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www.buffalotech.com

User Manual - AirStation WHR-G54S

Wireless Cable/DSL Smart Router

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2

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

Basic Setup . . . . . . . . . . . . . . . . . . . . . . 6

AOSS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Router Access Point Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

AirStation Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . 17

TOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

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

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

Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Wireless Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Internet Connection Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Advanced Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

WAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . 25

WAN port . . . . . . . . . . . . . . . . . . 25 PPPoE . . . . . . . . . . . . . . 26

LAN Configuration . . . . . . . . . . . . . . . . . . . . . . . 27

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

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DHCP Server . . . . . . . . . . . . . . . . . . . . . 28

Network Configuration. . . . . . . . . . . . . . . . . . . . . 29

Route information . . . . . . . . . . . . . . . . . . . . 29

Address Translation . . . . . . . . . . . . . . . . 32

IP Filter . . . . . . . . . . . . . . . . . . . . . . 33

Intrusion Detector . . . . . . . . . . . . . . . . . 37

UPnP . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Wireless Configuration . . . . . . . . . . . . . . . . . . . . . . . . 39 A O S S . . . . . . . . . . . . . . . . 3 9

802.11g . . . . . . . . . . . . . . . . . 40

Basic . . . . . . . . . . . . . . . . . . . . . . 40

Security . . . . . . . . . . . . . . . . . 41

Repeater . . . . . . . . . . . . . . . . . . . . 42

MAC access limit . . . . . . . . . . . . . . . . . . . . . . . . 43

Admin Configuration . . . . . . . . . . . . . . . . . . . 45

Password . . . . . . . . . . . . . . . . . . . 45

D a t e / N T P . . . . . . . . . . . . . . 4 6

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4

Syslog Transfer . . . . . . . . . . . . . 47

Save/Load Configs . . . . . . . . . . . . . . . . . 48

Initialize/Reboot . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Firmware Update. . . . . . . . . . . . . . . . . . . . . . 50

Diagnosti c. . . . . . . . . . . . . . . . . . . . . . 51

System Information. . . . . . . . . . . . . . . . . . . . . . 51

Log Info. . . . . . . . . . . . . . . . . . . . . . 52

Packets Info. . . . . . . . . . . . . . . . . . . . . . 53

Client Monitor. . . . . . . . . . . . . . . . . . . . . . 54 Ping Test. . . . . . . . . . . . . . . . . . . . . . 55

Connecting to an existing network. . . . . . . . . . . . . . . . . . . . . . 56

Antenna. . . . . . . . . . . . . . . . . . . . . . 57

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 58

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 63

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .71FCC Information . . . . . . . . . . . . . . . . . . . . . . . . 76

Warranty Information. . . . . . . . . . . . . . . . . . . . . 78

Contact Information . . . . . . . . . . . . . . . . . . . . . 79

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Congratulations on your purchase! With both a wired LAN router and a 802.11g wireless accesspoint, the AirStation WHR-G54S Cable/DSL Routeris perfect for linking your wireless devices with

a wired network and each other.

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

The AirStation WHR-G54S package contains the following items:

WHR-G54S Base Station

Antenna

AC adapter and power cable

CAT5 LAN cable

Utility CD with Manual Quick Setup Guides

Warranty Statement

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Begin by finding a good place to set up your router/access point. Some things to consider: Youll 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. Youll also want a power outlet nearby.

Keep the access point as central in your work area as possible. Signal strength and speed fall offwith distance.

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

Screw the antenna into the top of your AirStation.

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Make note of the AirStations wired MAC address. The LAN or WiredMAC 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, subnetmask address, default gateway address, DNS server address, or PPPoE parameters, is necessary toaccess your internet connection. Write down any necessary information that your ISP requires forconnection.

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 setup your router. This type of setup will eliminate possible setup problems with the wireless adapteron the computer being used to configure the AirStation.

The computer used to configure the AirStation should be set to obtain an IP address automaticallyusing a DHCP server. The WHR-G54S has a default LAN IP address of 192.168.11.1 and Subnet Maskof 255.255.255.0.

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1. Power down the Cable or DSL modem and the computer which will be used to configure theAirStation router.

2. Plug the Cable or DSLs LAN Ethernet cable into the AirStations WAN port. Initially, you mayneed 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 endinto your computers Ethernet adapter (NIC). If you plan to initially configure the AirStationwirelessly (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 routerand wait one full minute, and finally power on the computer which will be used to configure theAirStation. If the red DIAG light on the AirStation is lit or flashing after several minutes of beingpowered on, please consult Buffalo Technology Technical Support.

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Launch a web browser on the computer that youre going touse to configure the AirStation.

Enter192.168.11.1into the URL field. Naturally, if you changeyour AirStations IP address, youll have to enter the new ad-dress instead.

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

Enter root as the User name and leave the password fieldblank.

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Your AirStations SmartRouter technology will determine the type of internet connectionyou 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 IPaddress. If additional login information is required to connect to the internet, the wizardwill 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 PPPoEinformation be entered manually, see page 25.

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This is the opening page of yourAirStations configuration tool. Youcan always get to it from within theconfiguration screens by clicking on TOP.From here, you can configureport mappingfor your internet games, configure yourfirewall, setup encryption, choose yourwireless channel, update your AirStationsfirmware, and reset your Internet

connections configuration. As you explorethe configuration tool, you can usually getcontext sensitive help by clicking on theHelplink at the top right of the page.

To go to advanced settings (page 24), clickon theAdvancedtab. To get the system information you need to set up a wireless client

that doesnt support AOSS, click on the System Infotab. See page 17 for more on TOP.

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AOSS(AirStation One-Touch Secure System) is a simple system for configuring yourwireless network securely. If your router and your client device are connected andboth support AOSS, then making a secure wireless connection is very easy.

Push the AOSS button on the back of your router and hold it in for a few seconds.The AOSS light will begin to flash. You now have two minutes to push the AOSSbutton on your client device and finish the connection.

If you have a standalone client device, it willprobably have a little red button labledAOSS on it. Push the button! About 15

seconds later, youll have a secure networkconnection.

If your client device is a PC card, CardBus, orPCI adaptor, the AOSS button will probablybe in its Client Manager Software. Check yourclient devices user manual for instructionson where to push or click the AOSS button.

After youve pressed both buttons, it will take about 15 seconds for the connection to complete. Whenits finished, the AOSS light witll glow a solid red. You now have a secure network connection!

standalone clientdevice

PC card Client ManagerSoftware

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Only one AOSS wireless client adapter can be configured with the AOSS router at a time. Thebuttons 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 configured via AOSS, unlesssignificant changes have been made to the wireless network.

Do not attempt to configure two separate AOSS networks at the same time, as it may cause unde-sired configurations.

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

G54Ss advanced configuration menus.

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This AirStation supports quickly changing theproduct from a wireless router to a conventionalaccess point.

Put your Airstation into Access Point Mode bymoving the switch on the bottom of your AirStationfrom AUTO to BRI. This changes the default IPaddress of the AirStation from 192.168.11.1 to192.168.11.100, and DHCP, NAT, and the WAN portare disabled.

Access Point Mode might be desirable if youreadding wireless capability to an existing networkwith a router. It is not suitable for most homeconfigurations. If you plan to use the AirStation asan normal wireless router, make sure that this switchis in the normal (AUTO) position!

To set up your AirStation as a bridge or repeater,

turn to page 42.

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If your wireless client doesnt supportAOSS, youll have to configure itmanually. From the TOP page, click onthe System Infotab.

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This page gives you all the informationyou might need to configure yournon-AOSS wireless client. Probablyyoull just need the SSID, encryptiontype, and password. Consult yourwireless clients documentation formore information on configuring it ifnecessary.

You can get here from TOP by clicking

theSystem Infotab.

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When you first open your AirStationConfiguration Tool, it will take you to TOP (seealso page 11). From TOP, you can configureport

mappingfor your internet games, configure yourfirewall, setupencryption, choose your wirelesschannel, update your AirStations firmware, andreset your Internet Connections configuration.Clicking theAdvancedtab gives you access to allof the AirStations configuration tools.

You can get back to TOP from anywhere in the

management tool by clicking on TOPbutton atthe top left of the screen.

Lets begin exploring advanced settings byclicking on Internet Games (Port Mapping).

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Select any ports that need to be openedfor your internet games to functioncorrectly. Consult your gamesdocumentation for more information onwhat ports need to be configured.

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From this page, choose the level of firewallsecurity you desire. You may also choose tohave alerts sent to a different PC, if you like.

ClickNextwhen done to restart the router.Get to this page from TOP by clicking on

Firewall/Intrusion Detector.

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This page is available fromTOPby selectingWireless Encryption. Here, you can manually selectthe type of wireless encryption youd like to use.

Your AirStation supports three different encryptionschemes; choose the best one that all your clientssupport.

Virtually all wireless clients support WEP. Its alot better than nothing.

TKIPis much more secure than WEP, but slower.

AESis even more secure than TKIP, and the fastestof all. Highly recommended if all of your wirelessclients support it.

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This page is available fromTOPbyselectingWireless channel. WithAutoChannel selected, your AirStation willchoose the best channel available. Currentchannelwill show the channel that yourAirStation is currently using.

You may also select any channel from 1-11manually. Channels 1, 6, and 11 are non-overlapping. If multiple channels are in

use in an area, select a channel differentor as far away from other channels aspossible.

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This page is available fromTOPbyselecting Firmware update. Use Browsetoselect your firmware update file, and thenclick on Setup. Firmware update may takeseveral minutes to complete. Dont powerdown your AirStation until the diag LEDhas stopped blinking.

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From TOP, selecting theInternetConnection Wizard (Multisession Reset)tab will begin the Internet ConnectionWizard.

The Internet Connection Wizard willonly function correctly in simple net-works, where your cable or DSL modemis plugged directly into your AirStationsWAN port. If you have a complicated

existing network that youre adding theAirStation to, see page 56.

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Advanced Settings lets you configureevery element of your AirStation. Get toAdvanced Settings from TOP by clicking

theAdvancedTab.

Click Helpin the top right corner for moreinformation about any of the pages inAdvanced Settings.

To begin, click on WAN Config. The firstpage in WAN Config, WAN Port, will open.

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Here, you may choose how the AirStationacquires an IP address. Normally, theinternet connection wizard will set this for

you if you have a cablemodem or DSL. Ifyoure not sure what to choose, performEasy Setup.

To setup PPPoE manually, click on click hereand turn to page 26.

Also on this page, underAdvanced

Setup, you may manually set the DefaultGateway, DNS server, WAN MAC address,WAN format, and WEB port number.

ClickApplywhen finished.

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Many DSL connections require a PPPoEConnection in order to log in to an internetconnection. Normally, the Easy Detection

Wizard will help you configure that, but youmay manually configure one here. Consultyour ISP for more information on correctlyconfiguring your PPPoE connection.

To add a new PPPoE connection, click EditConnection List. To choose your preferredconnection, click on Edit Preferred Connection

List.

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Default for the LAN side IP address is192.168.11.1. To add the AirStation to anexisting LAN, specify a unique IPaddress, not

used elsewhere in the network.The default Subnet Mask is 255.255.255.0. Toconnect AirStation to an existing LAN specifythe Subnet Mask that the LAN uses.

If theres more than one DHCP server on anetwork, disable all but one of them. To haveDHCP assign addresses from a specific range,

enter a begining address byAssigned IP Addressand give the number of addresses to assign inthe Unitsbox. To exclude specific addressesfrom being assigned by DHCP, specify themin the Excluded IP Addressbox. Multiple IPaddresses may be specified 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 thesame time, e.g. 192.168.11.7,192.168.11.9,192.168.11.15-192.168.11.21, up to a total string length of 128characters.

Click Helpfor more information, including methods for connecting AirStation to an existing LAN.

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This page offers the same DHCP settings as theprevious one, and in addition, offers you thechance to change the Lease Period,Default Gateway,

DNS servers,WINS server, and Domain Name. ClickApplywhen you have the settings the way youwant them.

To manually assign an IP address, clickManualAssignment.

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To manually assign a LAN address to a MACaddress, enter them underAdd Client Informa-tionand clickAdd.

Current DHCP Client Informationshows all LANaddresses currently assigned by AirStationsDHCP.

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By default, the AirStation receives RIP(Route Information Protocol) informationonly from your local network, and doesnt

broadcast RIP at all. For large, complicatednetwork configurations, you may wish tomodify this behavior. Click Setupwhen youhave your desired configuration.

Lower on the page, routing information isdisplayed. Click Edit Routing Informationtoadd a new route manually.

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To configure a route manually, enter its destinationaddressandgateway. Enter a maximum number ofhops allowable inMetricand clickAdd New.

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You may disable Network Address Translationand IPsec passthrough by unchecking theappropriateEnableboxes. If you have a

DMZ, enter its IP address in the IP Address ofDMZbox. Incoming packets containing norecognizable destination port information willbe redirected to the DMZs IP address.

ClickApplywhen done.

To set a NAT table entry manually, click EditNAT Table.

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From this page you may manually add entries intothe Address Translation Table. Click New Groupwhen each is complete.

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Your AirStation comes pre-configured withbasic rules. You may choose which of these touse by clicking onAdd/Delete Basic Rulesand

turning to page 35.To make a custom rule, click on Configure IPFilter(page 36).

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Get here by clicking onAdd/Delete Basic Rules(see page 34). You may choose which ofAirStations preconfigured basic rules are enabled

or disabled. Active rules are displayed with agreen background, and disabled rules are shownin red. Choose the rules you want to use byclicking under Operation. When your choices arecomplete, click onInitialize.

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Clicking on Configure IP Filterfrom the IP filterpage (page 34) will bring you to this page,where you can make your own rules. ClickAdd

Rulewhen you have each rule configured theway you want it.

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To enable intrusion detector, choose Enableor Enable (Apply packet filter rules)from theIntrusion Detector drop-down box. If packet

filter rules are applied, packets will be filteredwith packet filter rules before Intrusion Detectoris applied.

Blocking IP spoofing blocks packets fromdevices using an IP address that is not theirown.

In the Threshold Valuebox, enter the number of

times an event has to occur before you receivenotification.

To configure your email alerts, enter your emailaddress and mail server information. Youmay make up a sender email address, such as

alert@router.com. Alert emails will appear to come from this address.

Intrusion detector also blocks unauthorized access attempts and suspicious traffic from WAN-side

devices (the internet).

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You may disable Universal Plug and Playfunctionality by unchecking Enablehere.

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Clicking Start AOSS Sequencehas the samefunction as pushing the AOSS button on therouter: it initiates the AOSS process.

If all your clients support AOSS, its very simpleto set them up. Press the AOSS button on therouter, or the one on this page, and then push theAOSS button on the client device.

Each client device will have to be set upseperately. Wait for each AOSS process to finishbefore starting the next one.

Consult your client devices documentation forthe location of its AOSS button.

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If you have a mixed mode network, with both802.11b and 802.11g clients, its recommendedthat you check 11g protectionto ensure that

slower 11b clients dont hog all availablebandwidth.

ChoosingAutoforWireless modelets both802.11b and 802.11g clients connect to thenetwork. If you would prefer to allow only oneor the other, you have those options as well.

Two different framebursting modes are

available. These can double throughput inyour network if all clients are configured to usethem. 125* High Speed Modeis an improvedversion of Frameburstingand is highlyrecommended if your clients support it. If aframebursting mode is enabled and some ofyour clients dont support it, it simply wont beused.

Reducing theSending Output below 100% willreduce the range of your router.

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Buffalo recommends that you choose the stron-gest form of encryption thats supported by allyour client devices.

WEPis a lot better than nothing, and almostevery wireless device ever made supports it.

TKIPis slower than WEP but much moresecure.

AESis the most secure of all, and the quickestas well. Use it if you can.

Setting the key renewal period too short candecrease network performance.

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To setup a bridge between two or morewireless access points, select Useand clickon Setup.

For more on setting up WDS, see page 67,or click on Helpin the top right corner ofthe screen.

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You may limit access to your wireless net-work to specific computers. Computers notlisted on your MAC Registration List will

not be able to connect to the network. If youenable this, click Edit Registration Listto addMAC addresses to your registration list.

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Advanced SettingsEnter a MAC address and clickApply foreach client thats going to be accessing thenetwork.

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Here, you can change your AirStationsname on your network and theadministrator password. The name of the

administrator account is fixed as root.If you have many AirStations on yournetwork, having clear, descriptive namesfor each can make them much easier toadministrate.

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You may set the time and date on yourAirStation by entering it manually, and thenclickingApply.

You may also clickAcquire Current Time fromyour PC to set time and date automatically tomatch the PC youre using to set it up.

If you have an NTP time server on yournetwork, Enable NTP functionality and enteryour NTP Server Name. Choose how often youwant time updated and clickApply.

If youre setting time manually, youll need toselect your Time Zone and clickApply.

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If you have a syslog server on yournetwork, you may send logs to it. CheckEnableto have logs transferred. Enter the

address of your Syslog Server, check thelogs you want transferred, and clickApply.

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Once your AirStations configuredthe way you want it, you can save theconfiguration here. Youll need the

current administrator password to restorethe configuration from the backup filelater.

ClickHelpat the top right corner of thepage for more information on backing upand recovering system configuration files.

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Click Restart Nowto restart yourAirStation. Click Initialize Nowto restoreyour AirStation to factory defaults and

restart it.

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Click Browseto select your firmwareupdate file. Then, click the FirmwareUpdatebutton to update firmware.

Firmware Update may take severalminutes to complete. Do not powerdown the router until Firmware Update isfinished and the diag light on the front ofthe router has stopped blinking.

When available, updated firmware may be

downloaded from www.buffalotech.com.

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The System Information page lists all thesetup information for your AirStation. Itcan be very handy for setting up clients that

dont support AOSS.

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

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

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

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To perform a Pingtest, enter a target (suchas 192.168.11.2orwww.buffalotech.com) andclick Execute.

Successful pings return 64 bytes from . . .messages. If the ping returns Connectionfailed or other errors, something ispreventing you from communicatingsuccessfully with your target.

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Set the AirStation into Access Point Mode. Connecting one of the AirStations LAN ports to anexisting router or switch on your network.

1. Unplug WAN side cable.

2. Open LAN Settings - LAN Port Settings and configure the following settings.

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

Subnet Mask=[255.255.255.0] (Consult the network administrator to determine the properSubnet Mask.)

DHCP Server Function=[Disable]

3. Restart PC.

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The WHR-G54Ss external antenna will usually give the best performance iforiented to point straight up. If your AirStation is resting on its side, use theantennas swivel and twist function to orient it pointed upward.

In some environments its desirable to further increase range by installing anexternal, higher-gain antenna. External antennas come in all shapes and sizes.Antennas also come with different connectors. The WHR-G54S has anRP-SMAconnector on it. If your antenna has a different kind of connector, youll needan adaptor.

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

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For more information, FAQs, and updates, consult the AirStation website at

http://www.buffalotech.com.

Physical Specifications

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

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Regulatory Information

Wireless communication is often subject to local radio regulations. Although AirStation wirelessnetworking products have been designed for operation in the license-free 2.4 GHz band, local radio

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

Networking Characteristics

Compatibility

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

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

Host Operating SystemMicrosoft 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 CharacteristicsRF Frequency Band 2.4 GHz (2400-2483 MHz)

11 selectable channels (3 non-overlapping)

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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 Office Environment

160 m (525 ft.)

270 m (885 ft.)400 m (1300 ft.)

550 m (1750 ft.)

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Semi-Open Office Environment

50 m (165 ft.)

70 m (230 ft.)

90 m (300 ft.)

115 m (375 ft.)

Closed Office

25 m (80 ft.)

35 m (115 ft.)

40 m (130 ft.)50 m (165 ft.)

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

Delay Spread (at FER of

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Table Radio Characteristics lists the typical ranges when used indoors:

In Open Office environments, clients can see each other, i.e. there are no physical obstruc-tions between them.

In Semi-open Office environments, work space is separated by room dividers; client cardsare at desktop level.

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

Note:The range values listed in Table Radio Characteristics are typical distances as measuredat Buffalo Technology AirStation laboratories. These values are provided for your guidance butmay 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 246211 default channel

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Out of range, client cannot connect to the AirStation.

Configuration mismatch, client cannot connect to the AirStation.

Absence or conflict with the Client Driver. Conflict of another device with the AirStation hardware.

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 communicationis active.

Ethernet LED should be Green (100Mbps) or Amber (10Mbps) while the communication is ac-tive.

The Red Diag LED will flash during boot and firmware updates.

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

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DIAG LED Display Time Description/Action

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

Error

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

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

If the LEDs indicate that the network is working properly (Power LED is on, Transmit/Receive LEDblinks), check the TCP/IP settings of the network.

Consult the LAN Administrator for 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.

If th i l d t t l i t t i t ll d li k th Add b tt d l t th TCP/IP

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If the wireless adapter protocol is not yet installed, click theAddbutton and select the TCP/IPprotocol from the list. Refer to Windows Help for more information.

If the wireless adapter protocol is installed, select the protocol and click the Propertiesbutton.Verify that the parameters match the settings provided by your LAN Administrator. Makechanges if necessary, and click OK.

5. If prompted, restart your computer.

Please refer to www.buffalotech.comfor further reference materials.

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The most common issue with WDS installations is using the wrong MAC address. The properMAC Address for the access points is the Wireless MAC Address. The best place to get this from

System Informationin the configuration tool.

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 ports support WDS.

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

1.Start the wireless bridge system with only two access points and then add more, one at a time.

2.Setup all access points in the wireless bridge in close proximity before deploying them to theirfinal location.

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

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1. It is recommended that all access points in the bridge are reset to their factory default settings.This is done by holding the INIT button on the rear of the access point down for 5-10 seconds.

2. Login to the first access point in the wireless bridge (this should be the DHCP server enabledaccess point if there is not already a routed wired network).

3. Click on theAdvancedbutton.

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 amongstall access points in the bridge. If roaming is desired, then set the SSID settings identically as well.Press the Set button if any changes are made.

(NOTE: If the IP address was changed, then reconnecting to the access point for configuration willrequire accessing it via its new IP address in a web browser (e.g. http://NEW_IP_ADDRESS).Write down the new IP address carefully if you changed it, and put it in a safe place!

5. Click on the LAN portlink on the left.

6. Check that the LAN side IP addressvalues are correct for your network, or leave them at theirdefaults. Record the LAN side IP address. Press the Setbutton if any settings on this page have been

set.7. Click on theManagementlink on the left.

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

address (including the colons) Please make sure the MAC address is recorded from the Wireless

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address (including the colons). Please make sure the MAC address is recorded from the Wirelesssection and not the other sections.

9. Logout of the access point by clicking on the Logoutlink on the left. Close the browser window.

10. Login to the second access point in the wireless bridge.11. Click on theAdvancedbutton.

12. The wireless settings page will appear. Select the proper settings for the wireless network.Refer to the settings recorded from the first access point. All settings except for the SSID need to beidentical amongst all access points in the bridge. If roaming is desired, then set the SSID settingsidentically as well.

13. Click on the LAN portlink on the left.

14. Make sure that the LAN side IP addresssetting is different than that of the first access point. TheIP addresses cannot be the same, but they should be on the same network. It is recommended thatthe IP address of the second access point is one higher then that of the first access point. Thus, ifaccess point ones address is 1.1.1.1, then access point twos address should be 1.1.1.2. If there is aDHCP server functionsetting on this page, then make sure to set it to Do not useor to Disabled. Pressthe Setbutton when finished. If the IP address was changed, then reconnecting to the access pointfor configuration will require accessing it via its new IP address in a web browser (e.g. http://

NEW_IP_ADDRESS).

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

16. Enable the WDS function and press the Setbutton. On the WHR-G54S, move the switch on the

bottom from AUTO to BRI

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bottom from AUTO to BRI.

17. Enter the Wireless MAC Address of the first access point (which was recorded on Step 8) intothe fieldMAC Address of AirStation (Wireless)(include the colons). Press theAddbutton.

18. The Wireless MAC address inputted on the step above will appear in the Connected AirStationtable. Confirm that enable is checked, and then press the Enable marked itembutton.

19. At the top of the page, press theApplybutton.

20. Once the router has rebooted, click on theManagementtab on the left.

21. The System Information page will appear. In the Wireless section of the table record the MACaddress (including the :s). Please make sure the Wireless MAC address, and not the wired MACaddress, is recorded.

22. Logout of the access point by clicking on the Logoutlink on the left. Close the browser window.

23. Login to access point one again.

24. Click on theAdvancedbutton.

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

26. Enable the WDS function and press the Setbutton.

27. Enter the Wireless MAC Address of the first access point (recorded in Step 21) into the field thatsaysMAC Address of AirStation(Wireless)(include the :s). Press theAddbutton.

28. The Wireless MAC address inputted on the step above will appear in the Connected AirStation

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28. The Wireless MAC address inputted on the step above will appear in the Connected AirStationtable. Please check that the checkbox under enableis checked, and then press the Enable marked itembutton.

29. At the top of the page, press theApplybutton.

30. Once the router has rebooted, click on theManagementtab on the left.

31. Click on the Ping Testlink on the left.

32. In the Destinationfield enter the IP address of the second access point and press the OKbutton.

a. If the Resultsection of the table reports information like 1st: 64 bytes from IP_ADDRESS thenthe WDS bridge is effectively working.

b. If the Resultsection of the table reports Destination Host Unreachable, then an error hasoccurred during the setup.

WDS is a complicated bridging system with a lot of variables. If there are still problems with WDSconfiguration on the network, then please contact Buffalo Tech Support (see pages 78 and 79).

10BaseT: 802.3 based Ethernet network that uses Bandwidth: The transmission capacity of a com-

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UTP (Unshielded twisted pair) cable and a startopology. 10 Mbps data tansmission speed.

100BaseT:802.3 based Ethernet network that usesUTP (Unshielded twisted pair) cable and a startopology. 100 Mbps data tansmission speed.

1000BaseT: 802.3 based Ethernet network thatuses UTP (Unshielded twisted pair) cable anda star topology. 1000 Mbps data tansmissionspeed.

802.1x:The standard for wireless LAN authentica-tion used between an AP and a client. 802.1x withEAP will initiate key handling.

Access Point: A hardware device that acts as acommunication hub for Clients(users of wirelessdevices) to connect to a wired LAN.

Ad-Hoc Network:A network based on peer-to-

peer communication rather than a router, switch,or hub.

p yputer or a communication channel, usually statedin Megabits per second (Mbps).

Bridge:A device which forwards traffic betweennetwork segments with a common network layeraddress, based on data link layer information.

Client: A PC, workstation, or other device thatconnects to a network wirelessly through anAc-cess Point.

Cross-Over Cable:A UTP cable that has its trans-

mit and receive pair crossed to allow communica-tions between two devices.

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

Destination Address: The address portion ofa packet that identifies the intended recipientstation.

DHCP (Dynamic Host Configuration Protocol): File and Print Sharing:A Microsoft application

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( y g )Based on BOOTP, it uses a pool of IP addresses,which it assigns to each device connected to it, andretrieves the address when the device becomes

dormant for a period of time.DNS (Domain Name System): System used tomap readable machine names into IP addresses.

Driver: Software that interfaces a computer witha specific hardware device.

Dynamic IP Address: An IP address that is auto-

matically assigned to a client station in a TCP/IPnetwork, typically by a DHCP server.

Ethernet:The most widely used architecture forLocal Area Networks (LANs). It is a shared-medianetwork architecture. The IEEE 802.3 standarddetails its functionality.

Ethernet cable:A wire similar to telephone cable

that carries signals between Ethernet devices. Itis designed to connect a single devices NIC to arouter, switch, or hub. See also Crossover cable.

g ppthat allows computers on a network to share filesand printers.

Firmware:Computer programming instructionsthat are stored in a read-only memory unit ratherthan being implemented through software.

Frame: A fixed block of data, transmitted as asingle entity. Also referred to as a packet.

Full-Duplex: To transmit on the same channel inboth directions simultaneously.

Half-duplex:To transmit on the same channel inboth directions, one direction at a time.

Hub: A device which allows connection of com-puters and other devices to form a LAN.

IEEE (Institute of Electrical and Electronics Engi-neers):The professional organization which pro-motes development of electronics technology.

IP (Internet Protocol) Address: A unique 32-bi-nary-digit number that identifies each sender orreceiver of information sent in packets.

Infrastructure:A wireless network or other small MDI/X (Media Dependent Interface/Cross-over):

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network in which the wireless network devicesare made a part of the network through the Ac-cess Point.

ISP (Internet Service Provider):A company thatprovides access to the Internet and other relatedservices.

IV (Initialization Vector): The header section ofan encrypted message packet.

LAN (Local Area Network):A group of computers

and peripheral devices connected to shareresources.

LED (Light Emitting Diode): The lights on ahardware device representing the activity throughthe ports.

MAC (Medium Access Control) Address: Theunique number that distinguishes every network

interface card.Mbps (Mega Bits Per Second): A measurementof millions of bits per second.

pPort on a network hub or switch that crossesthe incoming transmit lines with the outgoingreceive lines.

MHz (MegaHertz): One million cycles persecond.

NAT (Network Address Translation): Aninternet standard that enables a LAN to use oneset of IP addresses for internal traffic and a secondset for external traffic.

NIC (Network Interface Card): An expansioncard connected to a computer so the computercan be connected to a network.

Packet: A block of data that is transferred as asingle unit, also called a frame or a block.

Packet Filtering: Discarding unwanted networktraffic based on its originating address or its

type.PCI (Peripheral Component Interconnect):A busthat is connected directly to the CPU.

PPPoE (Point-to-Point Protocol over Ethernet): APCMCIA (Personal Computer Memory Card

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specification for connecting users on an Ethernet line tothe Internet through a common broadband medium.

Protocol: A standard way of exchanging informationbetween computers.

RADIUS (Remote Authentication Dial In UserService): A server that issues authentication keys toclients.

RAM (Random Access Memory): Non-permanentmemory.

Repeater Hub: A device that collects, strengthensand transmits information to all connected devices,allowing the network to be extended to accommodateadditional workstations. See also Bridge.

RC4: The encryption algorithm used by WEP.

RJ-45 connector: An 8-pin connector used between atwisted pair cable and a data transmission device.

ROM (Read Only Memory): Memory hardware thatallows fast access to permanently stored data but pre-vents addition to or modification of the data.

International Association) Card: Removablemodule that adds features to a portablecomputer.

Peer-to-peer:This simple network is formed byconnecting computers directly, without use ofrouters or hubs. A crossover cableis plugged intoan Ethernet port in each computer, connectingthem directly.

Ping (Packet Internet Groper):An Internet utilityused to determine whether a particular IP address

is accessable.

Plug and Play: Hardware that, once physicallyinstalled, finishes its installation automaticallyand may immediately be used, as opposed tohardware that requires further manual configu-ration.

PoE (Power over Ethernet): A mechanism tosend DC power to a device using a CAT5 Eth-ernet cable.

Router: A device in a network that handles mes- STP (Shielded Twisted Pair):Twisted Pair cable

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sage transfer between computers. Similar to ahub,but with added functionality and efficiency.

Roaming: The ability to use a wireless devicewhile moving from one access point to anotherwithout losing the connection.

Server:Any computer that makes files or periph-eral devices available to users of the network andhas a resident Network OS.

SMTP (Simple Mail Transfer Protocol): Theprotocol used to define and deliver electronic mail(E-mail) from one location to another.

SNMP (Simple Network Management Proto-col: An application layer protocol that outlinesthe formal structure for communication amongnetwork devices.

Static IP Address: A permanent IP address is

assigned to a node in a TCP/IP network. Alsoknown as global IP.

wrapped in a metal sheath to provide extra protec-tion from external interfering signals.

Subnet Mask:An eight-byte address divided into4 parts separated by periods.

TCP/IP (Transmission Control Protocol/InternetProtocol:Protocol used by computers when com-municating across the Internet or Intranet.

TKIP (Temporal Key Integrity Protocol): Anencryption method replacing WEP. TKIP usesrandom IV and frequent key exchanges.

Topology: The shape of a LAN (Local Area Net-work) or other communications system.

Twisted Pair:Cable that comprises 2 or more pairof insulated wires twisted together.

UDP (User Datagram Protocol): A communi-cation method (protocol) that offers a limited

amount of service when messages are exchangedbetween computers in a network. UDP is used asan alternative to TCP/IP.

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

Wire Speed: The maximum speed at which ai k b f d i E h

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cation hierarchy.

UTP (Unshielded Twisted Pair) cable: Two ormore unshielded wires twisted together to form

a cable.

WAN (Wide Area Network): A networking sys-tem covering a wide geographical area.

WEP (Wired Equivalent Privacy): A securityprotocol for wireless local area networks definedin the 802.11b standard, using a 64 bit or 128 bitkey. WEP was designed to provide the same levelof security as that of a wired LAN. However, ithas been found that WEP is not as secure as oncebelieved.

Web Browser: A software program that allowsviewing of web pages.

Wi-Fi (Wireless Fidelity): An organization that

tests and assures interoperability among WLANdevices.

given packet can be transferred using Ethernetand Fast Ethernet standard specifications.

WLAN (Wireless LAN): A LAN topology using

wireless devices.

VPN (Virtual Private Network): A securitymethod to connect remote LAN users to a corpo-rate LAN system.

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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 protectionagainst 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, maycause harmful interference to radio communications. However, there is no guarantee that interferencewill not occur in a particular installation. If this equipment does cause harmful interference to radioor television reception, which can be determined by turning the equipment off and on, the user isencouraged 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 interferencereceived, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance couldvoid the users authority to operate this equipment.

Thi i li i h FCC di i li i f h f ll d i

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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 WHR-G54S is limited in CH1~11 by specified firmware controlled in USA.

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 withelectrical equipment. All guidelines of this manual and of the computer manufacturer must thereforebe allowed at all times to ensure the safe use of the equipment.

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 UnitedKingdom.The ETSI version of this device is also authorized for use in EFTA member states Iceland, Liechtenstein,Norway and Switzerland.

None.

(Melco Inc.) products come with a two-year limited warranty from the date

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of purchase. Buffalo Technology (Melco Inc.) warrants to the original purchaser the product; goodoperating 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 subjectedto misuse, abuse, or non-Buffalo Technology/(Melco Inc.) authorized alteration, modifications orrepair.

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

Under no circumstances shall Buffalo Technology/(Melco Inc.) be liable in any way to the user fordamages, including any lost profits, lost savings or other incidental or consequential damages arisingout 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 fromdirect, 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.)

Buffalo Technology (USA), Inc.4030 W t B k L S it 120

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4030 West Braker Lane, Suite 120Austin, TX 78759-5319

Monday through Friday8:30am-5:30pm CSTDirect:512-794-8533 | Toll-free:800-456-9799 | Fax:512-794-8520 | Email: sales@buffalotech.com

North American Technical Support by phone is available 24 hours a day, 7 days a week. (USA andCanada).Toll-free: (866) 752-6210 | Email:info@buffalotech.com

Buffalo Technology (Europe), Inc.176 Buckingham Avenue

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176 Buckingham Avenue,Slough, Berkshire, SL1 4RDUnited Kingdom

Email: sales@buffalo-technology.com

Technical Support in Europe is available between the hours of 9am-6pm (GMT) Monday to Thursdayand 9am-4:30pm (GMT) Friday for this product. Customers in Europe can obtain Technical Supportusing the following information:

E-mail: helpdesk@buffalo-technology.ie| Web: www.buffalo-technology.com

* When operating in High-Speed Mode, this Wi-Fi device achieves an actual

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