ASUSTeK Computer WLHGWSWL500 Residential WLAN Gatweway User Manual 6

ASUSTeK Computer Inc Residential WLAN Gatweway 6

Manual

SpaceLink Home GatewayWL-500User’s Manual®
2 SpaceLink Home GatewayNo part of this manual, including the products and software described in it,may be reproduced, transmitted, transcribed, stored in a retrieval system,or translated into any language in any form or by any means, exceptdocumentation kept by the purchaser for backup purposes, without theexpress written permission of ASUSTeK COMPUTER INC. (“ASUS”).ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTYOF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUTNOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONSOF MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT,SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OFBUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESSAND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THEPOSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECTOR ERROR IN THIS MANUAL OR PRODUCT.Product warranty or service will not be extended if: (1) the product isrepaired, modified or altered, unless such repair, modification of alterationis authorized in writing by ASUS; or (2) the serial number of the product isdefaced or missing.Products and corporate names appearing in this manual may or may not beregistered trademarks or copyrights of their respective companies, and areused only for identification or explanation and to the owners’ benefit, withoutintent to infringe.SPECIFICATIONS AND INFORMATION CONTAINED IN THISMANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, ANDARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, ANDSHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUSASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORSOR INACCURACIES THAT MAY APPEAR IN THIS MANUAL,INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.Copyright © 2002 ASUSTeK COMPUTER INC. All Rights Reserved.Copyright InformationProduct Name: SpaceLink Home Gateway (WL-500)Manual Revision: 1.00 E1062Release Date: Aug 2002
SpaceLink Home Gateway 3ASUSTeK COMPUTER INC. (Asia-Pacific)Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112General Tel: +886-2-2894-3447General Fax: +886-2-2894-3449General Email: info@asus.com.twTechnical SupportMB/Others (Tel): +886-2-2890-7121 (English)Notebook (Tel): +886-2-2890-7122 (English)Desktop/Server (Tel): +886-2-2890-7123 (English)Support Fax: +886-2-2890-7698Support Email: tsd@asus.com.twWeb Site: www.asus.com.twNewsgroup: cscnews.asus.com.twASUS COMPUTER INTERNATIONAL (America)Address: 6737 Mowry Avenue, Mowry Business Center,Building 2, Newark, CA 94560, USAGeneral Fax: +1-510-608-4555General Email: tmd1@asus.comTechnical SupportSupport Fax: +1-510-608-4555Web Site: www.asus.comSupport Email: tsd@asus.comASUS COMPUTER GmbH (Europe)Address: Harkortstr. 25, 40880 Ratingen, BRD, GermanyGeneral Fax: +49-2102-442066General Email: sales@asuscom.de (for marketing requests only)Technical SupportSupport Hotline: MB/Others: +49-2102-9599-0Notebook (Tel): +49-2102-9599-10Support Fax: +49-2102-9599-11Support (Email): www.asuscom.de/de/support (for online support)Web Site: www.asuscom.deCopyright Information
4 SpaceLink Home GatewayFederal Communications Commission StatementThis device complies with FCC Rules Part 15. Operation is subject to the followingtwo conditions:• This device may not cause harmful interference, and• This device must accept any interference received, including interference thatmay cause undesired operation.This equipment has been tested and found to comply with the limits for a class Bdigital device, pursuant to Part 15 of the Federal Communications Commission (FCC)rules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses, and canradiate radio frequency energy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radio communications. However,there is no guarantee that interference will not occur in a particular installation. Ifthis equipment does cause harmful interference to radio or television reception, whichcan be determined by turning the equipment off and on, the user is encouraged to tryto correct the interference by one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to whichthe receiver is connected.• Consult the dealer or an experienced radio/TV technician for help.WARNING! The use of a shielded-type power cord is required inorder to meet FCC emission limits and to prevent interference tothe nearby radio and television reception. It is essential that onlythe supplied power cord be used. Use only shielded cables to con-nect I/O devices to this equipment. You are cautioned that changesor modifications not expressly approved by the party responsiblefor compliance could void your authority to operate the equipment.Reprinted from the Code of Federal Regulations #47, part 15.193, 1993. WashingtonDC: Office of the Federal Register, National Archives and Records Administration,U.S. Government Printing Office.Canadian Department of CommunicationsThis digital apparatus does not exceed the Class B limits for radio noise emissionsfrom digital apparatus set out in the Radio Interference Regulations of the CanadianDepartment of Communications.This Class B digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la classe B est conforme à la normeNMB-003 du Canada.Safety Statements
SpaceLink Home Gateway 5Safety InformationIn order to maintain compliance with the FCC RF exposure guidelines,this equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Use only with supplied antenna.Unauthorized antenna, modification, or attachments could damage thetransmitter and may violate FCC regulations. Any changes of modificationsnot expressly approved by the grantee of this device could void the usersauthority to operate the equipment.FCC Radio Frequency Exposure Caution StatementInstallation and use of this Wireless LAN device must be in strict accordancewith the instructions included in the user documentation provided with theproduct. Any changes or modifications (including the antennas) made tothis device that are not expressly approved by the manufacturer may voidthe user’s authority to operate the equipment. The manufacturer is notresponsible for any radio or television interference caused by unauthorizedmodification of this device, or the substitution or attachment of connectingcables and equipment other than manufacturer specified. It is theresponsibility of the user to correct any interference caused by suchunauthorized modification, substitution or attachment. Manufacturer andits authorized resellers or distributors will assume no liability for any damageor violation of government regulations arising from failing to comply withthese guidelines.
6 SpaceLink Home GatewayTable of Contents1. Introduction.......................................................................................... 8The SpaceLink™ Family ....................................................................... 8System Requirements ........................................................................... 8The Product Package ....................................................................... 9FEATURES.......................................................................................... 10The IEEE 802.11b Specification .......................................................... 11Direct-Sequence Spread Spectrum ..................................................... 12Wireless Operation .............................................................................. 13Roaming Between SpaceLink™ Gateways or APs......................... 14Roaming Guidelines (SpaceLink™ Gateways or APs) ................... 15SpaceLink™ Home Gateway Topology ............................................... 16SpaceLink Home Gateway LED Indicators ......................................... 192. Installation.......................................................................................... 20Installation Procedure .......................................................................... 20Wall Mounting Option .......................................................................... 22Vertical Standing Option ...................................................................... 23Connecting to the SpaceLink Home Gateway ..................................... 24Configuring the SpaceLink Home Gateway......................................... 25Installing the Homegateway Utilities ............................................... 263. SpaceLink Home Gateway Utilities .................................................. 27Connecting to the SpaceLink Web Manager ....................................... 27Home Gateway Discovery ................................................................... 27User Name and Password .............................................................. 29Home Page ..................................................................................... 29Login Password ................................................................................... 30Basic Setup ......................................................................................... 30Status .................................................................................................. 31Status Details .................................................................................. 32Basic Setup - Wireless ........................................................................ 33Supported Clients ........................................................................... 35Basic Setup - LAN Configuration ......................................................... 37Basic Setup - WAN Configuration ....................................................... 38Network Backbone .......................................................................... 38Agent to an ISP ............................................................................... 39Agent to Another Network ............................................................... 42Automatic IP.................................................................................... 42Static IP........................................................................................... 43Firewall ................................................................................................ 44
SpaceLink Home Gateway 7Table of ContentsWireless Access Control ...................................................................... 45Advanced WAN Configuration ............................................................. 46Virtual Server ....................................................................................... 48Special Application .............................................................................. 50Firewall Bypass Zone .......................................................................... 51PPTP Server........................................................................................ 52Firmware Upgrade ............................................................................... 53Restoring Factory Default Settings ................................................. 54Firmware Restoration .......................................................................... 55Using a Hub .................................................................................... 55Printer Setup Wizard ........................................................................... 56Add Printer Wizard .......................................................................... 56Printer Setup Wizard ....................................................................... 58Verifying Your Printer ...................................................................... 59VPN Client ........................................................................................... 60Starting VPN Client ......................................................................... 60Main Window ....................................................................................... 60Connection Properties ......................................................................... 62Connection Name ........................................................................... 62Dialing Options................................................................................ 62Advanced Properties....................................................................... 63Dialing a Connection ....................................................................... 634. Wireless Performance ....................................................................... 64Site Topography................................................................................... 64Site Surveys ........................................................................................ 64Range .................................................................................................. 655. Troubleshooting ................................................................................. 66Common Problems and Solutions ....................................................... 66Reset to Defaults ................................................................................. 676. Appendix ............................................................................................. 70Operating frequency range .................................................................. 70Number of operating channels ............................................................ 70DSSS PHY frequency channel plan .................................................... 70SpaceLink Home Gateway Specifications ........................................... 71Glossary .............................................................................................. 72
1. IntroductionChapter 1 - Introduction8 SpaceLink Home Gateway1. IntroductionThank you for choosing the SpaceLink Home Gateway, a member of ASUS’SpaceLink wireless infrastructure family. The SpaceLink Home Gatewaycomplies with the IEEE 802.11b wireless standard to provide wirelessmobile clients with network connectivity at data rates of up to 11 Mbps.The stand-alone the SpaceLink Home Gateway connects to a small Ethernetnetwork to provide wireless access for wireless mobile clients.The SpaceLink™ FamilyThe SpaceLink Home Gateway is a member of a product family thatprovides a complete wireless networking solution.• The SpaceLink Home Gateway (WL-500) creates a wireless networkusing the IEEE 802.11b wireless standard and adds a router, hub, andprinter server.• The SpaceLink Access Point (WL-300) creates a wireless networkusing the IEEE 802.11b wireless standard.• The SpaceLink PC Card (WL-100) is a wireless LAN adapter thatfits into a PCMCIA Type II slot in a Notebook PC.• The SpaceLink CF Card (WL-110) is a wireless LAN adapter that fitsinto a Compact Flash Type II slot in a Portable Digital Assistant (PDA).System RequirementsTo begin using the SpaceLink Home Gateway , you must have the followingminimum requirements:• ADSL/Cable Modem and Broadband Internet Account• An Ethernet (10Base-T or 10/100Base-TX) adapter for wired client• At least one 802.11b wireless adapter for a wireless mobile client• TCP/IP and Internet browser installed• Printer, which supports standard parallel protocol (SPP) (optional)Note: The SpaceLink Home Gateway only supports 10Base-T onthe WAN port and both 10Base-T and 100Base-TX on the LAN port.
1. IntroductionSpaceLink Home Gateway 9Chapter 1 - IntroductionThe Product PackageEach the SpaceLink Home Gateway comes with:• One SpaceLink Home Gateway (WL-500)• One power adapter (5 Volts DC, 2 Amp)• One RJ-45 Ethernet cable (straight-through)• One SpaceLink Home Gateway (WL-500) Quick Start Guide• One support CD (Utilities and User’s Manual PDF)
1. IntroductionChapter 1 - Introduction10 SpaceLink Home GatewayFEATURESThe SpaceLink Home Gateway features include:•Multiple local network ports. Four 10/100Base-T Ethernet ports,offering either a connection to a hub or switch on the local wired networkor a direct connection to multiple Ethernet-enabled computer.•Wireless antenna. The integrated Wireless Access Point allows theSpaceLink Home Gateway to link a broadband Internet connection toyour local network of 802.11b (DSSS) wireless mobile clients.•Broadband port. The Broadband port connects the SpaceLink HomeGateway to your cable/DSL modem.•Shared Internet access. All computers on the local network can accessthe Internet through the SpaceLink Home Gateway, using only a singleexternal IP address.•DHCP server support. DHCP (Dynamic Host Configuration Protocol)support allows the SpaceLink Home Gateway to automatically provideIP addresses to computers on your local network.•PPPoE support. Connect to your DSL provider using PPPoE (PPPover Ethernet), if your ISP uses this method.•Easy setup and management. Use your web browser from anycomputer on the local network to configure the SpaceLink HomeGateway.•Advanced features. The SpaceLink Home Gateway supports manyadvanced configuration features including the following: User-definedvirtual servers; special Internet applications; exposed computer;password protection and access control.•Firewall protection. The SpaceLink Home Gateway’s use of NAT(Network Address Translation) provides firewall protection for yourlocal network. NAT masks the local network’s IP Addresses from theInternet. Additional protection can be achieved using the advancedfeatures of the SpaceLink Home Gateway.•WEP support. Supports 64 bit and 128 bit WEP encryption on thewireless network.
1. IntroductionSpaceLink Home Gateway 11Chapter 1 - IntroductionThe IEEE 802.11b SpecificationIn 1997, the Institute of Electrical and Electronics Engineers (IEEE) adoptedthe 802.11 standard for wireless devices operating in the 2.4 GHz frequencyband. This standard includes provisions for three radio technologies: directsequence spread spectrum, frequency hopping spread spectrum, andinfrared. Devices that comply with the 802.11 standard operate at a datarate of either 1 or 2 Mbps.In 1999, the IEEE created the 802.11b standard. 802.11b is essentiallyidentical to the 802.11 standard except 802.11b provides for data rates ofup to 11 Mbps for direct sequence spread spectrum devices. Under 802.11b,direct sequence devices can operate at 11 Mbps, 5.5 Mbps, 2 Mbps, or 1Mbps. This provides interoperability with existing 802.11 direct sequencedevices that operate only at 2 Mbps.Direct sequence spread spectrum devices spread a radio signal over a rangeof frequencies. The IEEE 802.11b specification allocates the 2.4 GHzfrequency band into 14 overlapping operating Channels. Each Channelcorresponds to a different set of frequencies. See the Appendix to determinethe center frequency used by each Channel.If operating multiple 802.11b Home Gateways in the same vicinity, thedistance between the center frequencies must be at least 25 MHz to avoidinterference. Note that the Channels available to an 802.11b Home Gatewaywill vary from country to country. In the United States, the 802.11b standardallocates 11 operating Channels for direct sequence devices. Channels 1,6, and 11 are independent and do not overlap with each other. To avoidinterference between 802.11b Home Gateways, It is recommended that youconfigure the Home Gateways using only Channels 1, 6, and 11.
1. IntroductionChapter 1 - Introduction12 SpaceLink Home GatewayDirect-Sequence Spread SpectrumSpread spectrum (broadband) uses a narrowband signal to spread thetransmission over a segment of the radio frequency band or spectrum. Direct-sequence is a spread spectrum technique where the transmitted signal isspread over a particular frequency range. The Space Link Home Gatewayuses Direct-Sequence Spread Spectrum (DSSS) for radio communication.Direct-sequence systems communicate by continuously transmitting aredundant pattern of bits called a chipping sequence. Each bit of transmitteddata is mapped into chips by the Home Gateway and rearranged into apseudorandom spreading code to form the chipping sequence. The chippingsequence is combined with a transmitted data stream to produce the HomeGateway output signal.Wireless mobile clients receiving a direct-sequence transmission use thespreading code to map the chips within the chipping sequence back intobits to recreate the original data transmitted by the Home Gateway.Intercepting and decoding a direct-sequence transmission requires apredefined algorithm to associate the spreading code used by the transmittingHome Gateway to the receiving wireless mobile client.This algorithm is established by IEEE 802.11b specifications. The bitredundancy within the chipping sequence enables the receiving wirelessmobile client to recreate the original data pattern, even if bits in the chippingsequence are corrupted by interference. The ratio of chips per bit is calledthe spreading ratio. A high spreading ratio increases the resistance of thesignal to interference. A low spreading ratio increases the bandwidthavailable to the user. The Home Gateway uses a constant chip rate of11Mchips/s for all data rates, but uses different modulation schemes toencode more bits per chip at the higher data rates. The Home Gateway iscapable of an 11 Mbps data transmission rate, but the coverage area is lessthan a 1 or 2 Mbps Home Gateway since coverage area decreases asbandwidth increases.
1. IntroductionSpaceLink Home Gateway 13Chapter 1 - IntroductionWireless OperationThe SpaceLink Home Gateway will operate as a MAC layer learning bridgeand forward packets between wireless mobile clients and the Ethernetnetwork.A wireless LAN that uses the SpaceLink Home Gateway generally consistsof one or more 802.11b Access Points and one or more wireless mobileclients that have an 802.11b adapter installed.The SpaceLink Home Gateway maintains a table of MAC addresses, whichit has learned are located either on the Ethernet network or on the radionetwork by monitoring the source address of packets it receives. Forexample, if the SpaceLink Home Gateway receives a packet over its radio,it creates an entry in its table for the node that sent the packet and labels theentry as a member of the radio network. The SpaceLink Home Gatewayremoves an entry from the table after five minutes of inactivity.When the SpaceLink Home Gateway receives a packet from the Ethernetnetwork, it compares the packet’s destination address with the nodeaddresses listed in its table. If the packet’s destination address is not in thetable, the SpaceLink Home Gateway will forward the packet to the wirelessmobile clients. If the packet’s destination address is listed in the table as amember of the radio network, the SpaceLink Home Gateway will forwardthe packet to the wireless mobile clients. If the packet’s destination addressis listed in the table as a member of the Ethernet network, the SpaceLinkHome Gateway will not forward the packet to the wireless mobile clients.The SpaceLink Home Gateway applies the same principles to determine ifa packet received over its radio should be forwarded to the Ethernet network.The SpaceLink Home Gateway forwards all broadcast packets to wirelessmobile clients. Given this, the SpaceLink Home Gateway can only support250 nodes.The speed available to wireless mobile clients depends on the amount ofinformation that each client exchanges with the network because the 11Mbps wireless bandwidth is shared will all wireless nodes.
1. IntroductionChapter 1 - Introduction14 SpaceLink Home GatewayRoaming Between SpaceLink™ Gateways or APsIf there are multiple SpaceLink Home Gateways or Access Points on thenetwork, then a wireless mobile client may seamlessly roam from one theSpaceLink Home Gateway or Access Point to another.Each SpaceLink Home Gateway or Access Point creates its own wirelesscell or coverage area. This is also known as a Basic Service Set (BSS). Anywireless mobile client can communicate with a particular SpaceLink HomeGateway or Access Point if it is within the SpaceLink Home Gateway’s orAccess Point’s coverage area.If the cells of multiple SpaceLink Home Gateways or Access Points overlap,then the wireless mobile client may switch from one SpaceLink HomeGateway or Access Point to another as it travels throughout the facility.During the hand-off from one SpaceLink Home Gateway or Access Pointto another, the wireless mobile client maintains an uninterrupted connectionto the network. This is known as “roaming.”Multiple SpaceLink Home Gateways connected to a common Ethernetnetwork form an Extended Service Set (ESS). All members of an ExtendedService Set are configured with an ID, known as the SSID or ESSID.Wireless mobile clients must be configured with the same SSID as theSpaceLink Home Gateways or Access Points on the network; a client canonly roam between the SpaceLink Home Gateways or Access Points thatshare the same SSID.
1. IntroductionSpaceLink Home Gateway 15Chapter 1 - IntroductionRoaming Guidelines (SpaceLink™ Gateways or APs)• A 802.11b PC Card can only roam between 802.11b SpaceLink HomeGateways or Access Points.• All the SpaceLink Home Gateways or Access Points must have thesame SSID.• All computers with SpaceLink PC card or CF card adapters must havethe same SSID as the Home Gateways or Access Points that they willroam between.• If WEP encryption is enabled, then all the SpaceLink Home Gatewaysor Access Points and client adapters must use the same encryption leveland WEP Key(s) to communicate.• The SpaceLink Home Gateways’ or Access Points’ cells must overlapto ensure that there are no gaps in coverage and to ensure that the roamingclient will always have a connection available.• The SpaceLink Home Gateways or Access Points that use the sameChannel should be installed as far away from each other as possible toreduce potential interference.• It is strongly recommended that you perform a site survey using theutility provided with the SpaceLink PC card or CF card to determinethe best location for each the SpaceLink Home Gateway or Access Pointsin the facility.
1. IntroductionChapter 1 - Introduction16 SpaceLink Home GatewayWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWirelessLANSpaceLink™ Home Gateway TopologyThere are three major ways to deploy the home gateway in your localnetwork (I) Network backbone, (II) Agent to ISP and (III) Agent to anothernetwork.In this topology, the home gateway connects your wired and wireless devicestogether to form a local area network (LAN), as shown. To connect acomputer (or other device) to the SpaceLink Home Gateway, you need anetwork cable (UTP-Cat5) with one end connected to one of the LAN portson the back of the SpaceLink Home Gateway and the other in the 10/100LAN port on that device. For wireless connections, wireless mobile clientsmust comply with the IEEE 802.11b standard.Network Backbone
1. IntroductionSpaceLink Home Gateway 17Chapter 1 - IntroductionInternet Service ProviderWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWANLANADSL or Cable ModemInternetWirelessIn this topology, the home gateway is not only a backbone of your LANbut also an agent to your Internet Service Provider (ISP). You may use anADSL or Cable modem to communicate with your ISP. Connect the LANport on the modem with the WAN port at the back of the SpaceLink HomeGateway using a network cable as shown above.Note: You also need to make sure that other connections on theADSL or Cable modem are correct.Agent to ISP
1. IntroductionChapter 1 - Introduction18 SpaceLink Home GatewayNetwork BackboneWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWANLANWirelessIn this topology, the home gateway is an agent between your LAN andanother network. Use a network cable with one end connected to the WANport on the home gateway and the other to the other network as shownabove.Agent to Another Network
1. IntroductionSpaceLink Home Gateway 19Chapter 1 - IntroductionSpaceLink Home Gateway LED IndicatorsThe LEDs on the front of the SpaceLink Home Gateway display the statusof the SpaceLink Home Gateway.PWR (Power)Off (1) No power, (2) During boot sequenceOn (1) Power ON and system readyFlashing (1) During boot sequence, (2) Self-test errorAIR (Wireless)Off (1) No power, (2) No wireless connectionOn (1) At least one wireless client is associatedFlashing (1) Wireless traffic through this port is detected, (2) Self-test errorWAN (Wide Area Network)Off (1) No power, (2) No wired connectionOn (1) Link to another network device but no trafficFlashing (1) Wired traffic through this port is detected, (2) Self-test errorLAN (Local Area Network)Off (1) No power, (2) No wired connectionOn (1) Link to another network device but no trafficFlashing (1) Wired traffic through this port is detected, (2) Self-test errorLPT (Printer)Off (1) No power, (2) No printer is connectedOn (1) The connected printer is switched onFlashing (1) Send data to a printerNote: The SpaceLink Home Gateway only supports 10Base-T onthe WAN port and both 10Base-T and 100Base-TX on the LAN port.PWRAIRWANLANLPT
Chapter 2 - Installation2. Installation20 SpaceLink Home Gateway2. InstallationThis chapter describes the installation procedure for the SpaceLink HomeGateway and includes a description of the LEDs found on the unit.Installation ProcedureFollow these steps to install the SpaceLink Home Gateway.1. Location: Determine the best location for the SpaceLink HomeGateway. Keep in mind the following considerations:• The length of the Ethernet cable that connects the Home Gatewayto the network must not exceed 100 meters.• For standard placement, try to place the Home Gateway on a flat,sturdy surface as far from the ground as possible, such as on top ofa desk or bookcase, keeping clear of metal obstructions and awayfrom direct sunlight.• Try to centrally locate the Home Gateway so that it will provide cov-erage to all of the wireless mobile devices in the area. Orientating theantenna vertically should provide the best reception.• Use only the power supply that came with this unit. Other powersupplies may fit but the voltage and power may not be compatible.It is the responsibility of the installer and users of the SpaceLinkHome Gateway to guarantee that the antenna is operated at least20 centimeters from any person. This is necessary to insure thatthe product is operated in accordance with the RF Guidelines forHuman Exposure which have been adopted by the Federal Com-munications Commission.2. Mounting: Place the Home Gateway in the desired location. Wallmounting is also possible for the Home Gateway. Refer to the sectionentitled “Wall Mounting Option” for details.3. WAN Connection: Attach one end of the provided RJ-45 Ethernet cableto the SpaceLink Home Gateway’s WAN port and attach the other endto the RJ-45 Ethernet cable to your ADSL or Cable modem.The SpaceLink Home Gateway WAN port does not support 100Base-TX; it only supports 10Base-T. The WAN port may be connected todevices that supports both 10/100, but not pure 100Base-TX.
2. InstallationChapter 2 - InstallationSpaceLink Home Gateway 21Note: Use the Home Gateway only with the power adapter suppliedin the product package. Using another power supply may damagethe Home Gateway.6. Printer Connection: If you plan to use the home gateway as a printingserver for your local network, connect a printer to the printer port of thehome gateway via a printer cable.4. LAN Connection: Attach one end of an RJ-45 Ethernet cable to theSpaceLink Home Gateway’s LAN port (any one of the four) and attachthe other end to the RJ-45 Ethernet cable to your desktop computer.5. Power Connection: The SpaceLink Home Gateway requires powerfrom an external power supply. The SpaceLink Home Gateway shipswith a UL listed, Class 2 power supply (5V, 2A). Attach one end of theDC power adapter to the back of the SpaceLink Home Gateway and theother end to a power outlet.The Power LED on the front of the Home Gateway will light up whenthe unit is powered ON. In addition, the green LAN or WAN LEDs willturn ON to indicate that the Home Gateway has a physical Ethernetnetwork connection.
Chapter 2 - Installation2. Installation22 SpaceLink Home GatewayWall Mounting OptionOut of the box, the SpaceLink Home Gateway is designed to sit on a raisedflat surface like a file cabinet or book shelf. The unit may also be convertedfor mounting to a wall or ceiling.Follow these steps to mount the Home Gateway to a wall:1. Look on the underside for the four mounting hooks.2. Mark two upper holes in a flat surface using the provided hole template.3. Tighten two screws until only 1/4” is showing.4. Latch the upper two hooks of the Home Gateway onto the screws.Note: Readjust the screws if you cannot latch the Home Gatewayonto the screws or if it is too loose.
2. InstallationChapter 2 - InstallationSpaceLink Home Gateway 23Vertical Standing OptionThe ASUS Home Gateway can also stand on its side to save space. Twohinges can be opened on the right side to support vertical standing. Orientatethe antenna so that it points upwards.Support Hinge
Chapter 2 - Installation2. Installation24 SpaceLink Home GatewayConnecting to the SpaceLink Home GatewayWired ConnectionOne RJ-45 cable is supplied with the SpaceLink Home Gateway. Autocrossover function is designed into the SpaceLink Home Gateway so youcan use either a straight-through or a crossover Ethernet cable. Plug oneend of the cable into the WAN port on the rear of the SpaceLink HomeGateway and the other end into the Ethernet port of your ADSL or Cablemodem.Note: The WAN port only supports 10Base-TX.Wireless-ConnectionRefer to your wireless adapter user’s manual on associating with theSpaceLink Home Gateway . The default SSID of the SpaceLink HomeGateway is “default” (lower case), encryption is disabled and open systemauthentication is used.Printer ConnectionThe SpaceLink Home Gateway can be utilized as a printer server to allowmany wired or wireless computers to share a standard printer. A DB25parallel cable should be supplied with your printer. Plug the male connectorof this parallel cable into the printer port on the rear of the SpaceLinkHome Gateway and the centronics end into your printer.Printer Port
2. InstallationChapter 2 - InstallationSpaceLink Home Gateway 25Configuring the SpaceLink Home GatewayThe home gateway can be configured to meet various usage scenarios.Some of the factory default settings may suit your usage; however, othersmay need changing. Prior to using the home gateway, you must check thebasic settings to guarantee it will work in your environment.Configuring the SpaceLink Home Gateway is done through a web browser.You need a Notebook PC or desktop PC connected to the SpaceLink HomeGateway and running a web browser as a configuration terminal. Theconnection can be wired or wireless. For the wireless connection, you needan IEEE 802.11b compatible device, e.g. ASUS SpaceLink PC Card,installed in your Notebook PC. You should also disable WEP and set theSSID to “default” for your wireless LAN device.If you want to configure the SpaceLink Home Gateway or want to accessthe Internet through the SpaceLink Home Gateway, TCP/IP settings mustbe correct. Normally, the TCP/IP setting should be on the IP subnet of theSpaceLink Home Gateway. The SpaceLink Home Gateway incorporates aDHCP server so the easiest method is to set your PC to get its IP addressautomatically and reboot your computer. So the correct IP address, gateway,DNS (Domain Name System Server) can be obtained from the SpaceLinkHome Gateway.Note: Before rebooting your PC, the SpaceLink Home Gatewayshould be switched ON and in ready state.Advanced IP SettingsIf you want to set your IP address manually, the following default settingsof the SpaceLink Home Gateway should be known:• IP address 192.168.123.1• Subnet Mask 255.255.255.0.If you set your computer’s IP manually, it needs to be on the same segment.For example:• IP address 192.168.123.xxx (xxx can be any number between 2 and254 that is not used by another device)• Subnet Mask 255.255.255.0 (same as the SpaceLink Home Gateway )• Gateway 192.168.123.1 (this is the SpaceLink Home Gateway IP address)• DNS 192.168.123.1 (SpaceLink Home Gateway IP address or your own).
Chapter 2 - Installation2. Installation26 SpaceLink Home GatewayInstalling the Homegateway UtilitiesFollow these steps to install the SpaceLink Home Gateway Manager inMicrosoft Windows:(1) Insert the support CD and the autorunwill show. Double-click setup.exe ifyour autorun has been disabled.(2) Click Next after reading the welcomescreen.(3) Click Yes after reading the licenseagreement.(5) Click Next to accept the defaultprogram folder or enter another name.(4) Click Next to accept the defaultdestination folder or enter anothername.(6) Click Finish when setup is complete.
3. UtilitiesSpaceLink Home Gateway 27Chapter 3 - Home Gateway UtilitiesConnecting to the SpaceLink Web ManagerWired Ethernet ConnectionBesides using a network hub, you can also connect a LAN cable from yourcomputer’s network card to the Home Gateway using either a straight orcrossover cable because the SpaceLink Home Gateway LAN and WANRJ-45 ports have auto-crossover capability.Wireless ConnectionIf you are using a Notebook PC with a wireless adapter, you can connect tothe SpaceLink Homegateway Web Manager without a wired Ethernetconnection.Home Gateway DiscoveryRun the ASUS Homegateway Discovery from the Start menu and clickConfig on the device.Manually Entering the AddressYou can also open your PC’s web browser and enter the IP address of theASUS SpaceLink Home Gateway depending on the port you are using.3. SpaceLink Home Gateway UtilitiesAfter installation, you can launch the utilities through the Start menu.
3. Utilities28 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesWeb access through the WAN port (over the Internet) is disabled by defaultso that the above private IP can be used for configuration access. If Internetaccess through the WAN port is enabled by the user, port 8080 must beused for configuration access. In this case, you would enter the following:http://(WAN Port IP Address):8080 in your web browser.If your computer’s IP is not on thesame subnet as the SpaceLink HomeGateway, you will be asked to changeit. The IP address can be any numberfrom 2 to 254 that is not used byanother device.If your computer is connected to the WAN port usehttp://(WAN Port IP Address):8080If your computer is connected to the LAN port use:http://192.168.123.1Using a proxy server for yourLAN requires that you set an ex-ception for the SpaceLink HomeGateway or else connection willfail.
3. UtilitiesSpaceLink Home Gateway 29Chapter 3 - Home Gateway UtilitiesHome PageAfter logging in, you will see the ASUS HomeGateway home page.User Name and PasswordOnce connected, a window will askfor the User name and Password inorder to log in. The factory defaultvalues are “admin” and “admin”.If you cannot find any the SpaceLink Home Gateways due to a prob-lem in the IP settings, push and hold the “Restore” button over fiveseconds to restore factory default settings.
3. Utilities30 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesBasic SetupSelect Basic Setup from the menu on the left.Click Next to enter the wireless configuration page.Login PasswordYou can find “Login Password” on the Main Menu. This page will allowyou to change the default password “admin” (lower case) to any passwordof you choice. You can enter any usable characters between 1-16 characterslong (cannot be left blank). Click Modify button to save your new password.If you forget the SpaceLink Home Gateway’s password, you can reset theSpaceLink Home Gateway to its factory settings (see troubleshooting).Note: The password is case sensitive.
3. UtilitiesSpaceLink Home Gateway 31Chapter 3 - Home Gateway UtilitiesStatusThe Status page available from the Main Menu gives you all the necessaryinformation for monitoring the SpaceLink Home Gateway’s condition.See next page for information on this page.
3. Utilities32 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesStatus DetailsDetails of the Status page items are described in the configuration pagesfollowing this page.WirelessNumber of Associated Stations - Tells you how many wireless mobileclients are connected to the SpaceLink Home Gateway.LANDHCP Server - This shows either Enabled or Disabled.LAN Port Link State - Linked or Not Linked (indicates whether the cableis plugged in or not).WANWAN Port Link State - Linked or Not Linked (indicates whether the cableis plugged in or not).WAN Port Connection State: Disconnected, Connecting, OK (OKindicates that the IP address is working).Printer ServerConnected Printer Status: There are five possible statuses: Off-Line (noprinter), On-Line (ready), Error (problem), Out of Paper, Busy (someoneis printing).User in Service: Shows the IP address of the user when the status is busy.
3. UtilitiesSpaceLink Home Gateway 33Chapter 3 - Home Gateway UtilitiesBasic Setup - WirelessThis page allows you to configure the wireless settings. See next page fordescriptions on each setting.IMPORTANT: New settings will only take effect after clicking the “Fin-ish” button and waiting for the SpaceLink Home Gateway to restart.
3. Utilities34 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesSSID & ChannelThe SSID is an identification string of up to 32 ASCII characters thatdifferentiate one SpaceLink Home Gateway or Access Point from another.The SSID is also referred to as the “ESSID” or “Extended Service Set ID.”You can use the default SSID and radio channel unless more than one SpaceLinkHome Gateway or Access Point is deployed in the same area. In that case, youshould use a different SSID and radio channel for each SpaceLink HomeGateway or Access Point. All the SpaceLink Home Gateways and SpaceLink802.11b client adapters must have the same SSID to allow a wireless mobileclient to roam between the SpaceLink Home Gateways. By default, theSSID is set to “default”.ChannelIEEE 802.11b devices are direct sequence spread spectrum devices thatspread a radio signal over a range of frequencies. The range of frequenciesused by a direct sequence device is called a Channel.The IEEE 802.11b specification supports up to 14 overlapping Channelsfor radio communication. But only 11 Channels are supported in the UnitedStates and therefore on the SpaceLink Home Gateway. To minimizeinterference, configure each the SpaceLink Home Gateway to use Non-overlapping channels. Non-overlapping channels have 25Mhz separationbeginning at the first allowed channel for the country (for the US and mostof Europe, channels 1, 6 & 11 are used).Make sure that the SpaceLink Home Gateways sharing the same Channel(or Channels close in number) are as far away from each other as possible,based on the results of your site survey of the facility. You can find the sitesurvey utility in the SpaceLink PC card or CF card setup CD.Basic Data RateSelect “1, 2, 5.5 & 11Mbps” to maximize performance. Use “1 & 2 Mbps”only when backward compatibility is needed for some older wireless LANcards with a maximum bit rate of 2Mbps.The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5 Mbps,2 Mbps, and 1 Mbps. As a wireless mobile client travels further and furtheraway from the SpaceLink Home Gateway, the data rate automatically decreasesin order to maintain a usable radio connection. Therefore, a client that is closeto an the SpaceLink Home Gateway may operate at 11 Mbps, but a client thatis far away from the SpaceLink Home Gateway may operate at 2 Mbps.
3. UtilitiesSpaceLink Home Gateway 35Chapter 3 - Home Gateway UtilitiesSupported Clients802.11b products can operate at 11 Mbps, 5.5 Mbps, 2 Mbps or 1 Mbps. Thisallows 802.11b devices to communicate with any existing 802.11 direct sequencedevices that operate only at 1 or 2 Mbps. By default, the SpaceLink Home Gatewaywill support both 802.11b and 2 Mbps 802.11 direct sequence clients.WEPThe IEEE 802.11b standard specifies an optional encryption feature, knownas Wired Equivalent Privacy or WEP, that is designed to provide a wirelessLAN with a security level equal to what is found on a wired Ethernet network.WEP encrypts the data portion of each packet exchanged on the 802.11bnetwork using either a 64-bit or 128-bit encryption algorithm. In addition,WEP is also used in conjunction with the optional Shared KeyAuthentication algorithm to prevent unauthorized devices from associatingwith an 802.11b network.Enabling WEP can protect your data from eavesdroppers. If you do notneed this feature, select “no” to skip the following setting. The SpaceLinkHome Gateway supports both 64-bit and 128-bit encryption using the WiredEquivalent Privacy (WEP) algorithm. Select the type of encryption youwant to use (64 or 128 bit) and configure one to four WEP Keys. The “128-bit” method is more secure than the “64-bit”.64/128bits versus 40/104bitsYou may be confused about configuring WEP encryption, especially whenusing multiple wireless LAN products from different vendors. There aretwo levels of WEP Encryption: 64 bits and 128 bits.Firstly, 64 bit WEP and 40 bit WEP are the same encryption method andcan interoperate in the wireless network. This lower level of WEP encryptionuses a 40 bit (10 Hex character) as a “secret key” (set by user), and a 24 bit“Initialization Vector” (not under user control). This together makes 64bits (40 + 24). Some vendors refer to this level of WEP as 40 bits andothers refer to this as 64 bits. ASUS SpaceLink products use the term 64bits when referring to this lower level of encryption.Secondly, 104 bit WEP and 128 bit WEP are the same encryption methodand can interoperate in the wireless network. This higher level of WEPencryption uses a 104 bit (26 Hex character) as a “secret key” (set by user),and a 24 bit “Initialization Vector” (not under user control). This together
3. Utilities36 SpaceLink Home GatewayChapter 3 - Home Gateway Utilitiesmakes 128 bits (104 + 24). Some vendors refer to this level of WEP as 104bits and others refer to this as 128 bits. ASUS SpaceLink products use theterm 128 bits when referring to this higher level of encryption.Magic Word & GenerateAutomatically generate four WEP keys. A WEP key is either 10 or 26hexadecimal digits (0~9, a~f, and A~F) based on whether you select 64 bitor 128 bit in the WEP pull-down menu. Type a combination of up to 64letters, numbers, or symbols in the Magic Word column, then the SpaceLinkHome Gateway Manager uses an algorithm to generate four WEP keys forencryption. If you want to type in the keys manually, leave this field blank.The SpaceLink family of products all use the same algorithm to generatethe keys so that they can all use the same WEP key.Note: This function eases users from having to remember theirpasswords and is compatible to ASUS SpaceLink family of prod-ucts. But this is not as secure as manual assignment.WEP KeyAt most four keys can be set. A WEP key is either 10 or 26 hexadecimaldigits (0~9, a~f, and A~F) based on whether you select 64 bit or 128 bit inthe WEP pull-down menu. The home gateway and ALL of its wireless clientsMUST have at least the same default key.Default KeyThe Default Key field lets you specify which of the four encryption keysyou use to transmit data on your wireless LAN. As long as the SpaceLinkHome Gateway or wireless mobile client with which you are communicatinghas the same key in the same position, you can use any of the keys as thedefault key. If the home gateway and ALL of its wireless clients use thesame four WEP keys, select “key rotation” to maximize security. Otherwise,choose one key in common as the default key.Authentication MethodIt is suggested to select “Shared Key Only”. If “Open System Only” or“Shared Key and Open System” is used, the home gateway may acceptconnection requests from unauthorized wireless clients.Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.
3. UtilitiesSpaceLink Home Gateway 37Chapter 3 - Home Gateway UtilitiesBasic Setup - LAN ConfigurationThis page does not require any settings for general use.Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.
3. Utilities38 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWirelessLANBasic Setup - WAN ConfigurationThe settings that you need to perform will vary depending on the role thatyour SpaceLink Home Gateway will play.Network BackboneNo software setting is necessary in the SpaceLink Home Gateway.
3. UtilitiesSpaceLink Home Gateway 39Chapter 3 - Home Gateway UtilitiesInternet Service ProviderWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWANLANADSL or Cable ModemInternetWirelessAgent to an ISP
3. Utilities40 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesStatic IP AddressIP Address - Normally, this is Dynamic (because fixed IP accounts costmore) and should be set to Automatic IP. Do not use “Static IP” if yourISP’s documentation does not mention an IP Address. If your ISP providedan IP Address with instructions to use it, select Static IP from “IP AddressingMethod” and enter the address into the provided field.PPPoE AccountUser Name - The name of your Internet account provided by your ISP.Some ISPs work with the entire account name along with the hosting domain(such as yourname@yourdomain.com) and others require that you enteronly the account name (yourname). See the example above.Agent to an ISP (Cont.)
3. UtilitiesSpaceLink Home Gateway 41Chapter 3 - Home Gateway UtilitiesClick the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.Password - Enter the password for your Internet account.Retype your password - Re-enter the password for confirmation.DNS SettingsDNS Server - Normally this is automatic and you would answer “NO” tothe question about manually assigning DNS. If you are given instructionsfrom your ISP to enter DNS addresses, select “YES” to manually assigningDNS and enter the IP addresses here. You can set the DNS server anytimeusing any connection type (Static IP, PPPoE, or Automatic IP).Agent to an ISP (Cont.)
3. Utilities42 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesNetwork BackboneWired ClientWireless ClientWireless ClientSpaceLink Home GatewayWANLANWirelessTo connect to an existing network, the IP address of the home gateway canbe assigned manually or automatically obtained from a DHCP server. Inthe first case, fill in the IP address and the DNS address(es).Agent to Another NetworkAutomatic IPThis parameter determines if the SpaceLink Home Gateway will send outa DHCP request during bootup. If you have a DHCP server on the network,set this option so that the SpaceLink Home Gateway can receive anautomatic IP address assignment.If you have a DHCP (Dynamic Host Configuration Protocol) server on thenetwork, then the DHCP server will automatically assign the SpaceLink HomeGateway an IP address when the SpaceLink Home Gateway is powered up. Todetermine what IP address has been assigned to the SpaceLink Home Gateway,review the IP address on the “Status” page available on the “Main Menu”.
3. UtilitiesSpaceLink Home Gateway 43Chapter 3 - Home Gateway UtilitiesStatic IPThe SpaceLink Home Gateway also accepts a static IP address. You maymanually configure the IP address and subnet mask on the “IP Config”page. Enter an IP address and a subnet mask in the field provided to assignthe SpaceLink Home Gateway a static IP address. If you don’t now yourGateway setting, leave it empty (not 0.0.0.0).
3. Utilities44 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesFirewallThe SpaceLink Home Gateway does not only use basic NAT to protectyour local network. The SPI (Stateful Packet Inspection) firewall filtersout advanced forms of attacks from the Internet. A SPI firewall remembersthe context of connections and continuously updates this information indynamic connection tables.Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.Select the security level for the firewall that you require. “Low” should begood enough for most home users. “Medium” and “High” levels can providemore protection for your local network but they may also stop you fromexecuting some Internet applications. These problems can be overcomethrough advanced configuration options by clicking on the Advanced button.
3. UtilitiesSpaceLink Home Gateway 45Chapter 3 - Home Gateway UtilitiesTo add security, the SpaceLink Home Gateway has the ability to onlyassociate with or not associate with wireless mobile clients that have theirMAC address entered into this page.The default setting of “Disable” will allow any wireless mobile client toconnect. “Accept” will only allow those entered into this page to connect.“Reject” will prevent those entered into this page from connecting.Adding a MAC AddressTo add a MAC address, enter the 12 hexadecimal characters into the white boxnext to “MAC Address:” and click the Add button. The MAC address will beplaced in the control list below. Only a total of 31 MAC addresses can be enteredinto this page so determine which will be the lesser; those you wish to accept orthose you wish to reject and click the appropriate “MAC Access Mode”.(Redundant portion intentionally removed)Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.Wireless Access Control
3. Utilities46 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesIP Addressing Method - This displays the current selection in the BasicSetup WAN Configuration.PPPoE OptionsThe SpaceLink Home Gateway can automatically terminate the connectionto your Internet Service Provider (ISP) when the connection is idle over aspecific time.Advanced WAN ConfigurationClick the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.
3. UtilitiesSpaceLink Home Gateway 47Chapter 3 - Home Gateway UtilitiesDisconnect when idle time exceeds seconds - Enter the number of secondsof inactivity to disconnect you from your ISP.Always connected - This will always keep you connected to your ISP andreconnect if connection fails.The following two items may be specified by some ISPs. Check with yourISP and fill them in if required.Service Name - Fill this in if required by your ISP.Access Concentrator Name - Fill this in if required by your ISP.Note: The above options are valid only when PPPoE is selected asthe WAN IP Addressing Method in Basic Setup. Otherwise they willbe grayed out.Special RequirementsThe following two items may be specified by some ISPs. Check with yourISP and fill them in if required.Host Name - Fill this in if required by your ISP.MAC Address - Fill this in if required by your ISP.WARNING: A wrong MAC address may lead to a network disorder.
3. Utilities48 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesVirtual ServerTo make services, like WWW, FTP, provided by a server in your localnetwork accessible for outside users, you should specify a local IP addressto the server. Then, add the IP address and network protocol type, portnumber, and name of the service in the following list. Based on the list, thegateway will forward service request from outside users to the correspondinglocal server.Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.
3. UtilitiesSpaceLink Home Gateway 49Chapter 3 - Home Gateway UtilitiesList of ServersEnter the IP address of the servers under the SpaceLink Home Gateway.Select a protocol, port number, and enter any description you want for theservice name.Removing an EntryTo remove one of the 8 entries, select the “Item” (1 2 3 4 5 6 7 8) numberand click the Remove button.Adding an EntryBesides entering the data manually, you can also select from a commonlyused entries. To add an often used service to one of the 8 entries, select theservice {7 (ECHO) 21 (FTP) 23 (TELNET) 25 (SMTP) 53 (DNS) 79(FINGER) 80 (HTTP) 110 (POP3) 161 (SNMP) 162 (SNMP TRAP)} andselect the “Item” (12 3 4 5 6 7 8). Click the Add button to replace the entrythat you have selected.
3. Utilities50 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesSpecial ApplicationEnable or disable specific application traffic to pass through the homegateway despite any firewall settings in the SpaceLink Home Gateway.Application Status - These commonly used applications are normallyallowed to pass through the firewall. Choose Disable if you do not wantusers to use the following applications:ICQ, MSN, FTP, TELNET, MIRC, REALPLAYER, QUICKTIME,NETMEETING.Click the “Finish” button to save your new settings and restart theSpaceLink Home Gateway or click “Save” and restart later.
3. UtilitiesSpaceLink Home Gateway 51Chapter 3 - Home Gateway UtilitiesFirewall Bypass ZoneThe medium or high security level may hinder some normal traffic frompassing through the firewall. A local machine with an IP address in thefollowing list will be only protected by the low security level despite of thefirewall settings.Firewall Bypass IP Address - Enter the IP address of the computer youwish to have access through the firewall.
3. Utilities52 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesPPTP ServerThe Point-to-Point Tunneling Protocol (PPTP) is used to encrypt network datatraffic. For remote users who want to access the local network through theInternet, it secures your data against eavesdroppers. For local wireless users, itprovides an extra protection other than WEP. The home gateway supports upto 8 concurrent PPTP connections. To establish a connection with the homegateway, a user should use a valid account in the following list.AccountAccount ID - Enter name or ID number.Password - Enter password.Account List - Click the Add button to move the Account ID and Passwordentries into this list.
3. UtilitiesSpaceLink Home Gateway 53Chapter 3 - Home Gateway UtilitiesFirmware UpgradeThis page reports the Flash Code (Firmware) version installed in theSpaceLink Home Gateway. Periodically, a new Flash Code is available forthe SpaceLink Home Gateways on ASUS’s Web site. You can update theSpaceLink Home Gateway’s Flash Code using the Firmware Upgrade pageunder the Advanced Setup menu of the Web Manager. If you areexperiencing a problem with your SpaceLink equipment, a TechnicalSupport representative may ask you to report the device’s Flash Code(Firmware) version.The firmware upgrade takes approximately 60 to 90 seconds. When thefirmware upgrade is completed, you will be directed to the home page.
3. Utilities54 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesRestoring Factory Default SettingsWeb ManagerYou can reset all settings to their factory defaults through the web managerusing the “Factory Default” page in “Advanced Setup”. Click the Restorebutton and wait about 30 seconds before trying to access the SpaceLinkHome Gateway.HardwareYou can reset all settings to their factory defaults manually by pushing the“Restore” button in a hole on the back of the SpaceLink Home Gatewaywhile it is ON. Use a pen or straightened paper clip to hold the “Restore”button depressed over 5 seconds until all the LEDs on the front of theSpaceLink Home Gateway start blinking. Release the button and theSpaceLink Home Gateway will reboot.You will be notifiedwhen factorydefault settingsare restored whileusing the webmanager.
3. UtilitiesSpaceLink Home Gateway 55Chapter 3 - Home Gateway UtilitiesFirmware RestorationThis utility will automatically search out failed SpaceLink Home Gatewaysand upload a firmware that you specify. The process takes about 3 to 4minutes and during this process the PWR, AIR, and WAN LEDs will remainlit while the LAN LED will flash slowly.The Firmware Restoration utility is an emergency rescue tool to restore aSpaceLink Home Gateway which has failed during a previous firmwareupload. A failed firmware upgrade will cause the SpaceLink Home Gatewayto enter a failure mode, waiting for the user to use the Firmware Restorationutility to find and upload a new firmware. This is not a firmware upgradeutility and cannot be used on a working SpaceLink Home Gateway. Normalfirmware upgrades must be done through the web manager.Using a HubIf you have problems upload a firmware while using a network hub, tryconnecting your computer directly to the LAN port. Either 10Base-T or100Base-TX connections will work.
3. Utilities56 SpaceLink Home GatewayChapter 3 - Home Gateway Utilities(1) Run the “Add Printer Wizard” from Start| Printers and Faxes | Add Printer. (2) Choose “Install by the Add PrinterWizard”.(3) Choose “Local printer attached to thiscomputer”. (4) Choose “Remote Port (Printer SharingPort)”. If this is not available, select LPT1.Printer Setup WizardThis utility helps you setup your computers to utilize the printer serverfunction of the SpaceLink Home Gateway.Add Printer WizardYou should add your printer to your computer to simplify the SpaceLink HomeGateway Printer Setup Wizard. If you run the “Printer Setup Wizard” withoutyour printer driver installed, it will direct you to the “Add Printer Wizard”.
3. UtilitiesSpaceLink Home Gateway 57Chapter 3 - Home Gateway Utilities(5) Find your manufacturer and model.Click Have Disk if you cannot find it inthe list and use the driver provided withyour printer.(6) Click Next to set this as your defaultprinter.(7) You can print a test page. (8) Click Finish to close the wizard.Your printer will show in the “Printers andFaxes” window and the check mark showsthat it is set as your default printer.
3. Utilities58 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesPrinter Setup WizardThe wizard will explore all available SpaceLink Home Gateways and modelinformation of the printers attached to them in your local network.(2) If the printer is found, the name of theprinter will be shown on this screen.(1) If you already have your printer installedon your printer port (LPT1), it will makethis setup process much easier. Seenext page for instructions. Run thePrinter Setup Wizard from the WindowsStart menu.(3) This setup wizard will change yourdefault printer to use “Remote Port”which is serviced by the SpaceLinkHome Gateway.(4) Click Done when setup is complete.Note: If there is anerror communicatingwith the printer, youwill get this message.Make sure that the printer is ON, ready, andconnected. Click Back and Next.
3. UtilitiesSpaceLink Home Gateway 59Chapter 3 - Home Gateway UtilitiesVerifying Your PrinterAfter setting up the printer, a printer iconwill appear in Windows’ “Printers andFaxes”. Right click the printer icon andchoose Properties to configure the printer.If your printer was previously setup, theSpaceLink Home Gateway printer setupwizard will change your printing port fromyour local LPT1 (parallel) port to “RemotePort”. If necessary, you can change thisback at anytime or use Windows “AddPrinter” to setup another printer onwhatever port you require.When properly setup, the SpaceLink HomeGateway will show the printer name in the“Homegateway Discovery” utility and show“on-line” under the “Printer Server” on the“Status” page of the web manager.
3. Utilities60 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesVPN ClientA virtual private network (VPN) is the extension of a private network thatencompasses links across shared or public networks like the Internet. AVPN enables you to send data between two computers across a shared orpublic intranet in a manner that emulates the properties of a point-to-pointprivate link. The VPN Client utility help you to create and configure theVPN connections.Starting VPN ClientClick the Windows Start button, point to Programs, point to ASUS WirelessHomegateway Utilities, and then click VPN Client.Main WindowThe main windows shows all the available VPN connections on your system.Click Make New Connection to open the VPN Connection Wizard. Followthe instructions on the next page to create a new VPN connection. Whenyou finish, the VPN connection name will appear in the list box.
3. UtilitiesSpaceLink Home Gateway 61Chapter 3 - Home Gateway UtilitiesVPN Connection WizardThe VPN Connection Wizard helps you create a new virtual private network(VPN) connection. On the main window, double-click Make NewConnection from the connections list box, then the VPN Connection Wizarddialog box appears. Follow the on-screen instructions to specify settingsfor your connection.Enter the host name or IP address of theremote VPN server to which you wish toconnect, and then click Next.Enter a unique name for this newconnection entry. The name is used toidentify this connection. This name is notcase-sensitive. Click Next.Enter the user name/password for thisconnection, and then click Next.If you want to connect now, check ConnectNow and then click Finish.After the VPN Connection Wizard dialogbox closes, your new connection entryappears in the ASUS VPN Client's mainwindow. Select a connection name andclick Edit to view the properties.
3. Utilities62 SpaceLink Home GatewayChapter 3 - Home Gateway UtilitiesConnection PropertiesSelect a connection name in the VPN Client window and click Edit.Connection NameTypes the name you want to use forthis connection entry in the Namefield. The name is used to identifythis connection. This name is notcase-sensitive.PropertiesOpens the standard DUN propertiesdialog for the currently selectedconnection. Let user to change or setparameters for a connection entry.When you finished setting parameters, click OK to close Properties dialogbox and save your changes. To discard your changes, click Cancel to closeProperties dialog box without saving your changes.Dialing OptionsUser Name: Provides a space for you to type your user name for thisconnection.Password: Provides a space for you to type your password for thisconnection. The password will be shown as asterisks for security.Prompt for name and password before dialing: Specifies whether torequest identity authentication information before attempting to connect. Thisinformation can include a user name and password. If this option is checkedthen a dialog box will be displayed before the connection is dialed, promptingfor the user name and password. If you have already entered the user nameand/or password in the edit boxes described above, then you should uncheckthis box. If you want to leave the password blank on this properties page andenter your password every time you use this connection, then you should checkthis box.Auto connect to this connection when opened: When this feature isenabled, it will automatically start connecting to this VPN connection whenthe VPN client utility opens.
3. UtilitiesSpaceLink Home Gateway 63Chapter 3 - Home Gateway UtilitiesAdvanced PropertiesHost name or IP address ofdestinationEnter the host name or IP address ofthe remote VPN server to which youare connecting, and then click Next.Dial another connection firstCheck this checkbox if you want theVPN connection to first make a call toan ISP. You must then select a dial-upconnection from the drop-down list box.Dialing a ConnectionTo dial a VPN connection, select a connection name from the connectionslist box and click the Connect button. The Connect... window will show. Ifyou only see the “Hang Up” button on the main window, that means youare already connected to the selected VPN connection. Click Hang Up todisconnect from the currently connected remote server.ButtonsConnect - Connect to remote server.Hang Up - Disconnect from remoteserver.Edit - Displays the standard Dial-UpNetworking properties dialog for thecurrently selected connection entry.Delete - Deletes the selected connection entry.Exit (or press Esc) - Closes VPN Client utility.
4. Performance64 SpaceLink Home GatewayChapter 4 - Wireless Performance4. Wireless PerformanceThis section provides the user with ideas for how to improve the performanceof a SpaceLink 802.11b network.Site TopographyFor optimal performance, locate wireless mobile clients and the SpaceLinkHome Gateways away from transformers, heavy-duty motors, fluorescentlights, microwave ovens, refrigerators, and other industrial equipment.Signal loss can occur when metal, concrete, walls or floors blocktransmission. Locate the SpaceLink Home Gateways in open areas or addthe SpaceLink Home Gateways as needed to improve coverage.Microwave ovens operate in the same frequency band as the SpaceLinkHome Gateway. Therefore, if you use a microwave within range of theSpaceLink Home Gateway you may notice network performancedegradation. However, both your microwave and your the SpaceLink HomeGateway will continue to function.Site SurveysA site survey (utility provided with the SpaceLink PC card and CF card)analyzes the installation environment and provides users withrecommendations for equipment and its placement. The optimum placementof 11 Mbps Home Gateways differs for 1 or 2 Mbps Home Gateways,because the locations and number of Home Gateways required are different.
4. PerformanceSpaceLink Home Gateway 65Chapter 4 - Wireless PerformanceRangeEvery environment is unique with different obstacles, barriers, materials,etc. and, therefore, it is difficult to determine the exact range that will beachieved without testing. However, has developed some guidelines toestimate the range that users will see when the product is installed in theirfacility, but there are no hard and fast specifications.Radio signals may reflect off of some obstacles or be absorbed by othersdepending on their construction. For example, with two 802.11b radios,you may achieve up to 1000' in open space outdoors where two deviceshave a line of sight, meaning they see each other with no obstacles. However,the same two units may only achieve up to 300' of range when used indoors.The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5 Mbps,2 Mbps, and 1 Mbps. Operation at 1 Mbps provides greater range thanoperation at 11 Mbps. The SpaceLink Home Gateway will automaticallyadjust the data rate to maintain a usable radio connection.Therefore, a client that is close to the SpaceLink Home Gateway may operateat 11 Mbps while a client that is on the fringe of coverage may operate at 1Mbps. As mentioned earlier, you can configure the data rates that theSpaceLink Home Gateway will use. Note that if you limit the range of datarates available to the SpaceLink Home Gateway, you may reduce theeffective wireless range of the SpaceLink 802.11b products.
5. Troubleshooting66 SpaceLink Home GatewayChapter 5 -Troubleshooting5. TroubleshootingThe SpaceLink Home Gateway is designed to be very easy to install andoperate. However, if you experience difficulties, use the information in thischapter to help diagnose and solve problems. If you cannot resolve a problem,contact Technical Support, as listed on the front of this manual.Common Problems and SolutionsProblemSpaceLink Home Gateway does not power up:Solution• Check for faulty the SpaceLink Home Gateway power supply bymeasuring the output voltage with an electrical test meter.• Check failed AC supply (power outlet)ProblemCannot communicate with the SpaceLink Home Gateway through a wirednetwork connection.Solution• Verify network configuration by ensuring that there are no duplicate IPaddresses. Power down the device in question and ping the assigned IPaddress of the device. Ensure no other device responds to that address.• Check that the cables used have proper pin outs and connectors or useanother LAN cable.• Check that the hub, switch, computer, or modem connected to the WANport of the SpaceLink Home Gateway supports 10Mbps speed.This is the LED result if you connect the SpaceLink Home Gateway to a(n):Auto 10/100 Mbps Hub Pure 100 Mbps HubHub LED ON OFFHome Gateway WAN LED ON OFFSo you will not know if the connection is bad from the SpaceLink HomeGateway Link LED alone, you will have to look at the Hub LED if you arenot sure what kind of hub the SpaceLink Home Gateway is attached to.
5. TroubleshootingSpaceLink Home Gateway 67Chapter 5 -TroubleshootingProblemThe SpaceLink Home Gateway Web Manager still cannot find or connect tothe SpaceLink Home Gateway after verifying the IP address and LAN cable,changes cannot be made, or password is lost.SolutionIn case the SpaceLink Home Gateway is inaccessible, you canrestore the SpaceLink Home Gateway’s factory default settings.Use a straightened paper clip to press the button located in thehole labeled “Reset” on the back of the SpaceLink Home Gatewayand keep it depressed over 5 seconds. The LEDs will flash whenreset is successful.Reset to DefaultsThe following are factory default values. These values will be present when youfirst receive your the SpaceLink Home Gateway, if you push the reset button onthe back of the SpaceLink Home Gateway over 5 seconds, or if you click the“Restore” button on the “Factory Default” page under “Advanced Setup”.Name Default ValueUser Name adminPassword adminEnable DHCP YesIP Address 192.168.123.1Subnet Mask 255.255.255.0DNS Server 1 (blank)DNS Server 2 192.168.123.1SSID defaultDomain Name home
5. Troubleshooting68 SpaceLink Home GatewayChapter 5 -TroubleshootingProblemMy 802.11b PC Card will not associate with the SpaceLink Home Gateway.SolutionFollow these steps:1. Try to bring the devices closer together; the PC Card may be out ofrange of the SpaceLink Home Gateway.2. Confirm that the SpaceLink Home Gateway and PC Card have the sameSSID.3. Confirm that the SpaceLink Home Gateway and PC Card have the sameEncryption settings, if enabled.4. Confirm that the SpaceLink Home Gateway’s Air and Link LEDs aresolid green.5. Confirm that the authorization table includes or exclucdes the MACaddress of the SpaceLink PC card if “Wireless Access Control” isenabled.ProblemThe throughput seems slow.SolutionTo achieve maximum throughput, verify that your antennas are well-placed,not behind metal, and do not have too many obstacles between them. Ifyou move the client closer to the SpaceLink Home Gateway and throughputincreases, you may want to consider adding a second the SpaceLink HomeGateway and implementing roaming.• Check antenna, connectors and cabling.• Verify network traffic does not exceed 37% of bandwidth.• Check to see that the wired network does not exceed 10 broadcastmessages per second.• Verify wired network topology and configuration.
5. TroubleshootingSpaceLink Home Gateway 69Chapter 5 -TroubleshootingProblemHow do I upgrade the firmware on the SpaceLink Home Gateway?SolutionPeriodically, a new Flash Code is available for the SpaceLink HomeGateways on the ftp site at ftp://ftp.asus.com. Ideally, you should updatethe SpaceLink Home Gateway’s Flash Code using “Firmware Upgrade”on the “Advanced Setup” menu of the web manager.ProblemI cannot find the SpaceLink Home Gateways using the SpaceLink Home GatewayDiscovery.SolutionTo configure the SpaceLink Home Gateway through a wireless LAN card,your computer must be in the same subnet of the SpaceLink Home Gateway.You cannot find the SpaceLink Home Gateways with subnet different fromyour computer within the same gateway. You must change your computerto the same subnet as the SpaceLink Home Gateway. The factory defaultsubnet of the SpaceLink Home Gateway is "192.168.123.1".In Windows NT/2000/XP, you must login with Administrator privi-leges so that all functions of the SpaceLink Home Gateway Man-ager can function correctly. If you do not login as a member of theAdministrator group, you cannot change IP settings but can stillrun the Discovery utility if the original IP setting is correct.
Appendix70 SpaceLink Home GatewayAppendix6. AppendixOperating frequency rangeThe DSSS PHY shall operate in the frequency range of 2.4 GHz to 2.4835GHz as allocated by regulatory bodies in the USA and Europe or in the 2.471GHz to 2.497 GHz frequency band as allocated by regulatory authority in Japan.Number of operating channelsThe channel center frequencies and CH ID numbers shall be as shown below.The FCC (US), IC (Canada), and ETSI (Europe) specify operation from 2.4GHz to 2.4835 GHz. For Japan, operation is specified as 2.471 GHz to 2.497GHz. France allows operation from 2.4465 GHz to 2.4835 GHz, and Spainallows operation from 2.445 GHz to 2.475 GHz. For each supported regulatorydomain, all channels marked with “Yes” shall be supported.In a multiple cell network topology, overlapping and/or adjacent cells usingdifferent channels can operate simultaneously without interference if thedistance between the center frequencies is at least 30 MHz. Channel 14shall be designated specifically for operation in Japan.DSSS PHY frequency channel plan(Regulatory Domains)CH ID Frequency X’10' X’20' X’30' X’31' X’32' X’40'FCC IC ETSI Spain France MKK1 2412 MHz Yes Yes Yes - - Yes2 2417 MHz Yes Yes Yes - - Yes3 2422 MHz Yes Yes Yes - - Yes4 2427 MHz Yes Yes Yes - - Yes5 2432 MHz Yes Yes Yes - - Yes6 2437 MHz Yes Yes Yes - - Yes7 2442 MHz Yes Yes Yes - - Yes8 2447 MHz Yes Yes Yes - - Yes9 2452 MHz Yes Yes Yes - - Yes10 2457 MHz Yes Yes Yes Yes Yes Yes11 2462 MHz Yes Yes Yes Yes Yes Yes12 2467 MHz - - Yes - Yes Yes13 2472 MHz - - Yes - Yes Yes14 2484 MHz - - - - - Yes
AppendixSpaceLink Home Gateway 71AppendixSpaceLink Home Gateway SpecificationsThe following technical specification is for reference purposes only. Actualproduct’s performance and compliance with local telecommunicationsregulations may vary from country to country. ASUS will only ship productsthat are type approved in the destination country.WAN Ethernet Port Support: Both Ethernet and 802.3 with Max. Bit Rate 10 MbpsAuto crossover function (MDI-X) Connector: RJ45 for 10Base-TLAN Ethernet Port Support: Both Ethernet and 802.3 with Max. Bit Rate 100MbpsFour Port Switch with Auto crossover function (MDI-X) Connector: Four RJ45 for 10Base-T or 100Base-TXWireless Freq. Band: 2400-2497 MHzAntenna: 2 Diversity Antennas Modulation: Direct Sequence Spread Spectrum (CCK, DQPSK, DBPSK) Data rate: 1, 2, 5.5, 11 Mbps Output Power: 15 dBmPrinter port Support: Standard Print Port (SPP) Connector: 25 PIN D-SUB FEMALEDC Power Adapter AC Input: 100V~240V(50~60HZ) DC Output: 5V with max. 2A currentVisible LEDs PWR (Power), AIR, WAN, LAN,LPT, 10/100 indication for LAN PortsReset button Push for 5 seconds to restore factory settingEnvironmentOperating Temp.: 0 to 50 o C with 1 meter/sec airflow Storage Temp.: -20 to 70 o C Operating Humidity: 0 to 95% (Non-condensing) Storage Humidity: 0 to 95%Regulation Certification EMI: FCC Part 15 Class B; VCCI Class B;ETSI 300 328; CISPR 22 Class B , CE Mark,FCC Part 68, UL1950, CSA22.2, EN60950MTBF More than 10,000 hrs/failure
Appendix72 SpaceLink Home GatewayAppendixGlossaryAccess Point - An access point is a device that allows wireless clients toconnect to other wireless clients and it acts as a bridge between wirelessclients and a wired Ethernet network.Broadband - A type of data transmission in which a single medium (suchas cable) carries several channels of data at once.Channel - Wireless access points allows you to choose different radiochannels in the wireless spectrum. A wireless LAN device operates withinthe 2.4 GHz spectrum and a channel is within a FCC specified range, similarto any radio channel.Client - A client is the desktop or mobile PC that is connected to yournetwork.Device name - Also known as DHCP client ID or network name. Sometimesprovided by an ISP when using DHCP to assign addresses.DHCP (Dynamic Host Configuration Protocol) - This protocol allows acomputer (or many computers on your network) to be automatically assigneda single IP address from a DHCP server.DNS Server Address (Domain Name System) - DNS allows Internet hostcomputers to have a domain name and one or more IP addresses. A DNSserver keeps a database of host computers and their respective domain namesand IP addresses, so that when a user enters a domain name into the Internetbrowser, the user is sent to the proper IP address. The DNS server addressused by the computers on your home network is the location of the DNSserver your ISP has assigned.DSL Modem (Digital Subscriber Line) - A DSL modem uses your existingphone lines to transmit data at high speeds.Encryption - This provides wireless data transmissions with a level ofsecurity.ESSID (Extended Service Set Identifier) - You must have the same ESSIDentered into the gateway and each of its wireless clients. The ESSID is aunique identifier for your wireless network.Ethernet - Ethernet networks are connected by cables and hubs, and movedata around. This is a standard for computer networks.
AppendixSpaceLink Home Gateway 73AppendixFirewall - A firewall determines which information passes in and out of anetwork. NAT can create a natural firewall by hiding a local network’s IPaddresses from the Internet. A Firewall prevents anyone outside of yournetwork from accessing your computer and possibly damaging or viewingyour files.Gateway - A network point that manages all the data traffic of your network,as well as to the Internet and connects one network to another.IEEE - The Institute of Electrical and Electronics Engineers. The IEEEsets standards for networking, including Ethernet LANs. IEEE standardsensure interoperability between systems of the same type.IP Address (Internet Protocol) - An IP address consists of a series of fournumbers separated by periods, that identifies a unique Internet computerhost, allowing messages intended for that computer to be delivered to thecorrect destination.ISP (Internet Service Provider) - An ISP is a business that allowsindividuals or businesses to connect to the Internet. Users log on to theInternet using an account with an ISP or Internet Service Provider. ISPscan serve IP addresses dynamically, or assign static (fixed) IP addresses toindividual computers.ISP Gateway Address - The ISP Gateway Address is an IP address for theInternet router. This address is only required when using a cable or DSLmodem.LAN (Local Area Network) - A LAN is a group of computers and devicesconnected together in a relatively small area (such as a house or an office).Your home network is considered a LAN.MAC Address (Media Access Control) - A MAC address is the hardwareaddress of a device connected to a network.NAT (Network Address Translation) - NAT masks a local network’s groupof IP addresses from the external network, allowing a local network ofcomputers to share a single ISP account. This process allows all of thecomputers on your home network to use one IP address. This will enableaccess to the Internet from any computer on your home network withouthaving to purchase more IP addresses from your ISP.PC Card - This is an Ethernet card that connects to the PCMCIA slot onyour Notebook PC. This enables the computer to communicate with wirelessaccess points.
Appendix74 SpaceLink Home GatewayAppendixPPP (Point-to-Point Protocol) - PPP is a protocol for communicationbetween computers using a serial interface, typically a personal computerconnected by phone line to a server.PPPoE (Point-to-Point Protocol over Ethernet) - Point-to-Point Protocolis a method of secure data transmission. PPP using Ethernet to connect toan ISP.Subnet Mask - A subnet mask is a set of four numbers configured like anIP address. It is used to create IP address numbers used only within aparticular network.TCP/IP (Transmission Control Protocol/Internet Protocol) - This is thestandard protocol for data transmission over the Internet. Protocols used toconnect hosts on the Internet.WAN (Wide Area Network) - A system of LANs, connected together. Anetwork that connects computers located in separate areas, (i.e., differentbuildings, cities, countries). The Internet is a wide area network.WECA (Wireless Ethernet Compatibility Alliance) - An industry groupthat certifies cross-vender interoperability and compatibility of IEEE802.11b wireless networking products and to promote that standard forenterprise, small business, and home environments.WLAN (Wireless Local Area Network) - This is a group of computersand other devices connected wirelessly in a small area. A wireless networkis referred to as LAN or WLAN.

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