Created attachment 395 [details]
source of a gpl program called wakelan that does magic packet wol

how i'd imagine this would work:
- pressing power, sleep, or play when server is not present would send magic packet
- or it could be to press and hold sleep or something...
- could also put something on the display like 'Attempting to wake SlimServer...'

*** This bug has been marked as a duplicate of 331 ***

not really a dupe, one is a feature request for squeezebox1 (bug 331) this one
is a feature request for squeezebox2.

I've been reading that WOL doesn't really over wireless, so wont this be
pointless for a large number of users expecting this to eventually work?

for eg, I have tried sending WOL to a PC behind the SB2 bridging, and can't get
it to work.  research on that seemed to suggest I was dreaming to ever expect it
to work without hacks to most routers/bridges

i don't understand why that would be an issue...  are you saying that wireless
routers dump the wol packet?

now a machine behind a bridge, i could see that as possibly being an issue, but
what if it's just wired or wireless directly to your router?

how did you send the packet?  using wakelan?

yeah wow if the computer is connected wirelessly, wol is just no go.

but i don't think that invalidates this as a feature.  that'd just be one caveat.

the videbox plugin sends a WOL packet using the following:

sub wakeUp {
	$socket->send( WakeOnLAN( $wol_mac ), 0, $destaddr ) if $wol_mac =~ /[1-9]/;
}
# Assemble a Wake On LAN packet

sub WakeOnLAN {
	my $mac = shift;

	my $macbin = join( '', map { chr( hex( $_ ) ) } split( /[^0-9a-f]+/i, $mac ) );
	return ( chr(0xFF) x 6 ) . ( $macbin x 24 );
}


I mentioned it because I spent a HUGE amount of time digging for info (until
about 5am actually) and found it very difficult to get a straight answer.  There
were hints that it was possible, but nothing that proved any idea had worked.  I
don't see any reason not to support for wired, but it is going to have to be
made clear that wireless isn't happening (if indeed it isn't reliably possible).
 I'm losing patience with some attitudes lately, so I figure I am probably not
the only one.  Avoiding the potential for creating yet another cause for the
parade of (enthusiasm killing) ranting is worth the caveat  :)

WOL over WLAN working with this setup:

Slimserver running on an old Advance 9 PIII motherboard with a RealTek RTL8139 
NIC that is on my LAN (note: not WLAN), i.e. connected to one of the 10/100 
MBit/s ports on my:

Wireless router: Linksys WRT55AG running firmware 1.30 (the most recent one, 
from April I believe). 

The PCs from which I can wake the Slimserver PC are:
1) A home assembled P4 system with a Linksys WMP55AG WLAN NIC
2) An IBM T41 with the build in WLAN NIC (I believe it is an Intel PRO/Wireless 
LAN 2100)
3) A Compaq Armada M700 with a 3Com XJack NIC (3CRPAG175)

Just to add to what "password" said.
I can wake my homePC by sending WOL magic packets Wirelessly from my T42
Thinkpad using a Netgear 802.11G card.

My Wirleess router is a Belkin. I have it set to port forward any UDP packets on
port 9 to xxx.xxx.xxx.255. i.e. Do a broadcast on the subnet.
The destination NIC is connected by CAT5 to the Wireless router. it also
obviously needs to remain powered while the PC is in standby, otherwise the
packets go nowhere.

I can document my setup precisely and test firmware if required as I'd really
like to see this feature implemented.

The main issue as I see it, is that the SB needs to know the correct MAC address
to construct & send the Magic packets to. But once you have the SB sucessfully
connected to the Slimserver during setup, you can probably extract the MAC from
one of the packets and store it Automagically. Even entering the MAC address
manually would not be a major issue for a Rev 1 release.

from what i gather, WOL should work fine from wireless devices, just not TO
wireless devices.  so if the computer is wireless, i don't think  you can wake
it up using a magic packet.  but if it's wired, that will be fine.

wireless cards just don't have the same powered-on-but-powered-off capability
that ethernet boards do i guess...

Comment #11 is correct. To save power in laptops, the Wireless radio will
normally be completely shutdown.

I'm not sure about desktop Wireless NIC's. It may be possible to leave power
going to the card when the PC is in standby, but the NIC needs to be in PCI slot
2 on a PCI2.2 motherboard for WOL anyway. 

I've looked through the docs for a Netgear Desktop wireless NIC and could find
no mention of standby power settings.

Will be in tomorrow's nightly build in version 16.  Sends WOL packet if you choose to connect to a 
server via the top-level Squeezebox2 Setup menu, if you press RIGHT while trying to connect or press 
POWER when trying to connect.
Only tries to wake servers on your local subnet which are not squeezenetwork.  :) 

Sweet! Works perfectly for me.

I woke to stuttering music, not yet sure if it is the result of the new fw or not.

I believe that's due to a scanning issue.  Reopen if you confirm it's related to the firmware.

Wow, that is so slick.

GREAT!!!!!!!!!!!!!!!!!!!!!!!! It works like a charm - fantastic!!

This bug has been fixed in the 7.3.0 release version of SqueezeCenter!

Please download the new version from http://www.slimdevices.com/su_downloads.html if you haven't already.  

If you are still experiencing this problem, feel free to reopen the bug with your new comments and we'll have another look.