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Wake on LAN (The Magic Packet): msg#00104

hardware.voyetra.audiotron

Subject: Wake on LAN (The Magic Packet)

Hi Seth
After having waited for the MT (and I have to admit being a bit
disappointed), I just bought two more Audiotrons for the house (having my
first since 2001).

My setup is a regular W2K based PC in the basement.
It is constantly on and goes into hibernation after 30 min of inactivity to
save power.
I can trigger it to wake up by sending a 'Magic Packet' via my Laptop or the
IPAQ I use to control the setup.

It would be of course way cooler, if the Auditron could send the 'Magic
Packet' instead.
As you know, we have discussed this issue in this group before and I just
have the hope, with the MT project dead or delayed that you might be able to
sneak this in now.

The magic packet used by the IBM/Intel standard to wake computers is just
sending the MAC address of the LAN adapter 16 times
Sample code for the implementation in C# can be found here:
http://www.codeproject.com/csharp/cswol.asp
To my best knowledge there are no royalties or anything else due on using
this commercially.
Almost all motherboards support this functionality today.
I have a freeware utility for my IPAQ which works great, as such it works
also under Windows CE/PocketPC.

It could be implemented in the following way:

Option 1)
Without any user interface.
- Cache MAC addresses of servers contacted before
- On no reply from host send magic packet

Option 2)
With simple user interface
Same as option one, but allow user to switch on and off this functionality
in setup

Option 3)
Allow users to enter MAC addresses of servers manually in the setup
On no reply from host send magic packet

I personally prefer option 1) as sending the packet is very quick and will
under hardly any circumstances be detrimental. This solution would only
require the server to be up once after an Audiotron reboot to catch the MAC
address during a scan for caching. MAC address hardly ever changes and we
all reset our Audiotrons often enough to not make this an issue :-).
This would mean that no changes in user interface would be required.

Seth if you want to know more about this setup, feel free to also contact me
off list.

Would be great if this would work.

Anybody else who knows a reliable workaround for this is off course also
welcome to help.

Johannes

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