Ubuntu 24.04 - Wake on Lan - wol

**oisik** · July 16th, 2024

Hi all,
I dont know why, but my search doesnt show my any hits regarding wol/ wake on lan.

I am pretty new to Ubuntu, but i could flee finaly from windows

Now I would like to enable wol.

I set a static IP on my router, where i can force wol.
on my Ubuntu 24.04 i installed ethtool and activated wol by using "sudo ethtool -s <nic> wol g"

When i shut down the computer i can wake up my server using the gui from my router.
but, in a unspecific time, wake on lan does not work and i discoverd, that my wol on my nic is disabled "wol d".

How can i set this parameter permanent?
I found some documents which ask to edit the /etc/network/interfaces file. BUT, i dont have that file and if i try to create it by "sudo echo > inferfaces" it says no permission.

can please some expert can help

Thank you

**ActionParsnip** · July 16th, 2024

Should help
https://pimylifeup.com/ubuntu-enable-wake-on-lan/

**oisik** · July 16th, 2024

Hi,

thanks for the quick response. I try it, but the nic is after reboot still not in the wol status.
it seems like the service is not running at the startup.

xxx@xxx:~$ sudo systemctl status wakeonlan.service
○ wakeonlan.service - Enable Wake On Lan
Loaded: loaded (/usr/lib/systemd/system/wakeonlan.service; enabled; preset: enabled)
Active: inactive (dead) since Tue 2024-07-16 17:23:56 CEST; 3min 5s ago
Main PID: 1126 (code=exited, status=0/SUCCESS)
CPU: 5ms

Jul 16 17:23:56 xxx systemd[1]: Starting wakeonlan.service - Enable Wake On Lan...
Jul 16 17:23:56 xxx systemd[1]: wakeonlan.service: Deactivated successfully.
Jul 16 17:23:56 xxx systemd[1]: Finished wakeonlan.service - Enable Wake On Lan.

ethtool:
Supports Wake-on: pumbg
Wake-on: d
Link detected: yes