Wolz

Broadcast Wake on Lan (WoL) magic packet to network devices in the local network.
WoL only works if the target network interface supports it and is not in low power mode.
Check arch wiki on this subject to setup your device to Wakup on LAN.

Usage

Run wolz to view the help text.

Troubleshooting

This tool broadcasts the magic packet to the broadcast address (and port 9) of all networks the physical interfaces connect to.

Install tcpdump to inspect the network traffic on the receiving node. And execute the tool from the source node.

$> # Update `enp42s0` to your interface name.
$> sudo tcpdump -i enp42s0 udp and port 9 -n -XX
$>
$> # Sample output for mac aa:bb:cc:dd:ee:ff
18:56:47.573848 IP 192.168.0.10.34801 > 192.168.0.255.9: UDP, length 102
0x0000:  ffff ffff ffff dca6 324f e820 0800 4500  ........2O....E.
0x0010:  0082 adf8 4000 4011 0a19 c0a8 000a c0a8  ....@.@.........
0x0020:  00ff 87f1 0009 006e 8b27 ffff ffff ffff  .......n.'......
0x0030:  aabb ccdd eeff aabb ccdd eeff aabb ccdd  ................
0x0040:  eeff aabb ccdd eeff aabb ccdd eeff aabb  ................
0x0050:  ccdd eeff aabb ccdd eeff aabb ccdd eeff  ................
0x0060:  aabb ccdd eeff aabb ccdd eeff aabb ccdd  ................
0x0070:  eeff aabb ccdd eeff aabb ccdd eeff aabb  ................
0x0080:  ccdd eeff aabb ccdd eeff aabb ccdd eeff  ................

To debug TCP packets intended to wolz-daemon, run

$> sudo tcpdump -i lo tcp and port 21367 -n -XX