even a tablet,

Here is a list of applications that you will surely want to try:

  • Wake on LAN GUI – For Windows computers.
  • Wake-on-LAN – To boot a PC from Android.
  • Wake – WoL (Wake on LAN) – To boot a PC from iOS.

In order to use these applications, we only have to enter the MAC and the IP from our computer and automatically, when it is sent and received correctly, the destination computer will begin its startup process.

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