Buffalo Technology WBR2-G54S User Manual

Wireless Cable/DSL Router

www.buffalotech.com/wireless

User Manual

125 High Speed Mode*

WBR2-G54S

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 05

Installation / Setup . . . . . . . . . . . . . . . . . . . . . . 11

Antenna Installation. . . . . . . . . . . . . . . . . . . . . . 13

Standard Settings . . . . . . . . . . . . . . . . . . . . . . . 14

AOSS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Advanced Setup . . . . . . . . . . . . . . . . . . . . . . . . 26

Wireless Settings . . . . . . . . . . . . . . . . . . 26

Wireless LAN Security . . . . . . . . . . . . . . 28

LAN Port . . . . . . . . . . . . . . . . . . . . . . . . 32

DHCP Server . . . . . . . . . . . . . . . . . . . . . 33

Wireless MAC Filtering . . . . . . . . . . . . . 36

Wireless Bridge (WDS) . . . . . . . . . . . . . 38

WAN Settings . . . . . . . . . . . . . . . . . . . . . . . 40

WAN Port . . . . . . . . . . . . . . . . . . . . . . . . 40

WAN Network . . . . . . . . . . . . . . . . . . . . . 43

LAN Settings . . . . . . . . . . . . . . . . . . . . . . . . 26

2

Table of Contents

Network Settings. . . . . . . . . . . . . . . . . . . . . 45

Routing Setup . . . . . . . . . . . . . . . . . . . . 45

Address Translation . . . . . . . . . . . . . . . . 47

Packet Filter . . . . . . . . . . . . . . . . . . . . . . 50

Intrusion Detector . . . . . . . . . . . . . . . . . 55

UPnP . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Management . . . . . . . . . . . . . . . . . . . . . . . . 58

System Information . . . . . . . . . . . . . . . . 58

Change Password . . . . . . . . . . . . . . . . . 59

Time Setup . . . . . . . . . . . . . . . . . . . . . . 60

Traffi c Information . . . . . . . . . . . . . . . . . 61

Client Monitor . . . . . . . . . . . . . . . . . . . . 62

Ping Tool . . . . . . . . . . . . . . . . . . . . . . . . 63

Log Information . . . . . . . . . . . . . . . . . . . 64

Syslog Transfer . . . . . . . . . . . . . . . . . . . 65

Save/Restore Settings . . . . . . . . . . . . . . 66

Reboot/Reload Settings . . . . . . . . . . . . . 67

Firmware Updates . . . . . . . . . . . . . . . . . 68

AOSS . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3

Table of Contents

Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . 71

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 76

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

FCC Information . . . . . . . . . . . . . . . . . . . . . . . . 90

Warranty Information. . . . . . . . . . . . . . . . . . . . . 93

Contact Information . . . . . . . . . . . . . . . . . . . . . 94

4

Introduction

AirStation 125 High Speed Mode Wireless Cable/DSL Router (WBR2-G54S)

This manual introduces you to the AirStation Cable/DSL Router, and will help you connect to your
network quickly.

The WBR2-G54S router, is a wireless 4-port router network device that complies with the 2.4GHz
IEEE 802.11g standard specifi cation on wireless LANs. It also supports 125 High Speed Mode
technology. The WBR2-G54S supports enhanced built-in NAT/SPI fi rewall functions and is used as
a multi-functional router/link between wired and wireless LAN computers.

Summary of the AirStation WBR2-G54S features:

• Wi-Fi™ (Wireless Fidelity) certifi ed by the Wi-Fi Alliance as an 802.11b/g device. AirStation will
communicate with other IEEE 802.11b/g/Wi-Fi compliant wireless LAN products.

• Supports 125 High Speed Mode

• Support for Wi-Fi Protected Access™ (WPA), 802.1x, TKIP, AES, and WEP.

• Supports Frame Bursting for enhanced performance.

• DHCP client/server function.

• Auto roaming, supports seamless roaming over multiple channels.

• VPN pass-through, for secure communications.

• Packet Filtering for eliminating unwanted communications.

• SOHO/SMB routing and fi rewall functions provide a safer private networking environment, includ­ing support for MS NetMeeting and MSN-Messenger.

5

Introduction

• Additional SPI Firewall Functions - DMZ, intrusion detection and notifi cation

• Syslog transmits some or all system activities to a central Syslog server.

• Extended range, with optional add-on antennas or WDS (Wireless Distribution System).

• Auto Media Dependent Interface/Crossover (MDI/X) port, allows connection by standard and
crossover CAT5 cables.

• Supports Universal Plug and Play (UPnP).

• Buffalo’s AOSS System for easy, secure wireless client confi guration.

• Enhanced security features:

- SPI Firewall and DMZ zone functions to prevent unknown intruders.

- Intrusion Detector Firewall (NAT) with a pop-up or email alert warning unwanted attacks.

- Dynamic packet fi ltering.

- WPA, 802.1x, TKIP, AES, and WEP.

- VPN (IPSec, PPTP and L2TP) pass-through

- Packet monitoring and fi ltering by MAC address, IP address and port.

- PPPoE support

- WDS support

• Buffalo’s easy web interface confi guration

• Broadband router static and dynamic routing methods between WAN and LAN based on updated
routing tables. An economical way to bridge multiple networks.

6

Introduction

• Optional external antennas for boosting range and signal quality.

• Buffalo’s AOSS System for easy, secure wireless client confi guration.

Home Networking 1

Buffalo AirStation wireless access points enable
sharing broadband by simply connecting the
AirStation to a DSL or Cable modem to:

• Share fi les and printers

• Access and share the Internet

• Share media fi les

SOHO/SMB Networking

With high-speed DSL or Cable connections readily available, many users can work effectively from
a home offi ce, connected securely to a corporate network. Buffalo’s solutions are ideal for home
networks that require secure, high-speed access to the corporate LAN. Tools that play an integral
part in Buffalo’s solutions include VPN connectivity for secure access to corporate resources, which
enable the remote employee to handle information from clients or coworkers as if they were in the
offi ce. Connect the Buffalo AirStation Broadband router AP to a Cable or DSL modem in order to:

•Share broadband access

•Share fi les and printers

•Bridge between multiple networks and multiple computer platforms

•Provide easy and secure access to home or company networks from remote locations

7

Introduction

System Requirements

• Broadband (High-Speed) Internet connection or existing Local area connection

• Any Wi-Fi (wireless) compatible computer with a Web Browser Internet Explorer or Netscape 4.5
or later. (Safari 1.0 is supported with Macintosh OS X.2)

AirStation WBR2-G54S Package Contents

The AirStation WBR2-G54S package consists of the following items.

1. WBR2-G54S Base Station

2. AC adapter and power cable

3. CAT5 LAN cable

4. Utility CD with Manual

5. Quick Setup Guides

6. Warranty Statement

8

The LAN or Wired MAC address is the
default SSID (SSID) of the AirStation.
The LAN MAC address is clearly
labeled on the back of the AirStation.

Product Views

Power - Lit when the device is powered on.

Wireless - Lit when the wireless radio is on. Flashes when

wireless traffi c is present.

WAN - Lit when connection to Cable/DSL modem is present.

Flashes when internet traffi c is present.

Diag - Flashes red when performing diagnostic functions.

AOSS - Flashes when in AOSS mode, solid when AOSS

encryption has been set.

Ethernet - 1, 2, 3, or 4 lit when ethernet clients are connected.
Flashes when ethernet traffi c is present.

Introduction

9

Introduction

About the AirStation CD

The AirStation does not require any software to be installed on your computer for confi guration.
The AirStation CD contains client drivers for Buffalo Wireless Adapters (i.e. Notebook Adapter and
Desktop PCI Adapter) and the AirStation documentation.

Prior to copying or installing any software, please read the Software License Agreement “license.
txt”, located in the root folder of the CD. By installing, copying or using the AirStation software, you
are consenting to the terms of this agreement. If you do not agree to all of the terms of the Software
License Agreement, do not download, copy or install the AirStation software.

It is the policy of Buffalo Technology to improve products as new technology, components, software
and fi rmware become available.

Please consult the AirStation wireless website (http://www.buffalotech.com/wireless) to download
and install the latest fi rmware for your product.

10

Installation / Setup

Follow these simple steps to connect the AirStation to your Broadband Internet connection allowing
you to combine and share wired and wireless computers and printers with the high-speed internet
connection.

1. Power down the Cable or DSL modem and
the computer which will be used to confi gure the
AirStation router.

2. Plug the Cable or DSL’s LAN Ethernet cable into
the AirStation’s WAN port. Initially, you may need
to unplug this cable from your computer, hub or
other router.

3. Plug the provided Ethernet cable into a LAN
port on the AirStation and plug the other end into

your computer Ethernet adapter’s (NIC) port. If
you plan to initially confi gure the AirStation via a
wireless connection, (not recommended), you may
skip this step.

4. Power on your cable or DSL modem, wait one full minute, Power on the AirStation router, wait
another full minute and then power on the computer which will be used to confi gure the AirSta­tion. If the red DIAG light on the AirStation is lit or fl ashing after several minutes of being pow­ered on, please consult Buffalo Technical Support.

11

Installation / Setup

Introduction

Confi guring the AirStation using a standard web browser requires basic wireless confi guration
knowledge. Setup includes manual wireless confi guration and basic administrative management.

Setup Preparation

Make note of the AirStation’s wired MAC address (found on the back of the WBR2-G54S). It is also
recommended you record any other broadband ISP information such as global IP address, subnet
mask address, default gateway address, DNS server address and PPPoE parameters.

Setup Overview

Buffalo recommends using a wired connection, meaning your computer is physically connected to
the AirStation with a CAT5 straight cable plugged into one of the four LAN ports This type of setup
will eliminate possible setup problems due to any issues with the wireless adapter on the computer
being used to confi gure the AirStation.

A Web browser version 4.5 or later can be used to confi gure the AirStation.

12

Antenna Installation

The WBR2-G54S has two internal antennas. One has a
vertical orientation while the other has a horizontal orienta­tion. This setup is ideal because it allows for proper antenna
polarization with both desktop and notebook style wireless
adapter antennas.

However, it may be necessary to increase your range further
by installing an external, higher-gain antenna. External
antennas come in all shapes and sizes. Antennas also
come with different connectors. The WHR2-G54 has an ‘MC
Connector’ on it. Thus, the antenna must also have an MC
connector.

To install the antenna, slide the antenna connector door on
the back of the WBR2-G54S to the right. This will expose the
MC Connector. Attaching the antenna is simple, just insert
the antenna’s MC Connector into the WBR2-G54S’s MC
Connector and fi rmly push it in until it snaps into place. Once
snapped, the antenna’s connector will swivel with ease. It is
important not to push the antenna connector in at an angle.

To remove the antenna, pull the antenna connector out. It is
important not to pull the antenna connector out at an angle.

13

Standard Settings

Advanced settings for security, fi ltering and other features will be explained in later sections.

Open the Setup Screen

• Connect the WBR2-G54S according to the wiring instructions in Section 2.

• The WBR2-G54S has a default LAN IP address of 192.168.11.1 and Subnet Mask of

- A window will open prompting you to enter a User ID and Password.

Enter “root” as the User ID and leave the password fi eld blank.

■ Note: These are the factory default settings

Initial

Settings

Login

255.255.255.0.

■ Note: The computer used to confi gure
the AirStation should be set to obtain an
IP address automatically using a DHCP
server. The Quick Setup Guide enclosed
with the product contains detailed instruc­tions on how to confi gure your computer
for initial confi guration.

On the computer used to confi gure the
AirStation, launch a Web Browser 4.5 or
later.

- Enter 192.168.11.1 into the URL fi eld.

14

Standard Settings

Initial

Settings

Screen

Initial DSL

button

Screen

Enter ISP information

• Click the appropriate button to select the type
of broadband access. (Users more experienced
in networking may choose to select the Ad­vanced button and skip to Section 4.)

• For supplementary tools, use the tabs along
the top of the screen.

DSL Button

Select the appropriate connection method.

Automatic IP Assignment by ISP

- The DHCP server of the ISP assigns an IP ad­dress automatically.

15

Standard Settings

Manual DSL

IP Settings

Screen

DSL PPPoE

Settings

Screen

Enter IP Address Manually

- Enter the IP Address given by the ISP.

- Use ‘Enter IP Address Manually’ if the ISP
requires use of a static IP address.

PPPoE Connection

- Enter the PPPoE information provided by the
ISP.

16

Standard Settings

Initial CATV

Settings

Screen

Manual IP

Address

Settings

CATV (Cable) Button

Select the appropriate connection method.

Automatic IP Assignment by ISP

- Select ‘Automatic IP Assignment by ISP’ if
your ISP’s DHCP server assigns an IP address
automatically.

Enter IP Address Manually

- Select ‘Enter IP Address Manually’ if the ISP
requires use of a static IP address.

17

Standard Settings

Auto IP/

Manual DNS

Settings

Line

Test Tab

The IP Address is Acquired
Au to mat i cal ly but DNS Server Address
is Entered Manually

-

Select ‘IP address is acquired automatically
but DNS server address is entered manually’ if
the ISP’s DHCP server supplies an IP address
but not DNS server addresses.

Line Test

Tests the connection to the Internet.

18

Standard Settings

Security Tab

Security

The Security Tab offers three Simple Security
Settings. Follow the in struc tions in each screen
to enter Encryption Keys, MAC Address Filter­ing and the degree of fi rewall security for the
AirStation.

19

Standard Settings

Encryption Setup.

- Select the desired encryption
scheme from the choices. After
it has been selected, press the
‘Next’ button. You will then be
prompted to enter the appropriate
key(s) for that method of encryp­tion.

Simple MAC Address Filter.

- Select ‘Enable’ to use MAC fi lter­ing. See ‘Page 36’ for more infor­mation on MAC Address Filtering.

20

Simple Security Setup.

- See ‘Page 55’ for more information
on Intrusion Detector.

Standard Settings

Ap pli ca tion

Ta b

Applications

The Application Tab offers setup for special ap­plications such as games, MS NetMeeting and
MSN Messenger. Then follow the on-screen
menus to confi gure the AirStation for the applica­tion.

21

Standard Settings

Internet Gaming Setup

-Enter the ports(refer to Game
documentation) the game runs
on, and enter the Local IP Ad­dress of the PC that plays the
game.

NetMeeting Setup

-Enter the IP Address of the PC
that will use Netmeeting.

MSN Messenger Setup

-Refer to the on-screen help for
information about Messenger.

Although your AirStation will function fi ne using only the Standard Settings, you may wish to
explore more advanced options. The Advanced Settings section explains each function in the
Advanced settings area.

Click the Top tab and click the Advanced button to enter the Advanced settings area.

22

AOSS

AOSS (AirStation One-Touch Secure System) is a simple, one-touch setup for connecting wireless
clients to an access point while setting up the most secure possible connection. Users no longer
need to worry about choosing the proper security protocols, IP addresses, or SSID's. The
intelligence of AOSS determines the most optimal connection and confi gures itself in seconds.

■ NOTE: AOSS automatically creates a secure connection between your AOSS Access Point and
client. You must have a Buffalo AOSS enabled wireless client device to use the AOSS features of
your AOSS Access Point/Router.

◗ Confi gure your WBR2-G54S’ internet con-

nection by referring to the instructions in
the WBR2-G54S’ Quick Setup Guide.

◗ Once the WBR2-G54S has been confi g-

ured, follow the directions to install your
wireless client device and its drivers if
necessary. Certain wireless client adapt­ers require client software to confi gure
them. If your device has a Client Man­ager, then install it as well.

■ NOTE: If the wireless client adapter is
installed on a PC, then the AOSS client
manager will need to be installed as well. If your wireless client adapter is a standalone device that
does not require a PC, then just power up the device.

Standalone Devices: Ethernet Converters and Access Point Bridges
Client Manager Devices: CardBus, USB, and PCI Adapters.

Standalone

AOSS Device

23

Client Manager

Device

Client Manager

Software

AOSS

◗ Now that the WBR2-G54S and wireless client adapter

are installed, you can use AOSS to confi gure them.

◗ To begin the confi guration, press the AOSS button on

the back of the WBR2-G54S for 3-5 seconds. The AOSS
light will begin to fl ash when the AOSS mode has been
enabled. You can stop pressing the button at this point.

■ NOTE: AOSS mode will stay active for a period of
two minutes. This is the time-slot required to initiate the

wireless client adapter. The AOSS LED will stop fl ashing
when AOSS mode has stopped or timed out.

◗ Refer to your wireless client adapter's AOSS

supplement to initiate the wireless client adapter's AOSS
mode.

◗ It typically takes 10-15 seconds for the AOSS light to

stop fl ashing after the AOSS button has been pressed
on the wireless client adapter. Once confi guration is
complete, the AOSS light will remain steady. Please
refer to your wireless client adapter's supplement for the
remainder of the setup.

24

AOSS

Additional AOSS Information:

◗ Only one AOSS wireless client adapter can be confi gured to the AOSS router at a time. Thus,

the button will need to be repressed for each additional AOSS wireless client adapter that will be
connected.

◗ It is not necessary to AOSS client devices that have already been confi gured via AOSS, unless

signifi cant changes have been made to the wireless network.

◗ Do not attempt to confi gure two separate AOSS networks at the same time, as it may cause

undesired confi gurations.

◗ If an undesired client has connected via AOSS, it can be disconnected from within the WBR2-

G54S’ advanced confi guration menus.

25

Advanced Settings

LAN Settings

Wireless

Settings

ters for the SSID (case sensitive). By default the SSID is the LAN Mac address of the AirStation.

■ Note: Roaming - When multiple AirStations have an identical SSID, WEP key (if WEP is used),
(and channel in WDS mode) , client computers may Roam between the AirStations.

Wireless Channel - Select the channel used for wireless communication. There are 11 overlap­ping channels. Channels 1, 6 and 11 are non-overlapping. The ‘Auto-Channel’ option is recom­mended, as it constantly assesses the best available channel for the AirStation to operate on.

26

Set up LAN connections.

Wireless Settings

Wireless Function - Enable or

disable wireless LAN computer
communication.

SSID - Allows administrator to
alter the SSID of the AirStation.
To communicate with a specifi c
AP only, the AP’s SSID must
be entered in the client comput­er. The client computer looks
for the specifi c AP (or SSID) for
wireless communication. Use
up to 32 al pha nu mer ic charac-

Advanced Settings

If there are multiple APs in close proximity using the same channel, there may be interference. In this
case, change to a non-overlapping channel.

Privacy Separator - Enable or disable communication between wireless clients. If you choose to use this
feature, every wireless client that is associated to the AirStation will not be able to communicate with any
other wireless clients.

■ Note: If this function is used, wired clients can still communicate with wireless clients.

BSS (Basic Service Set) Basic Rate Set - The transmission data rates offered by the AirStation. It is
recommended to use the ‘Default’ selection to accomidate 802.11 and 802.11b rate sets. It is NOT recom­mended to use the ‘All’ selection, as some devices may not understand all of the rate sets offered by the
AirStation.

Frame Bursting - This function increases 802.11g communication throughput by transferring packets more
effi ciently. The following conditions affect this function:

• The wireless LAN client adapter must support Frame Bursting (and it must be enabled). If the wireless
LAN client adapter does not support Frame Bursting, or Frame Bursting is not enabled, then it will
operate at non-Frame Bursting speeds.

125 High Speed Mode - This function further increases 802.11g communication. Rate sets up to 125
Mbps are offered to clients.The following conditions affect this function:

• The wireless LAN client adapter must support 125 High Speed Mode (and it must be enabled). If the
wireless LAN client adapter does not support 125 High Speed Mode, or it is not enabled, then it will
operate at regular 802.11g speeds.

It is recommended to leave 125 High Speed Mode enabled as it can only help throughput, not hurt it.

27

Advanced Settings

802.11g Protection - This enables protection mechanisms for when 802.11b clients join the net­work. It enables CTS (Clear-to-Send)

DTIM Period - An access point transmits beacon signals to nearby clients at a preset interval. This
parameter sets the beacon transmission interval time (1-255 seconds). Se lec tion of a larger num­ber may conserve energy for the client computer (when client power management is enabled), but
may delay wireless communication. The default value of 1 is recommended.

Wireless Output Power - Confi gure output power of the AirStation. Decrease wireless output
power to shrink the wireless communication range. The default setting of 100% is recommended
unless decreased range is desired

Wireless

Security
Settings

Wireless LAN Security

Broadcast SSID - Enable or Dis-

able the SSID (SSID) from being
broadcasted. If denied, the AirStation
will not be found unless the specifi c
AirStation’s SSID is entered in the
client computer manually.

Data Encryption - Disable to have no
encryption of the wireless data. This
will make accessing the AirStation
and the network very easy. It is im-

28

Advanced Settings

portant to note, that without encryption it is easy for strangers to connect to your network, especially
if the AirStation is broadcasting its SSID.

Select the type of data encryption:

• Disabled - Disable data encryption.

- WEP - Uses WEP encryption. Encryption key should be entered.

- TKIP - Uses TKIP (Temporal Key Integrity Protocol) for data encryption.

The encryption key is renewed every “Re-key interval” when “TKIP” is selected.

WEP - When the WEP (Wired Equivalent Protection) encryption standard is implemented into a
wireless network, a WEP key is used between the client and access point to successfully encrypt,
transmit and decrypt data. For this reason, the same WEP key must be used for communication
between the client and the AirStation.

An access point and client may both carry multiple WEP keys. It is necessary for not only the WEP
keys to match, but also the WEP key’s order. If a wireless client cannot support multiple WEP keys,
the AirStations must be confi gured to transmit key number 1 for a connection to take place.

Examples of WEP key:

64-bit ASCII: 5 digits of alphanumeric characters, “ab34Y”

128-bit ASCII: 13 digits of alphanumeric characters, “123456abcdef7”

■ Note: ASCII WEP keys are case sensitive.

64-bit HEX: 10 digits, using characters 0-9 and a-f, “00234ABCDE”

29

Advanced Settings

128-bit HEX: 26 digits, using characters 0-9 and a-f, “20123456789abcdeabcdeabcde”

TKIP - TKIP (Temporal Key Integrity Protocol) is a WEP expanded encryption technique. TKIP has
greatly improved WEP’s weaknesses by rotating secret keys between every packet. TKIP uses
WPA-PSK (pre-Shared Key).

Characteristics:

- The Initialization Vector is expanded from 24-bits to 48-bits.

- The Initialization Vector is randomized.

- Uses a different RC4 key for every packet.

AES - AES further improves TKIP by using AES (Advanced Encryption Standard) encryption
method. Due to its hardware co-processor, AES uses the toughest encryption without sacrifi cing
throughput like WEP and TKIP.

TKIP & AES require an 8 to 63 character passphrase in ASCII or 64 digits hexadecimal key.

Example 1: [ airstation -WPA-PSK ]

Example 2: [0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef]

WPA Group Rekey Interval - When TKIP is selected, the encryption key is renewed at this inter­val. This interval is in seconds; the range of acceptable values is 0-3600.

If 0 is entered, the key is never renewed.

■ Note: The lower the rekey interval, the more often a rekey occurs. Setting a low rekey interval
may affect performance negatively.

30

Advanced Settings

TKIP Method - This is the method that the AirStation uses to handle TKIP encryption. The two
methods are Hardware and Software. Hardware uses the AirStation’s processors TKIP extension
to handle the TKIP encryption. This results in decent performance but the limitation of only 12
simulataneous TKIP clients. The software method is a software method written by Buffalo which al­lows for considerably more TKIP clients but does not utilize the processor’s direct extensions. This
results in more of a throughput loss when TKIP is used.

IEEE802.1x/EAP authentication (WPA) - Confi gure Authentication and WPA Settings.

Disable - Do not use any RADIUS Server based authentication.

Enable - Authorized clients access this AirStation via a RADIUS Server.

Use 802.1x/EAP to authorize every wireless client who wants to access the AirStation by using

802.1x/EAP and a RADIUS Server. The RADIUS server provides login information for every user
establishing a more secure system than TKIP or other fi xed encryption key methods. This also
reduces the amount of necessary key maintenance.

A RADIUS server is necessary for IEEE802.1x/EAP authentication. Enter [RADIUS Server], {RA­DIUS Port] and [RADIUS Key] information.

RADIUS authentication

RADIUS Server - Enter RADIUS server IP address.
RADIUS Port - Enter port number for authentication.
RADIUS Key - Encryption key between RADIUS Sever and the AirStation. Enter the same key as

registered in the server. Use a 1 to 256 character alphanumeric code.

31

Advanced Settings

LAN Port

Settings

the IP address is changed, then the DHCP scope must be changed to match.

DHCP Server Function - Allows administrator to enable/disable the DHCP server function for the
AirStation LAN side. Select Use to enable and Do not use to disable the function. Once Use is
selected, the assigned IP address range can be specifi ed. Enter the starting LAN IP address and
total number of computers the DHCP server can accomidate.

■ Note: If there is another DHCP server on the network, one either must be disabled or the IP
range must be changed to avoid confl icts derived from overlapping DHCP scopes.

32

LAN Port

Set the LAN side Ethernet
settings.

LAN Side IP Address - Allows
ad min is tra tor to specify a static
IP and Subnet Mask for the
LAN side of the AirStation.

■ Note: If the AirStation’s IP
address is changed, the con­fi guring computer’s IP must be
changed to the same range to
continue confi guration. If the
LAN IP is changed, restart the
AirStation. (Section 4.4.10). If

Advanced Settings

DHCP Server

Settings

server is turned off, all client PC’s must have unique, static IP addresses and valid network settings
manually entered. Check with your LAN administrator for static IP information.

Assigned IP address (Range As sign ment) - Sets the beginning address and range of addresses
to be assigned by the AirStation’s DHCP server function. Select up to 253 consecutive addresses
(nodes). The IPs to be excluded from the range spec i fi ca tion should be entered in the specifi ed
fi eld.

33

DHCP Server

Allows a more advanced con­fi guration of the DHCP server
functions.

DHCP Server Function - Al­lows ad min is tra tor to enable/
disable the DHCP server func­tion for the AirStation LAN side.
Select Use to enable or Do not
use to disable this function.
If the DHCP service is enabled,
wireless and wired clients
may receive IP addresses and
other network information from
the AirStation. If the DHCP

Advanced Settings

Lease duration - Specifi es the time in hours (1-999) an assigned IP address is valid. If the client
computer does not request a renewal of IP address before the lease period expires, the AirStation
can issue the IP to another client computer.

Default Gateway - Allows administrator to use the Default Gateway address (the AirStation’s IP
address), assign a specifi c Gateway address, or block clients from Gateway notifi cation.

DNS server - Allows administrator to use the default DNS address (the AirStation’s IP address),
assign specifi c DNS addresses, or block clients from DNS address notifi cation.

WINS server - Allows administrator to use a WINS address. Select auto assignment of the IP ad­dress, enter a specifi c WINS IP address, or block clients from the WINS address notifi cation.

Domain name - Allows administrator to use an assigned domain name, assign a specifi c domain
name, or block clients from domain name no ti fi ca tion. Domain names will be sent to LAN comput­ers when an IP address is assigned. Enter a maximum of 64 al pha nu mer ic characters.

34

Advanced Settings

Manual IP

and MAC

Address

Assignment

Settings

Manual IP and MAC Address
As sign ment - Allows administra-

tor to add additional leased IP
addresses tied to a specifi c MAC
address. When a specifi c MAC
address connects to the AP, the
IP address specifi ed will be given
to that client.

Display/Delete lease informa­tion - List of IP addresses, MAC
addresses, lease periods and
status is displayed.

35

Advanced Settings

Wireless MAC

Filter

Wireless MAC Filter

Wireless PC’s Connection

- Select Enable to restrict
wireless connections to the
registered adapters in the list.
Select Disable to disable MAC
address fi ltering.

Press the Preset button
to enter the MAC Address
registration menus. This is
where MAC Addresses can be
assigned and deleted.

36

Advanced Settings

Register for

Allowable PC’s

MAC Address

Registration for MAC Ad­dresses - MAC access

restriction set up in LAN. Input
the MAC addresses that are
allowed to communicate with
the AirStation.

MAC address list - Displays a
table list of all MAC addresses
allowed to communicate with
the AirStation.

37

Advanced Settings

Wireless

Bridge (WDS)

Settings

■ Note: All AirStations must support WDS and be on the same channel. Do not use ‘Auto-Channel’
when using WDS. For roaming support, use the same SSID on all devices.

Add a WDS Partnet: Allows administrator to input the wireless MAC address of AirStations for
Bridge (WDS) communication. The wireless MAC address is found in the Management section =>
System Information, labeled Wireless MAC Address.

38

Wireless Bridge (WDS)

The Wireless Distribution
System supports peer-to-peer
AP communication.

Wireless Bridge (WDS) Func­tion - Select Enable to allow

Bridge (WDS) mode between
AirStations or Disable to
block communication between
AirStations.

Wireless Bridge (WDS) dedi­cated mode - Select Enable to

restrict wireless computer com­munication with the AirStation.
In dedicated mode wireless
clients CANNOT connect to
WDS AirStations.

Advanced Settings

Wireless

Bridge (WDS)

Settings

Repeat this process on every other AirStation used in Bridge (WDS) mode.

39

To enable WDS, set the Wire­less Bridge (WDS) function to
Enable.

Enter the Wireless MAC
address of the AirStation to
communicate with in the form
of two characters separated by
a colon and click Add.

MAC Address Ex:
00:00:00:00:00:00

Up to six AirStation MAC ad­dresses may be registered.

Click Apply under Wireless
Bridge (WDS) settings when
the wireless Mac addresses
AirStation are entered.

Advanced Settings

WAN port

Setup

WAN Settings

WAN Port

Wired WAN Performance

- Select port speed and type of
duplex connecting to the WAN
port. If unknown, select Auto
negotiation.

MAC Address of WAN - Set
the AirStation MAC address to
be used for WAN com mu ni c­a tion. Some ISP’s may require
you to set the MAC Address
of WAN to be the same MAC
address of your cable or DSL
modem.

ministrator to select DHCP server, PPPoE, or manual setting for the WAN port of the AirStation.

Auto IP assignment from DHCP server - acquire the IP address automatically from the DHCP server.

Use PPPoE client - If selected, the in for ma tion listed below must be entered.

Manual setting - Enter the appropriate IP address and subnet mask.

40

WAN IP Address - Allows ad-

Advanced Settings

PPPoE Setting (for enabling PPPoE Client function) - Allows administrator to use PPPoE as
specifi ed by the ISP.

The following parameters should be entered for PPPoE Settings:

Name of Connection - Enter the name of your connection.

User Name - Enter the user name (up to 64 alphanumeric characters) for PPPoE au tho ri za tion.

Password - Enter the password provided by your ISP (up to 64 alphanumeric characters). Reenter

the password in the Confi rmation box.

Service Name - Enter the PPPoE service name (up to 64 alphanumeric characters). If your ISP
doesn’t require a service name, then leave it blank.

Connection Type - Select from:

- Continuous Connection - connects im me di ate ly after setting and never
disconnects.

- Connect on Demand - Reconnects when the disconnect time elapses.

- Manual - Disables Automatic Con nec tion. Connects to the Internet using the connect button on
the initial settings page.

The Enter New Connection button will not appear until Use PPPoE Client is set.

Disconnection Time - Specify the number of minutes (0-1440) before automatic dis con nect is
performed. If “0” is entered, the dis con nect function is disabled. If Con tin u ous Connection is
selected, the timer is disabled.

41

Advanced Settings

PPPoE

Settings

Screen

once per minute. If there is no reply within six minutes, the client disconnects. Set to Disable if
frequent disconnection occurs.

Activation - Enable/disable registered connection settings. If disabled, the connection is not per­mitted.

42

Authorization - Authorization
method for accessing the ISP’s
PPPoE server. If unknown,
select Auto authorization.

MTU (Maximum Transmit
Unit) Size - Maximum Transmit

Unit (578-1492) when using
PPPoE.

MRU (Maximum Receive
Unit) Size - Maximum Receive

Unit (578-1492) when using
PPPoE.

Keep Alive - Enables the
PPPoE client to send a Link
Control Protocol (LCP) echo
request to the PPPoE server

Advanced Settings

Network of

WAN

as sign ment from DHCP Server is selected in the WAN Port section, a gateway IP is assigned
automatically, provided the DHCP server is set to provide one.

DNS Server Address - Enter the primary and secondary DNS address(es) of the server to be used
by the AirStation for DNS resolution.

If DNS was set to Do not use, leave blank. If Auto IP as sign ment from DHCP Server was
selected, DNS addresses are assigned automatically, provided the DHCP server is set to provide
them.

43

WAN Network

WAN side (Internet) param­eters. These settings are gen­erally not required if your ISP
is providing DHCP services. In
this case these fi elds can be
left blank if desired.

Host Name - Enter the host
name as desired.

Default Gateway - A default
gateway IP should be assigned
to the AirStation. If unknown,
leave blank. If Auto IP

Advanced Settings

Remote Management Port Number - Set a specifi c port number when remote setup of the AirSta­tion is planned. Using port 80 allows the AirStation to be accessed from the internet by connecting
to http://xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is your WAN IP address). You will need to confi g­ure the NAT (Adress Translation Settings) to forward PORT 80 back to the AirStation.

Block Ping from WAN - Allows a PING test from the WAN/Internet. Select Disable or Enable.

44

Advanced Settings

Routing

Setup

information.

Click Add Route to Add a Routing Table Entry

•Destination address - Network IP address and subnet mask.

• Gateway - Address through which the packet passes before it reaches the des ti na tion address.

45

Network Settings

Routing Setup

RIP transmission to WAN - Allows RIP

transmission or None (no RIP) to WAN

RIP reception from WAN - Allows RIP
reception or None (no RIP) from WAN

RIP transmission to LAN - Allows RIP
transmission or None (no RIP) to LAN

RIP reception from LAN - Allows RIP
reception or None (no RIP) from LAN

RIP transmission to WAN - Allows RIP
transmission or None (no RIP) to WAN

Display current information - Allows
administrator to view and delete routing

Advanced Settings

Add Routing

Table Entry

• Metric - Number of routers
(1-15) to be passed before the
packet reaches its destination.

46

Advanced Settings

Address

Translation

Setup

• Static IP address translation -When the WAN requests connection to the LAN, the WAN IP

address of the AirStation is translated into the IP address of the LAN computer.

Log Output - Set ‘Log Output’ to log discarded packets. Otherwise, a dropped packed is not
logged.

IPSec Pass-Through - Enables the AirStation’s ability to pass IPSec VPN data.

47

Address Translation

Address Translation - Select
Enable or Disable. Address
Translation must be enabled
for client computers to con­nect to the Internet. Selecting
Enable enables the following
functions:

• IP Masquerade - When the
LAN computer connects to the
WAN side, the IP address of
LAN computer is dynamically
translated to become the WAN
IP address of the AirStation.
Multiple LAN computers can
share one WAN IP address to
access the Internet.

Advanced Settings

IP Address of DMZ - Allows administrator to set the DMZ (De-Militarized Zone) address. Incoming
packets containing no recognizable destination port information will be re di rect ed to the DMZ’s IP
address.

Display/Delete NAT Table - Allows ad min is tra tor to delete NAT tables.

Add NAT Table

Address

Translation

Setup

dress used by the WAN computer to connect to the local computer.
AirStation’s IP Address of WAN should be used unless you have multiple WAN side IP
addresses.

Group - Specify a group (up to 16 characters)
that the NAT rule belongs. Groups are simply
used to visually organize the NAT table for the
administrator. It is recommended to name the
group after the protocol that is being setup
(e.g. Group Name FTP when setting up ad­dress translation for FTP)
Click New Group to create new group or
select an existing group to add a NAT rule to it.

WAN Side IP Address - Select AirStation’s
WAN Side IP Address or Manual IP Ad­dress. For Manual setting, enter the IP ad-

48

Advanced Settings

Some network applications (online games or streaming software) require adding Address Transla­tion tables; consult the software’s documentation for port information).

Protocol (WAN):

• All - Selects all IP protocols.

• ICMP - Network Diagnostic Protocol (1).

• Manual - Specify the protocol number (0-65535).

• TCP/UDP - Enter port number for TCP or UDP protocols. If both TCP and UDP are required,
then separate entries are required.

LAN IP Address - Select Manual IP Address and enter the destination IP address of the LAN
computer; or select AirStation’s LAN IP Address.

Protocol (LAN) - Enter the destination port number. If left blank, the packets are transferred to
the same port number as the source port number. Typically the destination port should be left the
same as the source port.

• Click Add to NAT table. This will add the information to the NAT table. Once you have gone

through this process for every desired translation, you will need to press the Apply button on the
top of the screen to start the translating.

49

Advanced Settings

Packet

Filter

Setup

• Prohibit setup via wireless bridge access point - Prohibits a personal computer connected to
another AirStation in a wireless bridge.

• Prohibit NBT and Microsoft-DS routing - Prevent unexpected external access via Microsoft
network sharing. This prohibits computers on the internet from accessing shared resources on
Windows machines. It is recommended to leave this fi lter activated.

• Reject the IDENT request - The AirStation sends reject packets if it receives an IDENT request.

50

Packet Filter

Log Output - Select Output to

activate the packet fi lter log.

Packet Filter Information
Basic Rule - Click add/delete

basic rules. Place a check
mark next to the basic rule to
enable:

• Prohibit setup from wire-
less LAN - Prohibits adminis­tration from a wireless com­puter.

• Prohibit setup from wired
LAN - Prohibits administration
from a wired computer.

Advanced Settings

Basic Filter

Setting

Use this fi lter when the commu­nication speed goes down using
a network application like E-mail,
FTP and WEB.

* If IDENT requests are for­warded to a LAN side client by
address translation setting (DMZ
or TCP port :113 ), this basic rule
is ignored.

51

Advanced Settings

IP Filter

setting

• 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 - Stop the packet and do not route it.

• Rejected - Return the rejected packet to the point of origin.

• Accepted - Pass the packet through.

• 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 selects packet from LAN is Ignored or Rejected, the ad min is tra tor will

52

type of packets allowed to pass
between the WAN and LAN.
The maximum number of rules
is 32.

• Operation - Packets from
WAN (or LAN), select ignored,
rejected, or accepted. Select
the operation to be performed
on the packets.
Packets from:

IP Filter Settings - Limits the

Advanced Settings

no longer have access to the AirStation confi guration screens. This function prohibits 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 - Mark and select a specifi c protocol. Select from all protocols, ICMP, arbitrary protocol
number and TCP/UDP protocol number.

• All - Selects all IP protocols.

• 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.

Add MAC

Filter

setting

53

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.

Advanced Settings

■ 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.

54

Advanced Settings

Intrusion
Detector

Setup

• 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

55

Intrusion Detector

The Intrusion Detector watch guards
and prevents unauthorized access
from the WAN (Internet)
This function also records information
on unauthorized access attempts

Intrusion Detector - Select Do not
use, Use or Use (Apply Packet fi lter
setting for Intrusion Detector set­ting).

IP Spoofi ng - Check Block to prevent

IP spoofi ng.

Threshold Value - Enter the number
(1-999) of suspect packets before the
notifi cation occurs.

Notify by email

• Sender email server address - Enter the SMTP Server address.

• Receiving email server au tho ri za tion - Enter the POP3 Server address, User name and Password.
This is only required if your SMTP server requires POP verifi cation before it allows email to be sent.
Consult your ISP or mail server support for more information.

• Send test - Click Send to test no ti fi ca tion; this will also save and commit the entries.

Pop-up notifi cation - 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 notifi ed. The LAN computer with this IP address
must have Buffalo’s Client Manager software installed and running for the verifi cation to occur. If the
machine is off the verifi cation will not be received, and the AirStation will NOT resend information.

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

56

Advanced Settings

UPnP

Setting

UPnP

Select Enable to enable
UPnP (Universal Plug and
Play). When a computer with
UPnP support connects to the
AirStation, that computer auto­matically receives confi guration
information from the AirStation.

57

Advanced Settings

System

Information

with other access points. This is the best place to determine the wireless MAC address.

• LAN

- Displays the AirStation LAN settings

• WAN

- Displays the AirStation WAN settings

• Default Gateway

- Displays the default gateway settings

58

Management

System Information

System information of the
AirStation is obtained here.

• Model name

model and fi rmware version

• AirStation Name

AirStation host name

• DHCP Server function

Displays On or Off

• Wireless

wireless LAN settings such

as wireless MAC address
and wireless fi rmware. The
wireless MAC address is
required for setting up WDS

- Displays

- Displays the

- Displays

-

Advanced Settings

• WAN side IP address auto acquisition - This is the method to acquire the 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.

Name and

Password

Setup

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.
This utility is seldomly used,
thus, the AirStation name value
has little value.

Administrator name - “root”,
cannot be changed

Administrator password ­Allows the administrator to enter
an administrator password to
restrict access to the setting
screens.

59

Advanced Settings

• New Password - Enter new password. Enter up to eight alphanumeric characters (case sensi­tive)

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

Time Setup

Screen

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.

60

Advanced Settings

Packet Traf-

fi c Informa-

tion

Packet Traffi c
Information

Displays number of packets
sent and received for:

Wired WAN

Wired LAN

Wireless LAN

Click Refresh to start update
the transfer packet log.

61

Advanced Settings

Client

Monitor

Screen

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
indicated 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.

62

Advanced Settings

PING Test

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.

63

Advanced Settings

Log

Information

Screen

Log Information

Display log info level - Select
Error and/or Notify to spec­ify 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.

64

Advanced Settings

Syslog

Transmitting

Screen

65

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:
work running a Syslog service
is required for this.

A server on the net-

Advanced Settings

Save/

Restore

Settings

Screen

66

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:
saved by a newer fi rmware than
the current one, the AirStation
can’t restore the settings.

If the setting fi le is

Advanced Settings

Initialization/

Reboot

67

Reboot/Reload Defaults

Click Restart to reboot
AirStation

Click Restore to reset the
AirStation to default factory
settings.

■ Note:
factory settings will erase
all settings and passwords
previously entered. The
AirStation will return to the
condition it was in when fi rst
purchased.

Resetting to default

Advanced Settings

Firmware

Update

Firmware Update

Firmware fi le name

- Click Browse to browse

to the path and fi lename
for 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 rm­wares free of charge.

http://www.buffalotech.
com/wireless

68

Advanced Settings

AOSS

AOSS

Client Table - Displays the

clients connected via AOSS. The
‘Disconnect’ button disconnects
the client from the AOSS router
by using MAC Address fi ltering.
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’ but­ton. A separate table exists for
connected Ethernet Convertors.
The ‘Refresh’ button updates the
tables.

69

Advanced Settings

AOSS

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.

70

Manually specify the encryp­tion type - This forces AOSS to

use a specifi ed type of encryp­tion. It is recommended to not
change this setting. If the setting
is changed then every client that
connects must have support for
that encryption type.

AOSS Function - Click Enable
to allow the AirStation to use
AOSS function. Click Disable
to shut off the AOSS system.
Clicking Disable will disable the

AOSS button on the AirStation.

Specifi cations

Additional Information

For more information, please consult:

• The AirStation website at:

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

WBR2-G54S BASE STATION SPECIFICATIONS

Physical Specifi cations

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

71

Specifi cations

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 com mu ni ca tion equipment.

Networking Characteristics

Compatibility

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

• Wi-Fi (Wireless Fidelity) certifi ed 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)

72

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 13.5 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 Offi ce Environment

160 m (525 ft.)

270 m (885 ft.)

Specifi cations

73

Specifi cations

400 m (1300 ft.)

550 m (1750 ft.)

Semi-Open Offi ce Environment

50 m (165 ft.)

70 m (230 ft.)

90 m (300 ft.)

115 m (375 ft.)

Closed Offi ce

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.

74

Specifi cations

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

• In Open Offi ce environments, clients can “see” each other, i.e. there are no physical obstruc­tions between them.

• In Semi-open Offi ce environments, work space is separated by room dividers; client cards are
at desktop level.

• In Closed Offi ce environments, workspace is separated by fl oor-to-ceiling brick walls.

■ Note:
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

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

75

Troubleshooting

Common Problems:

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

• Confi guration mismatch, client cannot connect to the AirStation.

• Absence or confl ict with the Client Driver.

• Confl ict 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 communica­tion is active.

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

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 [e-mail].

76

Troubleshooting

Table B.1.1 DIAG LED Activity Table

DIAG LED Display Time Description/Action

Continuous Red Starting RAM Error Red fl ash, 2 times Starting Flash ROM

Error

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

Red fl ash, 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.

77

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.

78

Troubleshooting

Troubleshooting WDS (Step-by-Step Instructions)

The most common issue with WDS installations is using the wrong MAC address. The proper MAC Ad­dress for the access points is the ‘Wireless MAC Address’. The best place to document this is under the
‘System Information’ section of the confi guration 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 it is not part of the 802.11b or 802.11g standard.

Restrictions:

Please verify that the following conditions are met (if just one condition is not satisfi ed, then WDS can­not 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.Good Practices:proper location.

79

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 fi rst access point in the wireless bridge (this should be the DHCP server enabled ac­cess 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 need to be identical as well). Press the ‘Set’

button if any changes are made.

(If the IP address was changed, then reconnecting to the access point for confi guration will require ac-

cessing it via its new IP address in a web browser (e.g. http://NEW_IP_ADDRESS).

80

Troubleshooting

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

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 ‘Set’ button if any settings on this page have been set.

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 ad-

dress (including the :’s). 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 fi rst access point. 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 need to be identical as well).

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

14. Make sure that the ‘LAN side IP address’ ‘IP address’ setting is different then the fi rst 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 fi rst access 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 ‘Do not use’ or to ‘Disabled’.
Press the ‘Set’ button when fi nished.

81

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 fi rst access point (which was recorded on Step 8) into the

fi eld 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 ‘Set’ button.

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

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

82

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’ fi eld 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-

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

83

Glossary

10BaseT 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.

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 network­ing framework that includes an Access Point.

Bus Mastering: A system in which the speci­fi ed 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 Wiring: A UTP cable that has its

transmit and receive pair crossed to allow com­munications 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 identifi es the intended recipient
station.

DHCP (Dynamic Host Confi guration Pro­tocol): Based on BOOTP, it uses a pool of IP

addresses, which it assigns to each device con­nected 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 ad­dresses

84

Glossary

Driver: Software that interfaces a computer
with a specifi c 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 identifi cation used in the ESS LAN
confi guration.

Ethernet: The most widely used architecture
for Local Area Networks (LANs). It is a shared­media 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
fi les and printers.

Firmware: Programming inserted into pro­grammable read-only memory, thus becoming a
permanent part of a computing device.

Frame: A fi xed 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 com­puters and other devices to form a LAN.

IEEE (Institute of Electrical and Electronics
Engineers): The professional organization

which promotes development of electronics
technology.

85

Glossary

IP (Internet Protocol) Address: A unique 32­binary-digit number that identifi es 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 com­puters 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 measure­ment of millions of bits per second.

MDI/X (Media Dependent Interface/Cross­over): 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 inter­net standard that enables a LAN to use one set
of IP addresses for internal traffi c and a second
set for external traffi c.

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 net­work traffi c based on its originating address or
its type.

86

Glossary

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 in­stalled (“plugged in”), can immediately be
used (“played”), as opposed to hardware that
requires manual confi guration.

PoE (Power over Ethernet): A mechanism
to send DC power to a device using a CAT5
Ethernet cable.

PPPoE (Point-to-Point Protocol over Ether­net): A specifi cation for connecting users on an

Ethernet line to the Internet through a common
broadband medium.

Protocol: A standard way of exchanging infor-

mation between computers.

RADIUS (Remote Authentication Dial In User
Service): A server that issues authentication key to

clients.

RAM (Random Access Memory): Non-permanent
memory.

Repeater Hub: A device that collects, strengthens
and 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.

87

Glossary

Script: A macro or batch fi le containing instruc­tions and used by a computer to perform a task.

Server: Any computer that makes fi les or
peripheral devices available to users of the
network and has a resident Network OS.

SMTP (Simple Mail Transfer Protocol): The
protocol used to defi ne and deliver electronic
mail (E-mail) from one location to another.

SNMP (Simple Network Management Proto­col: 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 ex­tra protection from external interfering signals.

Subnet Mask: An eight-byte address divided
into 4 parts separated by periods.

TCP/IP (Transmission Control Protocol/In­ternet 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 com­munication 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 communi­cation hierarchy.

UTP (Unshielded Twisted Pair) cable: Two or
more unshielded wires twisted together to form
a cable.

88

WAN (Wide Area Network): A networking sys­tem covering a wide geographical area.

WEP (Wired Equivalent Privacy): An encryp­tion 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 specifi cations.

WLAN (Wireless LAN): A LAN topology using
wireless devices.

VPN (Virtual Private Network): A security
method to connect remote LAN users to a cor­porate LAN system.

Glossary

89

FCC / CE Information

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 con­nected.

• 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.

90

FCC / CE Information

IMPORTANT NOTE:

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 connected.

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

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 Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.

91

FCC / CE Information

FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body. This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
BUFFALO declared that WBR2-G54S is limited in CH1~11 by specified firmware controlled in USA.

Safety

This equipment is designed with the utmost care for the safety of those who install and use it.
However, special attention must be paid to the dangers of electric shock and static electricity when
working with electrical equipment. All guidelines of this manual and of the computer manufacturer
must therefore be allowed at all times to ensure the safe use of the equipment.

EU Countries intended for use

The ETSI version of this device is intended for home and office use in Austria, Belgium, Denmark,
Finland, France (with Frequency channel restrictions), Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Norway, The Netherlands, Portugal, Spain, Sweden, Switzerland and United
Kingdom.
The ETSI version of this device is also authorized for use in EFTA member states Iceland,

Liechtenstein, Norway and Switzerland.

EU Countries Not intended for use

None.

Potential restrictive use

France: Only channels 10,11,12, and 13.

92

Warranty Information

Buffalo Technology (Melco Inc.) products comes with a two-year limited warranty from the date of
purchase. Buffalo Technology (Melco Inc.) warrants to the original purchaser the product; good operat­ing condition for the warranty period. This warranty does not include non-Buffalo Technology (Melco
Inc.) installed components. If the Buffalo product malfunctions during the warranty period, Buffalo
Technology/(Melco Inc.) will, replace the unit, provided the unit has not been subjected to misuse,
abuse, or non-Buffalo Technology/(Melco Inc.) authorized alteration, modifi cations or repair.

All expressed and implied warranties for the Buffalo Technology (Melco Inc) product line including,
but not limited to, the warranties of merchantability and fi tness of a particular purpose are limited in
duration to the above period.

Under no circumstances shall Buffalo Technology/(Melco Inc.) be liable in any way to the user for
damages, including any lost profi ts, lost savings or other incidental or consequential damages arising
out of the use of, or inability to use the Buffalo products.

In no event shall Buffalo Technology/(Melco Inc.) liability exceed the price paid for the product from
direct, indirect, special, incidental, or consequential damages resulting from the use of the product, its
accompanying software, or its documentation. Buffalo Technology/(Melco Inc.) does not offer refunds
for any product.

@ 2003 Buffalo Technology (Melco, Inc.)

93

Contact Information

ADDRESS

Buffalo Technology (USA), Inc.

4030 West Braker Lane, Suite 120

Austin, TX 78759-5319

GENERAL INQUIRIES

Monday through Friday

8:30am-5:30pm CST

Direct: 512-794-8533 | Toll-free: 800-456-9799 | Fax: [phone] | Email: sales@buffalotech.
com

TECHNICAL SUPPORT

North American Technical Support by phone is available 24 hours a day, 7 days a week. (USA and
Canada).

Toll-free: [phone] | Email: [e-mail]

* When operating in High-Speed Mode, this Wi-Fi device achieves an actual throughput of up to 34.1 Mbps, which is the

equivalent throughput of a system following 802.11g protocol and operating at a signaling rate of 125 Mbps.

94

4030 W. Braker Ln. Suite 120

Austin, Texas 78759

Tel: [phone]

Fax: [phone]

Technical Support is available 24 hours a day, 7 days a week

(USA / Canada)

Toll-Free: 866-752-6210

email: [e-mail]

©2004, Buffalo Technology (USA), Inc.

95