home networks taught by gary gabris. home networks what is a home network what good is having one -...
TRANSCRIPT
Home Networks
Taught by
Gary Gabris
Home Networks
• What is a home network
• What good is having one - neat things you can do with one
• General network info
• How to set one up
• Q & A
What is a home network?
What is a home network?
• According to Wikipedia: a network is “a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information”.
What is a home network?
• According to Wikipedia: a network is “a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information”.
• Plain English: computers, etc. connected together so you can share stuff between them
What is a home network?
• According to Wikipedia: a network is “a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information”.
• Plain English: computers, etc. connected together so you can share stuff between them
• If you use the internet, you use a network
What good is a home network?
What good is a home network?
All your computers can share:
• A high speed internet connection
What good is a home network?
All your computers can share:
• A high speed internet connection
• One (or more) printers
What good is a home network?
All your computers can share:
• A high speed internet connection
• One (or more) printers
• External disk drive(s) for backup
What good is a home network?
All your computers can share:
• A high speed internet connection
• One (or more) printers
• External disk drive(s) for backup
• Scanner(s)
What good is a home network?
All your computers can share:
• A high speed internet connection
• One (or more) printers
• External disk drive(s) for backup
• Scanner(s)
• Files and folders on each computer
What good is a home network?
All your computers can share:
• A high speed internet connection
• One (or more) printers
• External disk drive(s) for backup
• Scanner(s)
• Files and folders on each computer
• Other network devices (cameras, etc)
General network info
Each device on a network needsa unique address (IP address)
Each device on a network needsa unique address (IP address)
• Like houses on a street:State, Town/City, Street name,Individual house numbers
Each device on a network needsa unique address (IP address)
• Like houses on a street:State, Town/City, Street name,Individual house numbers
• Network addresses are 4 numbers separated by periods.
Each device on a network needsa unique address (IP address)
• Like houses on a street:State, Town/City, Street name,Individual house numbers
• Network addresses are 4 numbers separated by periods.
• All devices on your network must have the first 3 numbers the same, and the last number different
Each device on a network needsa unique address (IP address)
• Like houses on a street:State, Town/City, Street name,Individual house numbers
• Network addresses are 4 numbers separated by periods.
• All devices on your network must have the first 3 numbers the same, and the last number different
• Most home networks are 192.168.1.x or 192.168.0.x
Types of network addresses
Types of network addresses
2 types – dynamic and static
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)• A little harder to set up
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)• A little harder to set up• Think of it like a house
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)• A little harder to set up• Think of it like a house
Dynamic:• Easiest to set up - a piece of equipment called a “router”
takes care of addresses (this is called DHCP).
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)• A little harder to set up• Think of it like a house
Dynamic:• Easiest to set up - a piece of equipment called a “router”
takes care of addresses (this is called DHCP).• Address could change
Types of network addresses
2 types – dynamic and staticStatic:• Address stays the same - may need this for some
devices (printers, etc)• A little harder to set up• Think of it like a house
Dynamic:• Easiest to set up - a piece of equipment called a “router”
takes care of addresses (this is called DHCP).• Address could change• Like renting a space at a campground for a camper
Equipment you need
Equipment you need
• Router
This handles the addressing, etc.
Equipment you need
• Router
This handles the addressing, etc.
• Network connection for your computer
(wired or wireless – more info later)
Equipment you need
• Router
This handles the addressing, etc.
• Network connection for your computer
(wired or wireless – more info later)
• Network connection for anything else (printer, scanner, etc.)
Equipment you need
• Router
This handles the addressing, etc.
• Network connection for your computer
(wired or wireless – more info later)
• Network connection for anything else (printer, scanner, etc.)
• For internet: modem and high speed service. Router may be part of modem.
Block diagram of a network
Modem(for internet) Router
Computer Other stuffPrinterComputer
This can be a wired or wireless connection
All data connections are bi-directional (data goes both ways)
Wired connection
Wired connection
• Most secure
Wired connection
• Most secure
• Fairly easy – just run a network cable to each device
Wired connection
• Most secure
• Fairly easy – just run a network cable to each device
• Generally faster than wireless (100 Mb/S)
Wired connection
• Most secure
• Fairly easy – just run a network cable to each device
• Generally faster than wireless (100 Mb/S)
• Difficult to have devices in different rooms (must run network cable through walls, etc)
Wireless connection (WiFi)
Wireless connection (WiFi)
• No wires needed – can use it in different rooms
Wireless connection (WiFi)
• No wires needed – can use it in different rooms
• More difficult to set up – highly recommended to use some type of password protection (more on this later)
Wireless connection (WiFi)
• No wires needed – can use it in different rooms
• More difficult to set up – highly recommended to use some type of password protection (more on this later)
• Generally slower than wired
Wireless connection (WiFi)
• No wires needed – can use it in different rooms
• More difficult to set up – highly recommended to use some type of password protection (more on this later)
• Generally slower than wired
• Can have interference problems
Wireless connectiontypes/speeds
3 different commonly used types/speeds: B, G, N
Wireless connectiontypes/speeds
3 different commonly used types/speeds: B, G, N• B – earliest, slowest (11 MB/s)• G – newer, faster (54 Mb/S max, mid 20s
typical), reasonably priced• N – newest, fastest (150 max), most expensive
Wireless connectiontypes/speeds
3 different commonly used types/speeds: B, G, N• B – earliest, slowest (11 MB/s)• G – newer, faster (54 Mb/S max, mid 20s
typical), reasonably priced• N – newest, fastest (150 max), most expensive
Later versions of routers are compatible with earlier devices, later versions of devices may not be compatible with earlier routers.
Wireless connectionpassword protection
3 different types
• WEP – not very secure
• WPA1 – more secure
• WPA2 – most secure – use this
Sharing a printer
Sharing a printer
• Use a device called a “print server”
Sharing a printer
• Use a device called a “print server”
• Use manufacturer’s instructions and/or installation disk
Sharing a printer
• Use a device called a “print server”
• Use manufacturer’s instructions and/or installation disk
• Use a static IP address
Sharing a printer
• Use a device called a “print server”
• Use manufacturer’s instructions and/or installation disk
• Use a static IP address
• Set up each computer to use the printer
• Set up a network
• Q & A