home networking - pcscw

Home Networking

Copyright © 2006 Bill Knight. All rights reserved.

Why Home Networking?

Share! Internet (broadband, even dial-up!)! Printer! External (USB) hard drives! Optical (CD, DVD) drives

! (but not burning)! Folders! Files

Wired Home Network

2 (or more) computers connected to routerModem connected to router! Internet shared

Network Setup Wizard! Shared folder(s)

Share Printer

Wired Home Network

Router

Cat-5cable Cat-5

cable

Internet shared

Printer shared

Folder(s) shared

Wireless Home Network

Router

Cat-5cable

Internet shared

Folder(s) shared

Printer shared

Some Terms

Wireless network connections! Ad-hoc ! Infrastructure

Wireless network protocols! 802.11b! 802.11g! 802.11n

Wireless Network ConnectionAd-hoc

Wireless Network ConnectionInfrastructure

RouterAccess Point

Cat-5cable

Client

Wireless Network Protocols

802.11b! Most common “public” protocol! Faster than most broadband! Usually only WEP security

802.11g (and “super” g)! Faster! Better security (WPA)

802.11n (“MIMO”)! More expensive

WEP and WPA Wireless Security

Technologies that "encrypt" wireless communicationsWEP! "Wireless Equivalent Privacy"

WPA (with AES)! "Wifi Protected Access"

WPA with TKIP/AES (WPA2)! AES (Advanced Encryption Standard)! TKIP (Temporal Key Integrity Protocol)

WPA2 Hotfix

For “Client” computersKB893357How do I know if I have it?Control Panel! Add or Remove Programs! Select “Show Updates”! Scroll down to “Windows XP – Software

Updates”

KB893357

Before we start

Workgroup (MSHOME) on all computersRouter/Access Point at “Default” settings! Router/Access point “wired” to a computer

Client/wireless computer! If hardware installed in computer, turn on! Or install Notebook Card! Or insert USB Adapter! Install hardware drivers (Plug and Play)

“Client” Computer

Open “My Network Places”

Select “View network connections”

Right click “Wireless Network Connection”

Select “Properties”

Note: “File and Printer Sharing for Microsoft Networks”

Scroll Down

Note: “Show icon …..”

Select “Internet Protocol”Select “Properties”

Select “Wireless Networks” Tab

Note: “Use Windows to configure ….”

Select “Advanced” Button

Note: “Access point (infrastructure) networks only

Explore for Wireless Networks

Right click wireless icon

Select “View Available Wireless Networks”

Select “Refresh Network List”

Select Wireless Network “linksys”

Select “Connect” button

Connected to Wireless Network “linksys”

Note Wireless Icon in System Tray

Unconnected

Scanning

Connected

Wireless Home Network

Router

Cat-5cable

Internet shared

Folder(s) shared

Printer shared

Exploring Network

Open “My Network Places”

Exploring Wireless Network

Hover over wireless icon in System Tray

Exploring Wireless Network


Select “View Available Wireless Networks”

Select “Change advanced settings”

Select “Properties” Button

“linksys” Properties

What does this mean?! Network Authentication – Open! Data Encryption – Disabled

Anybody in neighborhood! Connects to “linksys”

Internet shared!

Further

Anybody in neighborhood! Connects to “linksys”! Workgroup name “MSHOME”

Folder(s) shared!Printer(s) shared!

And


Select “Status”

Select “Support” Tab

“Default Gateway” is IP address of Router/Access Point

Start “Internet Explorer”

Type IP address (192.168.1.1) into “Address” bar

Enter “User Name” and “Password”

For Linksys Router/Access Point! User name – blank! Password – “admin”

Anybody in Neighborhood

Access to your Internet connectionAccess to your shared folders and filesAccess to your printer(s)Access to your router/access point

Wireless Security

Password/encrypt wireless from routerConnect client(s) to password/encrypted access point

Router/Access Point Settings

Start “Internet Explorer”Type IP address (192.168.1.1) into “Address”“Enter”

Enter “User Name” (blank)Enter “Password” – “admin”

Select “Wireless” Tab

Select a “Wireless Network Mode”; Select “Save Settings”

Select “Wireless Security” Tab

Select “Security Mode”

Select “Save Settings”

View “Available Wireless Networks”

Note: May need to Refresh network list”

Select “Connect” Button

Enter “Network Key”

“F9F5D99363”

“Secure” Wireless Network

“Secure” Wireless Network”

Without Network Key! Cannot connect to Internet! Shared folders and files not available! Shared printer(s) not available! No access to router/access point

Secure Wireless Home Network

Configure Router/Access PointConfigure ClientsSoftware! Router/Access Point

! Setup Utility! Client Wireless Hardware

! Monitor Utility

Router/Access Point Settings

Enable Wireless Security! WPA2, WPA, WEP(128), WEP(64)

Change SSID name! (Service Set Identifier)

Disable SSID BroadcastChange router/access point (User Name) and Password

Configure Router/Access Point

Open “Internet Explorer”Type Gateway IP address in “Address”EnterType (User Name), Password into password box! Default (for Linksys) – admin

OK

Router/Access Point Setup

Select “Wireless”Select Network Mode! G-Only

Wireless Network Name (SSID)! Saguaro

Wireless ChannelWireless SSID Broadcast! Disable

Save Settings


WEP (64)! Passphrase (GrandCanyon), “Generate” button! Use Key 1, for “Client(s)”! Save Settings


WEP (128)! Passphrase (GrandCanyon), “Generate” button! Use Key 1, for “Client(s)”! Save Settings


WPA! Passphrase (GrandCanyon)! Will need for “Client(s)”! Save Settings

Select “Administration”

Change “Router Password”! Save Settings

Client Settings

Computer with wireless hardware! Turn on or install hardware

View “Available Wireless Networks”Refresh Network ListConnect to Selected NetworkEnter Network Key


Note: When Wireless SSID Broadcast disabled,network does not appear in wireless network list.

Select “Setup wireless network for home or small office”

Check “Set up a new wireless network”

SSIDfrom

router/access point

Note: Check if using WPA

Manually Assign a Network Key

Note: Uncheck to see typed letters, otherwise “*” appear

Network keyfrom

router/access point


Note: When Wireless SSID Broadcast disabled,network does not appear in wireless network list.

Select “Change the order of preferred networks”

Connectionto broadcastdisabledsecurenetwork

Select “Properties” Button

“Secure”wirelessnetwork

Home Networking

Install hardware! Router! Wireless! Modem

Setup workgroup! Share printer(s), folder(s), files(s)

Setup router, for wireless securityConnect client/wireless computer(s)

Potential Problems

Connecting to router/access point for setupClient/wireless hardware may not be compatible with router/access point settingsConnecting client to access point! Distance, interfering structures

When You Travel

Disable file and printer sharingUnshare all shared foldersDisable Ad-hoc modeWhen firewall software pops up! Select “Do not trust …”! Disable file and printer sharing

Turn off or remove wireless hardware! Enable only when needed

Delete unused wireless networks from preferred network list

Helpful Internet Sites

homenethelp.comSearch! Microsoft! Google

Software! Home network setup - purenetworks.com! Wireless security – McAfee.com

! Wireless Home Network Security

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