Apple AirPort Networks Anleitung zur Fehlerbehebung PDF herunterladen (Seite 43)

Share Files with AirDrop

Have you ever wanted to swap a file between a couple of your own

computers without setting up file sharing and mounting a volume?

Or pass a file to a friend or colleague without joining a common Wi-Fi

network, setting up ad-hoc networking, or emailing it?

AirDrop is a solution to that common problem. Added in 10.7 Lion, the

feature lets you find and share files with other users near you. It has a

pile of provisos that I discuss below, but it’s a remarkably nifty way—

when the right hardware is available—to hand files back and forth.

Note: AirDrop for iOS works on the iPhone 5 and later, 4th-

generation iPad, iPad Air, iPad mini, and 5th-generation iPod touch

or later.

(It also requires an iCloud account to access your contacts.)

I’ve never made it work between two iOS 7 devices, and no

troubleshooting from Apple has helped. My editor, Tonya Engst,

reports success with using AirDrop between an iPhone 5S and 5.

What Makes AirDrop Tick

AirDrop for Mac relies on a special feature in new Wi-Fi adapters that

allows a network card to connect simultaneously to a Wi-Fi network

and to other devices on a peer-to-peer basis. A Wi-Fi network is

typically called an infrastructure network, as it provides a hub around

which all network activity zooms. In contrast, a peer-to-peer network

is known as a personal area network (PAN) network; it allows direct

communication among devices without a central coordinating switch.

This sounds a lot like Ad Hoc Networking, doesn’t it? With ad hoc

or computer-to-computer networking, a set of computers can all

connect to one

another as peers. However, ad hoc networking has

three drawbacks. First, it doesn’t include robust security, and even

the available security requires each party to type in an encryption

key. Second, you can’t maintain a connection to an Internet-connected

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Apple AirPort Networks Anleitung zur Fehlerbehebung Seite 43