|
Networking
Your Notebook |
Connecting
your home, small office, or home office computers lets you share drives,
printers, and a single Internet connection among the connected computers.
This
chapter contains information about:
|
Benefits
of using a network in your home, small office, or home office
|
|
Types
of network connections |
|
Using
wireless networking |
|
Purchasing
additional network equipment |
The
benefits of using a network
|
Share
a single Internet connection |
|
Share
computer drives |
|
Share
peripheral devices |
|
Stream
audio and video files |
|
Play
multi-player games |
Sharing
a single Internet connection
A
network makes sharing the Internet easy. Each computer or Internet appliance
that is connected to the network can share the same modem and telephone
line or broadband connection and access the Internet at the same time.
This saves on the cost of installing another telephone line for your
second computer and paying for a second Internet Service Provider (ISP)
account.
|
|
Most
ISPs allow multiple users at the same time.
If
you use America Online as your ISP, you can:
- Log
onto America Online through one of your screen names and the
other computers can access the Internet using an Internet
browser.
- Upgrade
your service to AOL for Home Networks. This service allows
more than one of your screen names to be online through your
home network at one time.
|
Sharing
drives
With
a network, you can copy files from computer to computer by copying and
pasting or dragging and dropping. You will no longer waste your time
transferring files by using diskettes. In addition, you can
map
a drive from a computer on the network to a drive on another computer,
and access the file as if it were located on the hard drive of the computer
you are using.
Sharing
peripheral devices
Each
computer that is connected to the network can share the same peripheral
devices, such as a printer. Select print from the computer you are currently
using and your file is automatically printed on your printer no matter
where it is located on your network.
Streaming
audio and video files
With
a network, you can store audio files (such as the popular .MP3 files)
and video files on any networked computer, then play them on any of
the other computers or devices connected to your network, a process
called
streaming
.
Playing
multi-player games
With
a home network, you can play multi-player games. Load a game like
Microsoft Midtown Madness 2
on your computers, and in minutes, you and your friends can race in
competing cars through the streets of San Francisco.
Example
network
A
network connects all your computers and other devices so that you can
share files, programs, peripheral devices, and much more from any computer
in your home or office. The picture below shows an example of a home
network.
Selecting
a network connection
One
of the biggest decisions you will need to make when creating your network
is what type of connection you will use. Gateway supports both wired
and wireless connections.
Wired
connections
HPNA
Creating
an HPNA network is as easy as knowing where your telephone jacks and
computers are located. HPNA uses your home's standard telephone lines
and telephone jacks instead of special cabling to connect computers.
You can use your networked computers at the same time as you connect
to your ISP, send a fax, or talk on your telephone. For the best performance,
your computers or Internet appliances should have HPNA 2.0 network
cards or jacks for connecting to your network.
|
|
If
you have more than one telephone line in your home or office,
make sure that all the computers in your network are connected
to jacks that share the same telephone number.
|
Ethernet
or Fast Ethernet
Ethernet
is a type of connection commonly used in offices around the world. This
type of connection can also be used to build small computer networks
in the home. Ethernet is available at two different speeds: standard
Ethernet, which runs at the same speed as HPNA 2.0, and Fast Ethernet,
which runs up to ten times faster. To create an Ethernet network, you
or your electrician must install special cables in your home or office.
Your computers or Internet appliances must have Ethernet cards or jacks
for connecting to a 10 or 10/100 Ethernet switch or hub. If you are
connecting just two computers, you can eliminate the switch or hub and
use a special
crossover
cable.
|
|
Check
local code requirements before installing Ethernet cable or
other wiring in your home or office. Your municipality may require
you to obtain a permit and hire a licensed installer.
|
Broadband
Internet connections
You
can use your computer's Ethernet or USB jack for more than just networking.
Many broadband Internet connections, such as cable modems and DSL modems,
connect to your computer's Ethernet or USB jack. Typically, if one computer
is connected to the Internet, other networked computers can access the
Internet through the shared Internet connection. A broadband, versus
dial-up, connection adds speed and an "always on" connection to your
home network.
Wireless
Connections
Instead of
connecting your computers with wires, you can consider a wireless network.
Wireless Ethernet is ideal for creating a home or office network.
|
|
Radio
frequency wireless communication can interfere with equipment
on commercial aircraft. Current aviation regulations require wireless
devices to be turned off while traveling in an airplane. IEEE
802.11b (also known as wireless Ethernet or WiFi) communication
devices are examples of devices that provide wireless communication.
|
Wireless
Ethernet
A
wireless Ethernet network (also known as IEEE 802.11b or WiFi) exceeds
the speed of either HPNA 2.0 or standard Ethernet. In addition, this
type of network allows you the freedom to move about your home or office
with your computer. For example, you can take your notebook computer
from your home office to your patio without having a telephone or Ethernet
jack available.
Assessing
your connection needs
To
select the type of network that will work best for you, consider how
you will use your network.
HPNA
|
Your
home, small office, or home office has a telephone jack with the same
telephone number in each room that has a device you want to connect
|
|
You have
several Windows-based computers that are used for drive sharing, printing
to a single printer, or surfing the Internet |
|
Your
notebook computer has one of the following: |
|
An HPNA
jack for connecting to a telephone jack |
|
A USB
port to connect to a HPNA adapter |
|
Cost
savings is more important than network speed |
Ethernet
|
You are
building a new home or your existing home already has Ethernet cable
installed in each room that has a device you want to connect
|
|
You are
creating a network in an office or business |
|
Network
speed is more important than cost savings |
|
You have
a combination of Windows-based computers and non-Windows-based computers
that are used for drive sharing, printing to a single printer, or
surfing the Internet |
|
Your
notebook computer has an Ethernet jack for connecting to the network
|
Wireless
Ethernet (IEEE 802.11b, WiFi)
|
You are
looking for an alternative to using your telephone line or installing
cable for connectivity |
|
The ability
to move about with your computer is as important as network speed
|
|
You have
several Windows-based computers that are used for drive sharing, printing
to a single printer, or surfing the Internet |
|
Your
notebook computer has wireless Ethernet (IEEE 802.11b) for networking
|
Comparing
data transfer speed
When
deciding between connection types, compare the different data transfer
speeds provided by each to the programs you plan to run on your network.
The following table shows types of programs that you may run in your
home or small office and the connection speed each requires.
Type
of Program
|
Speed
Required
|
|
Voice
over IP (VoIP)
|
5-20 Kbps
|
|
Multiplayer
Game
|
20-80 Kbps
|
|
Dial-up
Internet
|
24-56 Kbps
|
|
MP3
Audio Streaming
|
80-200 Kbps
|
|
Printer
Sharing
|
80-200 Kbps
|
|
Broadband
Internet
|
100-1000 Kbps
|
|
File
Sharing
|
300-40000 Kbps
|
|
MPEG
Video Streaming
|
4000-8000 Kbps
|
Connection
|
Type
|
Rated
Maximum Speed
|
|
HPNA 2.0
|
Wired
|
10000 Kbps
|
|
Ethernet
|
Wired
|
10000 Kbps
|
|
Wireless
Ethernet (IEEE 802.11b or WiFi)
|
Wireless
|
11000 Kbps
|
|
Fast
Ethernet
|
Wired
|
100,000 Kbps
|
When
comparing the speed at which your network will need to run to the speed
you can get from the connection type, you should consider which programs
may run at the same time on your network.
For
example, you have stored several MP3 audio files on your network. You
typically play music on your desktop, and at the same time your teenager
may play music on her notebook. Playing two MP3 audio files simultaneously
requires 200 Kbps + 200 Kbps = 400 Kbps.
If at the same time you are playing two MP3 audio files, you also print
a file to your printer, the speed required increases to 200 Kbps + 200 Kbps + 200 Kbps = 600 Kbps.
A
comparison of the two tables on the previous page shows that HPNA 2.0,
Ethernet, and wireless Ethernet can handle most programs on a network.
If you anticipate using a combination of programs that regularly exceed
10000 Kbps, you should consider installing Fast Ethernet for your
connection.
Using
a wireless network
Your
notebook may have wireless Ethernet networking built-in. The information
in this section tells you how to set up and access a wireless network.
If your notebook does not have wireless networking built-in, and you
are interested in getting networking hardware for your notebook or other
computers to set up a network in your home or office, proceed to "Purchasing
additional network equipment".
|
|
Radio
frequency wireless communication can interfere with equipment
on commercial aircraft. Current aviation regulations require
wireless devices to be turned off while traveling in an airplane.
IEEE
802.11b (also known as wireless Ethernet or WiFi) communication
devices are examples of devices that provide wireless communication.
For instructions to turn wireless Ethernet on and off, see "Turning
your wireless Ethernet on or off in Windows XP" and "Turning
your wireless Ethernet on or off".
|
Using
wireless Ethernet in Windows XP
Setting
up wireless Ethernet networking in Windows XP
If
you have wireless Ethernet, the first time you start your notebook,
your system automatically installs the wireless Ethernet drivers. Immediately
following the initial startup, you may be instructed to run the Network
Setup Wizard.
|
|
The
following procedure uses the Windows XP Network Setup Wizard.
The example screens show those screens that typically appear
in the course of using the wizard. Your network situation may
differ from that used in this example, and therefore you may
encounter additional screens or screens with different selections.
Make sure you read each screen in the wizard and make your selections
based on your particular network situation.
|
To run
the Network Setup Wizard:
-
Click on
the Network Setup Wizard icon on the Windows XP taskbar.
Click
Start
, then select
All Programs, Communications
, then
Network Setup Wizard
. The Network Setup Wizard opens.
-
Click
Next
to continue through the wizard.
-
Click
Next
. The following screen opens.
-
Click to
select the
Ignore disconnected
network hardware
checkbox, then click
Next
. The following screen opens.
-
Select the
method that the notebook accesses the Internet, then click
Next
. The following screen opens.
Click
Other
for a list of additional methods, then make a selection and click
Next
. The following screen opens.
-
Select
Let me choose
the connections to my network
, then click
Next
. The following screen opens.
-
Click to
select the
Wireless Network
Connection
checkbox, then click
Next
. The following screen opens.
-
Enter a
description of the computer and the name by which the computer will
be identified on the network, then click
Next
. The following screen opens.
-
Enter
the name of the workgroup this notebook belongs to. This name is
usually assigned by the network system administrator and identifies
which group of computers this notebook is most likely to communicate
with.
-
Click
Next.
A summary of the network settings you have chosen appears.
-
Click
Next
to apply the network settings. The following screen opens.
-
If you
are setting up a wireless Ethernet network on other computers, you
may want to use the Network Setup Wizard to do so. Select a method
for installing and configuring the network on your other computers
and click
Next.
-
Click
Finish
.
Configuring
Windows XP for wireless Ethernet
To configure
Windows XP to use the wireless Ethernet network:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
Properties
. The Wireless Network Connection Properties dialog box opens.
-
Select
Internet Protocol
(TCP/IP), then click
Properties.
The Internet Protocol (TCP/IP) Properties dialog box opens.
-
Click the
General
tab.
-
If you are
using a DHCP server, click
Obtain an IP address
automatically
.
If you are
not using a DHCP server, click
Use the following
IP address
and enter the
IP Address
and
Subnet Mask
.
|
|
If
you are required to enter an IP Address and Subnet Mask, ask
your network system administrator for the correct values.
|
-
Click
OK
to close the Internet Protocol (TCP/IP) Properties dialog box.
-
Click
OK
to close the Wireless Network Connection Properties dialog box.
-
Click
X
to close the Network Connections window.
Turning
your wireless Ethernet on or off in Windows XP
There
are times, such as when you are flying in an aircraft, when you should
turn off your wireless Ethernet network. You can also turn off wireless
Ethernet to conserve battery power on your notebook.
To turn
wireless Ethernet on or off using the Start menu:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
Enable
to turn on wireless Ethernet or
Disable
to turn off wireless Ethernet.
Creating
a wireless Ethernet network
After
you have turned on wireless Ethernet networks, you may want to create
a new wireless Ethernet network. You can create either an access point
or peer-to-peer wireless Ethernet network.
Access
Point
An
access point
is a device that allows you to both join a wireless network and access
a wired network at the same time. You can create an access point wireless
network if you purchased an RG1000 or equivalent access point. The figure
below shows an example of an access point network.
To create
an access point wireless Ethernet network:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
View Available
Wireless Networks
. The Connect to Wireless Network dialog box opens.
-
Click
Advanced.
The Wireless Network Connection Properties dialog box opens.
-
Click the
Wireless Networks
tab.
-
Click
Add
. The Wireless Network Properties dialog box opens.
-
Enter
the name of the network. For an access point network, we recommend
entering the name of the access point device followed by the SSID
name found on the back of the access point. Example:
RG1000 1ff60a.
-
Click
the
Data encryption
(WEP enabled)
check box.
-
Click
to clear the
The key is provided
for me automatically
check box.
-
Enter
the network key. This key must be the last five digits of the network
name, for example
ff60a.
-
Select
ASCII characters
from the
Key format
list.
-
Select
40 bits (5 characters)
from the
Key length
list.
-
Select
0
from
the
Key index (advanced)
list.
-
Make sure
that the
Network Authentication
(Shared mode)
check box is not selected.
-
Make sure
that the
This is a computer-to-computer
(ad hoc)
network check box is not selected.
-
Click
OK
to close the Wireless Network Properties dialog box.
-
Click the
General
tab.
-
Select
Internet Protocol
(TCP/IP), then click
Properties.
The Internet Protocol (TCP/IP) Properties dialog box opens.
-
Click the
General
tab.
-
If you are
using a DHCP server, click
Obtain an IP address
automatically
.
If you are
not using a DHCP server, click
Use the following
IP address
and enter the
IP Address
and
Subnet Mask
.
|
|
If
you are required to enter an IP Address and Subnet Mask, ask
your network system administrator for the correct values.
|
-
Click
OK
to close the Internet Protocol (TCP/IP) Properties dialog box.
-
Click
OK
to close the Wireless Network Connection Properties dialog box.
Peer-to-peer
(ad hoc)
Use
a peer-to-peer (ad hoc) network if you are setting up or joining a temporary
or permanent computer-to-computer network for sharing files and peripheral
devices. This type of network does not include an access point into
a wired network.
To create
a peer-to-peer wireless Ethernet network:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
View Available
Wireless Networks
. The Connect to Wireless Network dialog box opens.
-
Click
Advanced.
The Wireless Network Connection Properties dialog box opens.
-
Click the
Wireless Networks
tab.
-
Click
Add
. The Wireless Network Properties dialog box opens.
-
Enter
the name of the network. For a peer-to-peer network, this can be
any network name not already in use, for example
Adhoc.
-
Click
the
This is a computer-to-computer
(ad hoc)
network check box.
-
If an
encryption key has been agreed to by the other members of your network,
enter this value.
-
Click
OK
to close the Wireless Network Properties dialog box.
-
Click the
General
tab.
-
Select
Internet Protocol
(TCP/IP), then click
Properties.
The Internet Protocol (TCP/IP) Properties dialog box opens.
-
Click the
General
tab.
-
Click
Use the following
IP address.
-
Enter an
IP Address
and
Subnet Mask
for each wireless computer on your ad hoc network. The IP Address
for computer 1 should end with a 1 and the IP Address for computer
2 should end with a 2.
-
Click
OK
to close the Internet Protocol (TCP/IP) Properties dialog box.
-
Click
OK
to close the Wireless Network Connection Properties dialog box.
Connecting
to a wireless Ethernet network in Windows XP
To connect
to an existing wireless Ethernet network:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
View Available
Wireless Networks
. The Connect to Wireless Network dialog box opens.
-
Select the
network you want to connect to, then click
Connect
.
Checking
network signal strength in Windows XP
If
your wireless Ethernet network is running slower than you expect, you
should check your network signal strength.
To check
signal strength of your wireless Ethernet network:
-
Click
Start,
then select
Control Panel.
-
Click
Network and
Internet Connections. The Network and Internet Connections
window opens.
-
Click
Network Connections.
The Network Connections window opens.
-
Right-click
Wireless Network
Connection.
-
Select
Status
. The Wireless Network Connection Status dialog box opens. The meter
registers the signal strength for wireless Ethernet on your notebook
if other computers with the same network name are within range of
your notebook.
|
|
Signal
strength is affected by the distance between your wireless network
devices, by radio interference, and interference from natural
obstructions such as walls, floors, and doors.
|
Using
wireless Ethernet in Windows Me, Windows 2000, and Windows 98
Installing
the ORiNOCO Client Manager
If
you have wireless Ethernet, the first time you start your notebook,
your system automatically installs the wireless Ethernet drivers. Immediately
following the initial startup, you may be asked to install the ORiNOCO
Client Manager. You may also need to install the ORiNOCO Client Manager
if it has not already been installed on your computer.
To see
if your wireless Ethernet client manager is installed:
|
Click
Start
, then select
Programs
,
ORiNOCO
, then
Client Manager
. If Client Manager is not listed on your Start menu, you will need
to install it. |
To install
the ORiNOCO Client Manager:
Configuring
the ORiNOCO client manager
If
you have wireless Ethernet, you need to configure your network settings.
To configure
your wireless Ethernet client manager:
-
Click
Start
, then select
Programs
,
ORiNOCO
, then
Client Manager
. The ORiNOCO Client Manager window opens.
-
Select
Actions
, then
Add/Edit Profile
. The Add/Edit Configuration Profile dialog box opens.
-
Enter
the name of the profile you are creating. When you create the first
profile, you should rename the Default profile to the name of your
profile. For example, if you will be using your computer on two
different networks, such as at home and at work, you may want to
name one profile Home and another one Work.
-
Select the
type of network associated with this profile. Your options include:
|
Access
Point - Use this network type if you are joining a wireless network
and accessing a wired network through an access point. Contact your
network system administrator or refer to the access point documentation
for more information about using this network type. |
|
Residential
Gateway - Use this network type if you are setting up or joining a
wireless network that is using a residential gateway to access the
Internet. |
|
Peer-to-Peer
Group - Use this network type if you are setting up or joining a temporary
or permanent computer-to-computer network for sharing files and peripheral
devices. This type of network does not include an access point into
a wired network. |
-
Click
Edit Profile
. The Edit Configuration dialog box opens.
-
Enter the
name of your network and the encryption key (if required).
|
If you
are connecting to an access point network, enter
ANY
to connect to any wireless Ethernet network within range of your notebook,
or enter the exact network name of the network you are joining.
|
|
If you
are connecting to a residential gateway network, enter the residential
gateway identifier number for the network name and the last five characters
of the residential gateway identifier number as the encryption key.
|
|
If you
are connecting to a peer-to-peer network, enter the exact network
name for the network you are joining. If an encryption key has been
agreed to by the other members of the network, enter this value as
well. |
|
|
All
computers on your network must have the same network name and
encryption key. For help, ask your network system administrator.
|
-
If you
are configuring your notebook for an access point network, tabs
are available to enter additional configuration information as necessary.
Contact your network system administrator or refer to the access
point documentation before entering this information.
-
Click
OK
to close the Edit Configuration dialog box.
-
If you
are setting up your notebook for more than one network, repeat steps
3 through 8 to create additional profiles.
-
Click
OK
to close the Add/Edit Configuration Profile dialog box.
Identifying
this notebook on the network
If
this is the first time you have used networking on your notebook, you
need to provide Windows with the name of the notebook and the workgroup
to which it belongs.
To identify
this notebook on the network:
-
Click
Start,
then select
Settings,
then
Control Panel.
The Control Panel window opens.
-
Double-click
the
Network
icon. The Network dialog box opens.
-
Click the
Identification
tab.
-
Enter
a unique computer name. This name identifies this notebook on the
network.
-
Enter
the name of the workgroup this notebook belongs to. This name is
usually assigned by the network system administrator and identifies
which group of computers this notebook is most likely to communicate
with.
-
Enter
a description of the notebook. This description lets other network
users identify who this notebook belongs to.
-
Click
OK
.
Configuring
Windows for wireless Ethernet
To configure
Windows to use the wireless Ethernet network:
-
Click
Start,
then select
Settings,
then
Control Panel.
The Control Panel window opens. If you do not see the Network icon,
click
view all Control
Panel options.
-
Double-click
the
Network
icon. The Network dialog box opens.
-
Select
TCP/IP -> ORiNOCO
Mini PCI Card
, then click
Properties
. The TCP/IP Properties dialog box opens.
-
Click
the
IP Address
tab.
-
If you are
using a DHCP server, click
Obtain an IP address
automatically
.
If you are
not using a DHCP server, click
Specify an IP address
and enter the
IP Address
and
Subnet Mask
.
|
|
If
you are required to enter an IP Address and Subnet Mask, ask
your network system administrator for the correct values.
|
-
Click
OK
to close the TCP/IP Properties dialog box.
-
Click
OK
to close the Network dialog box.
Checking
network signal strength
If
your wireless Ethernet network is running slower than you expect, you
should check your network signal strength.
To check
signal strength of your wireless Ethernet network:
|
Click
Start
, then select
Programs
,
ORiNOCO
, then
Client Manager
. The ORiNOCO Client Manager opens. |
The meter
on the left side now registers the signal strength for wireless Ethernet
on your notebook if other computers with the same network name are within
range of your notebook.
The status
box in the middle provides status and error messages.
|
|
Signal
strength is affected by the distance between your wireless network
devices, by radio interference, and interference due to natural
obstructions such as walls, floors, and doors.
|
Turning
your wireless Ethernet on or off
There
are times, such as when you are flying in an aircraft, when you should
turn off your wireless Ethernet network. You can also turn off wireless
Ethernet to conserve battery power on your notebook.
To turn
wireless Ethernet on or off using the Client Manager:
-
Right-click
the ORiNOCO Client Manager icon on the taskbar.
-
Select
Enable Radio
or
Disable Radio
.
Accessing
a different wireless Ethernet network
Once
you have set up your profiles for all the possible wireless Ethernet
networks you may want to access, it is easy to access a different network.
To access
a different wireless Ethernet network:
-
Right-click
the ORiNOCO Client Manager icon on the taskbar.
-
Select
Configuration
Profile
, then the profile that you have set up for the new network.
Purchasing
additional network equipment
HPNA
|
An
HPNA card installed in each desktop computer
- OR -
An HPNA/V.90 combination card installed in each desktop computer
- OR -
A USB HPNA adapter attached to each desktop or notebook computer
- OR - |
An HPNA
PC Card installed in each notebook computer
|
Modem
cable going from each computer to the closest telephone jack
|
|
|
All
HPNA components should be HPNA 2.0. A mixture of HPNA 1.0
and HPNA 2.0 components will result in your network running
at a slower speed.
|
Ethernet
|
An Ethernet card installed in each desktop computer
- OR -
An Ethernet jack on each desktop and notebook computer
- OR -
An Ethernet PC Card installed in each notebook computer |
|
An Ethernet
hub or switch with enough ports for each computer and device in the
network (hubs are slightly cheaper than switches but may run slower
than switches) |
|
Ethernet
cable going from each computer to the hub or switch |
|
|
All
Ethernet components should be either standard Ethernet (10 Mbps)
or Fast Ethernet (100 Mbps). A mixture of Ethernet and
Fast Ethernet components will result in your network running
at the slower speed.
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Wireless
Ethernet
|
A wireless
Ethernet (IEEE 802.11b) PCI card installed in each desktop computer
- OR -
A wireless Ethernet (IEEE 802.11b) PC Card installed in each notebook
computer that does not have wireless Ethernet built-in |
|
A wireless
Ethernet (IEEE 802.11b) Access Point if you want to connect your wireless
Ethernet to the Internet or a wired network |
For
more information
For
more information about the Gateway Connected Home or networking an office,
discuss your particular needs with your Gateway Country Store representative.
In addition, several books and Internet sites are dedicated to networking.
Refer to these sources for more information about networking your home
or office with HPNA, Ethernet, or Wireless Ethernet.
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