FCC ID: FDI-04600264-0 802.11g 54Mbps Wireless Router

User Manual High Speed Wireless Broadband Router WHR-G54S www.buffalotech.com Rev A Table of Contents Introduction . 05 Installation / Setup . 10 Internal Antennas. 12 Standard Settings . 13 AOSS . 22 Advanced Setup . 25 LAN Settings . 25 Wireless Settings . 25 Wireless LAN Security . 27 LAN Port . 30 DHCP Server . 31 Wireless MAC Filter . 34 Wireless Bridge (WDS) . 36 WAN Settings . 38 WAN Port . 38 WAN Network . 41 2 Table of Contents Network Settings. 42 Router Setup . 42 Address Translation . 44 Packet Filter . 47 Intrusion Detector . 52 UPnP . 54 Management . 55 System Information . 55 Change Password . 56 Time Setup . 57 Packet Trafc Information . 58 Client Monitor . 59 Ping Test . 60 Log Information . 61 3 Table of Contents Syslog Transfer . 62 Save/Restore Settings . 63 Reboot/Reload Settings . 64 Firmware Update . 65 AOSS . 66 File & Printer Sharing / Audio/Video Playback . 68 Specications . 69 Troubleshooting . 72 Glossary . 80 FCC/CE Information . 86 Warranty Information. 91 Contact Information . 92 4 Introduction AirStation High Speed Mode Wireless Cable/DSL Router (WHR-G54S) This manual introduces you to the AirStation Cable/DSL Router, and will help you connect to your network quickly. The WHR-G54S router, is a wireless 4-port router network device that complies with the 2.4GHz IEEE 802.11g standard specication on wireless LANs. It also supports High Speed Mode technol-

ogy. The WHR-G54S supports enhanced built-in NAT/SPI rewall functions and is used as a multi-

functional router/link between wired and wireless LAN computers. Summary of the AirStation WHR-G54S features:

Wi-Fi (Wireless Fidelity) certied by the Wi-Fi Alliance as an 802.11b/g device. The AirStation will communicate with other IEEE 802.11b/g/Wi-Fi compliant wireless LAN products. Supports High Speed Mode Auto-Channel Selection Support for Wi-Fi Protected Access (WPA), TKIP, AES, and WEP. DHCP client/server function. Auto roaming, supports seamless roaming over multiple channels. Packet Filtering for eliminating unwanted communications. SOHO/SMB routing and rewall functions provide a safer private networking environment, includ-

ing support for MS NetMeeting and MSN-Messenger. Additional SPI Firewall Functions - DMZ, intrusion detection and notication Syslog transmits some or all system activities to a central Syslog server. 5 Introduction Extended range WDS (Wireless Distribution System). Auto Media Dependent Interface/Crossover (MDI/X) port, allows connection by standard and crossover CAT5 cables. Supports Universal Plug and Play (UPnP). Buffalos AOSS System for easy, secure wireless client conguration. Enhanced security features:

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

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

- Dynamic packet ltering.

- WPA, TKIP, AES, and WEP.

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

- PPPoE support

- WDS support Buffalos easy web interface conguration Broadband router static and dynamic routing methods between WAN and LAN based on updated routing tables. An economical way to bridge multiple networks. Buffalos AOSS System for easy, secure wireless client conguration. 6 Introduction Home Networking 1 Buffalo AirStation wireless access points enable sharing broadband by simply connecting the AirStation to a DSL or Cable modem to:

Share les and printers Access and share the Internet Share media les System Requirements Broadband (High-Speed) Internet connection or existing Local area connection Any Wi-Fi (wireless) compatible computer with a Web Browser Internet Explorer or Netscape 4.5 or later. AirStation WHR-G54S Package Contents The AirStation WHR-G54S package consists of the following items. 1. WHR-G54S Base Station and antenna 2. AC adapter and Power cable 3. CAT5 LAN cable 4. Utility CD with Manual 5. Quick Setup Guides 6. Warranty Statement 7. Base Plate 7 Introduction Product Views Power - Lit when the device is powered on. Wireless - Lit when the wireless radio is on. Flashes when wireless trafc is present. Bridge - Lit when the Bridge mode is running. Off when the Router mode is running. WAN - Lit when connection to Cable/DSL modem is present. Flashes when internet trafc is present. Diag - Flashes red when performing diagnostic functions. AOSS - Flashes when in AOSS mode, solid when AOSS encryption has been set. Ethernet - 1, 2, 3, or 4 lit when ethernet clients are connected. Flashes when ethernet trafc is present. 8 Introduction About the AirStation CD The AirStation does not require any software to be installed on your computer for conguration. The AirStation CD contains product documentation and Buffalos Client Manager which provides AOSS functionality for any Buffalo client card or any Intel Centrino notebook. It is the policy of Buffalo Technology to improve products as new technology, components, software and rmware become available. Please consult the AirStation wireless website (http://www.buffalotech.com) to download and install the latest rmware for your product. Follow these simple steps to connect the AirStation to your Broadband Internet connection allowing you to combine and share wired and wireless computers and printers with the high-speed internet connection. 9 Installation / Setup 1. Power down the Cable or DSL modem and the computer which will be used to congure the AirStation router. 2. Plug the Cable or DSLs LAN Ethernet cable into the AirStations WAN port. Initially, you may need to unplug this cable from your computer, hub or other router. 3. Plug the provided Ethernet cable into a LAN port on the AirStation and plug the other end into your computer Ethernet adapters (NIC) port. If you plan to initially congure the AirStation via a wireless connection, (not recommended), you may skip this step. 4. Power on your cable or DSL modem, wait one full minute, Power on the AirStation router, wait an-

other full minute and then power on the computer which will be used to congure the AirStation. If the red DIAG light on the AirStation is lit or ashing after several minutes of being powered on, please consult Buffalo Technical Support. 10 Installation / Setup Introduction Conguring the AirStation using a standard web browser requires basic wireless conguration knowledge. Setup includes manual wireless conguration and basic administrative management. Setup Preparation Make note of the AirStations wired MAC address (found on the underside of the WHR-G54S). It is also recommended you record any other broadband ISP information such as global IP address, subnet mask address, default gateway address, DNS server address and PPPoE parameters. Setup Overview Buffalo recommends using a wired connection, meaning your computer is physically connected to the AirStation with a CAT5 straight cable plugged into one of the four LAN ports This type of setup will eliminate possible setup problems due to any issues with the wireless adapter on the computer being used to congure the AirStation. A Web browser version 4.5 or later can be used to congure the AirStation. Advanced settings for security, ltering and other features will be explained in later sections. 11 Internal Antennas The WHR-G54S has one hoip antennas. This setup is ideal be-

cause it allows for proper antenna polarization with both desktop and notebook style wireless adapter antennas. 12 Standard Settings Open the Setup Screen Connect the WHR-G54S according to the wiring instructions in Section 2. The WHR-G54S has a default LAN IP address of 192.168.11.1 and Subnet Mask of 255.255.255.0. Initial Settings Login Note: The computer used to con gure the AirStation should be set to obtain an IP address automatically using a DHCP server. The Quick Setup Guide enclosed with the product contains detailed instruc-

tions on how to con gure your computer for initial con guration. enter a User ID and Password. On the computer used to con gure the AirStation, launch a Web Browser 4.5 or later.

- Enter 192.168.11.1 into the URL eld.

- A window will open prompting you to Enter root as the User ID and leave the password eld blank. Note: These are the factory default settings 13 Initial Settings Screen Initial DSL button Screen Standard Settings Enter ISP information Click the appropriate button to select the type of broadband access. (Users more experienced in networking may choose to select the Ad-

vanced button and skip to Section 4.) For supplementary tools, use the tabs along the top of the screen. DSL Button Select the appropriate connection method. Automatic IP Assignment by ISP

- The DHCP server of the ISP assigns an IP ad-

dress automatically. 14 Manual DSL IP Settings Screen DSL PPPoE Settings Screen Standard Settings Manual IP Address Setup

- Enter the IP Address given by the ISP.

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

- Enter the PPPoE information provided by the ISP. 15 Initial CATV Settings Screen Manual IP Address Settings Standard Settings Cable Button Select the appropriate connection method. Automatic IP Addressing

- Select Automatic IP Assignment by ISP if your ISPs DHCP server assigns an IP address automatically. Manual IP Address Setup

- Select Enter IP Address Manually if the ISP requires use of a static IP address. 16 Auto IP/

Manual DNS Settings Line Test Tab Standard Settings Automatic IP Address - Manual DNS Server Con guration

- Select IP address is acquired automatically but DNS server address is entered manually if the ISPs DHCP server supplies an IP address but not DNS server addresses. Line Test Tests the connection to the Internet. 17 Security Tab Standard Settings Security The Security Tab offers three Simple Security Settings. Follow the in struc tions in each screen to enter Encryption Keys, MAC Address Filter-

ing and the degree of rewall security for the AirStation. 18 Standard Settings Setup Encryption on the AirStation(WEP/TKIP/AES).

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

tion. Setup the Wireless MAC Filter.

- Select Enable to use MAC lter-

ing. See Page 34 for more infor-

mation on MAC Address Filtering. Setup Basic Security.

- See Page 52 for more information on Intrusion Detector. 19 Ap pli ca tion Ap pli ca tion Tab Tab Standard Settings Applications The Application Tab offers setup for special ap-

plications such as games, MS NetMeeting and MSN Messenger. Then follow the on-screen menus to con gure the AirStation for the applica-

tion. 20 Standard Settings Playing Internet Games

-Enter the ports(refer to Game documentation) the game runs on, and enter the Local IP Ad-

dress of the PC that plays the game. Using Netmeeting

-Enter the IP Address of the PC that will use Netmeeting. Using Windows (MSN)Messenger

-Refer to the on-screen help for information about Messenger. Although your AirStation will function ne using only the Standard Settings, you may wish to explore more advanced options. The Advanced Settings section explains each function in the Advanced settings area. Click the Top tab and click the Advanced button to enter the Advanced settings area. 21 AOSS AOSS (AirStation One-Touch Secure System) is a simple, one-touch setup for connecting wireless clients to an access point while setting up the most secure possible connection. Users no longer need to worry about choosing the proper security protocols, IP addresses, or SSID's. The intelligence of AOSS determines the most optimal connection and congures itself in seconds. NOTE: AOSS automatically creates a secure connection between your AOSS Access Point and client. You must have an AOSS enabled wireless client device to use the AOSS features of your AOSS Access Point/Router. Intel Centrino supports AOSS by installing Buffalo's Client Manager software. Congure your WHR-G54S internet con-

nection by referring to the instructions in the WHR-G54S Quick Setup Guide. Once the WHR-G54S has been cong-

ured, follow the directions to install your wireless client device and its drivers if necessary. Certain wireless client adapt-

ers require client software to congure them. If your device has a Client Man-

ager, then install it as well. Standalone AOSS Device Client Manager Client Manager Software Device NOTE: If the wireless client adapter is installed on a PC, then the AOSS client manager will need to be installed as well. If your wireless client adapter is a standalone device that does not require a PC, then just power up the device. Standalone Devices: Ethernet Converters and Access Point Bridges Client Manager Devices: CardBus, USB, and PCI Adapters. 22 AOSS Now that the WHR-G54S and wireless client adapter are installed, you can use AOSS to congure them. To begin the conguration, press the AOSS button on the top of the WHR-G54S for 3-5 seconds. The orange AOSS light will begin to ash rapidly when the AOSS mode has been enabled. You can stop pressing the button at this point. NOTE: AOSS mode will stay active for a period of two minutes. This is the time-slot required to initiate AOSS on the wireless client adapter. Refer to your wireless client adapter's AOSS supplement to initiate the wireless client adapter's AOSS mode. Once the client adapter has nished communicating with the AOSS router, the orange light will stop ashing and become solid. This indicates that the AOSS process has completed and the devices are now using AOSS. It typically takes 15-60 seconds for the entire AOSS process to complete. Please refer to your wireless client adapter's supplement for the remainder of the setup. 23 AOSS Additional AOSS Information:

Only one AOSS wireless client adapter can be congured to the AOSS router at a time. Thus, the button will need to be repressed for each additional AOSS wireless client adapter that will be connected. It is not necessary to AOSS client devices that have already been congured via AOSS, unless signicant changes have been made to the wireless network. Do not attempt to congure two separate AOSS networks at the same time, as it may cause undesired congurations. If an undesired client has connected via AOSS, it can be disconnected from within the WHR-

G54S advanced conguration menus. 24 LAN Settings Wireless Settings Advanced Settings Set up LAN connections. Wireless Settings Wireless Mode - Enable or disable wireless LAN computer communication. SSID - Allows administrator to alter the SSID of the AirStation. To communicate with a speci c AP only, the APs SSID must be entered in the client comput-

er. The client computer looks for the speci c AP (or SSID) for wireless communication. Use up to 32 al pha nu mer ic charac-

ters for the SSID (case sensitive). By default the SSID is the LAN Mac address of the AirStation. Note: Roaming - When multiple AirStations have an identical SSID, WEP key (if WEP is used),

(and channel in WDS mode) , client computers may Roam between the AirStations. Wireless Channel - Select the channel used for wireless communication. There are 11 overlap-

ping channels. Channels 1, 6 and 11 are non-overlapping. The Auto-Channel option is recom-

mended, as it constantly assesses the best available channel for the AirStation to operate on. 25 Advanced Settings If there are multiple APs in close proximity using the same channel, there may be interference. In this case, change to a non-overlapping channel. Privacy Separator - Enable or disable communication between wireless clients. If you choose to use this feature, every wireless client that is associated to the AirStation will not be able to communicate with any other wireless clients. Note: If this function is used, wired clients can still communicate with wireless clients. BSS (Basic Service Set) Basic Rate Set - The transmission data rates offered by the AirStation. It is recommended to use the Default selection to accomidate 802.11 and 802.11b rate sets. It is NOT recom-

mended to use the All selection, as some devices may not understand all of the rate sets offered by the AirStation. Frame Bursting Mode - This function increases 802.11g communication throughput by transferring pack-

ets more efciently. The following conditions affect this function:

The wireless LAN client adapter must support Frame Bursting (and it must be enabled). If the wireless LAN client adapter does not support Frame Bursting, or Frame Bursting is not enabled, then it will operate at non-Frame Bursting speeds. High Speed Mode - This function further increases 802.11g communication. The following conditions af-

fect this function:

The wireless LAN client adapter must support High Speed Mode (and it must be enabled). If the wire-

less LAN client adapter does not support High Speed Mode, or it is not enabled, then it will operate at regular 802.11g speeds. It is recommended to leave High Speed Mode enabled as it can only help throughput, not hurt it. 26 Advanced Settings 802.11g Protection - This enables protection mechanisms for when 802.11b clients join the net-

work. It enables CTS (Clear-to-Send) DTIM Period - An access point transmits beacon signals to nearby clients at a preset interval. This parameter sets the beacon transmission interval time (1-255 seconds). Se lec tion of a larger num-

ber may conserve energy for the client computer (when client power management is enabled), but may delay wireless communication. The default value of 1 is recommended. Wireless Output Power - Con gure output power of the AirStation. Decrease wireless output power to shrink the wireless communication range. The default setting of 100% is recommended unless decreased range is desired Wireless Wireless Security Security Settings Settings Wireless LAN Security Broadcast SSID - Enable or Dis-

able the SSID (SSID) from being broadcasted. If denied, the AirStation will not be found unless the speci c AirStations SSID is entered in the client computer manually. Data Encryption - Disable to have no encryption of the wireless data. This will make accessing the AirStation and the network very easy. It is im-

27 Advanced Settings portant to note, that without encryption it is easy for strangers to connect to your network, especially if the AirStation is broadcasting its SSID. Select the type of data encryption:

Disabled - Disable data encryption.

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

- TKIP - Uses TKIP (Temporal Key Integrity Protocol) for data encryption. The encryption key is renewed every Re-key interval when TKIP is selected. WEP - When the WEP (Wired Equivalent Protection) encryption standard is implemented into a wireless network, a WEP key is used between the client and access point to successfully encrypt, transmit and decrypt data. For this reason, the same WEP key must be used for communication between the client and the AirStation. An access point and client may both carry multiple WEP keys. It is necessary for not only the WEP keys to match, but also the WEP keys order. If a wireless client cannot support multiple WEP keys, the AirStations must be congured to transmit key number 1 for a connection to take place. Examples of WEP key:

64-bit ASCII: 5 digits of alphanumeric characters, ab34Y 128-bit ASCII: 13 digits of alphanumeric characters, 123456abcdef7 Note: ASCII WEP keys are case sensitive. 64-bit HEX: 10 digits, using characters 0-9 and a-f, 00234ABCDE 28 Advanced Settings 128-bit HEX: 26 digits, using characters 0-9 and a-f, 20123456789abcdeabcdeabcde TKIP - TKIP (Temporal Key Integrity Protocol) is a WEP expanded encryption technique. TKIP has greatly improved WEPs weaknesses by rotating secret keys between every packet. TKIP uses WPA-PSK (pre-Shared Key). Characteristics:

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

- The Initialization Vector is randomized.

- Uses a different RC4 key for every packet. AES - AES further improves TKIP by using AES (Advanced Encryption Standard) encryption method. Due to its hardware co-processor, AES uses the toughest encryption without sacricing throughput like WEP and TKIP. TKIP & AES require an 8 to 63 character passphrase in ASCII or 64 digits hexadecimal key. Example 1: [ airstation -WPA-PSK ]

Example 2: [0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef]

WPA Rekey Interval - When TKIP is selected, the encryption key is renewed at this interval. This interval is in seconds; the range of acceptable values is 0-3600. If 0 is entered, the key is never renewed. Note: The lower the rekey interval, the more often a rekey occurs. Setting a low rekey interval may affect performance negatively. 29 LAN Port LAN Port Settings Settings Advanced Settings LAN Port Set the LAN side Ethernet settings. LAN Side IP Address - Allows ad min is tra tor to specify a static IP and Subnet Mask for the LAN side of the AirStation. Note: If the AirStations IP address is changed, the con-

guring computers IP must be changed to the same range to continue con guration. If the LAN IP is changed, restart the AirStation. (Section 4.4.10). If the IP address is changed, then the DHCP scope must be changed to match. DHCP Server Function - Allows administrator to enable/disable the DHCP server function for the AirStation LAN side. Select Use to enable and Do not use to disable the function. Once Use is selected, the assigned IP address range can be speci ed. Enter the starting LAN IP address and total number of computers the DHCP server can accomidate. Note: If there is another DHCP server on the network, one either must be disabled or the IP range must be changed to avoid con icts derived from overlapping DHCP scopes. 30 Advanced Settings DHCP Server DHCP Server Settings Settings DHCP Server Allows a more advanced con guration of the DHCP server functions. DHCP Server Settings -

Allows ad min is tra tor to enable/

disable the DHCP server function for the AirStation LAN side. Select Use to enable or Do not use to disable this function. If the DHCP service is enabled, wireless and wired clients may receive IP addresses and other network information from the AirStation. If the DHCP server is turned off, all client PCs must have unique, static IP addresses and valid network settings manually entered. Check with your LAN administrator for static IP information. DHCP IP Address Pool - Sets the beginning address and range of addresses to be assigned by the AirStations DHCP server function. Select up to 253 consecutive addresses (nodes). The IPs to be excluded from the range spec i ca tion should be entered in the speci ed eld. 31 Advanced Settings Lease Period - Species the time in hours (1-999) an assigned IP address is valid. If the client computer does not request a renewal of IP address before the lease period expires, the AirStation can issue the IP to another client computer. Default Gateway - Allows administrator to use the Default Gateway address (the AirStations IP address), assign a specic Gateway address, or block clients from Gateway notication. DNS Server - Allows administrator to use the default DNS address (the AirStations IP address), assign specic DNS addresses, or block clients from DNS address notication. WINS Server - Allows administrator to use a WINS address. Select auto assignment of the IP ad-

dress, enter a specic WINS IP address, or block clients from the WINS address notication. Domain Name - Allows administrator to use an assigned domain name, assign a specic domain name, or block clients from domain name notication. Domain names will be sent to LAN comput-

ers when an IP address is assigned. Enter a maximum of 64 alphanumeric characters. 32 Manual IP and MAC Address Assignment Settings Advanced Settings Manual As sign ment - Allows administrator to add additional leased IP addresses tied to a speci c MAC address. When a speci c MAC address connects to the AP, the IP address speci-

ed will be given to that client. Display/Delete lease informa-

tion - List of IP addresses, MAC addresses, lease periods and status is displayed. 33 Wireless MAC Filter Advanced Settings Wireless MAC Filter Enforce MAC Filtering - Select Enable to restrict wireless connections to the registered adapters in the list. Select Disable to disable MAC address ltering. Press the Apply button to enter the MAC Address registration menus. This is where MAC Addresses can be assigned and deleted. 34 Register for Allowable PCs MAC Address Advanced Settings Registration for MAC Ad-

dresses - MAC access restriction set up in LAN. Input the MAC addresses that are allowed to communicate with the AirStation. MAC address list - Displays a table list of all MAC addresses allowed to communicate with the AirStation. 35 Wireless Bridge (WDS) Settings Advanced Settings Wireless Bridge (WDS) The Wireless Distribution System supports peer-to-peer AP communication. Wireless Bridging (WDS)-

Select Enable to allow Bridge

(WDS) mode between AirSta-

tions or Disable to block com-

munication between AirSta-

tions. Wireless Bridge (WDS) Dedi-

cated Mode - Select Enable to restrict wireless computer com-

munication with the AirStation. In dedicated mode wireless clients CANNOT connect to WDS AirStations. Note: All AirStations must support WDS and be on the same channel. Do not use Auto-Channel when using WDS. For roaming support, use the same SSID on all devices. Add a WDS Partner: Allows administrator to input the wireless MAC address of AirStations for Bridge (WDS) communication. The wireless MAC address is found in the Management section =>

System Information, labeled Wireless MAC Address. 36 Wireless Bridge (WDS) Settings Advanced Settings To enable WDS, set the Wire-

less Bridge (WDS) function to Enable. Enter the Wireless MAC address of the AirStation to communicate with in the form of two characters separated by a colon and click Add. MAC Address Ex:

00:00:00:00:00:00 Up to six AirStation MAC ad-

dresses may be registered. Click Apply under Wireless Bridge (WDS) settings when the wireless Mac addresses AirStation are entered. Repeat this process on every other AirStation used in Bridge (WDS) mode. 37 Advanced Settings WAN port WAN port Setup Setup WAN Settings WAN Port Wired WAN Performance

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

- Set the AirStation MAC ad-

dress to be used for WAN com mu ni ca tion. Some ISPs may require you to set the MAC Address of WAN to be the same MAC address of your cable or DSL modem. WAN IP Address - Allows ad-

ministrator to select DHCP server, PPPoE, or manual setting for the WAN port of the AirStation. Auto IP assignment from DHCP server - acquire the IP address automatically from the DHCP server. Use PPPoE client - If selected, the in for ma tion listed below must be entered. Manual setting - Enter the appropriate IP address and subnet mask. 38 Advanced Settings PPPoE Setting (for enabling PPPoE Client function) - Allows administrator to use PPPoE as specied by the ISP. The following parameters should be entered for PPPoE Settings:

Name of Connection - Enter the name of your connection. User Name - Enter the user name (up to 64 alphanumeric characters) for PPPoE authorization. Password - Enter the password provided by your ISP (up to 64 alphanumeric characters). Reenter the password in the Conrmation box. Service Name - Enter the PPPoE service name (up to 64 alphanumeric characters). If your ISP doesnt require a service name, then leave it blank. Connection Type - Select from:

- Continuous Connection - connects immediately after setting and never disconnects.

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

- Manual - Disables Automatic Connection. Connects to the Internet using the connect button on the initial settings page. The Enter New Connection button will not appear until Use PPPoE Client is set. Disconnection Time - Specify the number of minutes (0-1440) before automatic disconnect is performed. If 0 is entered, the disconnect function is disabled. If Continuous Connection is selected, the timer is disabled. 39 PPPoE Settings Screen Advanced Settings Authorization - Authorization method for accessing the ISPs PPPoE server. If unknown, select Auto authorization. MTU (Maximum Transmit Unit) Size - Maximum Transmit Unit (578-1492) when using PPPoE. MRU (Maximum Receive Unit) Size - Maximum Receive Unit (578-1492) when using PPPoE. Keep Alive - Enables the PPPoE client to send a Link Control Protocol (LCP) echo request to the PPPoE server once per minute. If there is no reply within six minutes, the client disconnects. Set to Disable if frequent disconnection occurs. Activation - Enable/disable registered connection settings. If disabled, the connection is not per-

mitted. 40 Advanced Settings WAN Network Network of Network of WAN WAN WAN side (Internet) parameters. These settings are generally not required if your ISP is providing DHCP services. In this case these elds can be left blank if desired. Host Name - Enter the host name as desired. Default Gateway - A default gateway IP should be assigned to the AirStation. If unknown, leave blank. If Auto IP as sign ment from DHCP Server is selected in the WAN Port section, a gateway IP is assigned automatically, provided the DHCP server is set to provide one. DNS Server Address - Enter the primary and secondary DNS address(es) of the server to be used by the AirStation for DNS resolution. Remote Management Port Number - Set a speci c port number when remote setup of the AirStation is planned. Using port 80 allows the AirStation to be accessed from the internet by con-

necting to http://xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is your WAN IP address). You will need to con gure the NAT (Adress Translation Settings) to forward PORT 80 back to the AirStation. Block Ping from WAN - Allows a PING test from the WAN/Internet. Select Disable or Enable. 41 Routing Setup Advanced Settings Network Settings Routing Setup RIP transmission to WAN - Allows RIP transmission or None (no RIP) to WAN RIP reception from WAN - Allows RIP reception or None (no RIP) from WAN RIP transmission to LAN - Allows RIP transmission or None (no RIP) to LAN RIP reception from LAN - Allows RIP reception or None (no RIP) from LAN RIP transmission to WAN - Allows RIP transmission or None (no RIP) to WAN Display Routing Table - Allows administrator to view and delete routing information. 42 Add Routing Table Entry

(1-15) to be passed before the packet reaches its destination. Advanced Settings Click Add Route to Add a Routing Table Entry Destination address - Net-

work IP address and subnet mask. Gateway - Address through which the packet passes be-

fore it reaches the des ti na tion address. Metric - Number of routers 43 Address Address Translation Translation Setup Setup Advanced Settings Address Translation Address Translation - Select Enable or Disable. Address Translation must be enabled for client computers to con-

nect to the Internet. Selecting Enable enables the following functions:

IP Masquerade - When the LAN computer connects to the WAN side, the IP address of LAN computer is dynamically translated to become the WAN IP address of the AirStation. Multiple LAN computers can share one WAN IP address to access the Internet. Static IP address translation -When the WAN requests connection to the LAN, the WAN IP address of the AirStation is translated into the IP address of the LAN computer. Log Output - Set Log Output to log discarded packets. Otherwise, a dropped packed is not logged. IPSec PassThrough - Enables the AirStations ability to pass IPSec VPN data. 44 Advanced Settings IP Address of DMZ - Allows administrator to set the DMZ (De-Militarized Zone) address. Incoming packets containing no recognizable destination port information will be re di rect ed to the DMZs IP address. Display/Delete NAT Table - Allows ad min is tra tor to delete NAT tables. Add NAT Table Address Address Translation Translation Setup Setup Group - Specify a group (up to 16 characters) that the NAT rule belongs. Groups are simply used to visually organize the NAT table for the administrator. It is recommended to name the group after the protocol that is being setup

(e.g. Group Name FTP when setting up ad-

dress translation for FTP) Click New Group to create new group or select an existing group to add a NAT rule to it. WAN Side IP Address - Select AirStations WAN Side IP Address or Manual IP Ad-

dress. For Manual setting, enter the IP ad-

dress used by the WAN computer to connect to the local computer. dress used by the WAN computer to connect to the local computer. AirStations IP Address of WAN should be used unless you have multiple WAN side IP addresses. 45 Advanced Settings Some network applications (online games or streaming software) require adding Address Transla-

tion tables; consult the softwares documentation for port information). Protocol (WAN):

All - Selects all IP protocols. ICMP - Network Diagnostic Protocol (1). Manual - Specify the protocol number (0-65535). TCP/UDP - Enter port number for TCP or UDP protocols. If both TCP and UDP are required, then separate entries are required. LAN IP Address - Select Manual IP Address and enter the destination IP address of the LAN computer; or select AirStations LAN IP Address. Protocol (LAN) - Enter the destination port number. If left blank, the packets are transferred to the same port number as the source port number. Typically the destination port should be left the same as the source port. Click Add to NAT table. This will add the information to the NAT table. Once you have gone through this process for every desired translation, you will need to press the Apply button on the top of the screen to start the translating. 46 Packet Packet Filter Filter Setup Setup Advanced Settings Packet Filter Log Output - Select Output to activate the packet lter log. Packet Filter Information Basic Rule - Click add/delete basic rules. Place a check mark next to the basic rule to enable:

Deny setup from wireless LAN - Prohibits administration from a wireless computer. Deny setup from wired LAN

- Prohibits administration from a wired computer. Deny setup via wireless bridge access point - Prohibits a personal computer connected to another AirStation in a wireless bridge. Prohibit NBT and Microsoft-DS routing - Prevent unexpected external access via Microsoft network sharing. This prohibits computers on the internet from accessing shared resources on Windows machines. It is recommended to leave this lter activated. Reject the IDENT request - The AirStation sends reject packets if it receives an IDENT request. 47 Basic Filter Basic Filter Setting Setting Advanced Settings Use this lter when the commu-

Use this lter when the commu-

nication speed goes down using nication speed goes down using a network application like E-mail, a network application like E-mail, FTP and WEB. FTP and WEB.

* If IDENT requests are for-

* If IDENT requests are for-

warded to a LAN side client by warded to a LAN side client by address translation setting (DMZ address translation setting (DMZ or TCP port :113 ), this basic rule or TCP port :113 ), this basic rule is ignored. is ignored. 48 IP Filter IP Filter setting setting Advanced Settings IP Filter Settings - Limits the type of packets allowed to pass between the WAN and LAN. The maximum number of rules is 32. Operation - Packets from WAN (or LAN), select ignored, rejected, or accepted. Select the operation to be performed on the packets. Packets from:

WAN side - packets coming from the WAN side will be ltered. WAN side - packets coming from the WAN side will be ltered. LAN side - packets from the LAN side will be ltered. Are :

Ignored - Stop the packet and do not route it. Rejected - Return the rejected packet to the point of origin. Accepted - Pass the packet through. Destination IP Address - The IP address to be ltered. Source IP Address - The IP address designated for ltering. If all IP addresses must be ltered, leave this box blank. Warning: If administrator selects packet from LAN is Ignored or Rejected, the ad min is tra tor will 49 Advanced Settings no longer have access to the AirStation con guration screens. This function prohibits setup from a wireless or wired computer. The AirStation can be returned to the factory default settings by holding down the INIT button on the back of the unit for ve seconds or until the red DIAG light becomes solid. Protocol - Mark and select a speci c protocol. Select from all protocols, ICMP, arbitrary protocol number and TCP/UDP protocol number. All - Selects all IP protocols. ICMP - Network Diagnostic Protocol (1). Manual - Enter protocol number (0-65535). TCP/UDP Destination Port - Select TCP or UDP, then enter port number. Priority - Specify the priority of an item. The smaller the number, the higher the priority. Add MAC Filter setting MAC Filter - Click Enter MAC lter to enter MAC address. Source MAC address -The MAC address of the source of the packets that will be ltered may be set. Click Add rule when complete. 50 Advanced Settings Note: If conguring from a wireless computer, add your MAC address to the list of authorized wireless LAN PCs. The MAC address must be in two-digit groups separated by colons. Example: 00:40:26:00:11:22 Click Apply when settings are complete. 51 Intrusion Detector Setup Advanced Settings Intrusion Detector The Intrusion Detector watch guards and prevents unauthorized access from the WAN (Internet) This function also records information on unauthorized access attempts Intrusion Detector - Select Do not use, Use or Use (Apply Packet lter setting for Intrusion Detector set-

ting). IP Spoo ng - Check Block to prevent IP spoo ng. Threshold Value - Enter the number

(1-999) of suspect packets before the noti cation occurs. Notify by email Email Alert Noti cation - Enter des ti na tion email address Sender email address - Enter the email address that will send the email. This is the name that will appear as the sender when the email is read. This email can be made up (e.g. DETECTOR@AIRSTATION 52 Sender email server address - Enter the SMTP Server address. Receiving email server authorization - Enter the POP3 Server address, User name and Password. This is only required if your SMTP server requires POP verication before it allows email to be sent. Consult your ISP or mail server support for more information. Send test - Click Send to test notication; this will also save and commit the entries. Pop-up notication - Pop-up window alert of unwanted activity. Client Manager must be installed and running on a client machine to use this feature. Destination IP address - Enter the IP address to be notied. The LAN computer with this IP address must have Buffalos Client Manager software installed and running for the verication to occur. If the machine is off the verication will not be received, and the AirStation will NOT resend information. Intrusion Detector information - displays log activity detected by the Intrusion Detector service. 53 UPnP Setting Advanced Settings UPnP Select Enable to enable UPnP (Universal Plug and Play). When a computer with UPnP support connects to the AirStation, that computer auto-

matically receives con guration information from the AirStation. 54 Advanced Settings System Information Management - System Information System information of the AirStation is obtained here. Model - Displays model and rmware version AirStation Name - Displays AirStation host name DHCP Server - Displays On or Off Wireless Settings - Displays the wireless LAN settings such as wireless MAC address and wireless rmware. The wireless MAC address is required for setting up WDS with other access points. This is the best place to determine the wireless MAC address. If High Speed mode is enabled, then the [AfterBurner] color will be red or grey. When it is red, High Speed mode is running. When it is grey, High Speed mode is enabled but not running due to a client being connected at 54 Mbps or another access point running on the same channel. LAN Settings - Displays the AirStation LAN settings . WAN Settings - Displays the AirStation WAN settings and PPTP client settings if available. Default Gateway - Displays the default gateway settings. WAN side IP address auto acquisition - This is the method to acquire the IP address from the WAN (Internet) side DHCP server. Press Release to release current DHCP WAN information. Press 55 Advanced Settings Renew to obtain WAN information from the DHCP server. NOTE: If a manual IP is assigned to the WAN port, this feature is not displayed. Name and Name and Password Password Setup Setup Change Password AirStation name - When us-

ing multiple AirStations, select a unique name to make it easier to identify each AirStation through the AirStation Manager utility. This utility is seldomly used, thus, the AirStation name value has little value. Administrator Name - root, can-

not be changed Administrator Password -

Allows the administrator to enter an administrator password to re-

strict access to the setting screens. 56 Time setup Time setup - Enter the current date and time, and click Set. Time Setup Screen Advanced Settings NTP - Network Time Protocol. Select Use or Do not use. Note: If NTP is used, time is set au to mat i cal ly. NTP Server Address - Enter the NTP Server Address Update Time - Enter the time interval (in hours) for the time check frequency Time Zone - Select local time zone Click Apply. 57 Packet Traf-

c Informa-

tion Advanced Settings Packet Traf c Information Displays number of packets sent and received for:

Wired WAN Wired LAN Wireless LAN Click Refresh to start update the transfer packet log. 58 Client Client Monitor Monitor Screen Screen Advanced Settings Client Monitor Displays the wired and wireless clients (computers) that are accessing the AirStation. MAC address - Shows the clients MAC address. IP Address and Medium -

Shows the IP address that is assigned to the client from the DHCP server. The network medium is indicated as wireless or wired depending on how the client is accessing the AirStation. Note: The Client Monitor only shows clients that have received an IP address from the AirStations DHCP server. Clients that have static IP addresses will not appear in the Client Monitor. 59 PING Test PING Test Advanced Settings PING Test Performs a PING test from the AirStation to a LAN or WAN address. Enter the target IP address and click OK (e.g. 192.168.11.2

- OR- www.buffalotech.com) If the test results in an error, then verify you correctly inputted the address and check your connections. 60 Log Information Screen Advanced Settings Log Information Display log info level - Select Error and/or Notify to spec-

ify the types of reports to be logged by the AirStation. Display log info - Select the speci c reports to be logged. Log information - Displays recorded logs. 61 Syslog Transmitting Screen Advanced Settings Syslog Transfer Select Enable or Disable to enable or disable the AirStations ability to transmit information to a Syslog server. Syslog Server - Enter the IP address of the Syslog server. Log Information Level

- Select Error and/or Notice to specify the types of reports to be sent to the Syslog server. Log Information - Select the speci c reports to be sent to the Syslog server. Note: A server on the net-

work running a Syslog service is required for this. 62 Save/

Save/

Restore Restore Settings Settings Screen Screen Advanced Settings Save/Restore Settings Save current settings - Click Save to open the le saving dialog and save the current AirStation settings to a le. Restored saved settings

- Restores settings from a le that has been saved. Click Choose le to select the saved le and click Restore. Note: If the setting le is saved by a newer rmware than the current one, the AirStation cant restore the settings. 63 Initialization/

Reboot Advanced Settings Reboot/Reload Defaults Click Restart to reboot AirStation Click Restore to reset the AirStation to default factory settings. Note: Resetting to default factory settings will erase all settings and passwords previously entered. The AirStation will return to the condition it was in when rst purchased. 64 Firmware Firmware Update Update Advanced Settings Firmware Update Firmware File Name

- Click Browse to browse to the path and lename for the new rmware. Click Firmware Update to load rmware to the AirStation. Note: Firmware update does not erase current user settings. It does however delete all of the service information from the Network Service List;

you will need to perform a new service search after you update the rmware. Please visit the Buffalo Technology Web Page to download the latest rmwares free of charge. http://www.buffalotech.com 65 AOSS Advanced Settings AOSS Client Table - Displays the clients connected via AOSS. The Disconnect button disconnects the client from the AOSS router by using MAC Address ltering. Once disconnected, the client will still appear in the client list but will appear as disconnected. The client can then be re-enabled by pressing the Re-Enable but-

ton. A separate table exists for connected Ethernet Converters. The Refresh button updates the tables. Encryption type - This forces AOSS to use a specied type of encryption. It is recommended to not change this setting. If the setting is changed then every client that connects must have support for that encryption type. 66 AOSS AOSS Advanced Settings AOSS - Click Enable to allow the AirStation to use AOSS function. Click Disable to shut off the AOSS system. Clicking Disable will disable the AOSS button on the AirStation. Start AOSS - Click AOSS icon to begin the AOSS sequence. This starts the AOSS process just like pressing the AOSS button. Stop AOSS Process- Click AOSS icon to stop AOSS operation. Stop-

ping the AOSS function will turn off AOSS and return the router to non-

AOSS function. 67 File & Printer Sharing - Audio/Video Playback The Shared Files icon on the Network Service List gives you access to a PC or network devices shared les and printers. For Windows PCs, File and Printer sharing must be setup properly before this service will work. On Network Storage Centers like Buffalos LinkStation, the Shared Files icon should work with little to no conguration. Please consult your Windows documentation to learn more about setting up File and Printer Sharing. After clicking on the Shared Files icon you will see the available shared les and printers. Printing: To print you can right click on a shared printer and press the Con-

nect button to install it as a printer on your computer. You can also drag a document, image, or text le directly over the printer share and it will connect to the printer and print it. Thus, you can drag a Microsoft Word Document over the shared printer and it will print out on the printer in the remote loca-

tion. Files: To access les, double click on the le or folder icon just like you would on your local machine. Files can be moved, copied, and renamed normally as well. Audio/Video Playback*: To play audio or video les through shared les just double click on the audio or video le you would like to play or select multiple les and create a playlist.

* Streaming audio or video over the internet requires an internet connection sufcient enough to move the necessary amount of data. For instance, to stream a 128kbps MP3, a 150k or greater internet connection would need to be present on the remote and local side. Video often requires a faster internet connection. Most broadband DSL/Cable connections will have no problem stream-

ing audio and most video les. 68 NOTE: It may take a few moments for the Shared Files folder to open after you click on the icon. Specications Additional Information For more information, please consult:

The AirStation website at:

http://www.buffalotech.com - for frequently asked questions (FAQs) and Software Updates. WHR-G54S BASE STATION SPECIFICATIONS Physical Specications W1.10 x H5.28 x D5.67 in. (28 x 134 x 144 mm) Weight 0.6 lb. (270g) Temperature & Humidity Operation 0 to 40 C Maximum humidity 85%

Transit/Storage 0 to 40 C maximum humidity 85% (no condensation) Power Characteristics Power Supply 100-240 V AC Universal, 50/60 Hz Power Consumption About 3.4 W (Max) 69 Specications Regulatory Information Wireless communication is often subject to local radio regulations. Although AirStation wireless networking products have been designed for operation in the license-free 2.4 GHz band, local radio regulations may impose limitations on the use of wireless communication equipment. Networking Characteristics Compatibility IEEE802.11g/b Standard for Wireless LANs (High Speed Mode also Available) Wi-Fi (Wireless Fidelity) certied 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 (2,412-2,462 MHz) 11 selectable channels (3 non-overlapping) 70 Specications 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 19.05 dBm (CCK) / 16.05dBm (OFDM) Transmit Rate / Range 802.11g : 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11b : 1, 2, 5.5, 11 Mbps 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 71 Troubleshooting Common Problems:

Out of range, client cannot connect to the AirStation. Conguration mismatch, client cannot connect to the AirStation. Absence or conict with the Client Driver. Conict of another device with the AirStation hardware.

(1) 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 communica-

tion is active. DIAG LED Activity Unplug the power for three seconds. Plug the power back in to monitor the DIAG LEDs during start-up. If any symptoms match section the table below, contact to your local agency described on the Contact Information section on the bottom pages of this manual. DIAG LED Activity Table 72 Troubleshooting DIAG LED Display Status Red ash, 1 time RAM Error Red ash, 2 times Flash ROM Error Red ash, 3 times Wired LAN Error Red ash, 4 times Wireless LAN Error Red ash, 5 times Red ash, 9 times Continuous ash IP Address Conguration Error Other Errors Updating Firmware Saving Conguration Descryiption Failed to read/write internal memory Failed to read/write Flash memory Wired LAN Controller is failed Wireless LAN Controller is failed Not communicating because the WAN port and the LAN port have a same network address. Change LAN IP address setting of the WHR-G54S.

(2) LEDs Work But Client PC Cannot Connect to Network If the LEDs indicate that the network is working properly (Power LED is on, Transmit/Receive LED blinks), check the TCP/IP settings of the network. Changing Client TCP/IP Settings in Windows Consult the LAN Administrator for TCP/IP settings. To add or change the TCP/IP Settings:

1. On the Windows task bar click Start. 2. Select Settings, then Control Panel. 3. Double-click on the Network icon to view the Network Properties. 73 Troubleshooting 4. From the list of installed components, verify the TCP/IP => wireless LAN adapter protocol is installed. If the wireless adapter protocol is not yet installed, click the Add button and select the TCP/IP protocol from the list. Refer to Windows Help for more information. If the wireless adapter protocol is installed, select the protocol and click the Properties button. Verify the parameters match the settings provided by your LAN Administrator. Make changes if necessary, and click OK. 5. When or if prompted, restart your computer.

(3) Other Problems Please refer to our Technical Support (refer to Pages 92-94) for further reference materials. 74 Troubleshooting Troubleshooting WDS (Step-by-Step Instructions) The most common issue with WDS installations is using the wrong MAC address. The proper MAC Ad-

dress for the access points is the Wireless MAC Address. The best place to document this is under the System Information section of the conguration web page. For proper setup, please continue reading this document. Problem:

Communication problems with WDS (wireless bridging/repeating). Cause:

WDS is a very complex bridging system, and it is not part of the 802.11b or 802.11g standard. Restrictions:

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

not be used on the wireless network):

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

(At time of publication, the Apple Airport Extreme WILL work in WDS with Buffalo G54 access points.) 2. No single access point can communicate with more then six other access points in the wireless bridge.Good Practices:proper location. 75 Troubleshooting The following is a list of good practices with WDS:

1. Start the wireless bridge system with only two access points and then add more access points. 2. Setup all access points in the wireless bridge in close proximity before they are deployed to their proper location. 3. Only one access point in the wireless bridge should be serving DHCP and routing services unless a routed wired network exists. Proper Setup:

Please follow the following steps to properly setup WDS. 1. It is recommended that all access points in the bridge are reset to their factory default settings. This is done by holding the INIT button on the rear of the access point down for 5-10 seconds. 2. Login to the rst access point in the wireless bridge (this should be the DHCP server enabled ac-

cess point if there is not already a routed wired network). 3. Click on the Advanced button. 4. The wireless settings page will appear. Select the proper settings for the wireless network. Record all settings on a piece of paper. All settings except for the SSID need to be identical amongst all ac-

cess points in the bridge.

(If roaming is desired, then make sure the SSID settings need to be identical as well). Press the Set button if any changes are made.

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

cessing it via its new IP address in a web browser (e.g. http://NEW_IP_ADDRESS). 76 Troubleshooting 5. Click on the LAN port link on the left. 6. Check that the LAN side IP address values are correct for your network, or leave them as default. Record the LAN side IP address. Press the Set button if any settings on this page have been set. 7. Click on the Management link on the left. 8. The System Information page will appear. In the Wireless section of the table record the MAC ad-

dress (including the :s). Please make sure the MAC address is recorded from the Wireless section and not the other sections. 9. Logout of the access point by clicking on the Logout link on the left. Close the browser window. 10. Login to the second access point in the wireless bridge. 11. Click on the Advanced button. 12. The wireless settings page will appear. Select the proper settings for the wireless network. Refer to the settings recorded from the rst access point. All settings except for the SSID need to be identical amongst all access points in the bridge.

(If roaming is desired, then make sure the SSID settings need to be identical as well). 13. Click on the LAN port link on the left. 14. Make sure that the LAN side IP address IP address setting is different then the rst access point. The IP addresses cannot be the same, but they should be on the same network. It is recommended that the IP address of the second access point is one higher then that of the rst access point. Thus, if access point ones address is 1.1.1.1, then access point twos address should be 1.1.1.2. If there is a DHCP server function setting on this page, then make sure to set it to Do not use or to Disabled. Press the Set button when nished. 77 Troubleshooting 15. Click on the Wireless bridge (WDS) link on the left. 16. Enable the WDS function and press the Set button. 17. Enter the Wireless MAC Address of the rst access point (which was recorded on Step 8) into the eld that say MAC Address of AirStation(Wireless) (include the :s). Press the Add button. 18. The Wireless MAC address inputted on the step above will appear in the Connected AirStation table. Please check that the checkbox under enable is checked, and then press the Enable marked item button. 19. At the top of the page, press the Apply button. 20. Once the router has rebooted, click on the Management tab on the left. 21. The System Information page will appear. In the Wireless section of the table record the MAC ad-

dress (including the :s). Please make sure the MAC address is recorded from the Wireless section and not the other sections. 22. Logout of the access point by clicking on the Logout link on the left. Close the browser window. 23. Login to access point one again. 24. Click on the Advanced button. 25. Click on the Wireless bridge (WDS) link on the left. 26. Enable the WDS function and press the Set button. 27. Enter the Wireless MAC Address of the rst access point (which was recorded on Step 21) into the eld that say MAC Address of AirStation(Wireless) (include the :s). Press the Add button. 78 Troubleshooting 29. At the top of the page, press the Apply button. 30. Once the router has rebooted, click on the Management tab on the left. 31. Click on the PING test link on the left. 32. In the Destination eld enter the IP address of the second access point and press the OK button. a. If the Result section of the table reports information like, 1st: 64 bytes from IP_ADDRESS then the WDS bridge is effectively working. b. If the Result section of the table reports Destination Host Unreachable, then an error has oc-

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

guration on the network, then please contact your local agency described in Quick Setup Guide. 79 Glossary 10BaseT or 100BaseTx: 802.3 based Ether-

net network that uses UTP (Unshielded twisted pair) cable and a star topology. 10 is 10 Mbps and 100 is 100 Mbps. 802.1x: The standard for wireless LAN authenti-

cation used between an AP and a client. 802.1x with EAP will initiate key handling. Ad-Hoc Network: The wireless network based on a peer-to-peer communications session. Also referred to as AdHoc. Bandwidth: The transmission capacity of a computer or a communication channel, stated in Megabits per second (Mbps). BSS (Basic Service Set): An 802.11 network-

ing framework that includes an Access Point. Bus Mastering: A system in which the speci-

ed Input/Output device (e.g. NIC Card) can perform tasks without the intervention of the CPU. Client: A PC or workstation on a network. Cross-Over Wiring: A UTP cable that has its transmit and receive pair crossed to allow com-

munications between two devices. DCE (Data Communications Equipment):

Hardware used for communication with a Data Terminal Equipment (DTE) device. Default Gateway: The IP Address of either the nearest router or server for the LAN. Default Parameter: Parameter set by the manufacturer. Destination Address: The address portion of a packet that identies the intended recipient station. DHCP (Dynamic Host Conguration Pro-

tocol): Based on BOOTP, it uses a pool of IP addresses, which it assigns to each device con-

nected to it, and retrieves the address when the device becomes dormant for a period of time. DNS (Domain Name System): System used to map readable machine names into IP ad-

dresses 80 Glossary Driver: Software that interfaces a computer with a specic hardware device. DSSS (Direct Sequence Spread Spectrum):

Method of spreading a wireless signal into wide frequency bandwidth. DTE (Data Terminal Equipment): Device that con10BaseT or 100BaseTx: 802.3 based Ethernet network that uses UTP (Unshielded twisted pair) cable and a star topology. 10 is 10 Mbps and 100 is 100 Mbps. Dynamic IP Address: An IP address that is automatically assigned to a client station in a TCP/IP network, typically by a DHCP server. ESS (Extended Service Set): A set of two or more BSSs that form a single sub-network. SSID is user identication used in the ESS LAN conguration. Ethernet: The most widely used architecture for Local Area Networks (LANs). It is a shared-

media network architecture. The IEEE 802.3 standard details its functionality. Ethernet cable: A wire similar to telephone cable that carries signals between Ethernet devices. File and Print Sharing: A Microsoft application that allows computers on a network to share les and printers. Firmware: Programming inserted into pro-

grammable read-only memory, thus becoming a permanent part of a computing device. Frame: A xed block of data, transmitted as a single entity. Also referred to as packet. Full-Duplex: To transmit on the same channel in both directions simultaneously. Half-duplex: To transmit on the same channel in both directions, one direction at a time. Hub: A device which allows connection of com-

puters and other devices to form a LAN. IEEE (Institute of Electrical and Electronics Engineers): The professional organization which promotes development of electronics technology. 81 Glossary IP (Internet Protocol) Address: A unique 32-

binary-digit number that identies each sender or receiver of information sent in packets. Infrastructure: A wireless network or other small network in which the wireless network devices are made a part of the network through the Access Point. ISP (Internet Service Provider): A company that provides access to the Internet and other related services. IV (Initialization Vector): The header section of an encrypted message packet. LAN (Local Area Network): A group of com-

puters and peripheral devices connected to share resources. LED (Light Emitting Diode): The lights on a hardware device representing the activity through the ports. MAC (Medium Access Control) Address:

A unique number that distinguishes network cards. Mbps (Mega Bits Per Second): A measure-

ment of millions of bits per second. MDI/X (Media Dependent Interface/Cross-

over): Port on a network hub or switch that crosses the incoming transmit lines with the outgoing receive lines. MHz (MegaHertz): One million cycles per second. NAT (Network Address Translation): An inter-

net standard that enables a LAN to use one set of IP addresses for internal trafc and a second set for external trafc. NIC (Network Interface Card): An expansion card connected to a computer so the computer can be connected to a network. Packet: A block of data that is transferred as a single unit, also called a frame or a block. Packet Filtering: Discarding unwanted net-

work trafc based on its originating address or its type. 82 Glossary PCI (Peripheral Component Interconnect): A bus that is connected directly to the CPU. PCMCIA (Personal Computer Memory Card International Association) Card: Remov-

able module that adds features to a portable computer. Ping (Packet Internet Groper): An Internet utility used to determine whether a particular IP address is online. Plug and Play: Hardware that, once in-

stalled (plugged in), can immediately be used (played), as opposed to hardware that requires manual conguration. PoE (Power over Ethernet): A mechanism to send DC power to a device using a CAT5 Ethernet cable. PPPoE (Point-to-Point Protocol over Ether-

net): A specication for connecting users on an Ethernet line to the Internet through a common broadband medium. Protocol: A standard way of exchanging infor-

mation between computers. RADIUS (Remote Authentication Dial In User Service): A server that issues authentication key to clients. RAM (Random Access Memory): Non-permanent memory. Repeater Hub: A device that collects, strengthens and transmits information to all connected devices, allowing the network to be extended to accommo-

date additional workstations. RC4: The encryption algorithm that is used in WEP. RJ-45 connector: An 8-pin connector used be-

tween a twisted pair cable and a data transmission device. ROM (Read Only Memory): Permanent memory. Router: Device that can connect individual LANs and remote sites to a server. Roaming: The ability to use a wireless device while moving from one access point to another without losing the connection. 83 Glossary Script: A macro or batch le containing instruc-

tions and used by a computer to perform a task. 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 dene and deliver electronic mail (E-mail) from one location to another. SNMP (Simple Network Management Proto-

col: An application layer protocol that outlines the formal structure for communication among network devices. Static IP Address: A permanent IP address is assigned to a node in a TCP/IP network. Also known as global IP. STP (Shielded Twisted Pair): Twisted Pair cable wrapped in a metal sheath to provide ex-

tra protection from external interfering signals. Subnet Mask: An eight-byte address divided into 4 parts separated by periods. TCP/IP (Transmission Control Protocol/In-

ternet Protocol: Protocol used by computers when communicating across the Internet or Intranet. TKIP (Temporal Key Integrity Protocol): An encryption method replacing WEP. TKIP uses random IV and frequent key exchanges. Topology: The shape of a LAN (Local Area Network) or other communications system. Twisted Pair: Cable that comprises 2 or more pair of insulated wires twisted together. UDP (User Datagram Protocol): A com-

munication method (protocol) that offers a limited amount of service when messages are exchanged between computers in a network. UDP is used as an alternative to TCP/IP. Uplink: Link to the next level up in a communi-

cation hierarchy. UTP (Unshielded Twisted Pair) cable: Two or more unshielded wires twisted together to form a cable. 84 Glossary WAN (Wide Area Network): A networking sys-

tem covering a wide geographical area. WEP (Wired Equivalent Privacy): An encryp-

tion method based on 64 or 128-bit algorithm. Web Browser: A software program that allows viewing of web pages. Wi-Fi (Wireless Fidelity): An organization that tests and assures interoperability among WLAN devices. Wire Speed: The maximum speed at which a given packet can be transferred using Ethernet and Fast Ethernet standard specications. WLAN (Wireless LAN): A LAN topology using wireless devices. VPN (Virtual Private Network): A security method to connect remote LAN users to a cor-

porate LAN system. 85 FCC / CE Information Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is con-

nected. Consult the dealer or an experienced radio/TV technician for help. FCC Caution: To assure continued compliance, (example - use only shielded interface cables when connecting to computer or peripheral devices). Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 86 FCC / CE Information IMPORTANT NOTE:

Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

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

-Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate this equipment. 87 FCC / CE Information FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &

your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. BUFFALO declared that WHR-G54S is limited in CH1~11 by specified firmware controlled in USA. Safety This equipment is designed with the utmost care for the safety of those who install and use it. However, special attention must be paid to the dangers of electric shock and static electricity when working with electrical equipment. All guidelines of this manual and of the computer manufacturer must therefore be allowed at all times to ensure the safe use of the equipment. 88 FCC / CE Information Important Notice:

This device is a 2.4 GHz wireless LAN transceiver, intended for indoor home and office use in all EU and EFTA member states. Intended use This device is a 2.4 GHz wireless LAN transceiver, intended for indoor home and office use in all EU and EFTA member states. EU Countries intended for use This device is intended for indoor Home and office use in the following countries, Austria, Belgium, Germany, Denmark, Spain, Greece, France, Finland, Italy, Ireland, Luxembourg, The Netherlands, Portugal, Sweden, United Kingdom, Cyprus, Czech Republic, Estonia, Hungry, Latvia, Lithuania, Malta, Poland, Slovak Republic and Slovenia. The device is also authorised for use in all EFTA member states Iceland, Liechtenstein, Norway and Switzerland. EU countries not intended for use None 89 FCC / CE Information Potential restrictive use This device is a 2.4 GHz wireless LAN transceiver, intended for indoor home and office use in all EU and EFTA member states, except in France, Belgium and Italy where restrictive use applies. In Italy the end-user should apply for a license at the national spectrum authorities in order to obtain an authorization to use the device for setting up outdoor radio links. In Belgium there is a restriction in outdoor use. The frequency range in which outdoor operation in Belgium is permitted is 2460 2483.5 MHz. This device may not be used for setting up outdoor radio links in France. For more information see http://www.anfr.fr/ and/or http://www.art-telecom.fr 90 Warranty Information Buffalo Technology (Melco Inc.) products comes with a two-year limited warranty from the date of purchase. Buffalo Technology (Melco Inc.) warrants to the original purchaser the product; good operat-

ing 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, modications 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 prots, 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.

@ 2005 Buffalo Technology (Melco, Inc.) 91 Contact Information North America (USA / Canada) ADDRESS Buffalo Technology (USA), Inc. 4030 West Braker Lane, Suite 120 Austin, TX 78759-5319 GENERAL INQUIRIES Monday through Friday 8:30am-5:30pm CST Direct: 512-794-8533 Toll-free: 800-456-9799 Fax: 512-794-8520 Email: sales@buffalotech.com TECHNICAL SUPPORT North American Technical Support by phone is available 24 hours a day, 7 days a week. (USA and Canada). Toll-free: (866) 752-6210 WEB: www.buffalotech.com 92 Contact Information Europe ADDRESS BUFFALO TECHNOLOGY UK LTD 176, Buckingham Avenue, Slough, Berkshire, SL1 4RD United Kingdom GENERAL INQUIRIES E-mail: sales@buffalo-technology.com TECHNICAL SUPPORT European Technical Support is available between the hours of 9am-6pm (GMT) Monday to Thursday and 9am-4:30pm (GMT) Friday for this product. Customers in Europe can obtain Technical Support using the following information:

E-mail Web helpdesk@buffalo-technology.ie www.buffalo-technology.com 93 Contact Information The constantly evolving state of wireless products and operating systems requires Buffalo Technology to occasionally release updated software to take advantage of new technologies and to comply with industry standards. For the most recent software, rmware, driver, and technical whitepaper releases available, please visit the Buffalo Technology website. USA/Canada : http://www.buffalotech.com/

Europe

: http://www.buffalo-technology.com/

94