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--- linux:linux-tutorials:enable-wol-persistent [2024/02/07 15:41] – created Zyzonix
+++ linux:linux-tutorials:enable-wol-persistent [2024/12/25 14:09] (current) – [Enable automatically at boot] Zyzonix
@@ Line 1: / Line 1: @@
 ===== Enable Wake-on-LAN persistent =====
+<callout type="info" icon="true">This guide was tested on Ubuntu 22 and Debian 11/12.</callout>
+==== Check current setting and enable manually ====
+Firstly find out the interface on which WoL should be enabled. Therefore use ''ifconfig'' that is shipped with the ''net-tools''-package on Debian/Ubuntu:
+<code bash>ifconfig</code>
+Your output may look like this:
+<code bash>
+enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
+        inet 192.168.0.2  netmask 255.255.255.0  broadcast 192.168.0.255
+        inet6 fe80::ed26:e33:5d38:2468  prefixlen 64  scopeid 0x20<link>
+        ether xx:xx:xx:xx:xx:xx  txqueuelen 1000  (Ethernet)
+        RX packets 138808  bytes 178312866 (178.3 MB)
+        RX errors 0  dropped 3324  overruns 0  frame 0
+        TX packets 70435  bytes 59140948 (59.1 MB)
+        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
+lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
+	[...]
+wlp2s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
+        ether xx:xx:xx:xx:xx:xx  txqueuelen 1000  (Ethernet)
+        RX packets 0  bytes 0 (0.0 B)
+        RX errors 0  dropped 0  overruns 0  frame 0
+        TX packets 0  bytes 0 (0.0 B)
+        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
+</code>
+Then check the current Wake-on-LAN-state with ''ethtool''. (Package to install has the same name):
+<code bash>sudo apt install ethtool</code>
+<code bash>ethtool <interface></code>
+Replace ''<interface>'' for examle with ''enp1s0'', if this is the ID of your interface.
+The output may now look like this:
+++++ Show/Hide |
+<code bash>
+Settings for enp1s0:
+        Supported ports: [ TP    MII ]
+        Supported link modes:   10baseT/Half 10baseT/Full
+baseT/Half 100baseT/Full
+baseT/Full
+        Supported pause frame use: Symmetric Receive-only
+        Supports auto-negotiation: Yes
+        Supported FEC modes: Not reported
+        Advertised link modes:  10baseT/Half 10baseT/Full
+baseT/Half 100baseT/Full
+baseT/Full
+        Advertised pause frame use: Symmetric Receive-only
+        Advertised auto-negotiation: Yes
+        Advertised FEC modes: Not reported
+        Link partner advertised link modes:  10baseT/Half 10baseT/Full
+baseT/Half 100baseT/Full
+baseT/Full
+        Link partner advertised pause frame use: No
+        Link partner advertised auto-negotiation: Yes
+        Link partner advertised FEC modes: Not reported
+        Speed: 1000Mb/s
+        Duplex: Full
+        Auto-negotiation: on
+        master-slave cfg: preferred slave
+        master-slave status: slave
+        Port: Twisted Pair
+        PHYAD: 0
+        Transceiver: external
+        MDI-X: Unknown
+        Supports Wake-on: pumbg
+        Wake-on: d
+        Link detected: yes
+</code>
+++++
+Important are the following lines:
+<code bash>
+        [...]
+        Supports Wake-on: pumbg
+        Wake-on: d
+	[...]
+</code>
+If the line ''Supports Wake-on:'' contains **''g''**, then Wake-on-LAN ist supported.
+If the line ''Wake-on:'' already says ''Wake-on: g'', then WoL is already enabled, if not, you can enable it with:
+<code bash>sudo ethtool -s <interface> wol g</code>
+==== Enable automatically at boot ====
+If not enabled in BIOS WoL has to be enabled before shutting down. This can be done by a system service (systemd-based distro required):
+Firstly create the service file:
+<code bash>sudo nano /etc/systemd/system/wol-enable.service</code>
+And add this content:
+<code bash>
+[Unit]
+Description=Configure Wake-up on LAN
+After=network-online.target
+[Service]
+Type=oneshot
+ExecStart=/sbin/ethtool -s <interface> wol g
+[Install]
+WantedBy=basic.target
+</code>
+Remind to change the ''<interface>''.
+Then save the file and enable the service with:
+<code bash>sudo systemctl enable wol-enable.service</code>
+// Sourced from [[https://wiki.ubuntuusers.de/Wake_on_LAN/|wiki.ubuntuusers.de]]//