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

Mal said:
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
Click to expand...

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

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
 
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.
 
BoulderBum said:
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?
Click to expand...

It'll do it in Leopard if your Mac supports it.
 
John.B said:
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...
Click to expand...

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,
 
Bevz said:
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... :(
Click to expand...

zacheryjensen said:
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.
Click to expand...

Bevz said:
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
Click to expand...

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 said:
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.
Click to expand...
I've just tried and it works :) This means I can easily wake my mac with my iPhone ... cool :)
 
Tex-Twil said:
I've just tried and it works :) This means I can easily wake my mac with my iPhone ... cool :)
Click to expand...

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?
 
BD1 said:
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?
Click to expand...

I have tried it with TouchTerm via 3G (wifi disabled) and it wakes my mac when I tell it to connect.
 
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 ?
 
Tex-Twil said:
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 ?
Click to expand...

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.
 
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?
 
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
 
Use WDS

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.
 
Wake over WAN: Security?

radiv78 said:
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.
Click to expand...

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?
 
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.
 
bplein said:
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.
Click to expand...

Hi thanks for the explanation and the link.
 
wake on lan without airport

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.
 
kabturek said:
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,
Click to expand...

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.
 
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