Linksys WAP55AG Router Manual PDF (Setup & Configuration Guide)

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Dual-Band Wireless A + G Access Point

Select

NWLink IPX/SPX/NetBIOS Compatible Transport Protocol

from the list and click the

button.

When the

Network

window reappears, click the

button. Restart your

computer. NWLink IPX/SPX/NetBIOS Compatible Transport Protocol has

now been successfully installed.

Click the

Start

button and open the

Control Panel

Double click the

Network and Internet Connections

icon.

Double click the

Network Connections

icon.

Right click the

Local Area Connection

icon and select

Properties

If the

TCP/IP Protocol

is listed for your network adapter, go to step five.

Otherwise, click the

Install

button.

When the

Component Type

window appears, select

Protocol

, and click the

Add

button.

Select

Internet Protocol (TCP/IP)

from the list and click the

button.

When the

Local Area Connection Properties

window reappears, select

TCP/IP

, and click the

Properties

button.

Select

Use the following IP Address

10. Enter an IP Address for the computer, along with a Subnet Mask and

Default Gateway. Then, click the

button. If you do not have these val-

ues, consult your network administrator.

11. When the

Local Area Connection Properties

window reappears, click the

button. TCP/IP has now been successfully installed..

Instant Wireless

Series

When the

Network

window appears, click the

Protocols

tab. Then, click

the

Add

button.

Find the

IPX/SPX protocol

in the

Select Network Protocol

field. Click it

once and click the

button.

At the Windows 2000 desktop, right click

My Network Places

and select

Properties

. Then, right click

Local Area Connection

Choose

Properties

If the

TCP/IP Protocol

is listed for your network adapter, go to step five.

Otherwise, click the

Install

button.

When the

Component Type

window appears, select

Protocol

, and click the

Add

button.

Select

Internet Protocol (TCP/IP)

from the list and click the

button.

When the

Local Area Connection Properties

window reappears, select

TCP/IP

, and click the

Properties

button.

Select

Use the following IP Address

Enter an IP Address for the computer, along with a Subnet Mask and

Default Gateway. Then, click the

button. If you do not have these val-

ues, consult your network administrator.

When the

Local Area Connection Properties

window reappears, click the

button. TCP/IP has now been successfully installed.

At the Windows 2000 desktop, right click

My Network Places

Then right

click

Local Area Connection

Choose

Properties

If the

NWLink IPX/SPX/NetBIOS Compatible Transport Protocol

is listed

for your network adapter, click the

Cancel

button. Otherwise, click the

Install

button.

When the Component Type window appears, select

Protocol

and click the

Install

button.

TCP/IP Setup for Windows XP

TCP/IP Setup for Windows 2000

IPX Setup for Windows 2000

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Dual-Band Wireless A + G Access Point

Instant Wireless

Series

Beacon Interval

A beacon is a packet broadcast by the Access Point to keep

the network synchronized. A beacon includes the wireless LAN service area,

the AP address, the Broadcast destination addresses, a time stamp, Delivery

Traffic Indicator Maps, and the Traffic Indicator Message (TIM).

Bit

- A binary digit. The value - 0 or 1-used in the binary numbering system.

Also, the smallest form of data.

Boot

- To cause the computer to start executing instructions. Personal comput-

ers contain built-in instructions in a ROM chip that are automatically executed

on startup. These instructions search for the operating system, load it and pass

control to it.

Bridge

- A device that interconnects different networks together.

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 or PC. The word

"browser" seems to have originated prior to the Web as a generic term for user

interfaces that let you browse text files online.

BSS

(

asic

ervice

et) - An infrastructure network connecting wireless

devices to a wired network using a single access point.

Buffer

- A buffer is a shared or assigned memory area used by hardware

devices or program processes that operate at different speeds or with different

sets of priorities. The buffer allows each device or process to operate without

being held up by the other. In order for a buffer to be effective, the size of the

buffer and the algorithms for moving data into and out of the buffer need to be

considered by the buffer designer. Like a cache, a buffer is a "midpoint holding

place" but exists not so much to accelerate the speed of an activity as to sup-

port the coordination of separate activities.

CSMA/CA

(

arrier

ense

ultiple

ccess/

ollision

voidance) - In local

area networking, this is the CSMA technique that combines slotted time-divi-

sion multiplexing with carrier sense multiple access/collision detection

(CSMA/CD) to avoid having collisions occur a second time. This works best if

the time allocated is short compared to packet length and if the number of sit-

uations is small.

CTS

(

lear

end) - An RS-232 signal sent from the receiving station to the

transmitting station that indicates it is ready to accept data.

Appendix C: Glossary

802.11a

- One of the IEEE standards for wireless networking hardware.

Products that adhere to a specific IEEE standard will work with each other,

even if they are manufactured by different companies. It specifies a maximum

data transfer rate of 54Mbps and an operating frequency of 5GHz. The 802.11a

standard uses the Orthogonal Frequency Division Multiplexing (OFDM) trans-

mission method. Additionally, the 802.11a standard supports 802.11 features

such as WEP encryption for security.

802.11b

- One of the IEEE standards for wireless networking hardware.

Products that adhere to a specific IEEE standard will work with each other,

even if they are manufactured by different companies. The 802.11b standard

specifies a maximum data transfer rate of 11Mbps, an operating frequency of

2.4GHz, and WEP encryption for security. 802.11b networks are also referred

to as Wi-Fi networks.

802.11g

- A proposed, but as yet unratified extension of the IEEE 802.11 stan-

dard for wireless networking hardware. The draft 802.11g specifications used

by Linksys specify a maximum data transfer rate of 54Mbps using OFDM

modulation, an operating frequency of 2.4GHz, backward compatibility with

IEEE 802.11b devices, and WEP encryption for security.

Adapter

- Printed circuit board that plugs into a PC to add to capabilities or

connectivity to a PC. In a networked environment, a network interface card is

the typical adapter that allows the PC or server to connect to the intranet and/or

Internet.

Ad-hoc Network

- An ad-hoc network is a group of computers, each with a

wireless adapter, connected as an independent 802.11 wireless LAN.

Ad-hoc

wireless computers operate on a peer-to-peer basis, communicating directly

with each other without the use of an access point.

Ad-hoc mode is also

referred to as an Independent Basic Service Set (IBSS) or as peer-to-peer

mode, and is useful at a departmental scale or SOHO operation.

Backbone

- The part of a network that connects most of the systems and net-

works together and handles the most data.

Bandwidth

- The transmission capacity of a given facility, in terms of how

much data the facility can transmit in a fixed amount of time; expressed in bits

per second (bps).

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Dual-Band Wireless A + G Access Point

Instant Wireless

Series

point), the DSSS signal is recognized as the only valid signal, and interference

is inherently rejected (ignored).

DTIM

(

elivery

raffic

ndication

essage) - A DTIM field is a countdown

field informing clients of the next window for listening to broadcast and mul-

ticast messages. When the AP has buffered broadcast or multicast messages for

associated clients, it sends the next DTIM with a DTIM Interval value.

Clients hear the beacons and awaken to receive the broadcast and multicast

messages.

Encryption

- A security method that applies a specific algorithm to data in

order to alter the data's appearance and prevent other devices from reading the

information.

ESS

(

xtended

ervice

et) - A set of more than two or more BSSs (multiple

access points) forming a single network.

Ethernet

- IEEE standard network protocol that specifies how data is placed

on and retrieved from a common transmission medium. Has a transfer rate of

10 Mbps. Forms the underlying transport vehicle used by several upper-level

protocols, including TCP/IP and XNS.

FHSS

(

requency

opping

pread

pectrum) - FHSS continuously changes

(hops) the carrier frequency of a conventional carrier several times per second

according to a pseudo-random set of channels. Because a fixed frequency is not

used, and only the transmitter and receiver know the hop patterns, interception

of FHSS is extremely difficult.

Firewall

- A firewall is a set of related programs, located at a network gateway

server, that protects the resources of a network from users from other networks.

(The term also implies the security policy that is used with the programs.) An

enterprise with an intranet that allows its workers access to the wider Internet

installs a firewall to prevent outsiders from accessing its own private data

resources and for controlling what outside resources to which its own users

have access.

Basically, a firewall, working closely with a router, examines each network

packet to determine whether to forward it toward its destination.

Firmware

- Code that is written onto read-only memory (ROM) or program-

mable read-only memory (PROM).

Once firmware has been written onto the

ROM or PROM, it is retained even when the device is turned off.

Database

- A database is a collection of data that is organized so that its con-

tents can easily be accessed, managed, and updated.

Data Packet

- One frame in a packet-switched message. Most data communi-

cations is based on dividing the transmitted message into packets. For example,

an Ethernet packet can be from 64 to 1518 bytes in length.

Default Gateway

- The routing device used to forward all traffic that is not

addressed to a station within the local subnet.

DHCP

(

ynamic

ost

onfiguration

rotocol) - A protocol that lets network

administrators manage centrally and automate the assignment of Internet

Protocol (IP) addresses in an organization's network. Using the Internet's set of

protocol (TCP/IP), each machine that can connect to the Internet needs a

unique IP address. When an organization sets up its computer users with a con-

nection to the Internet, an IP address must be assigned to each machine.

Without DHCP, the IP address must be entered manually at each computer and,

if computers move to another location in another part of the network, a new IP

address must be entered. DHCP lets a network administrator supervise and dis-

tribute IP addresses from a central point and automatically sends a new IP

address when a computer is plugged into a different place in the network.

DHCP uses the concept of a "lease" or amount of time that a given IP address

will be valid for a computer. The lease time can vary depending on how long a

user is likely to require the Internet connection at a particular location. It's espe-

cially useful in education and other environments where users change fre-

quently. Using very short leases, DHCP can dynamically reconfigure networks

in which there are more computers than there are available IP addresses.

DHCP supports static addresses for computers containing Web servers that

need a permanent IP address.

Download

- To receive a file transmitted over a network. In a communications

session, download means receive, upload means transmit.

DSSS

(

irect-

equence

pread

pectrum) - DSSS generates a redundant bit

pattern for all data transmitted. This bit pattern is called a chip (or chipping

code).

Even if one or more bits in the chip are damaged during transmission,

statistical techniques embedded in the receiver can recover the original data

without the need for retransmission. To an unintended receiver, DSSS appears

as low power wideband noise and is rejected (ignored) by most narrowband

receivers.

However, to an intended receiver (i.e. another wireless LAN end-

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Dual-Band Wireless A + G Access Point

IP Address

- In the most widely installed level of the Internet Protocol (IP)

today, an IP address is a 32-binary digit number that identifies each sender or

receiver of information that is sent in packet across the Internet. When you

request an HTML page or send e-mail, the Internet Protocol part of TCP/IP

includes your IP address in the message (actually, in each of the packets if more

than one is required) and sends it to the IP address that is obtained by looking

up the domain name in the Uniform Resource Locator you requested or in the

e-mail address you're sending a note to. At the other end, the recipient can see

the IP address of the Web page requestor or the e-mail sender and can respond

by sending another message using the IP address it received.

IPX

(

nternetwork

acket E

change) - A NetWare communications protocol

used to route messages from one node to another. IPX packets include network

addresses and can be routed from one network to another.

ISM band

- The FCC and their counterparts outside of the U.S. have set aside

bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical)

band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made avail-

able worldwide. This presents a truly revolutionary opportunity to place con-

venient high-speed wireless capabilities in the hands of users around the globe.

LAN

(

ocal

rea

etwork) - A group of computers and associated devices that

share a common communications line and typically share the resources of a

single processor or server within a small geographic area (for example, within

an office building).

MAC

(

edia

ccess

ontrol)

Address

- A unique number assigned by the

manufacturer to any Ethernet networking device, such as a network adapter,

that allows the network to identify it at the hardware level.

Mbps

(

ega

its

econd) - One million bits per second; unit of measure-

ment for data transmission.

Multicasting

- Sending data to a group of nodes instead of a single destination.

NetBIOS

- The native networking protocol in DOS and Windows networks.

Although originally combined with its transport layer protocol (NetBEUI),

NetBIOS today provides a programming interface for applications at the ses-

sion layer (layer 5). NetBIOS can ride over NetBEUI, its native transport,

which is not routable, or over TCP/IP and IPX/SPX, which are routable proto-

cols.

Fragmentation

- Breaking a packet into smaller units when transmitting over

a network medium that cannot support the original size of the packet.

Full Duplex

- The ability of a device or line to transmit data simultaneously in

both directions.

Gateway

- A device that interconnects networks with different, incompatible

communications protocols.

Hardware

- Hardware is the physical aspect of computers, telecommunica-

tions, and other information technology devices. The term arose as a way to dis-

tinguish the "box" and the electronic circuitry and components of a computer

from the program you put in it to make it do things. The program came to be

known as the software.

Hop

- The link between two network nodes.

IEEE

(The

nstitute of

lectrical and

lectronics

ngineers) - The IEEE

describes itself as "the world's largest technical professional society, promoting

the development and application of electrotechnology and allied sciences for

the benefit of humanity, the advancement of the profession, and the well-being

of our members."

The IEEE fosters the development of standards that often become national and

international standards. The organization publishes a number of journals, has

many local chapters, and several large societies in special areas, such as the

IEEE Computer Society.

Infrastructure Network

- An infrastructure network is a group of computers

or other devices, each with a wireless adapter, connected as an 802.11 wireless

LAN.

In infrastructure mode, the wireless devices communicate with each

other and to a wired network by first going through an access point.

An infra-

structure wireless network connected to a wired network is referred to as a

Basic Service Set (BSS).

A set of two or more BSS in a single network is

referred to as an Extended Service Set (ESS).

Infrastructure mode is useful at

a corporation scale, or when it is necessary to connect the wired and wireless

networks.

(

nternet

rotocol) - The method or protocol by which data is sent from one

computer to another on the Internet. It is a standard set of rules, procedures, or

conventions relating to the format and timing of data transmission between two

computers that they must accept and use to be able to understand each other.

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Dual-Band Wireless A + G Access Point

RJ-45

(

egistered

ack-

) - A connector similar to a telephone connector that

holds up to eight wires, used for connecting Ethernet devices.

Roaming

- In an infrastructure mode wireless network, this refers to the abili-

ty to move out of one access point's range and into another and transparently

reassociate and reauthenticate to the new access point.

This reassociation and

reauthentication should occur without user intervention and ideally without

interruption to network connectivity.

A typical scenario would be a location

with multiple access points, where users can physically relocate from one area

to another and easily maintain connectivity.

Router

- Protocol-dependent device that connects subnetworks together.

Routers are useful in breaking down a very large network into smaller subnet-

works; they introduce longer delays and typically have much lower throughput

rates than bridges.

RTS

(

equest

end) - An RS-232 signal sent from the transmitting station

to the receiving station requesting permission to transmit.

Server

- Any computer whose function in a network is to provide user access

to files, printing, communications, and other services.

SNMP

(

imple

etwork

anagement

rotocol)

- A widely used network

monitoring and control protocol. Data is passed from SNMP agents, which are

hardware and/or software processes reporting activity in each network device

(hub, router, bridge, etc.) to the workstation console used to oversee the net-

work. The agents return information contained in a MIB (Management

Information Base), which is a data structure that defines what is obtainable

from the device and what can be controlled (turned off, on, etc.).

Software

- Instructions for the computer. A series of instructions that performs

a particular task is called a "program." The two major categories of software are

"system software" and "application software." System software is made up of

control programs such as the operating system and database management sys-

tem (DBMS). Application software is any program that processes data for the

user.

A common misconception is that software is data. It is not. Software tells the

hardware how to process the data.

SOHO

(

mall

ffice/

ome

ffice) - Market segment of professionals who

work at home or in small offices.

Instant Wireless

Series

NetBIOS computers are identified by a unique 15-character name, and

Windows machines (NetBIOS machines) periodically broadcast their names

over the network so that Network Neighborhood can catalog them. For TCP/IP

networks, NetBIOS names are turned into IP addresses via manual configura-

tion in an LMHOSTS file or a WINS server.

There are two NetBIOS modes. The Datagram mode is the fastest mode, but

does not guarantee delivery. It uses a self-contained packet with send and

receive name, usually limited to 512 bytes. If the recipient device is not listen-

ing for messages, the datagram is lost. The Session mode establishes a connec-

tion until broken. It guarantees delivery of messages up to 64KB long.

Network

- A system that transmits any combination of voice, video and/or data

between users.

Node

- A network junction or connection point, typically a computer or work

station.

OFDM

- Developed for wireless applications, Orthogonal Frequency Division

Multiplexing (OFDM) technology offers superior performance-increased data

rates and more reliable transmissions-than previous technologies, such as

DSSS. OFDM is a scheme in which numerous signals of different frequencies

are combined to form a single signal for transmission on the medium.

OFDM works by breaking one high-speed data stream into a number of lower-

speed data streams, which are then transmitted in parallel. Each lower speed

stream is used to modulate a subcarrier. Essentially, this creates a multi-carrier

transmission by dividing a wide frequency band or channel into a number of

narrower frequency bands or sub-channels. OFDM is also used for other appli-

cations, including powerline networking.

Packet

- A unit of data routed between an origin and a destination in a network.

Passphrase

- Used much like a password, a passphrase simplifies the WEP

encryption process by automatically generating the WEP encryption keys for

Linksys products.

Port

- A pathway into and out of the computer or a network device such as a

switch or router. For example, the serial and parallel ports on a personal com-

puter are external sockets for plugging in communications lines, modems and

printers.

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