scripted WOL?

[gneville]

Is it possible to script WOL of a device on my network with the Merlin firmware?

I saw a script that does something cleverer than this but all I want is the WOL function, thanks!

 

[ColinTaylor]

Yes, it should be fairly straight forward. Use the ether-wake command in your script.

# ether-wake
BusyBox v1.20.2 (2015-03-23 22:34:23 MST) multi-call binary.

Usage: ether-wake [-b] [-i iface] [-p aa:bb:cc:dd[:ee:ff]] MAC

Send a magic packet to wake up sleeping machines.
MAC must be a station address (00:11:22:33:44:55) or
a hostname with a known 'ethers' entry.

        -b              Send wake-up packet to the broadcast address
        -i iface        Interface to use (default eth0)
        -p pass         Append four or six byte password PW to the packet

 

[gneville]

Hi Colin,

Thanks for the reply, looks just the thing!

So I guess I write my ether-wake command , and save it in /jffs/scripts/ - but I'm not sure how I would schedule this script to run once a day, for example.. can you give me any pointers?

Thanks!

 

[ColinTaylor]

Just use "cru" to schedule a cron job.

# cru

Cron Utility
add:    cru a <unique id> <"min hour day month week command">
delete: cru d <unique id>
list:   cru l

For example to run a script at 23:00 every day:

# cru a MyWOL "00 23 * * * /jffs/scripts/MyWOL.sh"
# cru l
00 23 * * * /jffs/scripts/MyWOL.sh #MyWOL#

Of course, if you reboot your router the cron entry will be lost so you probably want to put your cru command in a "services-start" script so that it runs at boot time.

https://github.com/RMerl/asuswrt-merlin/wiki/User-scripts

 

[ColinTaylor]

If your WOL requirements are really simple you could probably do away with the WOL script altogether and just put ether-wake in the cru command.

So your services-start script would look something like this:

#!/bin/sh
cru a WOL "00 23 * * * /usr/bin/ether-wake -b -i br0 xx:xx:xx:xx:xx:xx"

 

[gneville]

That's great, just what I wanted. Thanks!