BUFFALO 09101457-0 Wireless LAN Router User Manual WZR HP Manual indd

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FTP and WEB.

* If IDENT requests are for-

warded to a LAN side client by

address translation setting (DMZ

or TCP port :113 ), this basic rule

is ignored.

IP Filter Settings - Up to 32 rules may be made to limit the type of packets allowed to pass

between the WAN and LAN. Each rule may specify that packets meeting speciﬁ c criteria (source

or destination IP Address, Protocol, etc.) from either the WAN or the LAN are ignored, rejected, or

accepted. You may choose that packets from the:

• WAN side (packets coming from the WAN side will be ﬁ ltered)

• LAN side (packets from the LAN side will be ﬁ ltered)

are:

• Ignored (stops the packet and does not route it)

Basic Filter

Setting

FTP and WEB.

* If IDENT requests are for-

warded to a LAN side client by

address translation setting (DMZ

or TCP port :113 ), this basic rule

is ignored.

Basic Filter

Setting

Advanced Settings

• Rejected (returns the rejected

packet to the point of origin)

• Accepted (passes the packet

through)

with each rule. You may also

choose:

• Destination IP Address -

The IP address to be ﬁ ltered.

• Source IP Address - The IP

address designated for ﬁ ltering.

If all IP addresses must be

ﬁ ltered, leave this box blank.

Warning: If administrator makes a rule that all packets from LAN are Ignored or Rejected, they

will no longer have access to the AirStation conﬁ guration screens. This rule prohibits further setup

from a wireless or wired computer. The AirStation can be returned to the factory default settings

by holding down the INIT button on the back of the unit for ﬁ ve seconds or until the red DIAG light

becomes solid.

Protocol - You may also choose to ﬁ lter all protocols, ICMP, arbitrary protocol number, or TCP/

UDP protocol number.

• All - Selects all IP protocols.

IP Filter

setting

IP Filter

setting

Advanced Settings

• ICMP - Network Diagnostic Protocol (1).

• Manual - Enter protocol number (0-65535).

• TCP/UDP Destination Port - Select TCP or UDP, then enter port number.

Priority - Specify the priority an item. The smaller the number, the higher the priority.

MAC Filter - Click Enter MAC ﬁ lter to enter MAC address.

Source MAC address -The MAC address of the source of the packets that will be ﬁ ltered may be

set. Click Add rule when complete.

■ Note: If conﬁ guring from a wireless computer, add your MAC address to the list of au tho rized

wireless LAN PCs. The MAC address must be in two-digit groups separated by colons.

Example: 00:40:26:00:11:22

Click Apply when settings are

complete.

Advanced Settings

Add MAC

Filter

setting

Intrusion Detector

The Intrusion Detector guards against unauthorized access from the WAN (Internet). This function

also records information on unauthorized access attempts

Intrusion Detector - Select Disable, Enable, or Enable (Apply Packet ﬁlter setting for Intrusion

Detector setting).

IP Spooﬁng - Check Block to prevent IP spooﬁng.

Threshold Value - Enter the number (1-999) of suspect packets to be received before the notiﬁca-

tion occurs.

Advanced Settings

Notify by email:

Notiﬁ cation email address - Enter

des ti na tion email address.

Sender email address - Enter the

email address that will send the email.

This is the name that will appear as

the sender when the email is read.

This email can be made up (e.g.

DETECTOR@AIRSTATION).

Intrusion

Detector

Setup

Advanced Settings

Sender email server address - Enter the SMTP Server address.

Receiving email server authorization - Enter the POP3 Server address, User name and Password.

This is only required if your SMTP server requires POP veriﬁcation before it allows email to be sent.

Consult your ISP or mail server support for more information.

Send test - Click Send to test notiﬁcation; this will also save and commit the entries.

Pop-up notiﬁcation - Pop-up window alert of unwanted activity. Client Manager must be installed and

running on a client machine to use this feature.

Destination IP address - Enter the IP address to be notiﬁed. The LAN computer with this IP address-

must have Buffalo’s Client Manager software installed and running for the veriﬁcation to occur. If the

machine is off the veriﬁcation will not be received, and the AirStation will NOT resend information.

Intrusion Detector information - displays log activity detected by the Intrusion Detector service.

UPnP

Select Enable to enable

UPnP (Universal Plug and

Play). When a computer with

UPnP support connects to the

AirStation, that computer auto-

matically receives conﬁ guration

information from the AirStation.

Advanced Settings

UPnP

Setting

Management -

• System Information - System

information of the AirStation is obtained

here.

• Model name - Displays model and

ﬁ rmware version.

• AirStation Name - Displays AirStation

host name.

• DHCP Server function - Displays

whether DHCP is On or Off.

• Wireless - Displays such wireless

LAN settings as wireless MAC address

and wireless ﬁ rmware. The wireless

MAC address is required for setting up

WDS with other access points. This is

the best place to determine the wireless

MAC address. If 125* Mbps AfterBurner

mode is enabled, then the [AfterBurner]

color will be red or grey. When it is red, 125* Mbps AfterBurner is running. When it is grey, 125* Mbps

AfterBurner is enabled but not running due to a client being connected at 54 Mbps or another access point

is running on the same channel.

• LAN - Displays the AirStation LAN settings

• WAN - Displays the AirStation WAN settings

Advanced Settings

System

Information

System

Information

• Default Gateway - Displays the default gateway settings

• WAN side IP address auto acquisition - This acquires an IP address from the WAN (Internet)

side DHCP server. Press Release to release current DHCP WAN information. Press Renew to

obtain WAN information from the DHCP server. NOTE: If a manual IP is assigned to the WAN

port, this feature is not displayed.

Admin Name and

Password

• AirStation name - When using

multiple AirStations, select a

unique name to make it easier to

identify each AirStation through

the AirStation Manager utility.

• Administrator name - “root”;

cannot be changed.

• Administrator password -

Allows the administrator to enter

an administrator password to

restrict access to the setting

screens.

• New Password - Enter new

password. Enter up to eight

alphanumeric characters (case sensitive).

Advanced Settings

Name and

Password

Setup

alphanumeric characters (case sensitive).

Name and

Password

Setup

• Conﬁ rm Password - Reenter the new password for conﬁ rmation.

Time setup

Time setup - Enter the current

date and time, and click Set.

NTP - Network Time Protocol.

Select Use or Do not use.

■ Note: If NTP is used, time is

set au to mat i cal ly.

NTP server name - Enter the

NTP server name.

Update Time - Enter the time

interval (in hours) for the time

check frequency.

Time Zone - Select local time

zone.

Click Apply.

Advanced Settings

Time Setup

Screen

Packet Trafﬁ c

Information

Displays number of packets

sent and received for:

Wired WAN

Wired LAN

Wireless LAN

Click Refresh to update the

transfer packet log.

Advanced Settings

Packet Traf-

ﬁ c Informa-

tion

Client Monitor

Displays the wired and wireless

clients (computers) that are

accessing the AirStation.

• MAC address - Shows the

client’s MAC address.

• IP Address and Medium -

Shows the IP address that is

assigned to the client from the

DHCP server. The network

medium is shown as ‘wireless’

or ‘wired’ depending on how

the client is accessing the

AirStation.

■ Note: The Client Monitor

only shows clients that have

received an IP address from

the AirStation’s DHCP server.

Clients that have static IP

addresses will not appear in

the Client Monitor.

Advanced Settings

Client

Monitor

Screen

Client

Monitor

Screen

PING Test

Performs a PING test from the

AirStation to a LAN or WAN

address.

Enter the target IP address and

click OK (e.g. 192.168.11.2

- OR- www.buffalotech.com)

If the test results in an error,

then verify you correctly

inputted the address and

check your connections.

Advanced Settings

PING Test

Log Information

Display log info level - Select

Error and/or Notify to spec-

ify the types of reports to be

logged by the AirStation.

Display log info - Select the

speciﬁ c reports to be logged.

Log information - Displays

recorded logs.

Advanced Settings

Log

Information

Screen

Syslog Transfer

Select Use or Do not use

to enable or disable the

AirStation’s ability to transmit

information to a Syslog server.

• Syslog Server - Enter the IP

address of the Syslog server.

• Log Information Level

- Select Error and/or Notice to

specify the types of reports to

be sent to the Syslog server.

• Log Information - Select the

speciﬁ c reports to be sent to

the Syslog server.

■ Note:

A server on the net-

work running a Syslog service

is required for this.

Advanced Settings

Syslog

Transmitting

Screen

Save/Restore Settings

Save current settings - Click

Save to open the ﬁ le saving

dialog and save the current

AirStation settings to a ﬁ le.

Restored saved settings

- Restores settings from a ﬁ le

that has been saved. Click

Choose ﬁ le to select the saved

ﬁ le and click Restore.

■ Note:

If the setting ﬁ le is

saved by a newer ﬁ rmware than

the current one, the AirStation

can’t restore the settings.

Advanced Settings

Save/

Restore

Settings

Screen

Save/

Restore

Settings

Screen

Reboot/Reload Defaults

Click Restart to reboot

AirStation.

Click Restore to reset the

AirStation to default factory

settings.

■ Note:

Resetting to default

factory settings will erase

all settings and passwords

previously entered. The

AirStation will return to the

condition it was in when ﬁ rst

purchased.

Advanced Settings

Initialization/

Reboot

Firmware Update

Firmware ﬁ le name

- Click Browse to browse

to the path and ﬁ lename

of the new ﬁ rmware. Click

Firmware Update to load

ﬁ rmware to the AirStation.

■ Note: Firmware update

does not erase current

user settings.

Please visit the Buffalo

Technology Web Page to

download the latest ﬁ rm-

wares free of charge.

http://www.buffalotech.

com/wireless

Advanced Settings

Firmware

Update

Firmware

Update

AOSS

Client Table - Displays the

clients connected via AOSS. The

‘Disconnect’ button disconnects

the client from the AOSS router

by using MAC Address ﬁltering.

Once disconnected, the client will

still appear in the client list but

will appear as disconnected. The

client can then be re-enabled by

pressing the ‘Re-Enable’ but-

ton. A separate table exists for

connected Ethernet Convertors.

The ‘Refresh’ button updates the

tables.

Advanced Settings

AOSS

Manually specify the encryp-

tion type - This forces AOSS to

use a speciﬁ ed type of encryp-

tion. We recommend that you

not change this setting. If the

setting is changed, then every

client that connects must sup-

port the speciﬁ ed encryption

type.

AOSS Function - Click Enable

to allow the AirStation to use

AOSS. Click Disable to disable

the AOSS system. button on

the AirStation.

Advanced Settings

Start AOSS Process- Click AOSS icon to begin the AOSS sequence. This starts the AOSS process

just like pressing the AOSS button.

Stop AOSS Process- Click AOSS icon to stop AOSS operation. Stopping the AOSS function will turn

off AOSS and return the router to non-AOSS function.

AOSS

Additional Information

For more information, please consult:

• The AirStation website at:

http://www.buffalotech.com - for frequently asked questions (FAQ’s) and Software Updates.

WZR-HP-G54 BASE STATION SPECIFICATIONS

Physical Speciﬁcations

Dimensions W3 x H6.75 x D6.1in. (76 x 171 x 155mm)

Weight 1 lb. (620g)

Temperature & Humidity

Operation 0˚ to 40˚ C

Maximum humidity 80%

Transit/Storage 0˚ to 40˚ C maximum humidity 80% (no condensation)

Power Characteristics

Transmit Mode 1.1A (Nominal),

Power Supply 3.3 V

Speciﬁcations

Regulatory Information

Wireless communication is often subject to local radio regulations. Although AirStation wireless

networking products have been designed for operation in the license-free 2.4 GHz band, local radio

regulations may impose limitations on the use of wireless communication equipment.

Networking Characteristics

Compatibility

• IEEE802.11g/b Standard for Wireless LANs (125* High-Speed Mode also Available)

• Wi-Fi (Wireless Fidelity) certiﬁed by the Wi-Fi Alliance.

Host Operating System

Microsoft Windows® 98SE/ME/NT4.0/2000/XP, Unix, Linux and MacOS

Media Access Protocol

Wired - CSMD/CD (Collision Detection)

Wireless - CSMD/CA (Collision Avoidance) with Acknowledgment (ACK)

Radio Characteristics

RF Frequency Band 2.4 GHz (2400-2483 MHz)

11 selectable channels (3 non-overlapping)

Speciﬁcations

Modulation Technique Direct Sequence Spread Spectrum

• ODFM for High Transmit Rate

• DQPSK for Standard Transmit Rate

• DBPSK for Low Transmit Rate

Spreading 11-chip Barker Sequence

Nominal Output Power 25.0 dBm

Transmit Rate / Range

High Speed 54 Mbps (125* Mbps in 125* High-Speed Mode)

Medium Speed 36 Mbps (96 Mbps in 125* High-Speed Mode)

Standard Speed 2 Mbps

Low Speed 1 Mbps

Open Ofﬁce Environment

160 m (525 ft.)

270 m (885 ft.)

Speciﬁcations

400 m (1300 ft.)

550 m (1750 ft.)

Semi-Open Ofﬁce Environment

50 m (165 ft.)

70 m (230 ft.)

90 m (300 ft.)

115 m (375 ft.)

Closed Ofﬁce

25 m (80 ft.)

35 m (115 ft.)

40 m (130 ft.)

50 m (165 ft.)

Receiver Sensitivity -83 dBm -87 dBm -91 dBm -94 dBm (depends on data rate)

Delay Spread (at FER of <1%) 65 ns 225 ns 400 ns 500 ns (depends on data rate)

• The range of wireless devices can be affected by metal surfaces, solid high-density materials

and obstacles in the signal path.

Speciﬁcations

Table “Radio Characteristics” lists the typical ranges when used indoors:

• In Open Ofﬁce environments, clients can “see” each other, i.e. there are no physical obstruc-

tions between them.

• In Semi-open Ofﬁce environments, work space is separated by room dividers; client cards are

at desktop level.

• In Closed Ofﬁce environments, workspace is separated by ﬂoor-to-ceiling brick walls.

■ Note:

The range values listed in Table “Radio Characteristics” are typical distances as

measured at Buffalo Technology AirStation laboratories. These values are provided for your

guidance but may vary according to the actual radio conditions at the location where the AirStation

product is installed.

AirStation IEEE 802.11 Channel Sets

The range of the wireless signal is related to the Transmit Rate of the wireless communication.

Communications at a lower Transmit range may travel longer distances.

Center Channel ID FCC

1 2412 2 2417 3 2422 4 2427 5 2432 6 2437 7 2442 8 2447 9 2452 10 2457 11 2462

11 default channel

Speciﬁcations

Common Problems:

• Out of range, client cannot connect to the AirStation.

• Conﬁguration mismatch, client cannot connect to the AirStation.

• Absence or conﬂict with the Client Driver.

• Conﬂict of another device with the AirStation hardware.

B.1.1 LED Activity B

Monitoring LED activity helps identify problems.

• Power LED should be GREEN,

• Wireless LED should be GREEN if the line is active. If is it blinking GREEN, wireless communica-

tion is active.

• Ethernet LED should be GREEN (100Mbps) or AMBER (10Mbps) while the communication is ac-

tive.

DIAG LED Activity

Unplug the power for three seconds. Plug the power back in to monitor the DIAG LEDs during start-up.

If any symptoms match section B.1.1, call the Buffalo Tech Support line 24 hours a day, 7 days a week

at 866-752-6210 or email info@buffalotech.com.

Troubleshooting

Table B.1.1 DIAG LED Activity Table

DIAG LED Display Time Description/Action

Continuous Red Starting RAM Error Red ﬂash, 2 times Starting Flash ROM

Error

Red ﬂash, 3 times Starting A problem on the wired LAN side

Red ﬂash, 4 times Starting A problem on the wireless LAN side

B. 1.2 LEDs Work But Client PC Cannot Connect to Network

If the LEDs indicate that the network is working properly (Power LED is on, Transmit/Receive LED

blinks), check the TCP/IP settings of the network.

Changing Client TCP/IP Settings in Windows

Consult the LAN Administrator for TCP/IP settings.

To add or change the TCP/IP Settings:

1. On the Windows task bar click Start.

2. Select Settings, then Control Panel.

3. Double-click on the Network icon to view the Network Properties.

4. From the list of installed components, verify the TCP/IP => wireless LAN adapter protocol is

installed.

Troubleshooting

• If the wireless adapter protocol is not yet installed, click the Add button and select the TCP/IP

protocol from the list. Refer to Windows Help for more information.

• If the wireless adapter protocol is installed, select the protocol and click the Properties button.

Verify the parameters match the settings provided by your LAN Administrator. Make changes

if necessary, and click OK.

5. When or if prompted, restart your computer.

B. 1.3 Other Problems

Please refer to www.buffalotech.com for further reference materials.

Troubleshooting

Troubleshooting WDS (Step-by-Step Instructions)

The most common issue with WDS installations is using the wrong MAC address. The proper MAC Ad-

dress for the access points is the ‘Wireless MAC Address’. The best place to document this is under the

‘System Information’ section of the conﬁguration web page. For proper setup, please continue reading

this document.

Problem:

Communication problems with WDS (wireless bridging/repeating).

Cause:

WDS is a very complex bridging system, and is not part of the 802.11b or 802.11g standards.

Restrictions:

Please verify that the following conditions are met (if just one condition is not satisﬁed, then WDS can-

not be used on the wireless network):

1. All wireless access points in the wireless bridge need to be from the same vendor (e.g. all Buffalo

access points).

(At time of publication, the Apple Airport Extreme WILL work in WDS with Buffalo G54 access points.)

2. No single access point can communicate with more then six other access points in the wireless

bridge.

Troubleshooting

The following is a list of good practices with WDS:

1. Start the wireless bridge system with only two access points and then add more access points.

2. Setup all access points in the wireless bridge in close proximity before they are deployed to their

proper location.

3. Only one access point in the wireless bridge should be serving DHCP and routing services unless a

routed wired network exists.

Proper Setup:

Please follow the following steps to properly setup WDS.

1. It is recommended that all access points in the bridge are reset to their factory default settings. This

is done by holding the INIT button on the rear of the access point down for 5-10 seconds.

2. Login to the ﬁrst access point in the wireless bridge (this should be the DHCP server enabled ac-

cess point if there is not already a routed wired network).

3. Click on the ‘Advanced’ button.

4. The wireless settings page will appear. Select the proper settings for the wireless network. Record

all settings on a piece of paper. All settings except for the SSID need to be identical amongst all

access points in the bridge. If roaming is desired, then make sure the SSID settings are identical

as well. Press the ‘Apply’ button after any changes are made. If the IP address was changed, then

reconnecting to the access point for conﬁguration will require accessing it via its new IP address in a

web browser (e.g. http://NEW_IP_ADDRESS).

5. Click on the ‘LAN port’ link on the left.

Troubleshooting

6. Check that the ‘LAN side IP address’ values are correct for your network, or leave them as default.

Record the ‘LAN side IP address’. Press the ‘Apply’ button if any settings on this page have been

changed.

7. Click on the ‘Management’ link on the left.

8. The System Information page will appear. In the Wireless section of the table record the MAC

address, including the colons (i.e. “00:00:0A:1B:2C:DF”). Please make sure the MAC address is

recorded from the Wireless section and not the other sections.

9. Logout of the access point by clicking on the ‘Logout’ link on the left. Close the browser window.

10. Login to the second access point in the wireless bridge.

11. Click on the ‘Advanced’ button.

12. The wireless settings page will appear. Select the proper settings for the wireless network. Refer to

the settings recorded from the ﬁrst access point. All settings except for the SSID need to be identical

for all access points in the bridge. If roaming is desired, then make sure the SSID settings are identi-

cal as well.

13. Click on the ‘LAN port’ link on the left.

14. Make sure that the ‘IP address’ for the ‘LAN side IP address’ setting is different from that of the ﬁrst

access point. The IP addresses cannot be the same, but they should be on the same network. It is

recommended that the IP address of the second access point is one higher then that of the ﬁrst ac-

cess point. Thus, if access point one’s address is 1.1.1.1, then access point two’s address should be

1.1.1.2. If there is a ‘DHCP server function’ setting on this page, then make sure to set it to ‘Disabled’.

Press the ‘Apply’ button when ﬁnished.

Troubleshooting

15. Click on the ‘Wireless bridge (WDS)’ link on the left.

16. Enable the WDS function and press the ‘Set’ button.

17. Enter the Wireless MAC Address of the ﬁrst access point (which was recorded on Step 8) into the

ﬁeld that say ‘MAC Address of AirStation(Wireless)’ (include the :’s). Press the ‘Add’ button.

18. The Wireless MAC address inputted on the step above will appear in the ‘Connected AirStation’

table. Please check that the checkbox under enable is checked, and then press the ‘Enable marked

item’ button.

19. At the top of the page, press the ‘Apply’ button.

20. Once the router has rebooted, click on the ‘Management’ tab on the left.

21. The System Information page will appear. In the Wireless section of the table record the MAC ad-

dress (including the :’s). Please make sure the MAC address is recorded from the Wireless section

and not the other sections.

22. Logout of the access point by clicking on the ‘Logout’ link on the left. Close the browser window.

23. Login to access point one again.

24. Click on the ‘Advanced’ button.

25. Click on the ‘Wireless bridge (WDS)’ link on the left.

26. Enable the WDS function and press the ‘Apply’ button.

27. Enter the Wireless MAC Address of the ﬁrst access point (which was recorded on Step 21) into the

ﬁeld that say ‘MAC Address of AirStation(Wireless)’ (include the :’s). Press the ‘Add’ button.

Troubleshooting

29. At the top of the page, press the ‘Apply’ button.

30. Once the router has rebooted, click on the ‘Management’ tab on the left.

31. Click on the ‘PING test’ link on the left.

32. In the ‘Destination’ ﬁeld enter the IP address of the second access point and press the ‘OK’ button.

a. If the ‘Result’ section of the table reports information like, “1st: 64 bytes from IP_ADDRESS” then

the WDS bridge is effectively working.

b. If the ‘Result’ section of the table reports “Destination Host Unreachable”, then an error has oc-

curred during the setup.

WDS is a complicated bridging system with a lot of variables. If there are still problems with WDS con-

ﬁguration on the network, then please call our 24/7 technical support line at 1-866-752-6210.

Troubleshooting

10BaseT or 100BaseTx: 802.3 based Ether-

net network that uses UTP (Unshielded twisted

pair) cable and a star topology. 10 is 10 Mbps

and 100 is 100 Mbps.

802.1x: The standard for wireless LAN authenti-

cation used between an AP and a client. 802.1x

with EAP will initiate key handling.

Ad-Hoc Network: The wireless network based

on a peer-to-peer communications session.

Also referred to as AdHoc.

Bandwidth: The transmission capacity of a

computer or a communication channel, stated in

Megabits per second (Mbps).

BSS (Basic Service Set): An 802.11 network-

ing framework that includes an Access Point.

Bus Mastering: A system in which the speci-

ﬁed Input/Output device (e.g. NIC Card) can

perform tasks without the intervention of the

CPU.

Client: A PC or workstation on a network.

Cross-Over Cable: A UTP cable that has its

transmit and receive pair crossed to allow com-

munications between two devices.

DCE (Data Communications Equipment):

Hardware used for communication with a Data

Terminal Equipment (DTE) device.

Default Gateway: The IP Address of either the

nearest router or server for the LAN.

Default Parameter: Parameter set by the

manufacturer.

Destination Address: The address portion of

a packet that identiﬁes the intended recipient

station.

DHCP (Dynamic Host Conﬁguration Pro-

tocol): Based on BOOTP, it uses a pool of IP

addresses, which it assigns to each device con-

nected to it, and retrieves the address when the

device becomes dormant for a period of time.

DNS (Domain Name System): System used

to map readable machine names into IP ad-

dresses

Glossary

Driver: Software that interfaces a computer

with a speciﬁc hardware device.

DSSS (Direct Sequence Spread Spectrum):

Method of spreading a wireless signal into wide

frequency bandwidth.

DTE (Data Terminal Equipment): Device that

con10BaseT or 100BaseTx: 802.3 based

Ethernet network that uses UTP (Unshielded

twisted pair) cable and a star topology. 10 is 10

Mbps and 100 is 100 Mbps.

Dynamic IP Address: An IP address that is

automatically assigned to a client station in a

TCP/IP network, typically by a DHCP server.

ESS (Extended Service Set): A set of two

or more BSSs that form a single sub-network.

SSID is user identiﬁcation used in the ESS LAN

conﬁguration.

Ethernet: The most widely used architecture

for Local Area Networks (LANs). It is a shared-

media network architecture. The IEEE 802.3

standard details its functionality.

Ethernet cable: A wire similar to telephone

cable that carries signals between Ethernet

devices.

File and Print Sharing: A Microsoft application

that allows computers on a network to share

ﬁles and printers.

Firmware: Programming inserted into program-

mable read-only memory, thus becoming a

permanent part of a computing device.

Frame: A ﬁxed block of data, transmitted as a

single entity. Also referred to as packet.

Full-Duplex: To transmit on the same channel

in both directions simultaneously.

Half-duplex: To transmit on the same channel

in both directions, one direction at a time.

Hub: A device which allows connection of com-

puters and other devices to form a LAN.

IEEE (Institute of Electrical and Electronics

Engineers): The professional organization

which promotes development of electronics

technology.

Glossary

IP (Internet Protocol) Address: A unique 32-

binary-digit number that identiﬁes each sender

or receiver of information sent in packets.

Infrastructure: A wireless network or other

small network in which the wireless network

devices are made a part of the network through

the Access Point.

ISP (Internet Service Provider): A company

that provides access to the Internet and other

related services.

IV (Initialization Vector): The header section

of an encrypted message packet.

LAN (Local Area Network): A group of com-

puters and peripheral devices connected to

share resources.

LED (Light Emitting Diode): The lights on

a hardware device representing the activity

through the ports.

MAC (Medium Access Control) Address:

A unique number that distinguishes network

cards.

Mbps (Mega Bits Per Second): A measure-

ment of millions of bits per second.

MDI/X (Media Dependent Interface/Cross-

over): Port on a network hub or switch that

crosses the incoming transmit lines with the

outgoing receive lines.

MHz (MegaHertz): One million cycles per

second.

NAT (Network Address Translation): An inter-

net standard that enables a LAN to use one set

of IP addresses for internal trafﬁc and a second

set for external trafﬁc.

NIC (Network Interface Card): An expansion

card connected to a computer so the computer

can be connected to a network.

Packet: A block of data that is transferred as a

single unit, also called a frame or a block.

Packet Filtering: Discarding unwanted net-

work trafﬁc based on its originating address or

its type.

Glossary

mation between computers.

RADIUS (Remote Authentication Dial In User

Service): A server that issues authentication keys

to clients.

RAM (Random Access Memory): Non-permanent

memory.

Repeater Hub: A device that receives, strength-

ens and re-transmits information to all connected

devices, allowing the network to be extended to

accommodate additional workstations.

RC4: The encryption algorithm that is used in WEP.

RJ-45 connector: An 8-pin connector used be-

tween a twisted pair cable and a data transmission

device.

ROM (Read Only Memory): Permanent memory.

Router: Device that can connect individual LANs

and remote sites to a server.

Roaming: The ability to use a wireless device while

moving from one access point to another without

losing the connection.

PCI (Peripheral Component Interconnect): A

bus that is connected directly to the CPU.

PCMCIA (Personal Computer Memory Card

International Association) Card: Remov-

able module that adds features to a portable

computer.

Ping (Packet Internet Groper): An Internet

utility used to determine whether a particular IP

address is online.

Plug and Play: Hardware that, once in-

stalled (“plugged in”), can immediately be

used (“played”), as opposed to hardware that

requires manual conﬁguration.

PoE (Power over Ethernet): A mechanism

to send DC power to a device using a CAT5

Ethernet cable.

PPPoE (Point-to-Point Protocol over Ether-

net): A speciﬁcation for connecting users on an

Ethernet line to the Internet through a common

broadband medium.

Protocol: A standard way of exchanging infor-

Glossary

Script: A macro or batch ﬁle containing instruc-

tions and used by a computer to perform a task.

Server: Any computer that makes ﬁles or

peripheral devices available to users of the

network and has a resident Network OS.

SMTP (Simple Mail Transfer Protocol): The

protocol used to deﬁne and deliver electronic

mail (E-mail) from one location to another.

SNMP (Simple Network Management Proto-

col: An application layer protocol that outlines

the formal structure for communication among

network devices.

Static IP Address: A permanent IP address is

assigned to a node in a TCP/IP network. Also

known as global IP.

STP (Shielded Twisted Pair): Twisted Pair

cable wrapped in a metal sheath to provide ex-

tra protection from external interfering signals.

Subnet Mask: An eight-byte address divided

into 4 parts separated by periods.

TCP/IP (Transmission Control Protocol/In-

ternet Protocol: Protocol used by computers

when communicating across the Internet or

Intranet.

TKIP (Temporal Key Integrity Protocol): An

encryption method replacing WEP. TKIP uses

random IV and frequent key exchanges.

Topology: The shape of a LAN (Local Area

Network) or other communications system.

Twisted Pair: Cable that comprises 2 or more

pair of insulated wires twisted together.

UDP (User Datagram Protocol): A com-

munication method (protocol) that offers a

limited amount of service when messages are

exchanged between computers in a network.

UDP is used as an alternative to TCP/IP.

Uplink: Link to the next level up in a communi-

cation hierarchy.

UTP (Unshielded Twisted Pair) cable: Two or

more unshielded wires twisted together to form

a cable.

Glossary

WAN (Wide Area Network): A networking sys-

tem covering a wide geographical area.

WEP (Wired Equivalent Privacy): An encryp-

tion method based on 64 or 128-bit algorithm.

Web Browser: A software program that allows

viewing of web pages.

Wi-Fi (Wireless Fidelity): An organization that

tests and assures interoperability among WLAN

devices.

Wire Speed: The maximum speed at which a

given packet can be transferred using Ethernet

and Fast Ethernet standard speciﬁcations.

WLAN (Wireless LAN): A LAN topology using

wireless devices.

VPN (Virtual Private Network): A security

method to connect remote LAN users to a cor-

porate LAN system.

Glossary

Disclaimer

* 125 High-Speed Mode: When operating in High-Speed Mode™, this Wi-Fi device achieves

an actual wireless network data transfer rate of up to 34.1Mbps, which is the equivalent data

transfer rate of a system following 802.11g protocol and operating at a signaling rate of 125

Mbps.

Certiﬁcations

This product includes the following certiﬁcation(s):

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions, may

cause harmful interference to radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause harmful interference to radio

or television reception, which can be determined by turning the equipment off and on, the user is

encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is con-

nected.

• Consult the dealer or an experienced radio/TV technician for help.

FCC Caution: To assure continued compliance, (example - use only shielded interface cables when

connecting to computer or peripheral devices). Any changes or modifications not expressly approved

by the party responsible for compliance could void the user’s authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference

received, including interference that may cause undesired operation.

FCC / CE Information

IMPORTANT NOTE: