A Closer Look at Snow Leopard's Wake on Demand Feature

[MacRumors]

http://www.macrumors.com/images/macrumorsthreadlogo.gif (http://www.macrumors.com/2009/08/28/a-closer-look-at-snow-leopards-wake-on-demand-feature/)

MacUser provides (http://www.macworld.com/article/142468/2009/08/wake_on_demand.html) an in depth look at one useful new feature in Mac OS X 10.6 Snow Leopard: Wake On Demand. [Wake On Demand] is Apple’s name for a new networking feature that lets a Snow Leopard Mac go to sleep while a networked base station continues to broadcast Bonjour messages about the services the sleeping computer offers. The base station essentially acts as a proxy for the slumbering Mac. Advertised Bonjour services includes file sharing, screen sharing, iTunes library sharing, and printer sharing among others.Prior to Snow Leopard, you would have to make your Mac never go to sleep if you wanted it to provide file or print sharing services at any time. This new feature will wake your Mac over Ethernet or even Wi-Fi networks.

There is a specific combination of hardware that is required to accomplish these tasks, however. Apple says you need an AirPort Extreme Base Station (2007 or more recent) or Time Capsule (2008 or more recent) with the latest firmware. MacUser found that in order to wake your Mac by Wi-Fi alone, you would need a 2009 Mac. To see if your Mac supports this 'Wake on Wireless' option, you can look at (http://images.macworld.com/images/news/graphics/142468-wakeonwireless2_original.jpg) your System Profiler.

Apple details (http://support.apple.com/kb/HT3774) how this could be used to offer full time support for iTunes Sharing, Printer Sharing, Back to My Mac, and more. Mac OS X 10.6 Snow Leopard was officially launched (http://www.macrumors.com/2009/08/28/mac-os-x-snow-leopard-officially-launched-today/) today.

Article Link: A Closer Look at Snow Leopard's Wake on Demand Feature (http://www.macrumors.com/2009/08/28/a-closer-look-at-snow-leopards-wake-on-demand-feature/)

[okrelayer]

Think this will work with simplify media at some point? That would be great!

[Consultant]

Cool stuff. Save on electricity!

[ab2650]

The wake on wireless looks intriguing... I've been using WoL with my Macs for some time now, but it has always been a "two-step" process, involving sending a WoL packet from somewhere on the (wired) network to the machine's MAC address. dd-wrt routers have a WoL broadcaster so it's easy enough to set up Macs that sleep but are still remotely accessible.

IMHO, the points of this feature are:
1) Simplicity; Turning a two-step process into just one.
2) Equivalency of wireless/wired networking, assuming you have all the right gear.

[melchior]

my early 2008 MBP supports wake on wireless...

[alexwaddell]

Well I've got a mid-2008 24" iMac and the Wake on Demand works over ethernet AND Airport - this contradicts the MacUser findings...ymmv!

[NewSc2]

Cool feature, but seriously, all those pre-reqs? I doubt my 2007 MBP qualifies.

[NeighbrhoodPush]

This would be the perfect solution when i stream to my 360. Was gonna hold off on Leopard for a few weeks but im gonna go buy it right now. I think i overlooked this feature cause this is the first ive read about it...

[Menge]

Wait a second: Macs never had Wake-On-LAN?

[xyz01]

I've got a 2007 imac connected via wireless - and wake on demand seems to work pretty well with it.

[wonderbread57]

I would say this is a cool feature. Especially for a leopard based car puter that can wirelessly sync files with a home computer on demand.

[ventro]

Is there a way to access this service? I run a local server to serve webpages to the computers around my house and I would like it to wake up when someone requests use of the server.

[Modano]

Enable it in Energy Saver to get it to work! I can confirm that it works with the original Unibody MBP. That is awesome.

[Modano]

Wait a second: Macs never had Wake-On-LAN?

They have for as long as I remember but Wake-On-LAN requires a wired connection. Wireless is what makes this unique.

[MacMan86]

Wait a second: Macs never had Wake-On-LAN?

They've had Wake-On-Lan for a while now - what's new is that it works for wirelessly connected Macs now as well - no longer have to have the mac connected to the router with an ethernet cable. First time I've heard of this technology

[sammich]

Wait a second: Macs never had Wake-On-LAN?

No, Mac's have had Wake-On-LAN for a while but not Wake-On-WLAN.

[bukweet]

This is awesome! For YEARS I've had to rely on POT to dial in to my Mac at home or work to wake it, since an Airport router does not pass the wake up "magic packet."

Now, not only will the Airport Extreme pass the wake up packet, but it will also wake a remote system that's on WiFi... how the he'll does it do THAT??

Anyway, for me, this is the BEST feature of Snow Leopard.

Thanks Apple. Nicely done.

[j-a-x]

So, it won't work with a new Airport Express?

[orangepickel]

My 2007 MacBook (white) says Wake on Wireless is supported...

[robogobo]

The secret for this to work is having power to the sleeping Mac's network card. So I don't think there's any hope to make it work with unsupported machines. The real question is why did it take so long to get this feature. WOL isn't exactly reliable, and with the different sleep modes (deep or safe sleep, etc) the possibilities vary widely with each machine. Thanks goes to network component manufacturers. Foxconn, I'm looking at you.

[bukweet]

No, Mac's have had Wake-On-LAN for a while but not Wake-On-WLAN.

Actually, it's called Wake-On-WAN, for Wide Area Network (e.g., the internet).

[NATO]

It works a treat... as soon as I try to access my iMac from my MacBook Pro, the iMac suddenly springs into life and it's as if it was on the whole time. I've set my iMac to go back to sleep again after 30 minutes inactivity so overall I should make quite a saving in electricity from now on :)

I have to say, I never heard of this Wake on Demand feature until a few days ago and it's been one of those nice little surprises with Snow Leopard

[Bevz]

Anyone know if this will work with appletv?

[Soat]

Confirming Wake on Wireless supported on Late 2008 unibody Macbook Pros.

Anybody run into seeing it "supported" but not actually work? I haven't tried it yet.

[munkees]

wake on demand, this looks interesting.

[Mal]

Actually, it's called Wake-On-WAN, for Wide Area Network (e.g., the internet).

Actually, I'd assume he meant Wake-On-Wireless LAN, since nowhere was it implied that this was from anywhere. This is over WiFi, also known as a WLAN.

Cool feature, btw. Don't know of any other computers that can do Wake-On-Wireless.

jW

[iphones4evry1]

There will come a day ... when the entire world will be wake-on-demand. Servers, internet hubs, ISPs, security cameras, street lights that turn off when motions sensors aren't activated, televisions that turn off during commercials and turn back on at the end of commercials, light bulbs that turn off immediately when you walk out of the room. There will come a day :apple:

[gnasher729]

My iMac 7,1 2.8 GHz C2D does not run in 64bit. Safari which is in 64bit now crashes

Process: Safari [533]
Path: /Applications/Safari.app/Contents/MacOS/Safari
Identifier: com.apple.Safari
Version: 4.0.3 (6531.9)
Build Info: WebBrowser-65310900~1
Code Type: X86-64 (Native)
Parent Process: launchd [134]

I have also noticed my bus speed is now 800 instead of 667, does that mean I can run 800 mem cards?

1. What does that have to do with this thread?
2. Have you looked at the dozens of threads that explain the difference between 64 bit operation and a 64 bit kernel?
3. Bus speed is not the same as memory speed.

[Xian Zhu Xuande]

So, it won't work with a new Airport Express?
That's what the article says. If people find a way around it, I'm sure it will be published to the appropriate sites. The Airport Express is great, but it isn't loaded with the more advanced networking features.

[Dmac77]

This is great! Also, my mid-2007 iMac supports Wake on Wireless.

Don

[parapup]

Now why do they not put that feature in the AppleTV?

The little bugger never sleeps well and boots slowly for a media server device.
Leaving it running is wasting 25W continuous.

[Pagemakers]

I have a brand new MBP 13“ and my system profiler looks completely different and I can't believe this machine will not wake over wireless...

[Bevz]

I have a brand new MBP 13“ and my system profiler looks completely different and I can't believe this machine will not wake over wireless...

Mine looks the same as yours; are they showing what it looks like when 10.6 is installed?

[Bevz]

Does anyone know if AppleTV can wake a mac with an iTunes library? If so i'd be seriously happy! :) I can't test myself 'cos i'm still waiting for my copy of SL to arrive :mad:

[Shuttleworth]

When it wakes, does the computer screen come on? I can't see a need for the screen if it's remote access, and would rather it didn't, as my iMac is in the bedroom :o

[nagromme]

Mine looks the same as yours; are they showing what it looks like when 10.6 is installed?

Must be. My system profiler is different too. Check again after we install Snow Leopard :)

[radiv78]

This is awsome...
My iMac at home was sleeping. I accessed it via VNC from my iPhone (Jaadu VNC) over 3G :)

[radiv78]

When it wakes, does the computer screen come on? I can't see a need for the screen if it's remote access, and would rather it didn't, as my iMac is in the bedroom :o

Yes it does :(

[Shuttleworth]

Yes it does :(
cheers! never mind:o

[pknz]

This is a really neat feature.

However I doubt I can implement it as my DSL provider is using PPPoA.

Wake on Demand would require the Airport Base Station to use PPPoE and host the connection.

[Bevz]

Must be. My system profiler is different too. Check again after we install Snow Leopard :)

Sounds like a plan :) just waiting for mr.posty to stop messing about and deliver my copy! ;)

[radiv78]

This is a really neat feature.

However I doubt I can implement it as my DSL provider is using PPPoA.

Wake on Demand would require the Airport Base Station to use PPPoE and host the connection.

I have a modem from my ISP (using PPOE), my airport extreme is in bridged mode. It is working perfectly.
I just had to open the correct ports in the modem.
I wanted to run VNC over SSH, so I just opened port 22 to connect to my mac.

[NATO]

This is a really neat feature.

However I doubt I can implement it as my DSL provider is using PPPoA.

Wake on Demand would require the Airport Base Station to use PPPoE and host the connection.

My ISP uses PPPoA as well but I got an ADSL modem (Linksys AM200) in half bridge mode which allows the Airport Extreme to work as intended. Wake on Demand works 100%

[randyharris]

I verified in the System Profiler that my 2008 iMac supported the wake feature, but sadly it does not work for me running off a LinkSys G54 router running Tomato firmware. I realized it said that you have to be running an Airport Extreme router but I had my hopes up nonetheless.

Well now I'll have to weight the option of a new dual band Airport against my trusty Linksys/Tomato setup. I would feel better letting my iMac go to sleep (while my AC cranks 24/7 here in the summer in AZ - haha)

[Saladinos]

My 2007 MacBook (white) says Wake on Wireless is supported...

Indeed. My Santa Rosa BlackBook (last BlackBook model) also supports it.

[Civic Minded]

Does anyone know if AppleTV can wake a mac with an iTunes library? If so i'd be seriously happy! :) I can't test myself 'cos i'm still waiting for my copy of SL to arrive :mad:

Indeed it does! However, your iTunes has to already be open in order for it to work. Small price to pay I suppose, but I tried it a couple times, and it woke the iMac up every time! Very cool. :D

It is sort of a bummer about the screen coming on though. Maybe they'll fix that in a later release.

[arh]

Does anyone know if AppleTV can wake a mac with an iTunes library? If so i'd be seriously happy! :) I can't test myself 'cos i'm still waiting for my copy of SL to arrive :mad:

It works perfectly. Just tested it with my Unibody Macbook with a wired connection to the Airport Extreme base station, and ATV connected wirelessly.

What's more, the Macbook only awakes when it needs to. My Macbook was sleeping, I powered up the ATV, selected Movies then My Movies and flicked through the library viewing the list of movies. It was only when I actually selected a movie to view was the Macbook awoken from its slumber.

Very impressed with this feature.

[Guy Incognito]

I just tested this feature with my unibody Macbook and Airport Express. It works perfectly. Note that Apple says that the feature requires an Airport device. The author of the MacUser article added "Extreme." Again, this feature works with the Airport Express as well.

[hitekalex]

I just tested this feature with my unibody Macbook and Airport Express. It works perfectly. Note that Apple says that the feature requires an Airport device. The author of the MacUser article added "Extreme." Again, this feature works with the Airport Express as well.

That's great news! What firmware version is your Airport Express (mine is 7.4.2)? Does this feature require Airport to act as a Access Point? In other words, if my Express is set up as a wireless client (I only use it for AirTunes), can I still use this feature?

[Bevz]

It works perfectly. Just tested it with my Unibody Macbook with a wired connection to the Airport Extreme base station, and ATV connected wirelessly.

What's more, the Macbook only awakes when it needs to. My Macbook was sleeping, I powered up the ATV, selected Movies then My Movies and flicked through the library viewing the list of movies. It was only when I actually selected a movie to view was the Macbook awoken from its slumber.

Very impressed with this feature.

Oh that is so cool! Thanks for posting! For me this is an awesome feature as I use my macpro effectively as a media server for my ATV and my MBP... fantastic! :)

[Guy Incognito]

That's great news! What firmware version is your Airport Express (mine is 7.4.2)? Does this feature require Airport to act as a Access Point? In other words, if my Express is set up as a wireless client (I only use it for AirTunes), can I still use this feature?

The firmware on my Airport Express is 7.4.2. I'm not sure about the answer to your other question, but I'm sure that if you try it out, others will be interested to know what you find.

[Matthew Yohe]

I have a brand new MBP 13“ and my system profiler looks completely different and I can't believe this machine will not wake over wireless...

Install Snow Leopard.

[Quillz]

So basically, this feature is completely useless if you don't have an all-Apple hardware setup, complete with nearly brand new Macs?

Just more proof that Apple doesn't care about their long-time customers anymore. I have an "ancient" November 2008 iMac, as well as Draft-N compliant router (not built my Apple.) So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?

[pdpfilms]

For the Airport Express users: is everyone using newer, 802.11n expresses? Or has anyone had success with the older 802.11g expresses?

Also, has anyone's system profiler told them their machine is incompatible but had success anyway? My Mac Pro says ethernet only, and I'm hoping it's lying.

[drakino]

So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?

Correct. Because getting this to work with a non Apple router isn't currently possible with how they implemented it. The router runs a Bonjour proxy service, caching every bonjour service it sees on the network. If it sees another device request a service from a sleeping machine, it sends the WoL packet out. Your draft N router lacks this Bonjour proxy, so yes, it won't work. Feel free to contact your router manufacturer though and ask them to add the Bonjour sleep proxy. It has been submitted as a standard by Apple, so any 3rd party can implement it.

[Quillz]

Correct. Because getting this to work with a non Apple router isn't possible with how they implemented it. The router runs a Bonjour proxy service, caching every bonjour service it sees on the network. If it sees another device request a service from a sleeping machine, it sends the WoL packet out. Your draft N router lacks this Bonjour proxy, so yes, it won't work.
I just find myself wondering if it's truly a technical limitation or just a way for Apple to increase sales of the AirPort Extreme Base Station.

[jzuena]

So basically, this feature is completely useless if you don't have an all-Apple hardware setup, complete with nearly brand new Macs?

Just more proof that Apple doesn't care about their long-time customers anymore. I have an "ancient" November 2008 iMac, as well as Draft-N compliant router (not built my Apple.) So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?

The feature has to be implemented in your router, so you need to make a feature request to your router vendor asking them to implement Bonjour and to keep broadcasting your Mac's services as a proxy when the Mac is asleep. That is not Apple's job to do.

I have been waiting on getting a dual band router and was leaning away from the AEBS due to cost, but this might be a feature to sway me back towards it. If you are going to charge more money you should offer more features, and this sounds exactly like what Apple has done.

[calderone]

I just find myself wondering if it's truly a technical limitation or just a way for Apple to increase sales of the AirPort Extreme Base Station.

Another conspiracy theorist. Tell you what, write Apple and ask them to hold every router manufacturers hand and help them add in their firmware the necessary parts to make this work. That sounds like a reasonable request to me...

Maybe you are trying too hard to think outside the RDF, that you make such obvious errors about a company's intentions.

[Matthew Yohe]

So basically, this feature is completely useless if you don't have an all-Apple hardware setup, complete with nearly brand new Macs?

Just more proof that Apple doesn't care about their long-time customers anymore. I have an "ancient" November 2008 iMac, as well as Draft-N compliant router (not built my Apple.) So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?

No. You can still wake your iMac from another computer that can spit out WoL magic packets. ( http://www.readpixel.com/wakeonlan/ ) You just cannot take advantage of the extra features that Apple has implemented on their routers. These require the sleep proxy.

I just find myself wondering if it's truly a technical limitation or just a way for Apple to increase sales of the AirPort Extreme Base Station.

Technical limitation on the part of your vender. When/If they implement the sleep proxy, then it will work. Otherwise, you can still send wake packets to a Mac that supports wake on wireless.


Again: Wake on wireless will work on almost any wireless router (if your Mac supports WoW), but the extra features Apple provides will not without the bonjour sleep proxy.

[Quillz]

Another conspiracy theorist. Tell you what, write Apple and ask them to hold every router manufacturers hand and help them add in their firmware the necessary parts to make this work. That sounds like a reasonable request to me...

Maybe you are trying too hard to think outside the RDF that you make such obvious errors about a company's intentions.
The reason I even bring it up is because lately Apple has made some very dumb decisions (such as only allowing a battery PERCENTAGE NUMBER on the iPhone 3G-S, only allowing voice dialing on the iPhone 3G-S, etc.) that were clearly sly ploys to encourage sales of their new devices.

Thus, it wouldn't have surprised me one bit if Apple built in a new feature to Snow Leopard that essentially required an Apple-only ecosystem to function. Maybe it's a conspiracy, but it's what they've done in the past.

[calderone]

The reason I even bring it up is because lately Apple has made some very dumb decisions (such as only allowing a battery PERCENTAGE NUMBER on the iPhone 3G-S, only allowing voice dialing on the iPhone 3G-S, etc.) that were clearly sly ploys to encourage sales of their new devices.

Thus, it wouldn't have surprised me one bit if Apple built in a new feature to Snow Leopard that essentially required an Apple-only ecosystem to function. Maybe it's a conspiracy, but it's what they've done in the past.

The two situations are completely different.

With the iPhone, the battery percentage thing is not worth mentioning. Voice dialing, sure they are locking 3G users out. But that is their choice of course, and they want to make money.

However, with this Wake on Demand feature, requiring an Apple router does not mean they are out to get money. It simply is not possible to do it without getting every router on board. They make the Airport and can thus build those features in.

I can see how you can cry foul on the iPhone, but not on this feature. If you want to propose a way for it to work without changing your N router, please do. It is clear that it is not possible without requiring Apple to do far more work than should be required.

If you don't want to use Apple routers, write your own solution.

[Matthew Yohe]

As a note, this appears to work with SSH.

Remote into your machine, sleep it (manually, or with pmset sleepnow). The SSH window remains open, and active. If you press a button or begin typing, it will wake the remote machine.

[arn]

ya, sorry the article wasn't clear. I tihnk people are confusing this with the simple Wake from Lan that has been around.

Sure you can wake your computer via LAN manually... but I believe this makes it so all the computers around know that your iTunes Library is a service available from your sleeping computer. And can awaken it just by trying to access it.

I think the best example is probably from Apple TV, but I haven't tried it so the details could be off:

From your Apple TV, if your Mac is running Leopard and is asleep, your music library will be inaccessible from Apple TV. In Snow Leopard with your Mac asleep, you will see it from the Apple TV still as an option and when you try to access it, the Airport router will waken your computer so it can serve those files.

arn

[BTW]

Very cool.

Now if my late 2007 Macbook would stop sleeping when in use and disconnected from the power cord. Maybe that a Stay-Awake feature that only SL has. :p

[macinsanity]

My 2007 MacBook (white) says Wake on Wireless is supported...

:mad: My late 2007 Santa Rosa Macbook Pro 2.4GHz does not show it to be supported.

[e-coli]

Apple has posted a Knowledge Base article. Any Bonjour-enabled computer is compatible according to Apple, simply requiring a few steps to set up.

http://support.apple.com/kb/HT3774?viewlocale=en_US

[edit] oops, it does appear to have some compatibility requirements.

[Miquel]

Apple could of course implement a similar feature to AppleTV if they wanted. AppleTV could cache the required information (and it probably already does) to wake up the computer it is synced with. I think the only feature it is basically is missing is to send that magic wake packet...

[macinsanity]

Apple has posted a Knowledge Base article. Any Bonjour-enabled computer is compatible according to Apple, simply requiring a few steps to set up.

http://support.apple.com/kb/HT3774?viewlocale=en_US

Not exactly. If you read closely the document is saying any bonjour enabled client can wake a Snow Leopard Mac which support Wake on Demand. Later in the article it tells you how to validate this.




To enable Wake on Demand on a Mac running Snow Leopard:

From the Apple menu, choose System Preferences.
From the View menu choose Energy Saver.
Select (check) "Wake for network access". Note: The "Wake for network access" option's text may differ depending on the capabilities of your Mac:
Wake for network access - Your Mac supports Wake on Demand over both Ethernet and AirPort
Wake for Ethernet network access - Your Mac supports Wake on Demand over Ethernet only
Wake for AirPort network access - Your Mac supports Wake on Demand over AirPort only


For my Late 2007 Santa Rosa Macbook Pro it says "Wake for Ethernet network access" so I'm left out of this party.

[Ruahrc]

Just a random thought. If the network card needs power all the time now, does this affect the "sleep" life of an Apple laptop that is running on battery power? I will admit that such a situation would not be terribly common but say you have enabled the wake on WLAN function and then take your laptop on a trip, if you wanted to maximize battery life would you have to disable it in order to prevent the internal airport card from listening for a wakeup packet that will never come (because it is not at home)?

My copy of SL (Up to Date ordered) will show up eventually, although I will probably wait on installing it for a while to ensure all of my existing software will play nice and to see if any issues are reported by others.

Ruahrc

[BWhaler]

This feature is awesome. Makes 30 bucks for Snow Leopard an absolute bargain.

[alexwaddell]

Anyone know if this will work with appletv?

Yes it does and it works really well - have had my iMac sleeping overnight and my AppleTV can still see all of the TV shows & Movies on it. When I choose one that is hosted on the iMac it starts playing.

Genius!

[yoppie]

For the Airport Express users: is everyone using newer, 802.11n expresses? Or has anyone had success with the older 802.11g expresses?

Also, has anyone's system profiler told them their machine is incompatible but had success anyway? My Mac Pro says ethernet only, and I'm hoping it's lying.

I have an old Airport Express and it doesn't work with that. The latest firmware for the 802.11g is 6.3 while those reporting success are stating that their firmware is 7.4.2 which was released for those with 802.11n capabilities.

Thankfully I also have one of the newer Airport Extreme that does work.

[Bevz]

Yes it does and it works really well - have had my iMac sleeping overnight and my AppleTV can still see all of the TV shows & Movies on it. When I choose one that is hosted on the iMac it starts playing.

Genius!

That's brilliant! This feature will be so useful to anyone with an AppleTV!

Even better that my copy of SL has just been delivered... I'm off to install and let the good times roll... ;)

[pknz]

My ISP uses PPPoA as well but I got an ADSL modem (Linksys AM200) in half bridge mode which allows the Airport Extreme to work as intended. Wake on Demand works 100%

Just my luck, my DSL modem (Huawei SmartAX MT882) only seems to have a full bridged mode, not a half-bridge.

[Jowl]

So does the feature allow you to wake only from sleep?

Or can I actually boot a (wired?) machine using the Wake on demand (Like I can with almost all modern PC's?)

[Becordial]

They've had Wake-On-Lan for a while now - what's new is that it works for wirelessly connected Macs now as well - no longer have to have the mac connected to the router with an ethernet cable. First time I've heard of this technology


/del

[Becordial]

So basically, this feature is completely useless if you don't have an all-Apple hardware setup, complete with nearly brand new Macs?

Just more proof that Apple doesn't care about their long-time customers anymore. I have an "ancient" November 2008 iMac, as well as Draft-N compliant router (not built my Apple.) So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?

I'm the same... I want to use whatever router I like. And I do. And I wake it wirelessly. Is easy with this app. http://www.doogul.com/software/wom/

[MBHockey]

This is great! Now I can leave my MacBook asleep all day and it wakes up perfectly from my iPhone via VNC :)

[Master Chief]

The "green company" forgot to add some notes about power usage. Not good.

Also, from Apple's document:

"To use Wake on Demand wirelessly with a WPA or WPA2 network, the AirPort base station or Time Capsule must be hosting the network."

Please note that WPA (with TKIP) has been cracked – 'hackers' do this in a few seconds – yet there's no word about (additional) security (features) in Apple's documents. In short; You should be using WPA2 with AES only, or not use this feature at all.

Ah, this part is very interesting:

"Macs that have Wake on Demand enabled will occasionally wake for a brief time, without lighting the screen, in order to maintain registrations with the Bonjour Sleep Proxy. On some Macs, sounds from the optical drive, hard drive, or fans may be heard during these brief maintenance wakes.".

And that will most definitely take some power. Not to mention the annoying sound, for people sleeping next to their Mac's ;)

[Ed91]

Ok, I'm curious:

What would happen if I put my MBP to sleep by shutting the lid, then tried waking it over LAN / WLAN? Does the whole OS start up, or just the sharing services? What about if the computer requires a password to wake from sleep?

Hmm.

[Menge]

Please note that WPA has been cracked – 'hackers' do this in a few seconds – yet there's no word about (additional) security (features) in Apple's documents. In short; You should be using WPA2 only, or not use this feature at all.
WPA has been cracked only with TKIP, not AES.

[Master Chief]

WPA has been cracked only with TKIP, not AES.
True. I've made that clear now. Thanks!

I was however just trying to address the absence of notes about these kind of security issues – as a reminder ;)

[Master Chief]

Ok, I'm curious:

What would happen if I put my MBP to sleep by shutting the lid, then tried waking it over LAN / WLAN? Does the whole OS start up, or just the sharing services? What about if the computer requires a password to wake from sleep?

Hmm.

Closing the lid won't work (apparently, but I haven't checked it myself):

"Additionally, portable Macs with Wake on Demand enabled will only wake on demand if they are plugged into power and either the built-in display is open or an external display is attached. "

And it will wake the whole OS:

"Any client that connects to one of these services (as in Bonjour-registered services) will cause the Snow Leopard Mac to wake."

And back to sleep:

"Once that request is complete, the Mac will go back to sleep at its regularly-scheduled interval as set in the Computer Sleep section of the Energy Saver preferences pane."

Seems like your sleep setting is rather important for this feature (in order to be green).

No word about passwords however!

Note: This still rather fresh document – currently a first draft – might be changed in the near future and explain some things a little more. Hopefully.

[shaunymac]

This to me is brilliant. I love it.

I haven't played with 10.6 yet. I'm sure by the time I get it, you guys will have the whole sleep issue fixed.

[shaunymac]

On second thought, now I wish I wouldn't have sold my airport now. I just got rid of it a week ago. :eek:

Maybe there will be a work-around.

[ebika]

So, would there be a way to make this work over WAN? I like to be able to connect to my Mac at home from work using the MobileMe BackToMyMac. I know if is just doing a global bonjour thing. I assume I can't wake my Mac over the WAN, but I'd be interested to hear anyone give explanations otherwise.

[andy721]

Im sorry am I the only one who thinks this is retarded and not poor here?
You could just leave your computer running all the time but turn your display off at around 10-15minutes.

[Guy Incognito]

So, would there be a way to make this work over WAN? I like to be able to connect to my Mac at home from work using the MobileMe BackToMyMac. I know if is just doing a global bonjour thing. I assume I can't wake my Mac over the WAN, but I'd be interested to hear anyone give explanations otherwise.

Why wouldn't it work? I haven't tested the scenario you describe, but I have been able to wake my Macbook via SSH from an iPhone connected to AT&T's 3G network. The airport simply routes the relevant packets, triggering the wake feature. I don't see why BackToMyMac would work any differently.

[Serge88]

There is nothing new with Wake on Demand.
I have a PC, an iMac and a MacBook Pro (WiFi) on a Airport Extreme. I use Wake on Lan to wake up my iMac and PC to access iTunes library and printer on my PC. And I put them to sleep after it's over.

Serge

[ebika]

Why wouldn't it work? I haven't tested the scenario you describe, but I have been able to wake my Macbook via SSH from an iPhone connected to AT&T's 3G network. The airport simply routes the relevant packets, triggering the wake feature. I don't see why BackToMyMac would work any differently.

When you did that via SSH, you had port forwarding set up? BackToMyMac's global bonjour is registered by macs communicating their connectedness to the mobileme servers, which is nice so that I don't need port forwarding. I suppose the airport router could be caching that as well... I'll just have to try.

Im sorry am I the only one who thinks this is retarded and not poor here?
You could just leave your computer running all the time but turn your display off at around 10-15minutes.

I agree, that's why I always smash my dishes after meals. :rolleyes:

[Takuta-Nui]

Weird, I have an Airport, not the Extreme kind. Yet the iMac supports this capability.

Cool, though. =D

[t0mat0]

Kind of reminds me of http://www.emberafter.com/geartalk/?p=28
XMOS
The future of audio over ethernet. I could see Apple making moves to work on wired and wireless communication between Macs, iPhones/Touchs and an updated ATV (will they scrap the old one and make the Mac mini do this?)

James Foster: Smei conductor company. New reprogrammable chip. Ethernet AVB - Audio over CAT5 cable. Working with Apple about standards.
USB2 audio can be done on the same hardware.
In stores within next 3-6 months. (THis was posted back in January 2009). Was this the iFPGA? Probably mistaking the things, but seems ATV needs to get into the living room, and now Apple has the increase in Macs, and iPhones/Touches, with users having HDTVs, there's a way to bridge the digital A/V divides.

[Guy Incognito]

When you did that via SSH, you had port forwarding set up?

Yes.

BackToMyMac's global bonjour is registered by macs communicating their connectedness to the mobileme servers, which is nice so that I don't need port forwarding. I suppose the airport router could be caching that as well... I'll just have to try.

I'll give BackToMyMac a try this afternoon when I'm at my office.

[ebika]

I'll give BackToMyMac a try this afternoon when I'm at my office.

The MobileMe preferences pane has an answer to my question too...

http://imgur.com/eF7Pz.png

That's pretty cool. Also, I RTFM'd this page: http://support.apple.com/kb/HT3774 . It actually describes Back to My Mac waking.

[jshbckr]

I'm a little disappointed when looking at my Mac Pro's system profiler.

Apparently, this April 2007 8-core Mac Pro doesn't support Wake On Wireless, which is something I've been waiting for.

Of course my MacBook Pro and my girlfriend's MacBook both support it--the two computers that are always on the move and don't even need it!

Any way to change this? Swap out Airport cards between my MacBook Pro and Mac Pro?

[Revelation78]

There is nothing new with Wake on Demand.
I have a PC, an iMac and a MacBook Pro (WiFi) on a Airport Extreme. I use Wake on Lan to wake up my iMac and PC to access iTunes library and printer on my PC. And I put them to sleep after it's over.

Serge



As it's been stated before 6 times in the this thread, over a wired connection is nothing new. This brings the ability to wake a Mac over a WIRELESS connection which is new - outside of third-party apps.

[z4n3]

Works on MBP 2.5Ghz (4.1) :D

[TAPelicious.com]

wake on wlan works too on my early 2008 mbp!! :)
very cool feature!

[jaw04005]

Doesn't work on my Santa Rosa MacBook (Early 2007) or iMac Core Duo (Early 2006), boo.

[mr_matalino]

I have a brand new MBP 13“ and my system profiler looks completely different and I can't believe this machine will not wake over wireless...

My wife's 13" MBP DOES support this. Are you running Snow Leopard?

[Guy Incognito]

The MobileMe preferences pane has an answer to my question too...

http://imgur.com/eF7Pz.png

That's pretty cool. Also, I RTFM'd this page: http://support.apple.com/kb/HT3774 . It actually describes Back to My Mac waking.

I just tried this from my office iMac; it seems to work fine. I was able to connect via both file-sharing and screen-sharing methods.

[D.R.]

So, what about Time Machine? I can imagine this being in some way useful for Time Machine to access shared volumes on a network.

[bplein]

So, what about Time Machine? I can imagine this being in some way useful for Time Machine to access shared volumes on a network.

Yes, run "Wake for Ethernet network access" on a Mac that has a shared drive (AFP) on your network, and it will wake when the other hosts back up to it. That's what I am doing with my Mac Mini. The reality is that throughout the evening it will never sleep (one of our laptops will be backing up at any time) but an hour after everyone in the house is asleep and our laptops are off, the mini will sleep too.

[Bevz]

After getting my copy of Snow Leopard delivered this morning this was one of the first features i wanted to try... After a few reboots of all of my devices (MacPro, AppleTV and AEBS) i got this working... Fantastic feature! I can now set my MacPro to sleep whenever it's not in use and my AppleTV and FrontRow on my MacBook Pro wake it up automatically when i try and access iTunes content on it... Works seamlessly so far... Brilliant! Snow Leopard is worth every penny for this feature alone :)

[BoulderBum]

I peed myself a little when I heard this worked with Apple TV (I've been hoping they'd make the feature, but never suspected they'd actually do it), and I was wondering if anyone has tested if the wake feature works when using the iPhone's "Remote" application to stream music to an Airport Express.

Does "Remote" wake a Mac to stream music to an Airport Express?

[Guy Incognito]

Does "Remote" wake a Mac to stream music to an Airport Express?

Yes.

[cubedweller]

I have a wired connection, have enabled it in Energy Preferences, have Screen Sharing setup on my MBP and I can't get it to awake for the life of me? I have my Airport Extreme Base Station forwarding port 5900 to my MBP, so it should work locally as well as from an outside connection (and it does flawlessly when the machine isn't sleeping) but I can't get "Wake On Demand" to work at all -- any ideas?

[pbrooks]

I just find myself wondering if it's truly a technical limitation or just a way for Apple to increase sales of the AirPort Extreme Base Station.

I wonder the same thing. My Mac Pro does not support wake-on-wireless. I'm curious to know WHY. What particular piece of hardware is missing? It's not really a big deal. I just reconfigured my network by hooking the Mac Pro to the Airport Extreme base station via ethernet. Now I can use wake on demand when file sharing with MBP (which DOES support wake-on-wireless.)

[Mind The Mac]

No doubt this is a great feature for SL, however if we are to believe the rumors of upcoming media tablets/ipads etc, then you can see how this will interact to enable remote access to your library and maybe even allow streaming to your new 10" inch portable media screen!!!

This would allow it to run a smaller SSD, with online access to your library using BackToMyMac and Wake on Demand.

This may also explain why Apple got SL out ahead of schedule ready for the 9th!!.

[MacFly123]

So would this make it so I can stream movies that are in my iTunes library but not synced to my Apple TV as they are stored on my Time Capsule while my MacBook Pro is asleep? Will I have to have iTunes open? :confused:

It would be even nicer if my Apple TV could do that even when my MacBook Pro is not on!

[SleepyHead157]

this is a pretty good feature. I just got it to work. I wasn't even aware of this until a few hours ago. The $30 for Snow Leopard, seems to be worth it.

[applelover13]

apple store down!

sorry had to get somebodys attention

it is a very cool feature

[mcdj]

Am I correct in assuming this won't work with a 13" MBP running SL and a late model AEBS to wake up a G5 Quad running Leopard? Do both machines have to be running SL?

[Bevz]

So would this make it so I can stream movies that are in my iTunes library but not synced to my Apple TV as they are stored on my Time Capsule while my MacBook Pro is asleep? Will I have to have iTunes open? :confused:

It would be even nicer if my Apple TV could do that even when my MacBook Pro is not on!

Sadly not :( AppleTV needs iTunes running... It can't just access files on a network drive. This is madness though as frontrow can! putting the feature in would be such a small change to the software but would make a massive difference to so many users, I really don't understand why apple hasn't done it... :(

[zacheryjensen]

Sadly not :( AppleTV needs iTunes running... It can't just access files on a network drive. This is madness though as frontrow can! putting the feature in would be such a small change to the software but would make a massive difference to so many users, I really don't understand why apple hasn't done it... :(

Same frustration here.

Also frustrated that the connection between an ATV and iTunes is so flimsy. This wake on ethernet feature actually being useful after it existing for 40 years is great! But after a while the ATV, while it wakes the mac, doesn't ever connect to iTunes until I exit and start iTunes again. THis problem existed before already, it just took a lot longer to notice because I didn't sleep my mac very often.

I hope Apple gets more complaints about this stability problem and issues a fix now that it's more meaningful.

[Bevz]

Same frustration here.

Also frustrated that the connection between an ATV and iTunes is so flimsy. This wake on ethernet feature actually being useful after it existing for 40 years is great! But after a while the ATV, while it wakes the mac, doesn't ever connect to iTunes until I exit and start iTunes again. THis problem existed before already, it just took a lot longer to notice because I didn't sleep my mac very often.

I hope Apple gets more complaints about this stability problem and issues a fix now that it's more meaningful.

yes your right, iTunes sometimes looses the appletv for no reason and it's a lot worse if you sleep the computer a lot (which were now starting to do..) I feel a entry in the bug reporting coming on... ;) not that they've ever paid any attention to my reports! Actually that isn't true, to be fair the bug where the mail app doesn't open minimised on the dock is now fixed in snow leopard... Yippee... Only about 2 years after I reported it to them lol ;) anyway, fingers crossed... Hopefully they'll start to take appletv seriuosly soon and make some major upgrades... It's a great bit of kit that just needs a little attention to make it truly superb IMHO

[kristoffer4]

Yes.

Happy dance! :cool::D

[cubedweller]

I'm kind of upset that this feature will only work within local networks. I called Apple and they said the only way to get this functionality from an external network would be to purchase MobileMe and use "Back to my Mac." Really defeats the purpose of this feature for me as I would have loved to have been able to awaken my machine while on the road -- oh well :/

[BoulderBum]

Yes.

Happy dance! :cool::D

Happy wiggles from me, too! My Mac Mini will now be my near-perfect idea of a media server! Host all my content on its hard drives, sleep it 90% of the time to save electricity, but have it ready to wake whenever I need the content!

This is HUGE!

I can't wait to get my copy of Snow Leopard now. Arg! They shipped a day later than I thought they would (on Saturday).

[John.B]

So basically, this feature is completely useless if you don't have an all-Apple hardware setup, complete with nearly brand new Macs?

Just more proof that Apple doesn't care about their long-time customers anymore. I have an "ancient" November 2008 iMac, as well as Draft-N compliant router (not built my Apple.) So I won't be able to take advantage of the useful wake on demand feature, simply because I wasn't that impressed with the AirPort Extreme Base Station?
Oh, quityerbitchin'.

It's your "Draft-N compliant router (not built by Apple)" manufacturer that "doesn't care about their long-time customers anymore".

From my perspective, it looks like maybe you should've been more impressed with the AEBS than you apparently were?

For the record, I'm currently running two WRT54GLs and based on this (and certain support issues with UPnP), I'm picking up either an AEBS or a 1 GB Time Capsule this week . Linksys is owned by Cisco, who have the big router reputation, but once again its Apple that blazes the trail.

I agree with the previous poster, maybe looking through the world with anti-RDF glasses has clouded your vision. Apple published this as a open standard, so even your "Draft-N compliant router (not built by Apple)" manufacturer can implement this -- if they so choose.

Sheesh, some people's kids...

[John.B]

Im sorry am I the only one who thinks this is retarded and not poor here?
You could just leave your computer running all the time but turn your display off at around 10-15minutes.
My computers use more power when on vs. asleep -- even with the display asleep. I'd bet that yours do to. :shrug:

[smeagol]

Sweeet!!! Sounds like I will be able to access the many files at home on my (future) Mac Pro with my (future) Macbook Air. Life is good :D

[twoodcc]

now this is nice! i need to hurry and install snow leopard on 2 more machines

[ebika]

I'm kind of upset that this feature will only work within local networks. I called Apple and they said the only way to get this functionality from an external network would be to purchase MobileMe and use "Back to my Mac." Really defeats the purpose of this feature for me as I would have loved to have been able to awaken my machine while on the road -- oh well :/

So, why not buy MobileMe and be able to awaken your machine while on the road?

[UberD]

Does anyone no if the new support will allow you to put a home server to sleep if it contains a mac pro raid card? My early 2008 is a huge electricity vacuum 'cause it never sleeps. Couldn't fine and tech specs that it would or wouldn't work.

[syadasti]

Actually, I'd assume he meant Wake-On-Wireless LAN, since nowhere was it implied that this was from anywhere. This is over WiFi, also known as a WLAN.

Cool feature, btw. Don't know of any other computers that can do Wake-On-Wireless.

jW

Windows, Linux, etc do. As usual its old technology (from 2006!!! 3945 WiFi chipset or newer if you are talking Intel WiFi chipsets) that works even with older OS and hardware if Apple cared about their users instead of profits:

http://www.intel.com/network/connectivity/resources/doc_library/tech_brief/wowlan_tech_brief.pdf

WoWLAN in XP (http://www.intel.com/support/wireless/wlan/sb/CS-029827.htm)

Once again Apple is way behind implementing features hardware has had for a while like switching notebook GPUs on the fly properly:mad:

Think different, think again:p

[Tex-Twil]

Hello,
is the Wake On Demand available only for Bonjour advertised services ? Or for any network service that is running on OSX ?

I would like to wake my MBP with a NATed SSH connection from the internet.

[Bjohnson33]

They have for as long as I remember but Wake-On-LAN requires a wired connection. Wireless is what makes this unique.

Such a small thing, but a very nice thing!

[scottness]

I peed myself a little when I heard this worked with Apple TV (I've been hoping they'd make the feature, but never suspected they'd actually do it), and I was wondering if anyone has tested if the wake feature works when using the iPhone's "Remote" application to stream music to an Airport Express.

Does "Remote" wake a Mac to stream music to an Airport Express?

It'll do it in Leopard if your Mac supports it.

[kabturek]

Oh, quityerbitchin'.
Apple published this as a open standard, so even your "Draft-N compliant router (not built by Apple)" manufacturer can implement this -- if they so choose.

Sheesh, some people's kids...

Hi,
I'm interested in this "open standard" you (and other people on this thread) are talking about. Could you or anyone else provide some links to the "Sleep proxy" specification ? I'm a programmer and would gladly implement it on wrt54gl routers (openwrt/tomato). Also links to Apple claims that indeed it's "open" would be appreciate too.

greets,

[MacFly123]

Sadly not :( AppleTV needs iTunes running... It can't just access files on a network drive. This is madness though as frontrow can! putting the feature in would be such a small change to the software but would make a massive difference to so many users, I really don't understand why apple hasn't done it... :(

Same frustration here.

Also frustrated that the connection between an ATV and iTunes is so flimsy. This wake on ethernet feature actually being useful after it existing for 40 years is great! But after a while the ATV, while it wakes the mac, doesn't ever connect to iTunes until I exit and start iTunes again. THis problem existed before already, it just took a lot longer to notice because I didn't sleep my mac very often.

I hope Apple gets more complaints about this stability problem and issues a fix now that it's more meaningful.

yes your right, iTunes sometimes looses the appletv for no reason and it's a lot worse if you sleep the computer a lot (which were now starting to do..) I feel a entry in the bug reporting coming on... ;) not that they've ever paid any attention to my reports! Actually that isn't true, to be fair the bug where the mail app doesn't open minimised on the dock is now fixed in snow leopard... Yippee... Only about 2 years after I reported it to them lol ;) anyway, fingers crossed... Hopefully they'll start to take appletv seriuosly soon and make some major upgrades... It's a great bit of kit that just needs a little attention to make it truly superb IMHO

AMEN! I'm glad I have some people that can sympathize with me! I love my Apple TV, but it could still be so much better.

I think when the Tablet comes out we could see an Apple TV update and the two will be HIGHLY connected and complete the link between computer and entertainment center once and for all! All I have to say Apple is, IMAGINE THE APPLE TV WITH THE APP STORE!!! :eek:

[Tex-Twil]

Hello,
is the Wake On Demand available only for Bonjour advertised services ? Or for any network service that is running on OSX ?

I would like to wake my MBP with a NATed SSH connection from the internet.
I've just tried and it works :) This means I can easily wake my mac with my iPhone ... cool :)

[mrnagrom]

Must be. My system profiler is different too. Check again after we install Snow Leopard :)

so is your name morgan too?

[BuddyTronic]

Cool stuff. Save on electricity!


+1

cool!

[BD1]

I've just tried and it works :) This means I can easily wake my mac with my iPhone ... cool :)

Can you wake up using your iPhone when you are on 3G and not your local network? If yes, what app are you (or anyone) using to do this?

[cw2k7]

Can you wake up using your iPhone when you are on 3G and not your local network? If yes, what app are you (or anyone) using to do this?

I have tried it with TouchTerm via 3G (wifi disabled) and it wakes my mac when I tell it to connect.

[Tex-Twil]

I see a big inconvenient to this feature.

Any connection from the internet which is routed to a open port on the mac will wake it up.

I have ssh running on port 22 so any "scan" on this port will wake the MBP.

Is there a way to wake the mac only with a ethernet packet from the LAN instead of a IP packet ?

[swindmill]

I see a big inconvenient to this feature.

Any connection from the internet which is routed to a open port on the mac will wake it up.

I have ssh running on port 22 so any "scan" on this port will wake the MBP.

Is there a way to wake the mac only with a ethernet packet from the LAN instead of a IP packet ?

This does seem to be a problem. I put my Mac to sleep at night and it wakes up at some point every night before I get up.

[nsainfreek]

I have a server that shares files. I don't need all files all the time so my server has a very short sleep interval. On my main mac I just use wakeonlan to wake the server and then mount the drive to access the files. Does anyone know if wakeonDEMAND will allow me to leave the drive mounted, put the server to sleep, and automatically wake it when I try to access the volume?

[chrisdee]

Come on, It's 2009. And first now they implement a feature like this ???

[John.B]

Come on, It's 2009. And first now they implement a feature like this ???
They've had Wake-On-LAN forever. This just allows you to do the same thing over Wifi.

[celtikmind]

Whee, so now we have to be wary of 'drive-by power on's as well as someone stealing data wirelessly? Power on, download, turn off - all done over the air while you're sleeping. :D

I feel so much safer already... not. :p

[LaFong]

I have an early '07 MacBook, which will not do Wireless Wake on Demand. It will do Wake on LAN on the Ethernet port. I set up a WDS network using an Extreme as a 'main' WDS router and an Express as a 'remote' WDS, and connected the Express to the Mac's Ethernet wired port. Wake on Demand now works. Extreme >>wireless>> Express >>wire>> Mac. I port forward SSH over an alternate port on the Extreme, with Bonjour global advertising. Using the alternate port makes wakeups from external port scanning much less likely. I can VNC over an SSH tunnel, or merely use SSH to wake up the Mac, then use LogMeIn. LogMeIn, not unexpectedly, performs a bit better than VNC.

[dkklee]

I have a modem from my ISP (using PPOE), my airport extreme is in bridged mode. It is working perfectly.
I just had to open the correct ports in the modem.
I wanted to run VNC over SSH, so I just opened port 22 to connect to my mac.

Hi, I just saw this message which touches on something that has confused me.
I run a Time Capsule connected to my iMac (OS 10.6.1). I have switched
on "Wake for Network Access" and mapped TCP port 22 for SSH access.

Now, I can wake the iMac from Sleep mode from a remote computer using an SSH client on the remote computer. Good start! But now I am concerned that this is too easy. At no point did I have to provide the remote computer with the MAC address of my iMac. So, it looks like anyone can wake up the iMac....and there are continuous attacks at the SSH port by password hackers....

It looks like my Time Capsule is waking up my iMac by sending the magic WakeonLAN packet. I would prefer that it required a MAC address for packets requesting access from outside my LAN. Is this a missing security feature? Or am I misinterpreting how things should be set up for Wake over WAN?

[bplein]

dkklee-

I understand your question, but that's simply not how Wake on Demand works.

http://en.wikipedia.org/wiki/Sleep_Proxy_Service

The mdns responder looks for packets (ARPs) that are destined for the sleeping system, and sends a Magic Packet to wake that system up. There is no security or key that is required.

So if your host is always being hammered with SSH scans, it will likeley rarely sleep. You may consider moving SSH to another port in order to reduce the number of packets hitting it constantly.

[dkklee]

dkklee-

I understand your question, but that's simply not how Wake on Demand works.

http://en.wikipedia.org/wiki/Sleep_Proxy_Service

The mdns responder looks for packets (ARPs) that are destined for the sleeping system, and sends a Magic Packet to wake that system up. There is no security or key that is required.

So if your host is always being hammered with SSH scans, it will likeley rarely sleep. You may consider moving SSH to another port in order to reduce the number of packets hitting it constantly.

Hi thanks for the explanation and the link.

[JaQbyte]

hi,
long time reader, first post

setup: MBP early 2008, iPhone 3gs, Router with DD-WRT v23 sp2 (I also have an old airport express b/g)

I just found this incredible app called remotetap.
What I want to do is wake up my MBP from my iphone over 3g to use remotetap.

apple tells us for wakeup on demand we need a newer airport (or TC). So I did not try it in my wifi at home. Today my MBP was asleep. I tried to connect via remotetap over wifi. did not work because remotetap is only able to use WOL (ethernet). I then accidentally pressed the "remote" app from apple.

!!! it woke my MBP up !!!

I just checked, it works every time! So no need for an Airport station? Can someone confirm?

conclusion: it should (with port forwarding) be possible to use this feature to wake up my MBP over 3g form my iphone?!

thanks

UPDATE: Wake on Lan (WOL) works over wifi with non apple router! Now I am able to remotely wake up my MAC from my iphone and screenshare, etc.

[Denarius]

No, Mac's have had Wake-On-LAN for a while but not Wake-On-WLAN.

LAN = Local Area Network
WAN = Wide Area Network
WLAN = Wireless Local Area Network

Does anybody know what the name of the Sleep proxy service daemon is?

[Denarius]

Hi,
I'm interested in this "open standard" you (and other people on this thread) are talking about. Could you or anyone else provide some links to the "Sleep proxy" specification ? I'm a programmer and would gladly implement it on wrt54gl routers (openwrt/tomato). Also links to Apple claims that indeed it's "open" would be appreciate too.

greets,

Yes so am I. I've seen several references to the proxy service being open source, but I'm thinking it should be possible for a Mac to act as it's own Sleep proxy service with a well-chosen iptables addition to the router.

[paddyhazard]

Yes it does :(
What about if you are waking a sleeping MBP? (with the lid closed) Will it not work and will you need to sleep it with the screen open?

[MurphyM]

The "green company" ...Ah, this part is very interesting:

"Macs that have Wake on Demand enabled will occasionally wake for a brief time, without lighting the screen, in order to maintain registrations with the Bonjour Sleep Proxy. On some Macs, sounds from the optical drive, hard drive, or fans may be heard during these brief maintenance wakes.".

And that will most definitely take some power. Not to mention the annoying sound, for people sleeping next to their Mac's ;)

I've been playing with this hint (http://hints.macworld.com/article.php?story=20100401103451497) from MacOSXHints that uses Sleepwatcher to return the Snow Leopard Wake-On-Lan functionality to the way it was pre-SL. Not done playing with it yet, but for those who prefer NOT having the "maintenance wakeups" it's worth a read.



Im sorry am I the only one who thinks this is retarded and not poor here?
You could just leave your computer running all the time but turn your display off at around 10-15minutes.

You could. But power costs a lot more in some places outside the USA than it does in FL. And some people just don't like to waste power. In a general sort of way.

[KA9Q]

I see I'm not the only one who objects to this new feature. I'm getting constant unwanted wakeups.

SSH port scans are just one cause of spurious wakeups. I've been capturing the network traffic into my Mac, and sometimes it wakes for no apparent reason at all.

Prior to Snow Leopard, I could remotely turn on my Mac by logging into a low power Linux system with SSH and running a command-line program (ether-wake) that generated the magic packet. (The magic packet is not an IP packet, so it won't pass through routers; it has to be originated on the same Ethernet segment). The only option Snow Leopard has is to turn off Wake On Network, and that disables Wake On LAN entirely. There's no way to restore the functionality I had prior to Snow Leopard!

I can see how command-line programs might not satisfy some Mac users, so the sleep proxy subsystem really needs a set of Preferences to let the user specify which events (i.e., which network services) will or will not wake the machine. The user should also have the option of disabling all wakeups in response to normal network requests while retaining the ability to wake up the system with an explicit, authenticated remote request through the sleep proxy device (e.g., the Airport base station).

Packet tracing shows that as the Mac prepares to enter sleep mode, it sends a series of DNS Update messages to the sleep proxy listing the services that it supports. When the Mac is asleep, the proxy answers ARPs for the sleeping host, and it answers service discovery requests for the sleeping Mac. In this way, the proxy intercepts IP packets intended for the Mac, issues the Magic Packet to the Mac to wake it up, and then forwards the service requests, allowing the Mac to reclaim its IP address with ARP. So one way to tell whether a Mac is sleeping with the proxy service activated is to ARP for its IP address with a command like "arpping"; during sleep, the proxy will answer those ARPs with its own Ethernet MAC address.

[knowell]

Hi,
I'm interested in this "open standard" you (and other people on this thread) are talking about. Could you or anyone else provide some links to the "Sleep proxy" specification ? I'm a programmer and would gladly implement it on wrt54gl routers (openwrt/tomato). Also links to Apple claims that indeed it's "open" would be appreciate too.

greets,



here you go there is a discussion going about this.

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=67154&sid=393e7b759ac5c04bd5a384ea2b9d0cd0

[John.B]

I see I'm not the only one who objects to this new feature. I'm getting constant unwanted wakeups.
If you have specific implementation requests that would improve the way this works (and it sure sounds good to me), I'm sure someone on the OSX 10.7 team would be interested in hearing about it:

http://www.apple.com/feedback/macosx.html

[AndyC]

Does anyone know, if you still need to have an apple router to get the wake on demand to work (through Ethernet, not wireless)

I have an iMac which has the box ticked for wake on network and an new appleTV.

But the iTunes library on the appletv disappears when the iMac goes to sleep

both appletv and iMac are wired to a netgear switch and get ip via dhcp from a 2Wire router (BT Business Hub)

thanks

[PBF]

So does that mean that when it's asleep, messages will still arrive to Mail app and make "new messages" sound?

[themoffster]

sorry to bump this old thread, but does this mean that if i have an iMac sleeping, i can still stream the music and videos that are in its library to my Apple TV or to wireless speakers via airplay?
(I've not bought an iMac yet so i can't check myself)

[Modano]

sorry to bump this old thread, but does this mean that if i have an iMac sleeping, i can still stream the music and videos that are in its library to my Apple TV or to wireless speakers via airplay?
(I've not bought an iMac yet so i can't check myself)

Yes, your new iMac will wake up when your AppleTV wants to play something on it.