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wireles network hacks mods - briere D.

briere D. wireles network hacks mods - Wiley publishing, 2005. - 387 p.
ISBN: 0-7645-9583-0
Download (direct link): wirelesnetworkhacks.pdf
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^ Wireless network cameras: Network cameras enable you to pan, tilt, scan, zoom, and record video from around your home. Not just still action shots, but true color video where and when you want it. D-Link (www. dlink.com) offers almost 20 different versions of wireless Internet cameras, including outdoor models for checking the perimeter of your property! Chapter 14 scans your options for network cameras.
^ VoIP phones:Wireless-enabled VoIP (Voice over Internet Protocol) phones allow you to call anywhere in the world. In the near future, VoIP phones will swarm into your
home, providing home office lines, teen lines, and even your main phone line. All the major brand-name telephone manufacturers are getting into the act, as are all the major department stores and office supply chains. We talk about VoIP phones in Chapter 15.
^ MP3 players: Network-enabled MP3 servers will serve up your favorite album anywhere within your wireless footprint, enabling you the same portability at home that you used to only get with a portable radio. In Chapter 13, we lay out your options for media servers in your home.
These devices are just a start. Expect most of the consumer goods in your home to log on to your home network sometime soon. Network-enabling such devices allows them to be monitored for breakdowns, software upgrades, and so forth, just like your virus checker on your computer stays current on new definition files. So don't be surprised if you get a message from your microwave informing you that it needs a new LCD display. (Does this mean we have to give our dishwashers an allowance?)
PCI cards and Mini PCI cards: Desktop computers typically use internal PCI cards — these are the standard PC internal cards also used for extra video cards, memory controllers, wired network adapters (like Ethernet adapters), and the like. A smaller variant of PCI, appropriately named Mini PCI, is often used for small form factor computers and laptops. You usually don’t put Mini PCI cards in yourself: They are typically factory-installed.
Compact Flash adapters: Some handheld computers (like PocketPCs) use a variant of flash memory known as Compact Flash (or CF). Some wireless adapter vendors have reduced the size of their wireless network adapters to fit in these tiny little slots. Figure 3-5 shows a CF network adapter.
Chapter 3: Wireless LAN Infrastructure
Figure 3-5:
A Compact Flash wireless network interface card.
Just because your handheld has a CF card slot doesn’t mean you can jam a CF Wi-Fi adapter in there and expect it to work. You need to ensure that your specific handheld can support Wi-Fi at all, and then ensure that there are drivers (or device-specific software) that work for the CF Wi-Fi card you’ve chosen.
CF is the most common type of memory slot in handhelds, but there are a number of other types (like SD, SDIO, Memory Stick, and so on — we get dizzy just trying to keep up with the profusion of memory card standards). Vendors have (or soon will) come out with Wi-Fi cards for just about every form factor.
USB adapters: Just about every computer these days has a profusion of Universal Serial Bus (or USB) ports on the front, back, side, and anywhere else they fit. (USB ports are really handy because they’re . . . well, universal and almost every computer peripheral uses them.) So wireless network adapter vendors have cleverly created Wi-Fi and Bluetooth adapters in keychain form factors (like the little portable thumb- or pen-sized flash memory sticks many people carry these days). Some have even kept the flash memory in the same device, so you can carry your files and your network connection on your keychain! The device pictured in Figure 3-2 is a USB adapter.
For higher speed networks (like 802.11a or g), you need a high-speed USB 2.0 adapter plugged into a suitable high-speed USB 2.0 port on your computer. That’s because USB 1.x speeds top out at 12 Mbps.
^ Sleds and docks: For some devices, wireless adapters of the forms listed above just aren’t in the cards (pun definitely intended!). For example, the latest version of the super hot Palm OS Treo handheld/smartphone, the 650, doesn’t (at the time of this writing) support any Wi-Fi cards in its SD memory slot. Manufacturers know a hot market when they see it and have developed proprietary sled devices. A sled is nothing more than a portable dock for a handheld device (or phone) that contains a network adapter and (usually) an extra battery. You slide the handheld into the sled and you’re set for Wi-Fi access. The real big disadvantage is just that Handheld + Sled = Real Big and Heavy.
48
Part I: Making Your World Wireless
Proprietary internal cards: Sometimes equipment vendors just want to make your life a little bit more difficult — or they want to make it easier, but more expensive — so they don’t use a standard PC, PCI, Mini PCI, or what have you card for their wireless adapters. Instead, they create a custom form factor themselves. A prime example here (may Steve Jobs strike us down if we’re lying) is Apple computer. The Apple AirPort and AirPort Extreme cards are the company’s 802.11b and 802.11g network adapters (respectively), which are basically kinda like PCI cards, but then again, they’re not. Neither fish nor fowl (nor pork nor beef!), these cards are proprietary: You buy them only from the vendor and they fit only in the vendor’s products. Luckily, everything else about them is standardized, and they communicate with wireless network infrastructures from any vendor.
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