Hi,

My Guacamole-Client/Tomcat installation is running on a gateway, and the target 
machines (RDP, VNC, etc.) are in a subnet behind a firewall. This firewall 
"forwards" the wake-on-lan packets to that LAN through the use of socat. I run 
it like this on the firewall because I have different netmasks there:

socat -u -T1 UDP-LISTEN:7,fork UDP-DATAGRAM:10.215.145.255:9,broadcast
socat -u -T1 UDP-LISTEN:8,fork UDP-DATAGRAM:10.215.247.255:9,broadcast
socat -u -T1 UDP-LISTEN:9,fork UDP-DATAGRAM:10.215.248.255:9,broadcast
socat -u -T1 UDP-LISTEN:10,fork UDP-DATAGRAM:10.215.111.255:9,broadcast

Before the wake-on-lan feature was added to Guacamole-Client I used to run a 
custom script which would in turn use a popular program called 'wakeonlan' from 
http://gsd.di.uminho.pt/jpo/software/wakeonlan/. This command has a -port 
parameter which allows to specify where to send the magic packet. So I run 
things like:

wakeonlan -p $port -i $broadcast $mac

where $port is any of 7,8,9,10 in my case.

Now, I'd like to use Guacamole's built-in support for WOL instead. However, 
according to https://guacamole.apache.org/doc/gug/configuring-guacamole.html 
there doesn't seem to be a way to specify this port. I guess it always uses the 
default port 9.

Would it be possible to add this feature?

Regards,

Vieri

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