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68
Appendix B: Wireless Security
Security Threats Facing Wireless Networks
Compact Wireless-G Internet Video Camera
Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting
sensitive data over your network, encryption should be used.
These security recommendations should help keep your mind at ease while you are enjoying the most flexible
and convenient technology Linksys has to offer.
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69
Appendix C: Upgrading Firmware
Compact Wireless-G Internet Video Camera
Appendix C: Upgrading Firmware
The Camera's firmware is upgraded through the Web-based Utility's Administrator tab. Follow these instructions:
To upgrade the firmware, follow these instructions:
1.
Go to
www.linksys.com
and download the firmware upgrade file for the Camera. Then extract the file.
2.
Click the
Upgrade Firmware
button on the
Administrator
screen.
3.
On the
Upgrade Firmware
screen, click the
Browse
button to find the extracted file, and then double-click it.
4.
Click the
Start Upgrade
button, and follow the on-screen instructions. To cancel the upgrade, click the
Cancel
button. For further help, click the
Help
tab.
Figure C-1: Upgrade Firmware Screen
NOTE:
Linksys recommends that you upgrade the Camera’s firmware within your network; in other
words, use a computer within the Camera’s local network. If you attempt to upgrade the Camera’s
firmware from a remote location—using a computer outside of the Camera’s local network—the
upgrade will fail.
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70
Appendix D: Windows Help
Compact Wireless-G Internet Video Camera
Appendix D: Windows Help
Almost all wireless products require Microsoft Windows. Windows is the most used operating system in the world
and comes with many features that help make networking easier. These features can be accessed through
Windows Help and are described in this appendix.
TCP/IP
Before a computer can communicate with an access point or router, TCP/IP must be enabled. TCP/IP is a set of
instructions, or protocol, all PCs follow to communicate over a network. This is true for wireless networks as well.
Your PCs will not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides
complete instructions on enabling TCP/IP.
Shared Resources
If you wish to share printers, folders, or files over your network, Windows Help provides complete instructions on
using shared resources.
Network Neighborhood/My Network Places
Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the
version of Windows you’re running). Windows Help provides complete instructions on adding PCs to your
network.
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71
Appendix E: Glossary
Compact Wireless-G Internet Video Camera
Appendix E: Glossary
802.11b
- An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an
operating frequency of 2.4GHz.
802.11g
- An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an
operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.
Access Point
- A device that allows wireless-equipped computers and other devices to communicate with a
wired network. Also used to expand the range of a wireless network.
Adapter
- A device that adds network functionality to your PC.
Ad-hoc
- A group of wireless devices communicating directly with each other (peer-to-peer) without the use of
an access point.
Backbone
- The part of a network that connects most of the systems and networks together, and handles the
most data.
Bandwidth
- The transmission capacity of a given device or network.
Beacon Interval
- Data transmitted on your wireless network that keeps the network synchronized.
Bit
- A binary digit.
Boot
- To start a device and cause it to start executing instructions.
Bridge
- A device that connects different networks.
Broadband
- An always-on, fast Internet connection.
Browser
- An application program that provides a way to look at and interact with all the information on the
World Wide Web.
Buffer
- A shared or assigned memory area that is used to support and coordinate different computing and
networking activities so one isn't held up by the other.
Byte
- A unit of data that is usually eight bits long
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72
Appendix E: Glossary
Compact Wireless-G Internet Video Camera
Cable Modem
- A device that connects a computer to the cable television network, which in turn connects to the
Internet.
CSMA/CA
(
C
arrier
S
ense
M
ultiple
A
ccess/
C
ollision
A
voidance) - A method of data transfer that is used to prevent
data collisions.
CTS
(
C
lear
T
o
S
end) - A signal sent by a wireless device, signifying that it is ready to receive data.
Daisy Chain
- A method used to connect devices in a series, one after the other.
Database
- A collection of data that is organized so that its contents can easily be accessed, managed, and
updated.
DDNS
(
D
ynamic
D
omain
N
ame
S
ystem) - Allows the hosting of a website, FTP server, or e-mail server with a
fixed domain name (e.g., www.xyz.com) and a dynamic IP address.
Default Gateway
- A device that forwards Internet traffic from your local area network.
DHCP
(
D
ynamic
H
ost
C
onfiguration
P
rotocol) - A networking protocol that allows administrators to assign
temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time,
instead of assigning permanent IP addresses.
DMZ
(
D
e
m
ilitarized
Z
one) - Removes the Router's firewall protection from one PC, allowing it to be “seen” from
the Internet.
DNS
(
D
omain
N
ame
S
erver) - The IP address of your ISP's server, which translates the names of websites into IP
addresses.
Domain
- A specific name for a network of computers.
Download
- To receive a file transmitted over a network.
DSL
(
D
igital
S
ubscriber
L
ine) - An always-on broadband connection over traditional phone lines.
DSSS
(
D
irect-
S
equence
S
pread-
S
pectrum) - Frequency transmission with a redundant bit pattern resulting in a
lower probability of information being lost in transit.
DTIM
(
D
elivery
T
raffic
I
ndication
M
essage) - A message included in data packets that can increase wireless
efficiency.
Dynamic IP Address
- A temporary IP address assigned by a DHCP server.
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