WIFI; making a wireless connection

Wireless Making a Connection

Introduction
Devices using Internet/Local Area Network (LAN)
Computers, and Personal Digital Assistants
Personal Video Recorders = TIVO & Replay
Game Consoles

How we use the devices
Email & Web browsing Business
File Sharing
Streaming music and video Learn
Ordering Pizza Play

Why not wired?
Wired connections (10-Base T) are great if !
Installation can be costly $40-$120 per outlet
Jacks and cables are ugly
You are tied down to the jack

Advantages of Wireless LAN (WLAN)
Freedom of movement
Can cost less
Installation time reduced

802.11 WLAN Protocols a / b / g
Protocol is states how the device communicate
Manufactures device can talk to each other
802.11a uses diff. frequency from 802.11b/g
Used when interference is an issue
802.11b is slower then 802.11g
11MBs 54MBs

What adapter to use? 802.11 a / b / g
802.11g adapters are the best bang for the buck
Most also 802.11b compatible
Less expensive then 802.11a
Great for transferring large files or streaming video
802.11b Most compatible and very cheap
Great when you only need to surf and check email
802.11a
Use when area is saturated with other wireless networks or you have unexplained low throughput on all channels (interference from other wireless devices)

Minimum Requirement $0-$70
Wireless LAN adapter or device with pre-existing WLAN
Permission to access existing network like SIU
Equipment Costs

Equipment Costs
Max Requirement (New Broadband) $120-$300
Router w/switch
802.11 Access Point
Wireless adapters

All-in-One Cable Solution Service through your cable television company

Digital Subscriber Line (DSL)All-in-1 Service through your Telephone company
D-Link DSL-G604T DSL modem
- 54 MBps = 802.11g
- 100 BASE TX = 10BaseT/RJ45 wired
- Ethernet, Fast Ethernet, IEEE 802.11g = wireless
- VPN, NAT, Firewall Protection, SPI Firewall, WEP: 128 = Protection methods between your computers and the internet

PCMCIA Adapters
Laptops w/o USB 2.0 ports
Or port is being used for mouse
Some may have port for external antenna
Can extended range for special circumstances

USB Adapters
Simple to install
Easy to remove and go when traveling
Powered by the host computer

Gaming Adapters
You have to program it prior to use in some cases
Can be used on any system that has a Network Interface Card (NIC) installed
Needs external 110VAC power source

PCI Cards
For Desktops computers
No available USB 2.0 ports
Normally have better antenna = better range/speed

Installation of a All-in-One Cable Modem/Router/Switch/Access Point
Location
Needs to be close to cable TV outlet
Best in room with the most computers
Run RJ-45 LAN cable to the close machines
Leave the wireless connections for less used or distant devices

Installation of a All-in-One
Needs accessories
75ohm coax jumper from wall to modem
Splitter if you want to use the connection for T.V. (This can reduce the signal quality)
LAN cables for each machine
Each machine should have a LAN port
Manuals for the devices to be configured!!!!

Configure first machine communicate with All-in-One
Go to Control Panel and open Network Connections
Dbl click Local Area Connection

Configure first machine communicate with All-in-One 1 2 3

Configure first machine communicate with All-in-One Set both to obtain automatically then click OK

Configure first machine communicate with All-in-One
Open web browser and type the following address: 192.168.0.1
Supply the default password to your router

All-in-one first screen

Calling the Cable Company
$29 w/ automatic checking withdrawal & year
Charter
Provide them information off the box or unit
They register the cable modem to work on their system

Installation of a All-in-One
Change the password for your router
Tape it to the bottom if you think you’ll forget

Installation of a All-in-One Provider may have you make some changes; Charter won’t Save

Installing the Wireless Adapter
Follow the instruction for adapter
You will need a driver for your adapter
Download the latest driver from the manufacture for best performance
The following is for the Netgear WG111 adapter

Install the adapter
Insert Driver CD and run Setup

Follow the software prompts carefully
Some software will walk you through the complete process
Others just install a driver and let you do the rest

$29 w/ automatic checking withdrawal & year
Charter
Provide them information off the box or unit
They register the cable modem to work on their system

Scan, select your network, then click connect
The strongest signal should be you

If your adapter software left you on your own
Control Panel  Network Connections  Wireless network

Click refresh list, choose your network, connect
1 2 3

Share a little
Your LAN/Internet should be active at this point
You have to enable File and Printer sharing to access files or printers on other machines
File Explorer  Right Click directory or printer 
This will cause vulnerabilities so be careful of what you give access to

Share a little
Select share Allow to change files??
1 2 3

Security
Very important
Encrypt your connection so people can’t spy on you
Not easily anyway
1

Security
Wireless Encryption Protocol (WEP)
Use 128bit to make it as hard as possible
Use a pass phrase that can’t be easily guessed or create one using random characters

Security
Wireless Encryption Protocol (WEP)
128 key uses 26 characters
Each device must use the same key
Change the key on occasion

Security 1 2 3 4 5

Done
Choose and buy equipment
Choose central location to install for best coverage
Share it and Secure it
Need more help; Google for your specific equipment it

For Additional information or slides
Email: [email_address]
Wireless LAN Shopping references:
Brick and Mortar stores = All in Fairview Heights within 1/3 mile from the mall Best Buy, Circuit City, Computer Resonance
Online = www.newegg.com , www.buy.com , www.dell.com
Finding good deal on technology: www.bensbargains.net , www.techbargains.com

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WIFI; making a wireless connection

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