- Does WOL (wake on lan) work for hibernation?
- Posted by ishtarbgl on January 1st, 2004
Has anyone attempted to do a wake on lan to a pc that is hibernated?
I would assume this would work but I just don't know.
- Posted by daytripper on January 1st, 2004
On 1 Jan 2004 10:10:36 -0800, ishtarbgl@yahoo.com (ishtarbgl) wrote:
fwiw, it doesn't work on any of the systems I have that otherwise can be waken
from the Standby state via WOL, keyboard or mouse.
These same systems won't be waken by keyboard or mouse from Hibernate, either,
so my assumption is the prevailing implementation is not to support WOL from
Hibernate...
/daytripper
- Posted by Yousuf Khan on January 1st, 2004
"daytripper" <day_trippr@REMOVEyahoo.com> wrote in message
news:n2r8vvcv7ou9qenh4fte8fitecf8oh2ge2@4ax.com...
How exactly does the WOL function work anyways? What is the special signal
that is sent that wakes a computer from standby?
Yousuf Khan
- Posted by daytripper on January 1st, 2004
On Fri, 02 Jan 2004 00:11:51 GMT, "Yousuf Khan"
<removethisspam.bjsk90.removethispam@hotmail.com > wrote:
WOL utilizes a "magic packet" sent across a network by a management station to
the nic within the snoozing system. If the nic spots such a packet it triggers
the host system to return to the fully-powered state and proceed through POST
and boot. Finally, during the boot process the OS tests a "magic cookie" to
determine if the system is returning from the Stand By state (as opposed to a
Hibernate or a fully-powered down state).
Hardware implementation depends on the platform and the nic, but pre-PCI PME#
implementations depend on a three-wire cable connected from nic to a dedicated
WOL/WOR (Wake On modem Ring) header on the motherboard. NICs and host systems
that support PME# can communicate through a that dedicated bus signal and thus
require no special cable.
Beyond that, it means that enough of the nic (and the host "turn-on" logic)
has to be powered by the system's "stand-by" power rails to be able to
recognize a "magic packet" aimed at that specific nic even while the bulk of
the system power has been removed...
/daytripper
- Posted by Yousuf Khan on January 2nd, 2004
"daytripper" <day_trippr@REMOVEyahoo.com> wrote in message
news:gvd9vvckcbdl9ua6q73m954kfa9nk107h7@4ax.com...
Well, if I wanted to be taught about magic packets and stuff, then I
wouldn't have even asked in this newsgroup, I'd have just asked in
alt.folklore.urban. :-)
Anyways, I think I found the information in here:
http://gsd.di.uminho.pt/jpo/software...o-2.html#ss2.1
Yousuf Khan
- Posted by daytripper on January 2nd, 2004
On Fri, 02 Jan 2004 07:24:55 GMT, "Yousuf Khan"
<removethisspam.bjsk90.removethispam@hotmail.com > wrote:
<yawn> I'll be sure to note that the next time you ask such an open-ended
question on a networking group, like this beauty:
Yeah, that's a well-bounded query alright :-p
And the information provided therein differs from what I already provided you
- how?
/daytripper (who now wonders what the point was...)
- Posted by Yousuf Khan on January 2nd, 2004
"daytripper" <day_trippr@REMOVEyahoo.com> wrote in message
news:1bdbvvsbof2olq3ru3d0c3o7t8a0q6nhv0@4ax.com...
It tells you what is contained within the magic packet.
Yousuf Khan
- Posted by daytripper on January 2nd, 2004
On Fri, 02 Jan 2004 19:40:15 GMT, "Yousuf Khan"
<removethisspam.bjsk90.removethispam@hotmail.com > wrote:
Of course, it should have been obvious that's what you were looking for ;-)
/daytripper
- Posted by Yousuf Khan on January 3rd, 2004
"daytripper" <day_trippr@REMOVEyahoo.com> wrote in message
news:hfkbvv4n7pb1f2fmstaj6dhjq61dho41i2@4ax.com...
Actually, now I gotta wonder, I gotta a typical WiFi router with Ethernet
connections too. I wonder if WOL can be used between the WiFi and Ethernet
parts of the network? I tried sending a WOL signal from my wireless laptop
to my wired desktop. Didn't wake it up.
Actually maybe another related question. Would a motherboard Ethernet
automatically be capable of WOL, I mean without requiring a special cable?
Yousuf Khan
- Posted by daytripper on January 4th, 2004
On Sat, 03 Jan 2004 21:27:05 GMT, "Yousuf Khan"
<removethisspam.bjsk90.removethispam@hotmail.com > wrote:
at the risk of competing with alt.folklore.urban...
can you wake the desktop up from a wired system?
I have a laptop using a netgear 802.11a nic, and the companion netgear WAP is
plugged into a lan port on my linksys router. I just tried your experiment and
can WOL my wired systems just fine from the wireless laptop. I use a freebie
applet (MC-WOL.exe) to generate the magic packet and aim it at the wired nic's
MAC address, and it works just like it does when I run the same applet from
one of my wired nodes.
It'd be a rare current or even recent generation desktop motherboard that had
an embedded network adapter but didn't *support* WOL. That's not "automatic"
but close to it.
You get WOL nearly for free if you design the motherboard to support the rest
of Microsoft's definitions for standby operation. The additional WOL circuitry
is trivial (basically, it's a nic chip output wired to an otherwise unused SIO
GPIO input, and then connecting certain nic chip power pins to the standby
voltage rail instead of the "normal" voltage source) and the rest is simply
rom bios code...
It's probably not enabled by default, either. You would likely have to enable
WOL via the system cmos setup utility, and set the appropriate nic driver
switch(es)...
/daytripper
- Posted by Yousuf Khan on January 4th, 2004
"daytripper" <day_trippr@REMOVEyahoo.com> wrote in message
news:m3tevvolnkanj9806ovo4nt9lnifhu56qo@4ax.com...
I'll have to try that next.
Yeah, that's the utility that I was using too.
Okay, I'll assume a "yes" on that one then. :-)
Yousuf Khan
