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74
Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 2000 or XP Instructions
Wireless-G ADSL Gateway
Windows 2000 or XP Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
cmd
. Press the
Enter
key or click the
OK
button.
2.
At the command prompt, enter
ipconfig /all
. Then press the
Enter
key.
3.
Write down the Physical Address as shown on your computer screen (Figure D-3); it is the MAC address for
your Ethernet adapter. This appears as a series of numbers and letters.
The MAC address/Physical Address is what you will use for MAC filtering. The example in Figure D-3 shows
the Ethernet adapters’s MAC address as 00-00-00-00-00-00. Your computer will show something different.
The example in Figure E-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Figure D-3: MAC Address/Physical Address
Note:
The MAC address is also called the Physical Address.
Page 82 / 95
75
Appendix E: Upgrading Firmware
Wireless-G ADSL Gateway
Appendix E: Upgrading Firmware
The Gateway's firmware is upgraded through the Web-Utility's Firmware Upgrade tab from the Administration
tab. Follow these instructions:
1.
Click the Browse button to find the firmware upgrade file that you downloaded from the Linksys website and
then extracted.
2.
Double-click the firmware file you downloaded and extracted.
Click the Upgrade button, and follow the
instructions there.
Figure E-1: Upgrade Firmware
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76
Appendix F: Glossary
Wireless-G ADSL Gateway
Appendix F: Glossary
802.11a
- An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an
operating frequency of 5GHz.
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
- 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
- This is a device that adds network functionality to your computer.
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
- The frequency interval of the beacon, which is a packet broadcast by a Gateway to
synchronize a wireless network.
Bit
- A binary digit.
Boot
- To start a device and cause it to start executing instructions.
Bridge
- A device that connects two different kinds of local networks, such as a wireless network to a wired
Ethernet network.
Broadband
- An always-on, fast Internet connection.
Browser
- A browser is an application program that provides a way to look at and interact with all the
information on the World Wide Web.
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77
Appendix F: Glossary
Wireless-G ADSL Gateway
Buffer
- A block of memory that temporarily holds data to be worked on later when a device is currently too busy
to accept the data.
Cable Modem
- A device that connects a computer to the cable television network, which in turn connects to the
Internet.
CSMA/CA
(Carrier Sense Multiple Access/Collision Avoidance) - A method of data transfer that is used to prevent
data loss in a network.
CTS
(Clear To Send) - A signal sent by a device to indicate 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
(Dynamic Domain Name System) - The capability of having a website, FTP, or e-mail server-with a
dynamic IP address-use a fixed domain name.
Default Gateway
- A device that forwards Internet traffic from your local area network.
DHCP
(Dynamic Host Configuration Protocol) - A protocol that lets one device on a local network, known as a
DHCP server, assign temporary IP addresses to the other network devices, typically computers.
DMZ
(Demilitarized Zone) - Removes the Gateway's firewall protection from one computer, allowing it to be
"seen" from the Internet.
DNS
(Domain Name Server) - 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
(Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.
DSSS
(Direct-Sequence Spread-Spectrum) - A type of radio transmission technology that includes a redundant
bit pattern to lessen the probability of data lost during transmission. Used in 802.11b networking.
DTIM
(Delivery Traffic Indication Message) - A message included in data packets that can increase wireless
efficiency.
Page 85 / 95
78
Appendix F: Glossary
Wireless-G ADSL Gateway
Dynamic IP Address
- A temporary IP address assigned by a DHCP server.
Encryption
- Encoding data to prevent it from being read by unauthorized people.
Ethernet
- An IEEE standard network protocol that specifies how data is placed on and retrieved from a common
transmission medium.
Finger
- A program that tells you the name associated with an e-mail address.
Firewall
- Security measures that protect the resources of a local network from intruders.
Firmware
- 1. In network devices, the programming that runs the device. 2. Programming loaded into read-only
memory (ROM) or programmable read-only memory (PROM) that cannot be altered by end-users.
Fragmentation
- Breaking a packet into smaller units when transmitting over a network medium that cannot
support the original size of the packet.
FTP
(File Transfer Protocol) - A standard protocol for sending files between computers over a TCP/IP network and
the Internet.
Full Duplex
- The ability of a networking device to receive and transmit data simultaneously.
Gateway
- A system that interconnects networks.
Half Duplex
- Data transmission that can occur in two directions over a single line, but only one direction at a
time.
Hardware
- The physical aspect of computers, telecommunications, and other information technology devices.
HTTP
(HyperText Transport Protocol) - The communications protocol used to connect to servers on the World
Wide Web.
IEEE
(The Institute of Electrical and Electronics Engineers) - An independent institute that develops networking
standards.
Infrastructure
- Currently installed computing and networking equipment.
Infrastructure Mode
- Configuration in which a wireless network is bridged to a wired network via an access
point.
IP
(Internet Protocol) - A protocol used to send data over a network.
IP Address
- The address used to identify a computer or device on a network.

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