Either some (preferably free/OS) app or a command line tool will do.
Try WakeOnLan or wol — both are open source, both are available through MacPorts (and possibly through Homebrew as well).
WakeOnLan appears to no longer be available - the readpixel.com site linked above is being flagged as malware by Chrome, and it was also recently removed from homebrew-cask - github.com/Homebrew/homebrew-cask/issues/104849. I'd recommend using the open-source perl script from the homebrew formula in the answer below.– AlexTMay 9, 2021 at 9:24
Install the wakeonlan package using Homebrew:
$ brew install wakeonlan
(It's a Perl script for waking up computers via Wake-On-LAN magic packets.)
When installed, you can send a "magic packet" from your Terminal to any device using its IP (Internet Protocol) and MAC (Media Access Control) address.
Here's an example of a typical use:
$ wakeonlan -i 192.168.1.255 -p 1234 01:02:03:04:05:06
The scripts takes 2 arguments, the MAC address of the NIC, and an IP address.
Note: The IP address argument is tricky and isn't what you'd think.
For a NIC on your local subnet, use the broadcast-address of this subnet. (e.g. subnet 192.168.10.0 with netmask 255.255.255.0, use 192.168.10.255)
For example, I have a Synology NAS manually configured with the IP address of
10.0.1.100 with a subnet mask of
255.255.255.0 and a router address of
The correct IP address to use is not that of the device, but instead the broadcast-address of the subnet.
Continuing on my example, I used the following command to successfully wake up my Synology:
$ wakeonlan -i 10.0.1.255 -p 7 01:02:03:04:05:06
(Naturally, substitute the actual values of your device and network for your situation.)
You can get more information from the wakeonlan man page,
man makeonlan, or a quick glossary of commands from
1Just a slight hint: looks like the command has three parameters, for -i the broadcast address (not the IP address), for -p the magic packet (which you do not explain, looks like you are showing 1234 or 7 as magic packet) and third parameter is the Ethernet (or MAC-) address. Jul 1, 2019 at 12:32
-psets the destination port, actually (and defaults to 9).– user820330Jul 29, 2019 at 11:21
FWIW, straight out of the box this worked for me to wake an Intel NUC using just
wakeonlan 94:c6:91:a1:68:22. No parameters necessary. To be fair, the NUC is on my home LAN and I got the MAC address by running
arp -aand recognising the IP address, so obviously the ARP table was still valid. Sep 3, 2022 at 12:25
mkdir -p $HOME/bin curl https://raw.githubusercontent.com/jpoliv/wakeonlan/master/wakeonlan -o ~/bin/wakeonlan chmod +x ~/bin/wakeonlan