Transcript Wireless Setup[1][1][1]

Wireless Networks
(WLAN)
BY: Priscilla Solis
Ibrahima Diallo
Dania Ibrahim
Alma Garrido
Erik Torres
What is wireless networking?
 Technically, wireless networking refers to any
data exchange between PCs and other devices
which doesn’t involve cables.
 Connecting to a wireless hotspot in a cafe,
sending data from your PC to a handheld
computer using an infrared link, or synching data
between your mobile phone and notebook via
Bluetooth are all examples of wireless
networking.
Wireless Networking-continue
 Although any technology that does this could
be called wireless networking, the term
generally refers to wireless LANs (WLAN). A
WLAN is a grouping of network components
connected by electromagnetic (radio) waves
instead of cables.
 A wireless LAN basically consists of: the
network backbone; end-user devices such
as data collection units, handheld computers
and laptops; wireless LAN access points;
wireless cards; and software that will help
you manage the network.
Wireless Network-continue
 The history of wireless networking was over
fifty years ago, during World War II, when the
United States Army first used radio signals
for data transmission. They developed a
radio data transmission technology, which
was heavily encrypted.
 This inspired a group of researchers in 1971
at the University of Hawaii to create the first
packet based radio communications network.
Named ALOHNET, was the very first
wireless local area network (WLAN).
Wireless Network-continue
 This first WLAN consisted of 7 computers that
communicated in a bi-directional star topology
(see http://www.its.bldrdoc.gov/fs-1037/ and
http://www.webopedia.com/ -- both are
excellent sources of computer and
telecommunication terms and definitions) that
spanned four of the Hawaiian Islands.
 With the central computer based on Oahu
Island. With this, wireless networking was born.
Wireless Networking-continue
 While wired LANs have wholly dominated the
networking market, the last few years show a
rise in wireless networking usage.
 This can best be seen in academic circles (i.e.
University campuses), health-care,
manufacturing, and warehousing. All the while,
the technology is improving, making it easier
and cheaper from companies to go wireless.
Wireless Setup
How to setup a wireless home
Network?
Wireless Networking-steps
 Install the adapter according to the
manufacturer's instructions. (If you are
using a PCI adapter, you'll have to turn off
the computer, open the casing, insert the
adapter into a free PCI slot, and restart the
computer.)
 Windows will detect the adapter and
prompt you to install the driver on the
included CD-ROM.
Wireless Networking stepscontinue
 Install the network software that usually
comes with the hardware. You will be
prompted for the computer's name, and
asked if the current computer is meant to
be the server or client for Internet access.
 Restart the computer.
Wireless Networking stepscontinue
 Now you have to create a profile--the collection
of settings that let you use the network. You can
have several different profiles, so that if you take
your laptop to the office or the local networked
coffee house, you have only to switch profiles to
instantly connect to their network. To create a
profile, run the configuration program that's part
of the network software.
 Set the mode to ad hoc (the mode may be set as
peer-to-peer) if you're not using an access point,
or infrastructure if you are. #
Wireless Networking stepscontinue
 Enter the network name.
 If you're using an ad hoc network, set the
channel (a number from 1 to 11). All
adapters on a network must use the same
channel. (With an infrastructure network,
the client automatically configures itself to
the channel with the strongest signal.)
Wireless Networking stepscontinue
 Enter your encryption key--a series of
letters and numbers, like a password-according to the vendor's instructions.
 What are you waiting for? Grab your
notebook, head out to the veranda, and
check your e-mail.
Trouble Shooting
 Trouble shooting means to poke around a
computers data system looking for things
out of order.
 A few steps to follow:
 Consult your product vendors for support
or your help desk representative.
 Read the literature that came with the
software or peripheral.
Trouble Shooting-continue
 If you change something and it does not solve the
problem change it back. You do not want to make
your problems worse.
 Take one step at a time and document everything so
you can undo everything if necessary.
 Visit the vendors website to see if there is any
information on that product and how to trouble
shoot problems with it, apply any patch available to
resolve your problem. With Microsoft products most
times you can install a service pack or patch and
your problems will be resolved.
Material List
 Accesses point
 Antenna
 Ethernet Card
 Wireless Router
 Ethernet Switch
Top Sellers Access Points
 54 Mbps 802.11g
 $19.99
 NETGEAR
 Instant Wireless
WAP11, 802.11b
 $59.99
 Linksys
 Dual-Band Wireless
A+G 808.11a,b,g
 $169.99
 Linksys
 WA840G 802.11g
 $69.99
 Motorola
54 Mbps Wireless Access Point,
802.11g
 Works with both IEEE 802.11b + draft 802.11g (both
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2.4 GHz)
Speeds of up to 54 Mbps
Office roaming for notebook PC users
Shared broadband Internet access and resources
128-bit WEP encryption
Radio Frequency
Manufacturer: NETGEAR
Instant Wireless
 High-Speed Transfer Rate of Up to 11 Mbps
 Interoperable with IEEE 802.11b (DSSS)
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2.4GHzcompliant Equipment
Provides Roaming, Best Access Point Selection, Load
Balancing, and Network Traffic Filtering
Long Operating Range Supports 150m (indoor) and
500m (outdoor)
Adjustable Antennas Provide for Physical Configuration
Wireless Access Point Roaming and Bridging
MAC Address Filtering, IP Filtering, DHCP Client, and
SNMP Configuration Utility Password Protection
128-bit Hardware WEP Supported
Compatible with Virtually All Major Operating Systems
Manufacturer: Linksys
Access Point
 Access Point, Bridge and
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Repeater.
Coverage area:100m (inside)
300m (outside)
Modulation: Direct Sequence
Spread Spectrum
Speed Options: Data rate
selection (11M/5.5M/2M/1M)
RF Output Power: 23dBm
(200mW) and 13 dBm
Top Seller Antennas
 Powerline 54Mbps
 High Gain Antenna kit
Wall-Plugged
 $99.99
 NETGEAR
for TNC Connectors
 $69.99
 Linksys
 Wifi Locator-Wifi Signal
Detector, 802.11b,g
 $9.99
 Hawking Technology
 AirPlus G High Speed
2.4GHZ, 802.11g,b
 $79.99
 D-Link
AirPlus G
 Maximum wireless
signal rate based on
IEEE Standard 802.11g
specifications
 LEDS: Power, LAN,
WLAN
 Encryption & Security:
64 bit WEP & 128 bit
WEP.
 Maximum Data Rate:
54 Mbps
Ethernet Card
 6700G Plug & Share
 Radio Frequency
Wireless Notebook
Adapter, 802.11g
 Features:
 54 Mbps data
transmission speed
 Interoperates with all
802.11b or g
compliant devices
 WEP Encryption
 Wireless protocol
802.11g
2.4Ghz
 $9.99
NIC Card
 Frequency Range:
2412~2484 MHz
 Modulation: Direct
Sequence Spread
Spectrum
 Data Rate: 11, 5.5, 2
or 1 Mbps, autoselect
 Channels: US: 11
Wireless Routers
 6800G Plug & Share
 6850G, 802.11g
Wireless Router,
802.11g
 $19.99
 Manufacturer: AT&T
Wireless Router
 $29.99
 AT&T
 Connect at speed up to
108 Mbps
6800G Plug& Share Wireless Router
 Connect at speeds up to 54 Mbps
 Stay online and connected to your network
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from room to room in your home or office
Avoid the expense of structured wired
installations
Four RJ-45 compatible LAN Ports
One RJ-45 compatible WAN Port
Integrated firewall with VPN pass-through
WEP Encryption
Switch
 Transmission: Half/fullduplex, 10/100Mbps is
auto-negotiation for STP
 Up-link port: Independent
port
 Max. Forwarding rate:
148,800 packets per
second
5-port Fast Ethernet Switch
 $9.99
 Manufacturer:
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NETGEAR
Plug & Play installation,
no configuration
Auto-detects speed and
duplex
100 Mbps access/200
Mbps in full-duplex
Vertical option saves
space on your desk
 Designed specifically
for home and small
office users with rear
ports that reduce cable
clutter, and front status
lights for easy
monitoring.
Wireless Security
 Disadvantage-It is easier for a hacker to access a
network that is wireless than a network that is cabled.
 Solution-WEP (Wired Equivalent Privacy) encrypts data
sent over a wireless network. To gain access you must
know the network name (SSID) and have a password for
the network. The SSID and passwords are usually
changed.
 More advanced system is WPA (Wi-Fi Protected Access)
which provides individual users authentication as well
more secure encryption. Note only effective if support is
built into the operating system (Windows XP), anything
earlier is not compatible.
Conclusion
Future of Wireless Networks
 Increased use of laptop computers within the enterprise,
and increase in worker mobility have fuelled the demand
for wireless networks. Note that like any other
technology, there are challenges associated with the use
of WLANs But with the maturing of industry standards
and the deployment of lightweight wireless networking
hardware across a broad market section, wireless
technology has come of age.
The technology no doubt has witnessed increased
acceptance in the last few years not only within the
enterprise, but also within the home, public access, and
embedded device markets. This is made possible not
only by improvements in performance and manageability
but also security and interoperability as well and the
general decrease in price.
Works Cited
 http://netsecurity.about.com/od/hackertool
s/a/aa072004b.htm
 http://www.pcworld.idg.com.au/index.php/i
d;1395397229
 http://www.computerworld.com/mobiletopic
s/mobile/story/0,10801,86951,00.html
 http://vvmicrosystems.com/education.html