Wi-Fi Networking in Midsized Business

8/6/2019 Wi-Fi Networking in Midsized Business

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WiWi--Fi NetworkingFi Networking

Presented By

S. HEPSIBHA


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IntroductionIntroduction

yWi-Fi is a wireless standard forconnecting electronic devices.

y Wi-Fi enabled device such as apersonal computer, video gameconsole, Smart phone, and digitalaudio player can connect to the

Internet when within range of awireless network connected to theInternet.


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What is WiWhat is Wi--Fi?Fi?

y Short for wireless fidelity and is meant

to be used generically when referring to

any type of 802.11 network, wh

eth

er802.11b, 802.11a, 802.11g, dual- band, etc

y Wifi is a wireless technology that uses

radio frequency to transmit data throug

h

the air


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What can you do with it?What can you do with it?

y Quick/easy temp network access

y Staff access to Corporate network

y

Patron internet access (h

otspot)y Interconnecting two networks


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What do you need to do WiWhat do you need to do Wi--Fi?Fi?

y Existing wired network/services

(Infrastructure Mode)x DHCP/DNS

y Access point

y Antennas and bridges

y Wireless adapter


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WiWi--Fi Network is made up ofFi Network is made up of

y Wireless Network cards

y Base stations,

y A

ccess points, ory Gateways


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How WiHow Wi--Fi works?Fi works?


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How WiHow Wi--Fi works?Fi works?

y The base station sends and receives radio

signals to and from the Wi-Fi radio in

your laptop or PC, enabling you to share

your Internet connection with otherusers on the network.

y Access points and gateways have a wide

range of features and performancecapabilities, but they all provide this basic

network connection service.


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Why WiWhy Wi--Fi?Fi?

y Setup Cost Reduced cabling required

y Flexibility Quick and easy to setup in

y temp or permanent space

y Scalable Can be expanded with growth

y Freedom You can work from any location

that you can get a signal

y Lower total cost of ownership Because of

affordability and low install cost

AdditionallyMobile Users Can access the Corporate

network from any public hotspot using VPN


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Advantages of WiAdvantages of Wi--FiFi

y Wi-Fi can make access publicly available at

Wi-Fi hotspots.

y Does not require regulatory approval for

individual.

y Wi-Fi network can support roaming.

y

Wi-Fi allows local area network todeployed without wires for client devices


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Disadvantages of WiDisadvantages of Wi--FiFi

y Planning Depending on the goal

y Security Greater exposure to risks

Access

Compromising DataDenial ofService

y Speed Slower than cable

y

Range A

ffected by various mediumTravels best through open space

Reduced by walls, glass, water, etc


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RecommendationRecommendation

y Data Security/Encryption

Third Party solution Fortress

Wi-Fi Protected Access (WPA)

Wired Equivalent Privacy (WEP)-Shared key

y AccessWPA/WEP

Close System No advertising

MACAuthentication MAC address control

y Attack Denial of

Service

y Client Protection

Antivirus/Firewall


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Documents

Wi-Fi Networking in Midsized Business