Buffalo Technology WHR-G54S User Manual

User Manual - AirStation WHR-G54S

Wireless Cable/DSL Smart Router

www.buffalotech.com

v2.0

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Ba si c Se tu p . . . . . . . . . . . . . . . . . . . . . . 6

AOSS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Router Access Point Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

AirStation Conguration Tool . . . . . . . . . . . . . . . . . . . . . . . . 17

Home . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Port Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Windows (MSN) Messenger. . . . . . . . . . . . . . . . . . 20

Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Wireless Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . 23

Internet Connection Reset . . . . . . . . . . . . . . . . . . . . . 24

Advanced Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

WAN Conguration . . . . . . . . . . . . . . . . . . . . . . . . 26

WAN port . . . . . . . . . . . . . . . . . . 26

PPP o E. . . . . . . . . . . . . . . .2 7

LAN Conguration . . . . . . . . . . . . . . . . . . . . . . . 28

LAN Port . . . . . . . . . . . . . . . . . . . . . . . . 28

DHCP Server . . . . . . . . . . . . . . . . . . . . . 29

Manual Assignment of IP Address . . . 30

Network Conguration. . . . . . . . . . . . . . . . . . . . . 31

Route information . . . . . . . . . . . . . . . . . . . . 31

2

Table of Contents

Address Translation . . . . . . . . . . . . . . . . 33

IP Filter . . . . . . . . . . . . . . . . . . . . . . 35

Intrusion Detector . . . . . . . . . . . . . . . . . 38

UPnP . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Wireless Conguration . . . . . . . . . . . . . . . . . . . . . . . . 40

AOSS. . . . . . . . . . . . . . . . . . . . . . . . . 40

802.11g . . . . . . . . . . . . . . . . . . . . . . 41

Basic . . . . . . . . . . . . . . . . . . . . . . 41

Security . . . . . . . . . . . . . . . . . 42

Repeater . . . . . . . . . . . . . . . . . . . . 43

MAC access limit . . . . . . . . . . . . . . . . . . . . . . . . 44

Admin Conguration . . . . . . . . . . . . . . . . . . . 45

Password . . . . . . . . . . . . . . . . . . . 46

Dat e /NT P . . . . . . . . . . . . . . 4 7

Sy slog Transfer . . . . . . . . . . . . . 48

Save/Load Conguration . . . . . . . . . . . . 49

Initialize/Reboot . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Firmware Update. . . . . . . . . . . . . . . . . . . . . . 51

Diagnostic. . . . . . . . . . . . . . . . . . . . . . 52

System Information. . . . . . . . . . . . . . . . . . . . . . 52

Log Info. . . . . . . . . . . . . . . . . . . . . . 53

Packets Info. . . . . . . . . . . . . . . . . . . . . . 54

Client Monitor. . . . . . . . . . . . . . . . . . . . . . 55

3

Table of Contents

Ping Test. . . . . . . . . . . . . . . . . . . . . . 56

Connecting to an existing network. . . . . . . . . . . . . . . . . . . . . . 57

Antenna . . . . . . . . . . . . . . . . . . . . . . 5 8

Specications . . . . . . . . . . . . . . . . . . . . . . . . . 59

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 64

WDS Bridging . . . . . . . . . . . . . . . . . . . . . . . . 67

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

FCC Information . . . . . . . . . . . . . . . . . . . . . . . . 86

Warranty Information. . . . . . . . . . . . . . . . . . . . . 88

Contact Information (USA). . . . . . . . . . . . . . . . . . . . . 89

Contact Information (Europe). . . . . . . . . . . . . . . . . . . . . 90

GPL Information . . . . . . . . . . . . . . . . . . . . . 91

4

Introduction

Congratulations on your purchase! With both a wired LAN router and a 811g wireless access point,

the AirStation WHR-G54S Cable/DSL Router is perfect for linking your wireless devices with a
wired network and each other.

System Requirements

• A high-speed (Broadband) Internet connection or existing local area connection.

• A computer with a network connection (wired or wireless) and a good web browser. The

screenshots in this manual were taken with Firefox, but Netscape and Internet Explorer
are also supported in versions 4.5 or later, and Safari 1.0 and later are supported with
Macintosh OS X 10.2 and later.

AirStation WHR-G54S Package Contents

• WHR-G54S Base Station

• Antenna

• AC adapter and power cable

• CAT5 LAN cable

• Utility CD with Manual

• Quick Setup Guides

• Warranty Statement

5

Basic Setup

Begin by nding a good place to set up your router/access point. Some things to

consider:

• You’ll need to be able to plug your internet connection into it, so it should go within

reach of the LAN cable from your DSL or Cable modem. You’ll also want a power outlet
nearby.

• Keep the access point as central in your work area as possible. Signal strength and

speed fall off with distance.

• Higher is often better. For instance, set it up on the top shelf of a bookcase rather than

the bottom one, if possible.

Screw the antenna into the top of your AirStation. For best

performance, align the antenna to point straight up.

6

Getting Ready

Make note of the AirStation’s wired MAC address. The LAN

or Wired MAC address is the default SSID (wireless network
name) of the AirStation. You can find it on the bottom of the

AirStation.

You may also wish to contact your ISP to ask if other information, such as global IP address,
subnet mask address, default gateway address, DNS server address, or PPPoE parameters,
is necessary to access your internet connection. Write down any necessary information
that your ISP requires for connection.

Buffalo recommends using a wired network connection, where your computer is physically
connected to the AirStation with a CAT5 straight cable plugged into one of the four LAN ports,
to initially set up your router. This type of setup will eliminate possible setup problems with
the wireless adapter on the computer being used to congure the AirStation.

The computer used to congure the AirStation should be set to obtain an IP address automati­cally using a DHCP server. The WHR-G54S has a default LAN IP address of 192.168.11.1
and Subnet Mask of 255.255.255.0.

7

Connecting your AirStation

1. Power down the Cable or DSL modem and the computer which will be used to
con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’s Ethernet adapter (NIC). If you plan to initially congure the
AirStation wirelessly (not recommended), you may skip this step.

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

8

Log in to the Conguration Tool

Launch a web browser on the computer that you’re

going to use to congure the AirStation.

Enter 192.168.11.1 into the URL eld. Naturally, if you
change your AirStation’s IP address, you’ll have to enter
the new address instead.

A window will open, prompting you to enter a User ID

and Password.

Enter root as the User name and leave the password
eld blank.

9

Detecting Your Broadband Connection

Your AirStation’s SmartRouter technology will determine the type of internet

connection you have automatically, and ask you for any needed information. If
your ISP assigns IPs automatically (most cable providers do), their DHCP server
will give your router an IP address. If additional login information is required
to connect to the internet, the wizard will ask for it. Enter any required login

information if asked. Contact your DSL
provider for any missing login information.

If your DSL provider requires that PPPoE
information be entered manually, see page

25.

10

Home

This is the opening page of your
AirStation’s conguration tool. You
can always get to it from within the
conguration screens by clicking on

Home. From here, you can congure
port mapping for your internet games,
turn on UPnP for Windows (MSN)
Messenger, congure your Firewall,
setup Encryption, choose your Wireless
channel, update your AirStation’s

rmware, and reset your Internet
connection’s conguration. As you

explore the conguration tool, you can
usually get context sensitive help by clicking on the Help link at the top right of
the page.

To go to Advanced Settings (page 25), click on the Advanced tab. To get the
system information you need to set up a wireless client that doesn’t support
AOSS, click on the System Info tab. See page 17 for more on Home.

11

AOSS

AOSS

AOSS (AirStation One-Touch Secure System) is a simple system for
conguring your wireless network securely. If your router and your client

device are connected and both support AOSS, then making a secure wireless

connection is very easy.

Push the AOSS button on the top of your router and hold it in for a few
seconds. The AOSS light will begin to ash amber. You now have two minutes
to push the AOSS button on your client device and nish the connection.

If you have a standalone client device,
it will probably have a little red button
labled “AOSS” on it. Push the button!
About 15 seconds later, you’ll have a

secure network connection.

If your client device is a PC card,
CardBus, or PCI adaptor, the AOSS
button will probably be in its Client
Manager Software. Check your client
device’s user manual for instructions
on where to push or click the AOSS
button.

After you’ve pressed both buttons, it will take about 15 seconds for the connection to
complete. When it’s nished, the AOSS light witll glow a solid amber. You now have a
secure network connection!

standalone

client device

PC card Client Manager

Software

12

AOSS Notes

Some things to keep in mind

• Only one AOSS wireless client adapter can be congured with the AOSS router at a

time. The buttons will need to be re-pressed to connect each additional AOSS wireless
client adapter.

• It is not necessary to AOSS client devices that have already been congured via AOSS,

unless signicant changes have been made to the wireless network.

• Do not attempt to congure two separate AOSS networks at the same time, as it may

cause undesired congurations.

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

WHR-G54S’s advanced conguration menus.

13

Router/Access Point Mode

This AirStation supports quickly changing the
product from a wireless router to a conventional

access point.

Put your Airstation into Access Point Mode

by moving the switch on the bottom of your
AirStation from AUTO to BRI. This changes
the default IP address of the AirStation from

192.168.11.1 to 192.168.11.100, and DHCP,
NAT, and the WAN port are disabled.

Access Point Mode might be desirable if you’re adding wireless capability to an existing
network with a router. It is not suitable for most home congurations. If you plan to
use the AirStation as an normal wireless router, make sure that this switch is in the normal
(AUTO) position!

To set up your AirStation as a bridge or repeater, turn to page 43.

14

Manual Client Conguration

If your wireless client doesn’t support
AOSS, you’ll have to congure it
manually. From the Home page, click
on the System Info tab.

15

System Info

This page gives you all the

information you might need to
congure your non-AOSS wireless
client. Probably you’ll just need
the SSID, encryption type, and
password. Consult your wireless
client’s documentation for more
information on conguring it if

necessary.

You can get here from Home by
clicking the System Info tab.

16

AirStation Conguration Tool (Home)

When you rst open your AirStation

Conguration Tool, it will take you to Home
(see also page 11). From Home, you can
congure port mapping for your internet
games, set UPnP for Windows (MSN)

Messenger, congure your rewall, setup
encryption, choose your wireless channel,

update your AirStation’s rmware, and reset
your Internet Connection’s conguration.
Clicking the Advanced tab gives you access
to all of the AirStation’s conguration tools.

You can get back to Home from anywhere
in the management tool by clicking on the
Home button at the top left of the screen.

Let’s begin exploring advanced settings by
clicking on Internet Games (Port Mapping).

17

Internet Games (Port Mapping)

Select any ports that need to be
opened for your internet games to
function correctly. Consult your
game’s documentation for more
information on what ports need to be
congured.

18

Windows (MSN) Messinger/UPnP

Windows (MSN) Messinger requires
UPnP for proper operation. You may
Enable UPnP here. UPnP may need to be
congured on your PC as well.

If you need to congure UPnP on your PC,
the links at the bottom of the page have
instructions for doing so on Windows ME
and XP computers.

Get to this page from Home by clicking on

Windows (MSN) Messinger.

19

Firewall/Intrusion Detector

From this page, choose the level of rewall
security you desire. You may also choose
to have alerts sent to a different PC, if you
like. Click Next when done to restart the

router.

Get to this page from Home by clicking on

Firewall/Intrusion Detector.

20

Wireless Encryption

This page is available from Home by selecting

Wireless Encryption. Here, you can manually

select the type of wireless encryption you’d

like to use. Your AirStation supports three

different encryption schemes; choose the best

one that all your clients support.

Virtually all wireless clients support WEP. It’s

a lot better than nothing.

TKIP is much more secure than WEP, but

slower.

AES is even more secure than TKIP, and the

fastest of all. Highly recommended if all of

your wireless clients support it.

21

Wireless Channel

This page is available from Home by

selecting Wireless channel. With Auto

Channel selected, your AirStation will

choose the best channel available.

Current channel will show the channel

that your AirStation is currently using.

You may also select any channel from

1-11 manually. Channels 1, 6, and

11 are non-overlapping. If multiple

channels are in use in an area, select

a different channel for your AirStation,

as far away from the other channels

being used as possible.

22

Firmware Update

This page is available from Home

by selecting Firmware update. Use

Browse to select your rmware

update le, and then click on Apply.

Firmware update may take several

minutes to complete. Don’t power

down your AirStation until the diag

LED has gone out.

23

Internet Connection (Multisession Reset)

From Home, selecting the Internet

Connection Wizard (Multisession Reset)

tab will begin the Internet Connection

Wizard.

The Internet Connection Wizard will

only function correctly in simple

networks, where your cable or DSL

modem is plugged directly into your

AirStation’s WAN port. If you have

a complicated existing network that

you’re adding the AirStation to, see

page 56.

24

Advanced Settings

Advanced Settings lets you congure

every element of your AirStation. Get

to Advanced Settings from Home by

clicking the Advanced Tab.

Click Help in the top right corner for

more information about any of the

pages in Advanced Settings.

To begin, click on WAN Cong. The

rst page in WAN Cong, WAN Port,

will open.

25

WAN Cong (WAN Port)

Here, you may choose how the AirStation

acquires an IP address. Normally, the

internet connection wizard will set this for

you if you have a cablemodem or DSL. If

you’re not sure what to choose, perform

Easy Setup.

To setup PPPoE manually, click on click

here and turn to page 27.

Also on this page, under Advanced

Settings, you may manually set the Default

Gateway, DNS server, WAN MAC address,

WAN format, and WEB port number.

Click Apply when nished.

26

PPPoE

Many DSL connections require a PPPoE

connection in order to log in to an internet

connection. Normally, the Easy Detection

Wizard will help you congure that, but

you may manually congure one here.

Consult your ISP for more information

on correctly conguring your PPPoE

connection.

To add a new PPPoE connection, click Edit

Connection List. To choose your preferred

connection, click on Edit Preferred

Connection List.

27

LAN Cong (LAN Port)

Default for the LAN side IP address is

192.168.11.1. To add the AirStation to an
existing LAN, specify a unique IPaddress, not
used elsewhere in the network.

The default Subnet Mask is 255.255.255.0.
To connect AirStation to an existing LAN,
specify the Subnet Mask that the LAN uses.

If there’s more than one DHCP server on
a network, disable all but one of them.
To have DHCP assign addresses from a
specic range, enter a begining address by

Assigned IP Address and give the number
of addresses to assign in the Addresses box. To exclude specic addresses from being
assigned by DHCP, specify them in the Excluded IP Address box. Multiple IP addresses
may be specied by seperating them with a comma, e.g. 192.168.11.7,192.168.11.9. You
can also specify an IP address range by start and end address connected by a dash, e.g.

192.168.11.15-192.168.11.21. The ‘,’ and ‘-’ can be used at the same time, e.g. 192.1

68.11.7,192.168.11.9,192.168.11.15-192.168.11.21, up to a total string length of 128
characters.

Click the Help link in the top right corner for more information.

28

Advanced DHCP Settings

This page offers the same DHCP settings as
the previous one, and in addition, offers you
the chance to change the Lease Period, De-

fault Gateway, DNS servers, WINS server, and
Domain Name. Click Apply when you have

the settings the way you want them.

To manually assign an IP address, click

Manual Assignment.

29

DHCP Server (Manual Assignment of IP Address)

To manually link a LAN address to a MAC
address, enter them under Add Client Infor-

mation and click Add.

Current DHCP Client Information shows

all LAN addresses currently assigned by
AirStation’s DHCP. You may congure a
specic client to always recieve the same
IP address by clicking Manual Assignment
to the right of its MAC Address. Clicking
Delete returns a manually assigned client
to normal DHCP operation. Edit allows
you to manually adjust a linked IP Address
and Mac Address in the Client Information
window above.

30

Network Cong (Route Info)

By default, the AirStation receives RIP
(Route Information Protocol) informa­tion only from your local network, and
doesn’t broadcast RIP at all. For large,
complicated network congurations,
you may wish to modify this behavior.
Click Apply when you have your desired
conguration.

Lower on the page, routing information
is displayed. Click Edit Routing Informa-
tion to add a new route manually.

31

Network Conguration (Edit Routing Information)

To congure a route manually, enter its

destination address and gateway. Enter
a maximum number of hops allowable in
Metric and click Add.

32

NAT

You may disable Network Address
Translation and IPsec passthrough by
unchecking the appropriate Enable boxes.
If you have a DMZ, enter its IP address
in the IP Address of DMZ box. Incoming
packets containing no recognizable
destination port information will be
redirected to the DMZ’s IP address.

Click Apply when done.

To set a NAT table entry manually, click

Edit NAT Table.

33

NAT (Manual Entry)

From this page you may manually add

entries into the Address Translation

Table. Click Add New Group when each is

complete.

34

IP Filter

Your AirStation comes pre-congured
with basic rules. You may choose which
of these to use by clicking on Add/Delete
Basic Rules and turning to page 36.

To make a custom rule, click on Congure
IP Filter (page 37).

35

IP Filter (Add/Delete Basic Rules)

Get here by clicking on Add/Delete Basic
Rules (see page 35). You may choose which

of AirStation’s precongured basic rules
are enabled or disabled. Active rules are
displayed with a green background, and
disabled rules are shown in red. Choose
the rules you want to use by clicking under
Operation. When your choices are complete,
click on Initialize.

36

IP Filter (Congure IP Filter)

Clicking on Congure IP Filter from the IP

lter page (page 35) will bring you to this

page, where you can make your own rules.

Click Add Rule when you have each rule

congured the way you want it.

37

Network Conguration (Intrusion Detector)

To enable intrusion detector, choose

Enable or Enable (Apply packet lter rules)

from the Intrusion Detector drop-down
box. If packet lter rules are applied,
packets will be ltered with packet lter
rules before Intrusion Detector is applied.

Blocking IP spoong blocks packets from
devices using an IP address that is not
their own.

In the Threshold Value box, enter the
number of times an event has to occur
before you receive notication.

To congure your email alerts, enter your
email address and mail server information.
You may make up a sender email address,

such as “[e-mail]”. Alert emails will appear to come from this address.

Intrusion detector also blocks unauthorized access attempts and suspicious trafc from
WAN-side devices (the internet).

38

UPnP

You may disable Universal Plug and
Play functionality by unchecking
Enable here. Note that Windows (MSN)
Messenger will not function correctly
with UPnP disabled.

39

AOSS

Clicking Start AOSS Sequence has the same
function as pushing the AOSS button on the
router: it initiates the AOSS process.

If all your clients support AOSS, it’s very
simple to set them up. Press the AOSS
button on the router, or the one on this
page, and then push the AOSS button on
the client device.

Each client device will have to be set up
seperately. Wait for each AOSS process to
nish before starting the next one.

Consult your client device’s documentation
for the location of its AOSS button.

40

802.11g (Basic)

If you have a mixed mode network,

with both 802.11b and 802.11g clients,

it’s recommended that you check 11g

protection to ensure that slower 11b clients

don’t hog all available bandwidth.

Choosing Auto for Wireless mode lets both

802.11b and 802.11g clients connect to the

network. If you would prefer to allow only

one or the other, you have those options as

well.

Two different framebursting modes are

available. These can double throughput in

your network if all clients are congured

to use them. 125* High Speed Mode is an

improved version of Framebursting and is

highly recommended if your clients support

it. If a framebursting mode is enabled and

some of your clients don’t support it, it

simply won’t be used.

Reducing the Sending Output below 100%

will reduce the range of your router.

41

802.11g (Security)

Buffalo recommends that you choose
the strongest form of encryption that’s
supported by all your client devices.

• WEP is a lot better than nothing, and
almost every wireless device ever made

supports it.

• TKIP is slower than WEP but much more
secure.

• AES is the most secure of all, and the

quickest as well. Use it if you can.

Setting the key renewal period too short
can decrease network performance.

By default, the AirStation broadcasts its SSID. This makes it easier to have a client
connect to the AirStation. To disable broadcasting, uncheck this box.

Privacy Seperator prevents wireless clients from being able to browse each other’s
computers. Check Enable to turn it on.

42

Bridge/Repeater (WDS Bridging)

To setup a bridge between two or
more wireless access points, select
Enable and click on Apply.

For more on setting up WDS, see
page 67, or click on Help at the top
right corner of the screen.

43

MAC Access Limit

You may limit access to your wireless
network to specic computers.
Computers not listed on your MAC
Registration List will not be able to
connect to the network. If you enable
this, click Edit Registration List to add
MAC addresses to your registration
list.

44

MAC Access Limit (Edit Registration List)

Advanced Settings

Enter a MAC address and click Apply
for each client that’s going to be
accessing the network.

45

Admin Conguration (Name/Password)

Here, you can change your AirStation’s
name on your network and the
administrator password. The name of
the administrator account is xed as
“root”. If you have many AirStations on
your network, having clear, descriptive
names for each can make them much

easier to administrate.

46

Admin Cong (Date/NTP)

You may set the time and date on your
AirStation by entering it manually, and
then clicking Apply.

You may also click Acquire Current

Time from your PC to set time and date

automatically to match the PC you’re
using to set it up.

If you have an NTP time server on your
network, Enable NTP functionality and
enter your NTP Server Name. Choose how
often you want time updated and click

Apply.

If you’re setting time manually, you’ll need
to select your Time Zone and click Apply.

47

Syslog Transfer

If you have a syslog server on your
network, you may send logs to it.
Check Enable to have logs transferred.
Enter the address of your Syslog
Server, check the logs you want
transferred, and click Apply.

48

Save/Load Conguration

Once your AirStation’s congured
the way you want it, you can save
the conguration here. You’ll need
the current administrator password
to restore the conguration from the
backup le later.

Click Help at the top right corner
of the page for more information on
backing up and recovering system
conguration les.

49

Initialize/Reboot

Click Restart Now to restart your
AirStation. Click Initialize Now to
restore your AirStation to factory
defaults and restart it.

50

Firmware Update

Click Browse to select your rmware
update le. Then, click the Firmware
Update button to update rmware.

Firmware Update may take several
minutes to complete. Do not power
down the router until Firmware
Update is nished and the diag light
on the front of the router has stopped
blinking.

When available, updated rmware
may be downloaded from

www.buffalotech.com.

51

System Information

The System Information page lists all the
setup information for your AirStation.
It can be very handy for setting up
clients that don’t support AOSS.

52

Log Information

Here you can choose what information
gets logged and see recent log entries.

53

Packet Trafc Information

Here, you can see the packets and
errors for each of your networks.

54

Client Monitor

Client Monitor shows you a list of all
clients currently connected to the
wireless network.

55

Ping Test

To perform a Ping test, enter a target
(such as 192.168.11.2 or www.
buffalotech.com) and click Perform.

Successful pings return “64 bytes
from . . .” messages. If the ping
returns “Connection failed” or other
errors, something is preventing you
from communicating successfully with
your target.

56

Connecting to a Preexisting Network

Add an AirStation without changing your existing LAN conguration

1. Set the AirStation into Access Point Mode by moving the switch on the bottom from

AUTO to BRI.

2. Connect one of the AirStation’s LAN ports to an existing router or switch on your
network. Nothing should be plugged into the WAN port.

3. Open LAN Settings - LAN Port Settings and congure the following settings:

IP Address =[192.168.11.1] (Specify an unused network address from the existing LAN.)

Subnet Mask=[255.255.255.0] (Use the same Subnet Mask as the existing LAN.)

DHCP Server Function=[Disable]

4. Restart PC.

57

Antenna

The WHR-G54S’s external antenna will usually give the best
performance if oriented to point straight up. If your AirStation is
resting on its side, use the antenna’s swivel and twist function to

orient it pointed upward.

In some environments it’s desirable to further increase range by
installing an external, higher-gain antenna. External antennas come
in all shapes and sizes. Antennas also come with different connectors.
The WHR-G54S has an RP-SMA connector on it. If your antenna has
a different kind of connector, you’ll need an adaptor.

To install a different antenna, unscrew the stock antenna from
the RP-SMA connector on top of the AirStation, and screw on the
connector or adaptor from your new antenna.

58

Specications

For more information, FAQ’s, and updates, consult the AirStation website at

http://www.buffalotech.com.

WHR-G54S AirStation Specications

Physical Specications

Dimensions 1.1 x 5.1 x 5.7 in. (28 x 130 x 144mm)
Weight 9.8 oz. lb. (277g)

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 output; 100-120V AC, 50/60 Hz
Power Consumption about 6.5 Watts (Max)

59

Speci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 commu­nication equipment.

Network Compatability

IEEE802.11g/b Standard for Wireless LANs (125* High Speed Mode also Available.)
Wi-Fi (Wireless Fidelity) certi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)

60

11 selectable channels (3 non-overlapping)
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: 19dBm (802.11b), 16dBm (802.11g)
Transmit Rate:
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 Ofce Environment

160 m (525 ft.)
270 m (885 ft.)
400 m (1300 ft.)
550 m (1750 ft.)

Specications

61

Specications

Semi-Open Ofce Environment

50 m (165 ft.)
70 m (230 ft.)
90 m (300 ft.)
115 m (375 ft.)

Closed Of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.

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

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

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

• In Closed Ofce environments, workspace is separated by oor-to-ceiling brick walls.

62

Specications

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

63

Troubleshooting

Common Problems

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

• Conguration mismatch, client cannot connect to the AirStation.

• Absence or conict with the Client Driver.

• Conict of another device with the AirStation hardware.

LED Activity

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.

• The Red Diag LED will ash during boot and rmware updates.

• The Amber AOSS LED will glow while AOSS is in use.

DIAG LED Activity

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

64

Troubleshooting

DIAG LED Activity Table

DIAG LED Display Time Description/Action

Continuous Red Starting RAM Error Red ash, 2 times Starting Flash

ROM Error

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

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

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 correct TCP/IP settings.
To add or change 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 Network Properties.

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

protocol is installed.

65

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 that the parameters match the settings provided by your
LAN Administrator. Make changes if necessary, and click OK.

5. If prompted, restart your computer.

Other Problems

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

66

Conguring a WDS Bridge

Your AirStation’s WDS bridging capability allows you to extend the size of your wireless network
by adding additional AirStations, all connected wirelessly.

In this simple example, we’ll connect two AirStations in a wireless bridge. You may use these
same steps to add additional bridges for greater coverage.*

For easiest conguration, we recommend conguring all components in close proximity before
deploying them to their nal positions. Wired connections make initial conguration even
simpler.

The rst AirStation will be the router that
receives the internet connection. On the bottom
of the AirStation, make sure that the switch
is set to “AUTO”. If desired, you may connect
the Ethernet cable from your cable or DSL
modem to its WAN port now, though this is not
necessary for conguration. Power on the rst

AirStation.

The second AirStation will be congured as a
repeater/bridge. Make sure that its switch is
set to “BRI”. Use a RJ-45 cat5 Ethernet cable to
connect LAN ports of the two AirStations. Power
up the second AirStation.

67

Conguring a WDS Bridge

Connect a PC’s Ethernet port to another RJ-45 port on the main router (the rst
AirStation). You will use this PC to congure the settings of the AirStations.

Here’s the whole setup, ready for initial conguration.

* Note: Each AirStation may be part of 6 different bridges. Remember that each layer

of bridges takes about half your total network speed, so avoid conguring daisy-chains
more than 4 bridges long. A star-pattern is always better, with a central router serving
multiple bridges.

68

Once the AirStations are powered on, you will
want to make sure that they are in factory
default conguration. On the bottom of each,
hold down the “INIT” button for three seconds.
This will reset them to factory defaults. They
will take 30-60 seconds to reboot afterwards.

Power on your PC. Make sure that it
is congured to “obtain an IP address
automatically” from DHCP. Open a web
browser and in the address eld, enter

192.168.11.1. This is the default IP address
of your rst AirStation.

A login window will pop up. The default
username is “root”. Leave the password eld
blank and click OK.

Conguring a WDS Bridge

69

Conguring a WDS Bridge

The Web-Based Conguration Utility for your rst
AirStation will open. Click on the Advanced tab.

On the left side menu, click on Wireless Cong, and then

Basic.

Change the Wireless Channel from Auto to a channel.
Make a note of the channel that you’ve chosen, because all
of your wireless devices will need to be congured to use
this same channel. Change Framebursting from 125 High

Speed Mode to Framebursting or Do not use (Framebursting

is recommended if all your client devices support it). Click
Apply. Your AirStation will reboot in 30-60 seconds.
Optional: Note the SSID of this AirStation. By default,
this value will be different for each AirStation. For easy
roaming, you may want to change the SSIDs of both
AirStations to a constant value.

70

Conguring a WDS Bridge

On the left-side menu, click on Wireless Cong, and
then Repeater.

Repeater-Bridge (WDS) must be set to Enable. If it is
not, change it to Enable in the drop down menu and
click Apply. After the AirStation reboots, the screen
will refresh. Click Edit Registered WDS Partners.

Under Add New WDS Partner Access Point, enter the
wireless MAC address of the second AirStation, the
one that you want to form a bridge with. You can
get this from the bottom of the second AirStation (see
above). Enter it with each pair of digits separated
by a colon, e.g. 000D0B10F778 would be entered
“00:0D:0B:10:F7:78”. Press New Partner when done.
The AirStation will reboot, and when the screen
refreshes, the second AirStation’s MAC address will
be listed under Bridgeable Access Points.

71

Now, you need to congure the second
AirStation with the MAC address of the
rst one. In your browser’s address eld,
enter “192.168.11.100”. This will take
you into the Web-Based Conguration
Utility for the second AirStation.

Once again, the username is “root” and
the password is blank.

Conguring a WDS Bridge

72

Conguring a WDS Bridge

In the Web-Based Conguration Utility, click on the

Advanced tab, select Wireless Cong, and choose
Basic. Change the wireless channel to match the one

you set for the rst AirStation. Change Framebursting
from 125 High Speed Mode to Framebursting or Do not
use (whichever you chose for the rst AirStation). For
easy roaming, you may change the SSID to match the
current SSID setting of the other AirStation. Click
Apply. Your AirStation will reboot in 30-60 seconds.

Now, under Wireless Cong, choose Repeater.

Conrm that Repeater-Bridge (WDS) is set to Enable.
Click Edit Registered WDS Partners.

73

Conguring a WDS Bridge

Under Add New WDS Partner Access
Point, enter the wireless MAC address of

the rst AirStation (available from the
bottom of the rst AirStation), with each
pair of digits separated by a colon, e.g.
MAC:000D0B10F779 would be entered
00:0D:0B:10:F7:79. Click New Partner
when done. The AirStation will reboot,
and when the screen refreshes, the rst
AirStation’s MAC address will be listed

under Bridgeable Access Points.

The two AirStations are now linked by a wireless bridge. Unplug all the network cables
and test the bridge by logging into each of the access points with a wireless client. You
should be able to connect to either of the access points from Windows Wireless Network
connection, getting an IP address assigned to your client with no error messages. You
should also be able to log into both of their Web-Based Conguration Utilities by
entering their IP addresses into a web browser (192.168.11.1 for the main access point;

192.168.11.100 for the bridged access point). If the rst AirStation is connected to the
internet, you should be able to connect to the second AirStation and surf the web.

74

Conguring a WDS Bridge

Conguring a WDS Bridge

Once you can connect to each of your access

Once you can connect to each of your access
points, you should congure WEP encryption.

points, you should congure WEP encryption.
Without WEP, anyone within range of

Without WEP, anyone within range of
your access points can easily connect to

your access points can easily connect to
your network. From within the second

your network. From within the second
AirStation’s Web-Based Conguration Utility

AirStation’s Web-Based Conguration Utility
(192.168.11.100), click on Advanced, then

(192.168.11.100), click on Advanced, then

Wireless Cong, then Security. Note that

Wireless Cong, then Security. Note that

you must set up WEP on the bridge (second

you must set up WEP on the bridge (second
AirStation) rst, before conguring it on the

AirStation) rst, before conguring it on the
main router (rst AirStation), or you will have

main router (rst AirStation), or you will have
to reconnect the network cables to nish

to reconnect the network cables to nish
conguration.

conguration.

Change wireless encryption from “no encryption” to “WEP”. Note that TKIP and AES

Change wireless encryption from “no encryption” to “WEP”. Note that TKIP and AES
encryption schemes will not work with WDS; you must use WEP for encryption. WEP

encryption schemes will not work with WDS; you must use WEP for encryption. WEP
keys may be any of 4 different types; choose one of the following types from the drop-

keys may be any of 4 different types; choose one of the following types from the drop­down “WEP Encryption Key” box:

down “WEP Encryption Key” box:

Character Input - 13 characters (ASCII WEP128 104 bit, key should contain 13

Character Input - 13 characters (ASCII WEP128 104 bit, key should contain 13

alphanumeric characters a-z, A-Z, 0-9)

alphanumeric characters a-z, A-Z, 0-9)

Character Input - 5 characters (ASCII WEP64 40 bit, key should contain 5 alphanumeric

Character Input - 5 characters (ASCII WEP64 40 bit, key should contain 5 alphanumeric

characters a-z, A-Z, 0-9)

characters a-z, A-Z, 0-9)

75

Conguring a WDS Bridge

Hexadecimal Input - 26 digits (Hex WEP128 104 bit, key should contain 26 characters
A-F, 0-9)

Hexadecimal Input - 10 digits (Hex WEP64 40 bit, key should contain 10 characters A-F,
0-9)

Enter at least one encryption key in the rst encryption key space. The key should
match the format of the chosen WEP encryption type. Additional keys may be entered in
boxes 2, 3, and 4.

Click Apply when nished.

After conguring the bridge (the second AirStation) for WEP, log into the rst AirStation’s
Web-Based Conguration Utility (192.168.11.1) and make exactly the same changes
to the WEP settings. All WEP conguration settings must be exactly the same, or the
AirStations will not be able to communicate.

Each wireless client that will connect to the AirStations must also be congured with the
exact same WEP encryption key type and encryption key. Consult your wireless client’s
documentation for more information on conguring its WEP settings.

76

Troubleshooting WDS

Most problems with setting up WDS are caused by incorrectly entering the MAC
addresses into each AirStation’s Web-Based Conguration Utility. If you’re having
problems, check the MAC address settings in both AirStations’s Web-Based Conguration
Utilities. Each Airstation should be congured to be in a bridge with the other’s wireless

MAC address.

Conrm that all bridges are set to the same wireless channel.

Check the Packet Log (Advanced/Diagnostic/Packet Info) in each AirStation’s Web­Based Conguration Utility to conrm communication between them (screenshot to
right). The “WDS” entries should show packets both
sent and received. In this example, the packet log
shows packets sent but not received, so the next
troubleshooting step would be to check the other
AirStation’s settings and packet log for more clues.

If you cannot access the AirStations wirelessly,
reconnect the Ethernet cables as shown on page
67 to easily access the AirStations’s Web-Based
Conguration Utilities.

77

Troubleshooting WDS

Notes on WDS:

1. All wireless access points in the wireless bridge need to support WDS. At time of
publication, only Buffalo G54 and Apple Airport Extreme access points support WDS.

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

3. Start the wireless bridge system with only two access points and then add more, one

at a time.

4. Set up all access points in the wireless bridge in close proximity before deploying them
to their nal location.

5. Only one access point in the wireless bridge should be serving DHCP and routing
services unless a routed wired network exists.

78

Glossary

10BaseT: 802.3 based Ethernet network
that uses UTP (Unshielded twisted pair)
cable and a star topology. 10 Mbps data

tansmission speed.

100BaseT: 802.3 based Ethernet network
that uses UTP (Unshielded twisted pair)
cable and a star topology. 100 Mbps data

tansmission speed.

1000BaseT: 802.3 based Ethernet
network that uses UTP (Unshielded twisted
pair) cable and a star topology. 1000 Mbps

data tansmission speed.

802.1x: The standard for wireless LAN

authentication used between an AP and a
client. 802.1x with EAP will initiate key
handling.

Access Point: A hardware device that acts
as a communication hub for Clients (users
of wireless devices) to connect to a wired

LAN.

Ad-Hoc Network: A network based on
peer-to-peer communication rather than a
router, switch, or hub.

Bandwidth: The transmission capacity of
a computer or a communication channel,
usually stated in Megabits per second
(Mbps).

Bridge: A device which forwards trafc
between network segments with a common
network layer address, based on data link
layer information.

Client: A PC, workstation, or other device
that connects to a network wirelessly
through an Access Point.

Cross-Over Cable: A UTP cable that has its
transmit and receive pair crossed to allow
communications between two devices.

Default Gateway: The IP Address of either
the nearest router or server for the LAN.

79

Glossary

Destination Address: The address portion
of a packet that identies the intended

recipient station.

DHCP (Dynamic Host Con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.

Driver: Software that interfaces a
computer with a specic hardware device.

Dynamic IP Address: An IP address that
is automatically assigned to a client station
in a TCP/IP network, typically by a DHCP

server.

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. It is designed to connect a single
device’s NIC to a router, switch, or hub.
See also Crossover cable.

File and Print Sharing: A Microsoft
application that allows computers on a
network to share les and printers.

Firmware: Computer programming
instructions that are stored in a read­only memory unit rather than being
implemented through software.

Frame: A xed block of data, transmitted
as a single entity. Also referred to as a

packet.

80

Glossary

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.

IP (Internet Protocol) Address: A unique
32-binary-digit number that identi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:

The unique number that distinguishes
every network interface card.

Mbps (Mega Bits Per Second): A

measurement 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.

81

Glossary

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
trafc and a second set for external traf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 trafc based on its originating

address or its type.

PCI (Peripheral Component
Interconnect): A bus that is connected

directly to the CPU.

PCMCIA (Personal Computer Memory Card
International Association) Card: Removable

module that adds features to a portable

computer.

Peer-to-peer: This simple network is formed by
connecting computers directly, without use of
routers or hubs. A crossover cable is plugged
into an Ethernet port in each computer,
connecting them directly.

Ping (Packet Internet Groper): An Internet

utility used to determine whether a particular
IP address is accessable.

Plug and Play: Hardware that, once physically
installed, nishes its installation automatically
and may immediately be used, as opposed
to hardware that requires further manual
conguration.

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

82

Glossary

PPPoE (Point-to-Point Protocol over
Ethernet): A specication for connecting

users on an Ethernet line to the Internet
through a common broadband medium.

Protocol: A standard way of exchanging
information 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 collects,
strengthens and transmits information to
all connected devices, allowing the network
to be extended to accommodate additional
workstations. See also Bridge.

RC4: The encryption algorithm used by

WEP.

RJ-45 connector: An 8-pin connector
used between a twisted pair cable and a

data transmission device.

ROM (Read Only Memory): Memory

hardware that allows fast access to
permanently stored data but prevents
addition to or modication of the data.

Router: A device in a network that
handles message transfer between
computers. Similar to a hub, but with
added functionality and efciency.

Roaming: The ability to use a wireless
device while moving from one access point
to another without losing the connection.

Server: Any computer that makes 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 dene and deliver
electronic mail (E-mail) from one location
to another.

83

Glossary

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.

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

84

Glossary

WEP (Wired Equivalent Privacy): A

security protocol for wireless local area
networks dened in the 802.11b standard,
using a 64 bit or 128 bit key. WEP was
designed to provide the same level of
security as that of a wired LAN. However, it
has been found that WEP is not as secure
as once believed.

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
speci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.

85

FCC / CE Information

Notice

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 or more 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 Warning

Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.

FCC RF Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for uncontrolled
equipment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C

86

FCC / CE Information

to OET65. This equipment should be installed and operated with at least 20cm and more
between the radiator and person’s body (excluding extremities: hands, wrists, feet and
legs).

This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter. BUFFALO declares that WHR-G54S is limited in CH1~11 by specified
firmware controlled in the 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.

87

Warranty Information

Buffalo Technology (Melco Inc.) products come 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, modi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 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 pro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.

© 2003-2005 Buffalo Technology (Melco, Inc.)

88

Contact Information

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:

[e-mail]

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]

89

Buffalo Technology UK Ltd.
176 Buckingham Avenue,
Slough, Berkshire, SL1 4RD
United Kingdom

GENERAL INQUIRIES

Email: [e-mail]

TECHNICAL SUPPORT

Phone (UK only): 08712 50 12 60*
Phone: [phone]
Email: [e-mail]
*Calls cost 8.5p per minute

Technical Support Operating Hours
Monday - Friday (GMT)
9:00 AM - 6:00 PM Monday-Thursday
9:00 AM - 4:30 PM Friday

Contact Information

90

GPL Information (North America)

Thank you for your interest in Buffalo products. Our GPL software delivery policy is outlined below.

For each individual product and revision, please send one individually packaged self addressed padded CD
shipping envelope, containing a blank CD-R to the following address:

Buffalo Technology USA Inc.
4030 W. Braker Lane Suite 120
Austin, TX 78759
Attn. GPL Department

Within the envelope containing the self addressed padded CD shipping envelope, please include a bank draft
or money order for $20 (USD) (Made out to: Buffalo Technology) to cover our handling fee, postage and CD
preparation. The CD-R should have the name of the product and revision number clearly written on the
actual CD-R (not on the insert).

We do not send GPL source in bulk on a DVD. And order conrmation is not required by the GNU General
Public License.

We are more than happy to comply with your request; however, we must ask you to comply with our GPL
distribution policy, which complies with the GNU General Public License.

Sincerely,
Buffalo Technology GPL Department

91

GPL Information (Europe)

Thank you for your interest in Buffalo products. Our GPL software delivery policy is outlined below.

For each individual product and revision, please send one individually packaged self addressed padded CD
shipping envelope, containing a blank CD-R to the following address:

Buffalo Technology Ireland Ltd
Free Zone East, Shannon, Co. Clare
Ireland
Attn. GPL Department

Within the envelope containing the self addressed padded CD shipping envelope, please include a bank draft
or money order for €20 (Euro) (Made out to: Buffalo Technology) to cover our handling fee, postage and CD
preparation. The CD-R should have the name of the product and revision number clearly written on the
actual CD-R (not on the insert).

We do not send GPL source in bulk on a DVD. And order conrmation is not required by the GNU General
Public License.

We are more than happy to comply with your request; however, we must ask you to comply with our GPL
distribution policy, which complies with the GNU General Public License.

Sincerely,
Buffalo Technology GPL Department

92

125* High Speed Mode

* When operating in High-Speed Mode, this Wi-Fi device achieves an actual
throughput of up to 34.1 Mbps, which is equivalent to the throughput of
a system following 802.11g protocol and operating at a signaling rate of
125 Mbps.

93