Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to configure the wireless wake-up function for the Linux wireless network card. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

I have a network storage (NAS) server that backs up all my devices. However, I had trouble backing up my Linux notebook. I can't back it up when it sleeps or hangs. When I use an Intel-based wireless card, can I configure WiFi on my laptop to accept wireless wake-up?

Network Wake up Wake-on-LAN (WOL) is an Ethernet standard that allows servers to be turned on through a network message. You need to send a "magic packet" to the Ethernet card and motherboard that supports network wake-up in order to open the awakened system.

Linux-configire-wake-on-wireless-lan-wowlan

Wireless Wake up wireless wake-on-lan (WoWLAN or WoW) allows the Linux system to enter low power consumption mode to keep the wireless network card active and still connected to the hotspot. This tutorial demonstrates how to enable WoWLAN / WoW mode on a Linux laptop or desktop computer with a wireless network card installed.

Note that not all wireless network cards and Linux drivers support WoWLAN.

Grammar

On Linux, you need to use the iw command to view and manipulate the wireless device and its configuration. Its format is:

Iw commandiw [options] command lists all wireless devices and their functions

Enter the following command:

$iw list$ iw list | more$ iw dev

The output is:

Phy#0 Interface wlp3s0 ifindex 3 wdev 0x1 addr 6c:88:14:ff:36:d0 type managed channel 149 (5745 MHz), width: 40 MHz, center1: 5755 MHz txpower 15.00 dBm

Please write down this phy0.

View the current status of Wake up Wireless

Open the terminal and enter the following command to view the status of the wireless network:

$iw phy0 wowlan show

The output is:

How to enable Wireless Wake up in WoWLAN is disabled

The enabled syntax is:

Sudo iw phy {phyname} wowlan enable {option}

Among them

{phyname}-use iw dev to get its physical name.

{option}-can be any, disconnect, magic-packet, etc.

For example, I want to turn on Wake up Wireless for phy0:

$sudo iw phy0 wowlan enable any

Or:

$sudo iw phy0 wowlan enable magic-packet disconnect

Check it out:

$iw phy0 wowlan show

The result is:

WoWLAN is enabled: * wake up on disconnect * wake up on magic packet test it

Hang up your laptop or go into hibernation mode:

$sudo sh-c 'echo mem > / sys/power/state'

Use the ping command to send an ping request from a NAS server

$ping your-laptop-ip

You can also use the wakeonlan command to send magic packets:

How does $wakeonlan laptop-mac-address-here$ etherwake MAC-Address-Here disable Wake-up Wireless?

The syntax is:

$sudo phy {phyname} wowlan disable$ sudo phy0 wowlan disable

For more information, read the man page of the iw command:

Man iw$ iw-help above is how to configure wireless wake-up function for Linux wireless network card. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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