net basics
TRANSCRIPT
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NPower Mission
To inspire and empower nonprofits to use technology to better serve their
communities.
• Tech Assessments• Tech Workshops• Project Work• Managed Care
– Monitoring and Help desk with remote support
What we do..
LAN and WAN Internet Connections Network Devices Configuration Info Network Printing File Shareing
On the Menu Today
• WAN Wide Area NetworkInternet
• LAN Local Area NetworkInternal Office Network
WAN
LANLAN
LAN
LAN
LAN
LAN
Standard DSL download speed
(1.5 Mbps)
Standard DSL upload speed (384
kbps)
T1 Line (1.5 Mbps)
download & upload
“symmetrical”
Standard Cable download speed (6
Mbps)
Standard DSL upload speed (1.5
Mbps)
Internet Connectors
From LAN to Wan
WAN
Software Firewall ?Zone Alarm
Cable or DSL Modem
WAN
Cable or DSL Modem
Router
Stick with top brands:
Networking Equipment
ModemsDSL• 1 Phone In Line (from WAN)• 1 Network Out (Router’s WAN port or PC)• Needs Router or PC to “authenticate”
Cable• 1 Cable In Line (coax)• 1 Network Out (Router’s WAN port or PC)
FirewallSecures traffic between WAN and LAN• Usually integrated into Router• Can be separate device
Connected after Router
Typically seen with T1 Service
WAN
LANRouterFirewall
T1 Modem
24 Port Switch
Cable or DSL Modem
Router Firewall 4Port SwitchWireless Access Point
One for all!ADSL Router
• DSL Modem• Router• Firewall• 4 Port Switch
WANLAN
Routers
Separates the LAN from the WAN
Basic RouterBasic Firewall4 Port SwitchBasic Management
Wireless RouterBasic Firewall4 Port SwitchBasic ManagementWireless Access Point
High End RouterContent Filtering SubscriptionHigh Speed to WANAdvanced ManagementWireless Access Point
Wired vs. Wireless
Wired Connections:More reliable
Faster
More secure
Use wireless for Convenience and Necessity
Buy the Wireless and disable the WAP
Wireless Routers
Wireless N (pre N) – 108+ Mbps300 meter range
Wireless G – 54 Mbps speed 100 meter range
Not a standard yet…
Router Integration
• Router• Firewall• Wireless Access Point• Network Switch• DSL or cable modem• Print Server• USB Network Drive Port
• Reset Button!!
Erases configuration of router back to factory settings
IT DOES NOT “reboot” the modem
Configuring a Router
Use the Setup Wizard
WAN
Cable Connection
Select Cable or use defaults
DSL
Select and setup PPPOE connection using your DSL username and password to “authenticate” DSL modem
Configuring Router Wireless
Enable/Disable
SSID (“NewDetroitOpen”)
Channel ( From 6 to 11 )
Wireless Type (A/B, G, PreN, N)
Security (default is OPEN no pwd)
Router Wireless SecuritySecurity ModeWEP breakableWPA2 Personal (aka WPA2-PSK) more secureDefine Wireless Password or Key
Configuring Router
Change Default Admin Password
Router ManagementFrom browser: 192.168.1.1 or .0.1 then.. Enter username and pwd
DHCP Dynamic Host Configuration Protocol
Automatically sends IP information to PC’s, printers etc.
Range: Defined (ie. From 192.168.1.50 - .100)
Can ONLY be one service (if you have a server disable DHCP on router)
Hint: Label bottom of Router• Address: 192.168.1.1• Admin Pwd• SSID• Wireless Pwd
SwitchesDistributes Network Connections
• Switches vs. Hubs• Managed vs. UnManaged• Ports (4, 5, 8, 16, 24, 48 ports)• Speed ( 10/100 or 10/100/1000 gb)
Cable
• Cat5 (only 10/100)
• Cat5e ( 1000gb up to 200ft)
• Cat6 ( 100gb up to 300ft )
http://www.Cablesforless.com
Wireless Access Point (WAP)• Attached to Switch• Looks like a Router but is NOT• Has 1 Network port for connection to switch• Setup for Wireless only
SSIDWireless Security
Cable/DSL Modem
Firewall/Wireless Router
Private LAN
Switch
Basic Network Layout
• Use Workgroup Laser Printers over Dedicated
• Duplex, Color, Network Copier etc..
• Workgroup Printer Network setup
• Setup with “Static IP#” out of DHCP range
Network Printers
Laser3-5 cents
Inkjet10-35 cents
Networkedcopier
<2 cents
Colorlaser
7-9 cents
Source: http://www.jeffersondavis.k12.ms.us/Departments/InformationTechnology/FAQs/tabid/72/Default.aspxaccessed on 8/9/2007.
Printers
Print Servers
HP Jetdirect VS. Others
Network a non-network printer
NAS DevicesUsed For Network File Sharing
• Inexpensive alternative to Server• Reliable• Fairly easy to setup• User Securities• Fast
Cloud File Sharing
File Sharing and Backup from a Hosted Server• Amazon Jungle Disk• Mozy Pro• Ibackup
Great for “fragmented” org’s
Can be slow due to down/up load times
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