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Base
4 camp
go Fwy




5
Ventura Fwy


6


7


FIGURE 11-7: An example of a map used for
Treasure Hunt.
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Chapter 11 ” Playing Access Point Games


A B C D E F G
To D4
To G1
1
To B7

2


3 To C1

FINISH
START
Base
4 Go to A2
camp


5
To G3

6
To E6

7


FIGURE 11-8: Diagram of SSID linking.


To begin with, each team is given the rough grid coordinates and a specific map in order to
determine the location of the first access point and using the clues located in the SSID™s of the
access points, each team must then locate each additional access point until the course is com-
pleted.


Variations for treasure hunting
A treasure hunt can be so many things. The SSID pointer is probably the most basic: pointing
you to the next link in the chain. But with some imagination, you can develop a truly unique
game.
Some ideas to consider are: Have the SSID provide a clue, instead of a directional pointer. For
example, “boardwalk canals and musclemen” could mean Venice Beach. Or, make the SSID a
phone number (that is, “TH0504-555-1212”) with an answering machine message, “Get to the
payphone by the stadium and find the access point to the East.”
Another fun, though even more painstaking alternative, is to make each access point forward
the user to a Web site holding the next clue. A team member would need to associate with the
access point, obtain a dynamically assigned TCP/IP address, and surf to a Web site unique to
that access point. Once at the Web site, any type of clue or challenge could be presented.
Imagine a treasure hunt where participants had to solve a riddle, puzzle, or pass a quiz before
being given the next clue.
With these few variations, the Treasure Hunt AP game can be a potentially challenging event
for participants and game coordinators!
280 Part III ” Playing with Access Points


Other AP Games
This section discusses two more fun ways to employ access point location sensitivity and
content delivery: Capture the Flag and the difficult to name, real-world virtual tour.


Capture the Flag
Capture the Flag is a merging of the AP-Hunt game into a sort of treasure hunt. Two teams
are created (and of course there™s a game coordinator). Each team has the object of finding all
of the other team™s access points and returning to base. The winner is the first team to return to
base with the locations of all of the enemy “flags.”
Capture the Flag takes little planning. Each team™s access point (also known as a flag) should
be assigned an SSID and the AP owners need to log the GPS location with the game
coordinator before starting. An example SSID scheme could be:
CTF0604-blueteam-roxors-3
CTF0604-redteam-rulez-C
The SSID is broken down as follows: Game-name (CTF), date ( June 2004), team, a motivat-
ing comment, and the access point identification. For the blue team, “3” represents flag three of
five. For the red team, “C” represents flag three of five.
In setting up the game, draw a line across the game play area to separate the two teams.
Access points should be on each side of the line like they would be in any good CTF map.
Figure 11-9 shows a CTF map with red team and blue team access points strewn about the
battle field.
Capture the Flag can be played with as few as two people (without a referee) or as many as
feasible. One can envision a parking lot full of wardrivers ready to be unleashed into each
other™s enemy territory trolling for specially named access points. Time is your only ally. It™s up
to you to devise some defensive tactics.


Virtual Touring in the Real World
The virtual tour is difficult to name accurately, but a simple concept: location-aware digital
content is delivered to visitors to a space in the real world. This can be done with special equip-
ment as is being done by experimenters in the Netherlands. Or you can set up a virtual tour
yourself with a few access points and a Web site.
Employ the Web site to give guided tours of the local area. Foot traffic with a wireless PDA or
laptop will discover a locally installed access point, obtain an IP address, and load a Web page
with content about the local surroundings. The visitors can surf to the Web site manually, or use
a captive portal system (like that shown in Chapter 10) to direct users to visit the appropriate
Web page.
Figure 11-10 shows a diagram of a virtual tour. Access points are placed in strategic locations
to deliver content about the surroundings.
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Chapter 11 ” Playing Access Point Games


A B C D E F G
AP A
1

AP 3
2

AP B
3

Base
Camp
4


AP 1
5

AP 2
6

AP C
7


RED TEAM BLUE TEAM
FIGURE 11-9: Capture the Flag map with a centrally
located headquarter.


This can be done for parkland tours, historic neighborhood facts, walk-throughs of museum
grounds, and any other form of locally-based content. Virtually any self-guided tour could be
delivered over a wireless network access point. And location-aware content brings the tourist
on-site in the real world and the digital world in a single moment.


About the
Waterfall

About the
Shrubbery



About the
Rock
Formation

Visitors Walk Along the Path to
Discover Access Points
with Pictures, Sounds,
and Notes

FIGURE 11-10: A virtual tour guides visitors along a real path.
282 Part III ” Playing with Access Points


Finding an Edge in Competition
When you™re getting started in AP gaming, just about any software will do the job. But what
do you do when winning becomes your determined goal? Here we will discuss some of the
finer points of software choice and how it relates to AP games.
The software choices available are often defined by the operating system used on your com-
puter. When choosing the software and operating system for your platform, you want to choose
an OS that fits within your current support network of technically savvy friends and associates.
Being a lone-adopter can be trying when you™re attempting to install a new network driver at
2:00 in the morning.
The two popular choices for access point detection are the same as for war driving: Linux run-
ning Kismet, and Windows running NetStumbler.
There are advantages to Linux in its low cost to implement and huge amount of free, open-
source software available. Windows also boasts a long history of easy-to-use software that™s
easy to obtain and install.
Linux users can run the Kismet Wireless scanner, the gold standard of free war driving soft-
ware. Kismet is quite powerful, but setting it up is not trivial. It requires obtaining, compiling,
installing, and configuring several packages with little direct support. This is where your per-
sonal technical support network comes in handy.
Windows users can download and install NetStumbler. NetStumbler requires little effort to get
working as compared to Kismet. Some users are able to download, install, and run
NetStumbler in a few clicks. NetStumbler is the easy-entry war driving software. Although
Kismet is more powerful, most wardrivers still choose to run NetStumbler. See Chapter 6 for
more on NetStumbler.

Although Windows/NetStumbler users can use a GPS and mapping software in conjunction with
NetStumbler, it is important to note that NetStumbler only pinpoints your GPS coordinates dur-
ing scanning. Linux users may find themselves at an advantage, in this case, by using Kismet and
GPSDrive/Gpsd, which allows a user to pinpoint the actual location of an access point in real-
time based on multiple Signal-to-Noise Ratio readings along with GPS coordinates. The result of
this on-the-fly logging is superior accuracy and speed when pinpointing access points.

NetStumbler is designed to identify access points within a given range. It detects them by
transmitting and receiving beacon signals, which are then in turn used to synchronize commu-
nication along the network.
NetStumbler users can use a program called StumbVerter, available atwww.sonar-
security.com, which converts NetStumbler log files to create plotted maps based upon their
coordinates. Unfortunately, it requires Microsoft™s MapPoint, a fairly expensive mapping tool
(see Chapter 7 for more on MapPoint and NetStumbler).
Kismet is not only able to detect access points through Signal-to-Noise Ratio graphs, but is
also able to sniff packets. You can use GPS mapping plug-ins to automatically triangulate the
actual GPS coordinates of an access point. You may also view Signal-to-Noise Ratio graphs in
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Chapter 11 ” Playing Access Point Games


real time. A “hot/cold” system is able to automatically track optimum signal and the approxi-
mate location of the access point. Additional plug-in software is available to switch between
location mapping and access point locating tasks.
Kismet has been designed with the intentions of seamless interaction with the GPSDrive soft-
ware, thus creating powerful maps in real time, on-the-fly, from the data recorded during the
session. Access points are plotted in their approximate location for easy identification, through
the use of either custom or pre-made maps downloaded off the Internet.

In order to fully utilize the capabilities of Kismet, you should have the latest version of the soft-
ware installed on your PC. The latest version can be found at www.kismetwireless.net/.




Summary
This chapter has introduced you to several ways of using wireless access points, as more than
just a way to get on the Internet. Playing Fox Hunt, Treasure Hunt, Capture the Flag, and cre-
ating Virtual Tours are pushing access point functionality to its limits in a way never intended
by the manufacturer. Using an access point in the manner described here is on the cutting edge
and can only become more interesting.
Access point gaming is continually increasing in popularity and, with wireless technology
becoming more and more widespread, you can count on access point gaming being a vital part
of recreation using wireless equipment.
Read on to Chapter 12 and discover how to add a wireless Internet connection to your TiVo
digital video recorder. Download program updates without a telephone line. Subscribe to the
TiVo Home Media Option and stream music to your entertainment center over the TiVo.
Create a slideshow and transfer movies from one TiVo DVR to another in a different part of
the house, all using your in-home wireless network and TiVo.
part
Just for Fun


in this part
Chapter 12
Wi-Fi Your TiVo

Chapter 13
Create a Long-Distance
Wi-Fi Link

Chapter 14
Deploy a Car-to-Car Wireless
Video Link

Chapter 15
Making a Dynamic Wireless
Digital Picture Frame
chapter
Wi-Fi Your TiVo
T
iVo is a marvel of modern technology. At first glance, it is little
more than an automatic VCR. But with all of the automation and
additional broadband multimedia features now available, it could
easily become the cornerstone of your home entertainment center.
TiVo is a product in the ever-increasing market of digital video recorders
(DVRs), but TiVo is different from most other DVRs”very different.
Primarily, this DVR excels above others in the unique TiVo service plan.
For a modest fee, the TiVo box becomes a gateway to entertainment
in this chapter
unlike anything you™ve seen. The service plan manages and controls
TiVo recordings. There are so many ways to record shows, including
Determining what
by actor, keyword, title, team, or by searching the entire program guide.
And, like other DVR machines, TiVo brings you the ability to pause kind of TiVo you
and rewind live TV. have
You can make your experience that much better by adding a wireless client
Finding the right
adapter and break your TiVo from the wires that bind it.
USB adapter
By eliminating the slow telephone line and using a broadband network
connection with the Home Media Option, you can stream MP3 music,
Upgrading the TiVo
create a digital photo slideshow, and schedule recordings over the Web.
software
Also, you pave the way to more in-depth TiVo explorations with a high-
speed wireless link to your TiVo.
Configuring your
Adding digital photo viewing is a feature a long time coming to home
TiVo for wireless
entertainment. Other products just coming to market have been designed
to show digital pictures on TV screens. Now TiVo adds that capability for
Sharing digital
a fraction of the cost of those other systems. You no longer have to imagine
the impact a digital photo makes when presented on a 40-inch screen. media on your TiVo
Make a slideshow for your next party!
In this chapter, you will learn how to get your TiVo on a wireless
network. And you will also be introduced to some aspects of the Home
Media Option which requires a high-speed connection. With a wireless
connection, you open up high-speed network access to your TiVo. In
addition, but not covered explicitly in this book, you can delve further
into the hackability of TiVo. A wireless connection will make many
TiVo hacks more accessible.
Here™s what you will need:
1. Broadband-capable TiVo
2. Wireless client adapter
288 Part IV ” Just for Fun


3. Wireless access point
4. PC computer on your home network (optional)
5. TiVo Home Media Option (optional)


TiVo Models
The TiVo digital video recorder comes in many models. These can be grouped as Series 1,
Series 2, and Integrated Series 1 or 2. The different series and models vary greatly in form and
function. And there can be some limitations on what the manufacturer supports with
Integrated TiVo. So it™s important to determine if your TiVo can support broadband.
If using an Integrated TiVo, the easiest way to determine broadband support is to contact your
TiVo manufacturer or TiVo service provider. For example, due to the specialized software used on
the integrated platform; a DirecTV system with a built-in TiVo DVR may not support broad-
band. It will depend on their plans. Let them know that TiVo users want broadband support.

While adding features, the functional limitations are usually greater when using any integrated
product. If you want the most functionality and “hackability” from TiVo, make sure to get a
stand-alone unit.


The following sections cover the differences between the two major platforms, Series 1 and
Series 2. Figure 12-1 shows the Series 1 and Series 2 stand-alone TiVo DVRs.




FIGURE 12-1: TiVo Series 1 (top) and TiVo Series 2 digital video recorders.
289
Chapter 12 ” Wi-Fi Your TiVo


Table 12-1 TiVo Series 1 Models
Manufacturer Models

Hughes GXCEBOT
Philips HDR112, HDR212, HDR312, HDR412, HDR612, DSR6000(R, R01)
Sony SVR-2000, SVR-3000, SAT-T60
TiVo PTV100, PTV300



Series 1: Wi-Fi for Early Adopters
The original Series 1 TiVo was noticeably lacking in one area: high-speed connectivity.
Hardware hackers soon developed various methods to escape this limitation. Online retailers
now have a variety of upgrade components available for Series 1 TiVo. Table 12-1 shows the
Series 1 models. Series 1 TiVo are no longer being manufactured.
Installing a broadband adapter (wireless or Ethernet) in a Series 1 TiVo can be significant, and
goes beyond the scope of this book. However, if you do have a Series 1, we™ll cover some of the
basics to point you in the right direction.

Series 1 TiVo upgrades require breaking the case and removing or installing hardware compo-
nents. Opening the case may void the manufacturer™s warranty.



Companies like 9th Tee Enterprises, www.9thtee.com, have made the process easier than it
used to be for Series 1 owners. 9th Tee provides two distinct products made for Series 1 TiVo.
9th Tee provides detailed instructions for each adapter:

TiVo TurboNet”Ethernet adapter
TiVo AirNet”wireless PC-card adapter

TiVo software version 3.0 or higher directly supports the TiVo TurboNet Ethernet adapter with-
out the additional software hacking needed to enable basic network connectivity. This method is
more direct, but does not provide extra network features like Telnet and FTP service for the TiVo.

High voltage is present inside TiVo DVRs. Even when unplugged, a TiVo unit can produce a haz-
ardous electric shock. Before opening the case of the TiVo, remove all power (pull the plug) and
do not touch any power supply components.



This step relies on a standard Ethernet-to-wireless bridge. The Linksys WET11 or the
D-Link DWL-810 are good examples of this easy-to-find product. The bridge simply
connects an Ethernet jack to a wireless access point as just another wireless client. It effectively
places any wired device onto a wireless network.
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