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

MacUser provides 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 your System Profiler.

Apple details 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 today.

Update: Readers are finding the requirements are less strict than thought. There has been success with older Macs for the Wireless Wake feature and the use of an Airport Express.

Update 2: To clear up some confusion surrounding the Wake on Demand feature, readers should note that computers running earlier Mac OS X versions and connected via Ethernet can be awakened remotely using such third-party utilities as WakeOnLan, but Snow Leopard builds that functionality into the operating system and extends that ability to computers connected via Wi-Fi.

While the simple "Wake on Wireless" functionality appears to be available with any wireless router for compatible machines running Snow Leopard and can be triggered using utilities such as WakeOnLan, the Bonjour Sleep Proxy feature needed for the advanced functionalities of broadcasting information about the sleeping machine requires the use of an Apple AirPort or Time Capsule base station running firmware 7.4.2 or later.

Related Roundups: iMac, Mac Pro, MacBook Air

Popular Stories

iPhone 16 Camera Lozenge 2 Perspective Gray

Five Key Upgrades Coming to iPhone 16

Friday March 15, 2024 1:45 pm PDT by
The iPhone is Apple's top-selling product, and it gets an update every year. In 2024, we're expecting the iPhone 16 and iPhone 16 Pro lineup, with an arguably more interesting feature set than we got with the iPhone 15 and iPhone 15 Pro. Subscribe to the MacRumors YouTube channel for more videos. Capture Button All four iPhone 16 models are set to get a whole new button, which will be...
When To Expect New iPads Feature 1

Apple to Announce New iPads on March 26, Rumors Claim

Monday March 18, 2024 4:02 am PDT by
Apple is widely expected to release new iPad Air and OLED iPad Pro models in the next few weeks. According to new rumors coming out of Asia, the company will announce its new iPads on Tuesday, March 26. Chinese leaker Instant Digital on Weibo this morning 日发布%23">claimed that the date will see some sort of announcement from Apple related to new iPads, but stopped short of calling it an...
airpods 3 orange

Two New AirPods 4 Models Expected to Launch in September or October

Sunday March 17, 2024 7:56 am PDT by
Apple suppliers will begin production of two new fourth-generation AirPods models in May, according to Bloomberg's Mark Gurman. Based on this production timeframe, he expects the headphones to be released in September or October. Gurman expects both fourth-generation AirPods models to feature a new design with better fit, improved sound quality, and an updated charging case with a USB-C...
iphone se 4 modified flag edges

iPhone SE 4 Expected to Depreciate Heavily

Tuesday March 12, 2024 9:04 am PDT by
Resale value trends suggest the iPhone SE 4 may not hold its value as well as Apple's flagship models, according to SellCell. According to the report, Apple's iPhone SE models have historically depreciated much more rapidly than the company's more premium offerings. The third-generation iPhone SE, which launched in March 2022, experienced a significant drop in resale value, losing 42.6%...
General iOS 17 Feature Orange Purple

iOS 17.4.1 Update for iPhone is Imminent

Monday March 18, 2024 5:27 am PDT by
iOS 17.4.1 and iPadOS 17.4.1 should be released within the next few days, with a build number of 21E235, according to a source with a proven track record. MacRumors previously reported that Apple was internally testing iOS 17.4.1. As a minor update for the iPhone, it will likely address software bugs and/or security vulnerabilities. It is unclear if the update will include any other changes. ...
M3 iPad Feature 3

New iPads Likely to Begin Shipping in April

Monday March 18, 2024 9:52 am PDT by
Apple's new iPad Pro models with OLED displays will likely begin shipping to customers in April, according to information shared today by Ross Young, CEO of display industry research firm Display Supply Chain Consultants. Bloomberg's Mark Gurman also said the new iPad Pro models might not ship until "deeper" into April in his Power On newsletter on Sunday:I've repeatedly said that new...
iOS 17 Passkey With Apple ACCOUNT Feature

'Apple ID' Expected to Change to 'Apple Account' Starting With iOS 18

Sunday March 17, 2024 7:13 am PDT by
MacRumors was first to report that Apple was planning to rebrand "Apple ID" to "Apple Account" across its software platforms and websites like iCloud.com as early as this year, and now Bloomberg's Mark Gurman has corroborated this change. A mockup of the new Apple Account branding In his Power On newsletter today, Gurman said the new "Apple Account" branding will start to be used later this...