Linksys WAP51AB User's Manual
Contents
1. s firmware be sure to download the firmware from Linksys s website at www linksys com Once that is done click the Upgrade Firmware link on the Help Tab This will bring up the screen shown in Figure 6 10 ve deb ponte wipri api Type in the location of Feri fei bat the firmware s file or 2 Ca fea gee amp click the Browse but eed IE TT ton to find the file Then click the Upgrade Fresnes Upgrade button to upgrade the firmware e Legs ang Ury eiry Brent map Labo a fee cute panne ot Len wT the power ar pese the meet bahari Figure 6 10 The Filter Tab The Filter tab shown in Figure 6 11 allows you to block and allow certain computers by their MAC Address from communicating with the Access Point To enable filtering of computers by their MAC Addresses click the Enable radio button To disable this feature click the radio button by Disable Type the MAC Addresses for those PCs you wish to allow access to the Access Point in the MAC Address fields As long as Filtering is enabled PCs with MAC Addresses not entered in the MAC Address field will not be allowed to communicate with the Access Point 23 Be GS er Foie ob Gi a D Ph set gyre free i LA lowers Filters enable you to slow certain computers by their MAC Addreae Filters pa coreuriemte with he Acces Pabat Falbaind COMITE Enabke Ombabk app Caron Cine He Dual Band Wreless Access Point E cet m ip Do2. RESPONSIBLE FOR SHIPPING AND HANDLING CHARGES PLEASE CALL LINKSYS FOR MORE DETAILS 47 48 Instant Wreless Series Appendix Contact Information For help with the installation or operation of this product contact Linksys Technical Support at one of the phone numbers or Internet addresses below Sales Information 800 546 5797 LINKSYS Technical Support 800 326 7114 RMA Issues 949 261 1288 Fax 949 261 8868 Email support linksys com Web http www linksys com FTP Site ftp linksys com LALINECSYS http www linksys com Copyright 2002 Linksys All Rights Reserved
3. 10 characters in length for 64 bit encryption 26 characters in length for 128 bit encryption or 32 characters in length for 152 bit encryption All points in your wireless network must use the same WEP key to utilize WEP encryption Then click the Next button to continue or Back to return to the previous page iik Gya heckeli Mirnim asia TU Dual Band Wireless Access Point Security iptonal Ce ee eee ee bad BF on eee et oe Pe oe ib pa ete ac el cade id laa PA bry Eu F Fae oe Me Be Pe AL F ee eee ATOR oe AP george dhh pa g opr Ba H p H pes ere pear Tip iniii watery ir AE in Pee Tip cea D ee PS DA ie PER ey ery E feet Fee F haranie Le ib gl rer PL came Len FE mapin oD are ri L hd rompu imi A es Ba ny gi Por ag paper De FE aaa Teal ahi E CC der POLE Liy aT Figure 5 7 11 Instant Wreless Series As shown in Figure 5 8 the Basic Settings screen for your 2 4 GHz 802 11b wireless products will appear Enter your wireless network s SSID and select the channel at which the network broadcasts its wireless signal Then click the Next button to continue or Back to return to the pre vious page e SSID The SSID is the unique name shared among all points in a wire less network The SSID must be identical for all points in the wireless network It is case sensitive and must not exceed 32 characters which may be any keyboard character Make sure this setting is the same for all points in your wire
4. 11b 11 Channels US Canada 13 Channels Europe 14 Channels Japan One 10 100 RJ 45 Port One Power Port One Reset Button One Power Switch UTP CAT 5 or better Up to 54Mbps up to 72 Mbps in Turbo Mode 802 11a 18dBm 802 11b 15dBm Power Diag 802 1 1a Act Link 802 11b Act Link LAN Link Act Full Col 100 45 Instant Wreless Series Environmental 46 Dimensions 7 31 x 1 88 x 6 88 186 mm x 48 mm x 175 mm Antenna Height 4 5 114 mm Unit Weight 15 oz 0 42 kg Power External 5V DC 2 5A Certifications FCC Canada Operating Temp 0 C to 40 C 32 F to 104 F Storage Temp 20 C to 70 C 4 F to 158 F Operating Humidity 10 to 85 Non Condensing Storage Humidity 5 to 90 Non Condensing Appendix E VVarranty Infomation BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE FROM THE PRODUCT S PACKAGING ON HAND WHEN CALLING RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE IN NO EVENT SHALL LINKSYS S LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT FROM DIRECT INDIRECT SPECIAL INCI DENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT ITS ACCOMPANYING SOFTWARE OR ITS DOCUMENTATION LINKSYS DOES NOT OFFER REFUNDS FOR ANY PRODUCT LINKS YS OFFERS CROSS SHIPMENTS A FASTER PROCESS FOR PRO CESSING AND RECEIVING YOUR REPLACEMENT LINKSYS PAYS FOR UPS GROUND ONLY ALL CUSTOMERS LOCATED OUTSIDE OF THE UNITED STATES OF AMERICA AND CANADA SHALL BE HELD
5. Can Instant Wireless products support file and printer sharing Instant Wireless products perform the same function as LAN products Therefore Instant Wireless products can work with Netware Windows NT 2000 or other LAN operating systems to support printer or file sharing What is WEP WEP is Wired Equivalent Privacy a data privacy mechanism based on a 40 bit shared key algorithm as described in the IEEE 802 11 standard What is a MAC Address The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device such as a network adapter that allows the network to identify it at the hardware level For all practical pur poses this number is usually permanent Unlike IP addresses which can change every time a computer logs on to the network the MAC address of a device stays the same making it a valuable identifier for the network How do I avoid interference Using multiple Access Points on the same channel and in close proximity to one another will generate interference When employing multiple Access Points be sure to operate each one on a different channel frequency How do I reset the Access Point Press the Reset button on the back of the Access Point for about ten seconds This will reset the unit to its default settings How do I resolve issues with signal loss There is no way to know the exact range of your wireless network without test ing Every obstacle
6. Subnet Mask and enter a unique access point name for the Access Point appropriate to your network Then click the Next button to continue or Back to return to the previous page e IP Address This IP address must be unique to your network The default IP address is 192 168 1 250 10 Instant Wreless Series 2 LA lines Ss misni Hines Eerie i Dual Band Wireless Setup Wizard Aocess Point CRT IP Settings Su AA GH Emme in Ba T Atir or aler kind patra sa deem Boy D ig o o woe g eri na Bb rii ee ibre aring Mery oll bop model m me tation og ole eee CS TES aah ey ey se ee doe Beer ee eee es pour eee et eae he Pe ce Dek bee GEES a ra Ba F abiem ed be pradai i erim h manage Bt rein byan Dga bar ip pran ER Tik ER Cy TASR CE ga PG He BOR Ot CD yy r marr i i kair br NL Rains oi Maal ee Tia AF hum aa mga una ee ae Pami il ibad be hiid se See Ped dams Prr mr TS Figure 5 5 Subnet Mask The Access Point s Subnet Mask must be the same as your Ethernet network e Access Point Name Assign a name to the Access Point Unique mem orable names are helpful especially if you are employing multiple access points on the same network As shown in Figure 5 6 the Basic Settings screen for your 5 GHz 802 11a wireless products will appear Enter your wireless network s SSID and select the channel at which the network broadcasts its wireless signal Then click the Next button to continue or Back to return to the
7. beacon A beacon is a packet broadcast by the Access Point to keep the network synchro nized A beacon includes the wireless LAN service area the AP address the Broadcast destination addresses a time stamp Delivery Traffic Indicator Maps and the Traffic Indicator Message TIM e RTS Threshold This value should remain at its default setting of 2 346 Should you encounter inconsistent data flow only minor modifications are recom mended ELEC Guage 3 141 baisat Feu Pre amy Typa Sher L ng De Type Open Syetan Shared Kay pete Tn Help Figure 6 12 Fragmentation Length This specifies the maximum size a data packet will be before splitting and creating a new packet and should remain at its default setting of 2 346 A smaller setting means smaller packets which will create more packets for each transmission If you have decreased this value and experience high packet error rates you can increase it again but it will likely decrease overall network performance Only minor modifica tions of this value are recommended Data Beacon Rate 5GH7 802 11a only This value between 1 and 16384 indicates the interval of the Delivery Traffic Indication Message A Data Beacon Rate field is a countdown field informing clients of the next window for listening to broadcast and multicast messages When the Access Point has buffered broadcast or multicast messages for associated clients it sends the next message with a rate val
8. cable is connected are located on the Access Point s back panel LAN Power Power Switch Reset Button Figure 3 1 This LAN Local Area Network port connects to Ethernet network devices such as a hub switch or router The Power port is where you will connect the power adapter The Power Switch is where you will turn the Access Point on and off There are two ways to Reset the Access Point s factory defaults Either press the Reset Button for approximate ly ten seconds or restore the defaults from the password tab in the Access Point s Web Based Utility Important Resetting the Access Point will erase all of your settings WEP Encryption Wireless and LAN settings etc and replace them with the factory defaults Do not reset the Access Point if you want to retain these settings Dual Band Wreless Access Point The Dual Band Wireless Access Point s Front Panel SGH 24 GHz raw dora Posi Figure 3 2 Power Green The Power LED lights up when the Access Point is powered on Diag Red The Diag LED indicates the Access Point s self diagnosis mode during boot up and restart It will turn off upon com pleting the diagnosis If this LED stays on for an abnormally long period of time refer to the Troubleshooting Appendix WLAN Act Green If the WLAN s Act LED is flickering the Access Point is actively sending or receiving data to or from one of the devices on the network WLAN Link Gree
9. is dis played here e Channel This is the channel at which your wireless network broadcasts All points in your wireless network must use the same channel in order to function correctly 21 Instant Wreless Series The Help Tab Linke Quel Bad Scceer Prini Heip me pE Men ee oo Het Qm Mate te vd i p Online Resources nkrss Webule Cin maraa in POF hema Adobe Website le Blain a POP radar I required lagna Fimen For help on the various tabs in this Web based Utility along with upgrading the Access Point s firmware and viewing this User Guide click the Help tab shown in Figure 6 9 The help files for the various tabs in this Web based Utility are listed by tab name on the left hand side of the screen The following resources require an Internet connection in order to access them Click the Linksys Website link to connect to the Linksys homepage for Knowledgebase help files and information about other Linksys products For an Online Manual in PDF format click that text link The manual will appear in Adobe pdf format If you do not have the Adobe PDF Reader installed on your computer click the Adobe Website link to download this software Firmware can be upgraded by clicking the Upgrade Firmware link Do not upgrade your firmware unless you are experiencing problems with the Access Point 22 Dual Band Wreless Access Point UPGRADING FIRMWARE Before upgrading the Access Point
10. main alternatives Direct Sequence Spread Spectrum DSSS and Frequency Hopping Spread Spectrum FHSS What is DSSS What is FHSS And what are their differences Frequency Hopping Spread Spectrum FHSS uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver Properly synchronized the net effect is to maintain a single logical channel To an unintended receiver FHSS appears to be short duration impulse noise Direct Sequence Spread Spectrum DSSS generates a redundant bit pattern for each bit to be transmitted This bit pattern is called a chip or chipping code The longer the chip the greater the probability that the original data can be recovered Even if one or more bits in the chip are damaged during transmis sion statistical techniques embedded in the radio can recover the original data without the need for retransmission To an unintended receiver DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers 29 30 Instant Wreless Series Would the information be intercepted while transmitting on air WLAN features two fold protection in security On the hardware side as with Direct Sequence Spread Spectrum technology it has the inherent security fea ture of scrambling On the software side the WLAN series offers the encryp tion function WEP to enhance security and access control Users can set it up depending upon their needs
11. placed between an Access Point and wireless PC will cre ate signal loss Leaded glass metal concrete floors water and walls will inhib it the signal and reduce range Start with your Access Point and your wireless PC in the same room and move it away in small increments to determine the maximum range in your environment Dual Band Wreless Access Point You may also try using different channels as this may eliminate interference affecting only one channel Also due to FCC regulations more power may be transmitted using 802 11a on channels 52 56 60 and 64 than on the lower channels Lastly check the Advanced tab of the Web Based Utility and make sure that FULL is selected in the Transmission Rate field Does the Turbo Mode work with Windows XP PCs No The Turbo Mode does not work with Windows XP PCs Does the Access Point function as a firewall No The Access Point is only a bridge from wired Ethernet to wireless clients I have excellent signal strength but I cannot see my network WEP is probably enabled on the Access Point but not on your wireless adapter or vice versa Verify that the same WEP Keys and levels 64 128 or 152 are being used on all nodes on your wireless network What is the maximum number of users the Access Point facilitates No more than 65 but this depends on the volume of data and may be less if many users create a large amount of network traffic How many channels frequencies are available with
12. previous page e SSID The SSID is the unique name shared among all points in a wire less network The SSID must be identical for all points in the wireless network It is case sensitive and must not exceed 32 characters which may be any keyboard character Make sure this setting is the same for all points in your wireless network e Channel Select the appropriate channel from the list provided to corre spond with your network settings between 36 and 64 All points in your wireless network must use the same channel in order to function correct ly The Security Settings screen Figure 5 7 for your 5 GHz 802 11a wireless products will appear next From this screen you will set the Wired Equivalent Privacy WEP encryption 64 bit 128 bit 152 bit for your wireless network Select a WEP configuration method and a WEP key Dual Band Wreless Access Point L IL HRG YES imin esinca ovis ae Dual Band Miroless Seip wizard Acoess Point em 105 Basic Settings D Re nf T T Ae bios Lies not Fa he tes quel HE Tay Ae ee ee D Le Cab a s pl oem ie ee de cd Pe eT led a Ay Toi Pl aed eee r Ge approprier bed hira Tian IES ini le trom HX ae ia Bou pou Hie lp ek rad sia ha DS o diia obra ao hl myi erei JE Caareriens Ten mie chanel orate pee re ee becam mi mord be rani nema toe off pce on et et Figure 5 6 The WEP key can consist of the letters A through F and the numbers 0 through 9 and should be
13. Instant Wireless Series Dual Band VUreless Access Point COPYRIGHT amp TRADEMARKS Copyright 2002 Linksys All Rights Reserved Linksys is a registered trademark of Linksys Instant Wireless is a trademark of Linksys Microsoft Windows and the Windows logo are registered trademarks of Microsoft Corporation All other trademarks and brand names are the property of their respective proprietors LIMITED WARRANTY Linksys guarantees that every Instant Wireless Dual Band Wireless Access Point is free from physical defects in material and workmanship under normal use for one year from the date of purchase If the product proves defective during this warranty period call Linksys Technical Support in order to obtain a Return Authorization Number BE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODE FROM THE PRODUCTS PACKAGING ON HAND WHEN CALLING RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE When returning a product mark the Return Authorization Number clearly on the outside of the package and include a copy of your original proof of purchase All customers located outside of the United States of America and Canada shall be held responsible for shipping and handling charges IN NO EVENT SHALL LINKSYS LIABILITY EXCEED THE PRICE PAID FOR THE PROD UCT FROM DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAM AGES RESULTING FROM THE USE OF THE PRODUCT ITS ACCOMPANYING SOFT WARE OR ITS DOCUMENTATION LINKSYS D
14. OES NOT OFFER REFUNDS FOR ANY PRODUCT Linksys makes no warranty or representation expressed implied or statuto ry with respect to its products or the contents or use of this documentation and all accompanying software and specifically disclaims its quality performance mer chantability or fitness for any particular purpose Linksys reserves the right to revise or update its products software or documentation without obligation to notify any individ ual or entity Please direct all inquiries to Linksys P O Box 18558 Irvine CA 92623 FCC STATEMENT This product has been tested and complies with the specifications for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide rea sonable protection against harmful interference in a residential installation This equip ment generates uses and can radiate radio frequency energy and if not installed and used according to the instructions may cause harmful interference to radio communi cations 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 is found by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment or devices Connect the equipm
15. SS must be configured with the same BSS ID Dual Band Wreless Access Point What is ESSID An Infrastructure configuration could also support roaming capability for mobile workers More than one BSS can be configured as an Extended Service Set ESS Users within an ESS could roam freely between BSSs while main taining a continuous connection to the wireless network stations and Access Points What is ISM band The FCC and their counterparts outside of the U S have set aside bandwidth for unlicensed use in the ISM Industrial Scientific and Medical band Spectrum in the vicinity of 2 4 GHz in particular is being made available worldwide This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe What is Spread Spectrum Spread Spectrum technology is a wideband radio frequency technique devel oped by the military for use in reliable secure mission critical communica tions systems It is designed to trade off bandwidth efficiency for reliability integrity and security In other words more bandwidth is consumed than in the case of narrowband transmission but the trade off produces a signal that is in effect louder and thus easier to detect provided that the receiver knows the parameters of the spread spectrum signal being broadcast If a receiver is not tuned to the right frequency a spread spectrum signal looks like background noise There are two
16. To configure any other Access Points in your network you can run this Setup Wizard again Click the Exit button to exit the Setup Wizard Le IL RRG YS imise Bienia Seins Dual Band Wireless Seng Wizard Access Point pan 14 sata Congratulations Vier Dhi Ba We droa Arora Perl Fua mue chaty bee ceri 15 Instant Wreless Series Dual Band Wreless Access Point g e Static IP Address This IP address must be unique to your network The Chapter 6 Configun ng the Dual default IP address is 192 168 1 250 As this is a private IP address there is no need to purchase a separate IP address from your service provider Band VW rel ess Access Poi nt Verify the address and click the Apply button to save changes Note The Access Point is designed to function properly after e Subnet Mask The Access Points Subnet Mask or IP Mask must be the same as your Ethernet wired network Verify this is correct and click the Apply button to set it using the Setup Wizard This chapter is provided solely for those who wish to perform more advanced configuration or monitoring The Access Point has been designed to be functional right out of the box with the default settings in the Setup Wizard However if you d like to change these settings the Access Point can be configured through your web browser with the CTIE ST Web Based Utility This chapter explains how to configure the Access Point in this manner LT OHREVE Th
17. an origin and a destination in a network Passphrase Used much like a password a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products PC Card A credit card sized removable module that contains memory I O or a hard disk Port A pathway into and out of the computer or a network device such as a switch or router For example the serial and parallel ports on a personal com puter are external sockets for plugging in communications lines modems and printers RJ 45 Registered Jack 45 A connector similar to a telephone connector that holds up to eight wires used for connecting Ethernet devices Roaming The ability to use a wireless device and be able to move from one access point s range to another without losing the connection Router Protocol dependent device that connects subnetworks together Routers are useful in breaking down a very large network into smaller subnet works they introduce longer delays and typically have much lower throughput rates than bridges RTS Request To Send An RS 232 signal sent from the transmitting station to the receiving station requesting permission to transmit Dual Band Wreless Access Point Server Any computer whose function in a network is to provide user access to files printing communications and other services Software Instructions for the computer A series of instructions that performs a particul
18. and Wreless Access Point 4 The next screen to appear shown in Figure 5 3 will display a list of access points on your network along with the status information for each access point If this is the only access point on your network it will be the only one displayed If there are more than one displayed select the Access Point by clicking on it and click the Yes button to continue or No to exit the Setup Wizard inal dees dem Dual Band Wireless Setup Wizard Access Point wan BS Congratulations iz 14 LT Lirecsve ii lars Wiech ki Mania It Ikan Maast bail Ti Pb A hi Ec pia mi Ea L ah UNE Fai PEL Td E nr are marre Beal irri ta Sei mi be dpa es br nghi Em geen rem man eee arier Bees Para me h aal raer m don comm em immune Es taua re a art K Ep ap a Tiii di a 1 pa eai T imi Dea inp M bas mat i Lier Figure 5 3 You will be asked to sign onto the ie Access Point you ve selected as i Slee hoa eat mart shown in Figure 5 4 Enter the F es TT A Password you ve assigned If BP iis Lakia APTA none has been assigned enter the feral default password admin Then x Cred click the OK button This pass cy cand iced bake Man Ee ca Beat word can be changed from the ssemss the teens ditty For sharmi peoi chines thls Web based Utility s Password FERRIERE ih Ma Res loess Patte oun tab Figure 5 4 As shown in Figure 5 5 the IP Settings screen will appear next Enter an IP Address
19. ar task is called a program The two major categories of software are system software and application software System software is made up of control programs such as the operating system and database management sys tem DBMS Application software is any program that processes data for the user A common misconception is that software is data It is not Software tells the hardware how to process the data SOHO Small Office Home Office Market segment of professionals who work at home or in small offices Spread Spectrum Spread Spectrum technology is a wideband radio frequen cy technique developed by the military for use in reliable secure mission crit ical communications systems It is designed to trade off bandwidth efficiency for reliability integrity and security In other words more bandwidth is con sumed than in the case of narrowband transmission but the trade off produces a signal that is in effect louder and thus easier to detect provided that the receiver knows the parameters of the spread spectrum signal being broadcast If a receiver is not tuned to the right frequency a spread spectrum signal looks like background noise There are two main alternatives Direct Sequence Spread Spectrum DSSS and Frequency Hopping Spread Spectrum FHSS Static IP Address A permanent IP address that is assigned to a node in an IP or a TCP IP network Subnet Mask The method used for splitting IP networks into a series of
20. at a particular location It s espe cially useful in education and other environments where users change fre Dual Band Wreless Access Point quently Using very short leases DHCP can dynamically reconfigure networks in which there are more computers than there are available IP addresses DHCP supports static addresses for computers containing Web servers that need a permanent IP address Download To receive a file transmitted over a network In a communications session download means receive upload means transmit Driver A workstation or server software module that provides an interface between a device and the upper layer protocol software running in the comput er it is designed for a specific device and is installed during the initial instal lation of a network compatible client or server operating system DSSS Direct Sequence Spread Spectrum DSSS generates a redundant bit pattern for each bit to be transmitted This bit pattern is called a chip or chip ping code The longer the chip the greater the probability that the original data can be recovered Even if one or more bits in the chip are damaged during transmission statistical techniques embedded in the radio can recover the orig inal data without the need for retransmission To an unintended receiver DSSS appears as low power wideband noise and is rejected ignored by most nar rowband receivers DTIM Delivery Traffic Indication Message A DTIM field is a c
21. dards that often become national and international standards The organization publishes a number of journals has many local chapters and several large societies in special areas such as the IEEE Computer Society Infrastructure An infrastructure network is a wireless network or other small network in which the wireless network devices are made a part of the network through the Access Point which connects them to the rest of the network IP Address In the most widely installed level of the Internet Protocol Internet Protocol today an IP address is a 32 binary digit number that identi fies each sender or receiver of information that is sent in packet across the Internet When you request an HTML page or send e mail the Internet Protocol part of TCP IP includes your IP address in the message actually in each of the packets if more than one is required and sends it to the IP address that is obtained by looking up the domain name in the Uniform Resource Locator you requested or in the e mail address you re sending a note to At the other end the recipient can see the IP address of the Web page requestor or the e mail sender and can respond by sending another message using the IP address it received ISM band The FCC and their counterparts outside of the U S have set aside bandwidth for unlicensed use in the ISM Industrial Scientific and Medical band Spectrum in the vicinity of 2 4 GHz in particular is being made avail able worl
22. dwide This presents a truly revolutionary opportunity to place con venient high speed wireless capabilities in the hands of users around the globe LAN A local area network LAN is a group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area for example within an office building MAC Media Access Control Address A unique number assigned by the manufacturer to any Ethernet networking device such as a network adapter that allows the network to identify it at the hardware level Mbps MegaBits Per Second One million bits per second unit of measure ment for data transmission Multicasting Sending data to a group of nodes instead of a single destination 41 42 Instant Wreless Series Network A system that transmits any combination of voice video and or data between users Node A network junction or connection point typically a computer or work station OFDM OFDM Orthogonal Frequency Division Muliplexing works by breaking one high speed data stream into a number of lower speed data streams which are then transmitted in parallel Each lower speed stream is used to modulate a subcarrier Essentially this creates a multi carrier transmission by dividing a wide frequency band or channel into a number of narrower fre quency bands or sub channels Packet A unit of data routed between
23. e at exactly the same time their signals collide When the collision is detected they both back off and each wait a random amount of time before retrying CTS Clear To Send An RS 232 signal sent from the receiving station to the transmitting station that indicates it is ready to accept data Database A database is a collection of data that is organized so that its con tents can easily be accessed managed and updated DHCP Dynamic Host Configuration Protocol A protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol IP addresses in an organization s network Using the Internet s set of protocol TCP IP each machine that can connect to the Internet needs a unique IP address When an organization sets up its computer users with a con nection to the Internet an IP address must be assigned to each machine Without DHCP the IP address must be entered manually at each computer and if computers move to another location in another part of the network a new IP address must be entered DHCP lets a network administrator supervise and dis tribute IP addresses from a central point and automatically sends a new IP address when a computer is plugged into a different place in the network DHCP uses the concept of a lease or amount of time that a given IP address will be valid for a computer The lease time can vary depending on how long a user is likely to require the Internet connection
24. e the Access Point s factory default settings click the Yes button beside Restore Factory Defaults Click the Apply button to apply your changes or Cancel to cancel your changes If you require online help click the Help button Important Restoring the Access Point s facory defaults will erase all of your settings WEP Encryption Wireless and LAN settings etc and replace them with the factory defaults Do not reset the Access Point if you want to retain these settings Dual Band Wreless Access Point The Status Tab G fhe Moi jil Pierce ms lee Re ms pe Saws Thik pereen dpt ee Gecer Peet cure mien md seing eee 101 E1 ARE Libere EME bd Po HIRAI Lo se PRC Makerere AAS 17 1 Figure 6 8 The Status tab shown in Figure 6 8 will display current information on the Access Point its settings and performance e Firmware Version This displays the current version of the Access Point s firmware Firmware should only be upgraded if you experience problems with the Access Point and can be upgraded from the Help tab e IP Address This IP address is the unique address to your network e Subnet Mask The Access Point s Subnet Mask which is the same as your Ethernet network e SSID The SSID is the unique name shared among all points in a wireless network e Encryption Function The encryption method you chose in the Setup Wizard or changed from the Setup Tab of this Web based Utility
25. en be changed with the Setup Wizard or Web based Browser Utility 1 Insert the Setup Wizard CD into your PC s CD ROM drive Your PC must be on your wired network to set up the Access Point 2 The screen in Figure 5 1 should appear on your monitor If it does not this means the autorun is not functioning Start the Setup Wizard manually by clicking the Start button selecting Run and typing d setup exe where D is your PC s CD ROM drive Click the Setup button to continue this Setup Wizard Clicking the User Guide button opened this User Guide To access the Linksys web site on an active Internet connection click the Linksys Web button or to exit this Setup Wizard click the Exit button Instant Wreless Series Dual Band Wireless Scip Wizard Aocess Polnt vE Le FUSS Welcome Map R Srp Wini adl bpi sia eck Lies dhasi Pimi kireb dai P Figure 5 1 The following screen shown in Figure 5 2 displays how the Access Point is configured in this Setup Wizard Optimally you should perform this setup through a PC on your wired network Click the Next button to con tinue or Exit to exit the Setup Wizard kesimi Mirnima Janine Dual Band Wir loss Access Point Sil BA ill LT Lie YS Connecting the Wireless Access Point Fr ran Snr hos ha Broan pe I Poke Pro gh ara PC carr e it pour A there Meher Misie pare bis iris Aromia Pod m orea bo Ove cl poe tenes dela Cu KELIS Figure 5 2 Dual B
26. ent Type window appears select Protocol and click the Install button 35 Instant Wreless Series 4 Select NWLink IPX SPX NetBIOS Compatible Transport Protocol from the list and click the OK button 5 When the Network window reappears click the OK button Restart your computer NWLink IPX SPX NetBIOS Compatible Transport Protocol has now been successfully installed TCP IP Setup for Windows XP 36 1 Click the Start button and open the Control Panel 2 Double click the Network and Internet Connections icon 3 Double click the Network Connections icon 4 Right click the Local Area Connection icon and select Properties 5 If the TCP IP Protocol is listed for your network adapter go to step five Otherwise click the Install button 6 When the Component Type window appears select Protocol and click the Add button 7 Select Internet Protocol TCP IP from the list and click the OK button 8 When the Local Area Connection Properties window reappears select TCP IP and click the Properties button 9 Select Use the following IP Address 10 Enter an IP Address for the computer along with a Subnet Mask and Default Gateway Then click the OK button If you do not have these val ues consult your network administrator 11 When the Local Area Connection Properties window reappears click the OK button TCP IP has now been successfully installed Dual Band Wreless Access Point Appendix C Gossary Adapt
27. ent to an outlet other than the receiver s Consult a dealer or an experienced radio TV technician for assistance FCC 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 and your body UG WAPS1A4B 073102NC KL Instant Wreless Series Table of Contents Chapter 1 Introduction The Instant Wireless Dual Band Wireless Access Point Features Package Contents System Requirements Chapter 2 Planning Your Wireless Network Network Topology Roaming Chapter 3 Getting to Know the Dual Band Wireless Access Point The Dual Band Wireless Access Point s Back Panel The Dual Band Wireless Access Point s Front Panel Chapter 4 Connecting the Dual Band Wireless Access Point Chapter 5 Setting Up the Dual Band Wireless Access Point Chapter 6 Configuring the Dual Band Wireless Access Point The Setup Tab The Password Tab The Status Tab The Help Tab The Filter Tab The Wireless Tab Appendix A Troubleshooting Frequently Asked Questions Appendix B Setting Up the TCP IP and IPX Protocols Setting Up TCP IP in Windows TCP IP Setup for Windows 95 98 and Millennium IPX Setup for Windows 95 98 and Millennium TCP IP Setup for Windows NT 4 0 IPX Setup for Windows NT 4 0 TCP IP Setup for Windows 2000 IPX Setup for Windows 2000 TCP IP Setup for Windows XP Appe
28. er Printed circuit board that plugs into a PC to add to capabilities or connectivity to a PC In a networked environment a network interface card is the typical adapter that allows the PC or server to connect to the intranet and or Internet Ad hoc Network An ad hoc network is a wireless network or other small net work in which some of the network devices are part of the network only for the duration of a communications session while in some close proximity to the rest of the network Backbone The part of a network that connects most of the systems and net works together and handles the most data Bandwidth The transmission capacity of a given facility in terms of how much data the facility can transmit in a fixed amount of time expressed in bits per second bps Beacon Interval A beacon is a packet broadcast by the Access Point to keep the network synchronized A beacon includes the wireless LAN service area the AP address the Broadcast destination addresses a time stamp Delivery Traffic Indicator Maps and the Traffic Indicator Message TIM Bit A binary digit The value O or 1 used in the binary numbering system Also the smallest form of data Browser A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web or PC The word browser seems to have originated prior to the Web as a generic term for user interfaces that let you browse text files
29. gs and open the Control Panel Inside the Control Panel double click the Network icon 2 If the TCP IP Protocol is listed for your network adapter go to step five Otherwise click the Add button 3 When the Component Type window appears select Protocol and click the Add button 4 Select Microsoft in the Manufacturers list and choose TCP IP in the Network Protocols list Then click the OK button 5 When the Network window reappears click TCP IP Then click the Properties button 6 Select Specify an IP Address 7 Enter an IP Address for the computer along with a Subnet Mask Click the OK button If you do not have these values consult your network adminis trator 8 When the Network window reappears click the OK button Restart your machine TCP IP has now been successfully installed IPX Setup for Windows 95 98 and Millennium 1 Click the Start button select Settings and open the Control Panel Inside the Control Panel double click the Network icon 2 If the TCP IP Protocol is listed for your network adapter go to step four Otherwise click the Add button 3 When the Component Type window appears select Protocol and click the Add button 4 Select Microsoft in the Manufacturers list and choose IPX SPX protocol in the Network Protocols list Then click the OK button 33 Instant Wreless Series TCP IP Setup for Windows NT 4 0 1 Click the Start button select Settings and open the Cont
30. h a maximum of 16 alphanumeric characters used for generating a WEP Key Type the passphrase here This passphrase may not work with non Linksys products due to possible incompatibility with other vendors passphrase generators If you d rather not use a passphrase and would rather enter the WEP Key manually click the Next button Click the Next button to continue or Back to return to the previous page Pel Gual Band V Wirtless focess Point Unicsy Ss s cuniy Optional TC Fre LP coger ST d rie lima nl et man WTA ess Hi berl it meppien Bim NO epah pee ety a lola ary ts FA F Pha Tip Be pes Ba el be aed ee BP bh Ta AS RS der dd i D Ca kmg Fan Ti ECTS Bp vasa ra Peay sper u PAP y ot eee ry mu ra iy marp mer his y pyel P Sainani piei a PP iiy eriei ee piin ro arail mra ra F mpana Pret eee MT Le ar ma baara wrea Figure 5 9 Note The Access Point s passphrase function when mixing prod ucts from other manufacturers into your wireless network Linksys products should always be used for optimum functionality If another company s wireless product is used however the WEP key should be set manually Instant Wreless Series 11 The following Security screen shown in Figure 5 7 will allow you to enter your WEP key Each point in your wireless network must use the same WEP key for the network to function properly Verify that the appropriate key is entered and click the Next button to continue or Back to
31. he Apply but ton to set it e Authentication Type You may choose between Open System or Shared Key The Authentication Type default is set to Open System in which the sender and the recipient do NOT share a secret key Each party generates its own key pair and asks the receiver to accept the randomly generated key Once accepted this key is used for a short time only Then a new key is generated and agreed upon Shared Key is when both the sender and the recipient share a secret key When you ve completed making any changes on this tab click the Apply but ton to save those changes or Cancel to exit the Web based Utility without sav ing changes For more information on this tab you can click the Help button Appendix A Troubleshooting This chapter provides solutions to problems usually encountered during the installation and operation of the Access Point Read the description below to solve your problems If you can t find an answer here check the Linksys web site at www linksys com Frequently Asked Questions Can the Access Point act as my DHCP Server No The Access Point is nothing more than a wireless hub and as such cannot be configured to handle DHCP capabilities Can I run an application from a remote computer over the wireless net work This will depend on whether or not the application is designed to be used over a network Consult the application s user guide to determine if it supports oper ation over a netw
32. ing WEP Encryption through the Web based Browser Utility is done by clicking the WEP Key Setting button on the Setup Screen as shown in Figure 6 2 This will open the WEP Key Setting screen This screen is shown in Figure 6 3 for 5GHz 802 1la or Figure 6 4 for 2 4GHz 802 11b Select the WEP encryption for the type s of wireless technology you are using From this screen you can select the type of WEP encryption to use as well as set the WEP Key for that encryption Important Always remember that each point in your wireless net work MUST use the same WEP Encryption method and encryption key or your wireless network will not function properly WEP Key Setting fa Ba 1D bee t LEE GG hii ey VE G her ape Dual Band Wreless Access Point REF Ercne on Poeme Passphrass o Hey 11 Kera ETEF E Hayd Spety Cassel Cine Figure 6 4 From the pull down menu select the type of WEP encryption you wish to use If you are using 5GHz 802 11a wireless technology you will need to enter the key manually If you are using 2 4GHz 802 11b wireless technology and wish to use a WEP Passphrase it can be a maximum of 16 alphanumeric characters This passphrase may not work with non Linksys products due to possible incom patibility with other vendors passphrase generators The WEP Key can be gen erated using your Passphrase or you can enter it manually Type that here The WEP key must consist of the letters A th
33. is gereen contain all of the Accus Points baajt atip functors Setup Misst users w ll ba me po Lite Be Access Point s defaut sehinga seas without making any changes For further infomation please see the User Guide or clock the Help button Open your web browser and type the IP Address you entered in the Setup Wizard The default IP address is 192 168 1 250 Should you need to learn what IP Address the Access Point presently uses run the Setup Wizard again It will scan the Access Point and give you its IP Address Press the Enter key and the follow ing screen shown in Figure 6 1 will appear Leave the User Name field blank The first time you open the Web Based Utility use the default password admin You can set a new Biet ed er ecm 11 So password from the Password tab Figure 6 1 AGHE Er imei Channel frais USK The Setup Tab u v Grable Disable WEP kar Sring pis Cr Bip Flers emer 10 1 CIATTE Lbaus WPA ee eg fe dire DMG 7 ci Babe IP Address 107 subnet Mask BIRT Bidrar CR Al DEA 5 GHz ean en si Channel 57i Damsia maA COMPLETE a WEP Erme Disable SDP Key Seating The first screen that appears shown in Figure 6 2 is the Setup tab This allows you to change the Access Point s general settings Change these settings as described here and click the Apply button to apply your changes or Cancel to cancel your changes If you require online help clic
34. k the Help button Figure 6 2 The following entries are for both 5GHz 802 11a and 2 4GHz 802 11b e Firmware This will display the Access Point s current firmware version Firmware can be upgraded from the Help tab e SSID The SSID is the unique name shared among all points in a wire less network The SSID must be identical for all points in the wireless e Access Point Name You may assign any name to the Access Point network It is case sensitive and must not exceed 32 alphanumeric char Unique memorable names are helpful especially if you are employing acters which may be any keyboard character Make sure this setting is the multiple access points on the same network Verify this is the name you same for all points in your wireless network wish to use and click the Apply button to set it p Instant Wreless Series e Channel Select the appropriate channel from the list provided to corre spond with your network settings This should be between 1 and 11 in North America for 2 4GHz 802 11b devices and 36 and 64 in North America for 5GHz 802 11a devices All points in your wireless network must use the same channel in order to function correctly WEP The WEP Encryption method is Disabled by default To enable WEP click the WEP Key Setting button Click the Apply button to apply your changes or Cancel to cancel your changes If you require online help click the Help button SETTING WEP ENCRYPTION Sett
35. less network e Channel Select the appropriate channel from the list provided to corre spond with your network settings between 1 and 11 in North America All points in your wireless network must use the same channel in order to function correctly r Dual Band Wireless Point LT US ys Basic Senin Varese Ga a Ps vag edt sear r J ren jem lip el pie he ee er re CT op RER Basa Esir maii Ra omis Panel bs rara wih par rrini Vir Wd ears mmi er r Ae arrra der ahr Tha PHE q sp promet Di ec Aa me be cere iimas hai D SY A ir rri i id m r I re Thn ns Fn pee m ahah mr BESTS Fd eeu ds a noe ial chi mma ET Figure 5 8 Note WEP encryption should be used whenever communicating over a wireless network Wireless transmissions by their very nature are unprotected and WEP encryption helps to close this hole in security and make your wireless network safer to use Dual Band Wreless Access Point 10 The Security Settings screen Figure 5 9 for your 2 4 GHz 802 11b wire less products will appear next From this screen you will set the Wired Equivalent Privacy WEP encryption 64 bit 128 bit for your wireless network Select a WEP configuration method and a WEP passphrase e WEP Disable 64 bit WEP 128 bit WEP In order to utilize WEP encryption select the WEP setting from the pull down menu If you do not wish to utilize WEP encryption make sure Disable is selected Passphrase This is a text string wit
36. n The WLAN s Link LED lights whenever there is a suc cessful wireless connection LAN Act Link Green The LAN s LINK LED serves two purposes If the LED is continuously lit the Access Point is successfully con nected to a device through the LAN port If the LED is flick ering it is an indication of any network activity LAN Full Col Green The LAN s Full Col LED also serves two purposes When this LED is continuously lit the connection made through the corresponding port is running in Full Duplex mode A flickering LED indicates that the connection is expe riencing collisions Infrequent collisions are normal If this LED blinks too often there may be a problem with your con nection Refer to the Troubleshooting Appendix if you think there is a problem LAN 100 Orange The LAN s 100 LED indicates when a successful 100Mbps connection is made through the LAN port Instant Wreless Series Chapter 4 Connecting the Daal Band VUureless Access Point 1 Locate an optimum location for the Access Point The best place for the Access Point is usually at the center of your wireless network with line of sight to all of your mobile stations 2 Fix the direction of the antenna Try to place it in a position which can best cover your wireless network Normally the higher you place the anten na the better the performance will be The antenna s position enhances the receiving sensitivity 3 Connect a standard Ethernet netwo
37. ndix C Glossary Appendix D Specifications Environmental Appendix E Warranty Information Appendix F Contact Information A nbs WW WwW NNR Dual Band Wreless Access Point Chapter 1 Introduction The Instant Wireless Dual Band Wireless Access Point Install an access point that protects your infrastructure investment without lim iting you to a single type of wireless technology The Instant Wireless Dual Band Wireless Access Point works simultaneously with both 802 11a and 802 11b wireless standards to bring you the ultimate in wireless freedom This means you can enjoy the broadest spectrum of wireless networking now with out the worry of a costly upgrade later The Dual Band Wireless Access Point s antennas enhance reception and pro vide seamless roaming through your wireless networks An advanced user authentication feature and security encryption of up to 152 bits give you the highest level of network security It s both easy to install and easy to use With Internet browser based configuration and Windows Based Setup Wizard you re always in control Compact lightweight and power efficient the Dual Band Wireless Access Point is the perfect wireless networking solution no matter which wireless net working standard you choose to use e High Speed Wireless Networking e Protection for Your Wireless Investment Supports Both 2 4GHz and 5GHz Wireless Technology e Wireless Security with WEP Encryption of up t
38. nnel number as the Access Point of the dedi cated coverage area To achieve true seamless connectivity the wireless LAN must incorporate a number of different functions Each node and Access Point for example must always acknowledge receipt of each message Each node must maintain contact with the wireless network even when not actually transmitting data Achieving these functions simultaneously requires a dynamic RF networking technology that links Access Points and nodes In such a system the user s end node under takes a search for the best possible access to the system First it evaluates such factors as signal strength and quality as well as the message load currently being carried by each Access Point and the distance of each Access Point to the wired backbone Based on that information the node next selects the right Access Point and registers its address Communications between end node and host computer can then be transmitted up and down the backbone As the user moves on the end node s RF transmitter regularly checks the sys tem to determine whether it is in touch with the original Access Point or whether it should seek a new one When a node no longer receives acknowl edgment from its original Access Point it undertakes a new search Upon find ing a new Access Point it then re registers and the communication process continues What is BSS ID A specific Ad hoc LAN is called a Basic Service Set BSS Computers in a B
39. nt 2 When the Network window appears click the Protocols tab Then click the Add button 3 Find the IPX SPX protocol in the Select Network Protocol field Click it once and click the OK button TCP IP Setup for Windows 2000 1 At the Windows 2000 desktop right click My Network Places and select Properties Then right click Local Area Connection Choose Properties 2 If the TCP IP Protocol is listed for your network adapter go to step five Otherwise click the Install button 3 When the Component Type window appears select Protocol and click the Add button 4 Select Internet Protocol TCP IP from the list and click the OK button 5 When the Local Area Connection Properties window reappears select TCP IP and click the Properties button 6 Select Use the following IP Address 7 Enter an IP Address for the computer along with a Subnet Mask and Default Gateway Then click the OK button If you do not have these val ues consult your network administrator 8 When the Local Area Connection Properties window reappears click the OK button TCP IP has now been successfully installed IPX Setup for Windows 2000 1 At the Windows 2000 desktop right click My Network Places Then right click Local Area Connection Choose Properties 2 If the NWLink IPX SPX NetBIOS Compatible Transport Protocol is listed for your network adapter click the Cancel button Otherwise click the Install button 3 When the Compon
40. o 152 bits and MAC Address Filtering e Quick and Easy to Use with Web Based Management and Windows Based Setup Wizard e Operates in Both the 5GHz and 2 4GHz Bands e Wi Fi Compatibility with 802 11a and 802 11b Technology e Upto 72 Mbps Turbo Mode with Linksys 802 11a products only e Supports up to 64 Simultaneous Wireless Users e Free Technical Support 24 Hours a Day 7 Days a Week Toll Free U S Calls e 1 Year Limited Warranty Instant Wreless Series Figure 1 1 Package Contents e One Dual Band Wireless Access Point e One Setup CD ROM with User Guide e One Power Adapter e One Quick Installation guide e One Registration Card System Requirements One Pentium Class PC 200MHz or Faster Processor with e 64MB RAM e Internet Explorer 4 0 or Netscape Navigator 4 7 or Higher for Web based configuration one CD ROM Drive and e 802 11a or 802 11b Wireless Adapter with TCP IP Protocol Installed e a Network Adapter with Category 5 Ethernet Network Cabling and TCP IP protocol installed Chapter 2 Planning Your VUredess Network Network Topology A wireless LAN is a group of computers each equipped with one Instant Wireless Series adapter Computers in a wireless LAN must be configured to share the same radio channel The Instant Wireless Series adapters provide access to a wired LAN for wire less workstations An integrated wireless and wired LAN is called an infra structure configuration A gr
41. online BSS Basic Service Set A group of wireless Network PC Card users and an Access Point Buffer A buffer is a shared or assigned memory area used by hardware devices or program processes that operate at different speeds or with different sets of priorities The buffer allows each device or process to operate without being held up by the other In order for a buffer to be effective the size of the buffer and the algorithms for moving data into and out of the buffer need to be 37 38 Instant Wreless Series considered by the buffer designer Like a cache a buffer is a midpoint hold ing place but exists not so much to accelerate the speed of an activity as to support the coordination of separate activities CSMA CA Carrier Sense Multiple Access Collision Avoidance In local area networking this is the CSMA technique that combines slotted time divi sion multiplexing with carrier sense multiple access collision detection CSMA CD to avoid having collisions occur a second time This works best if the time allocated is short compared to packet length and if the number of sit uations is small CSMA CD Carrier Sense Multiple Access Collision Detection The LAN access method used in Ethernet When a device wants to gain access to the network it checks to see if the network is quiet senses the carrier If it is not it waits a random amount of time before retrying If the network is quiet and two devices access the lin
42. ork Can I play multiplayer games with other users of the wireless network Yes as long as the game supports multiple players over a LAN local area net work Refer to the game s user guide for more information What IEEE 802 11a features are supported The product supports the following IEEE 802 1 1a functions e OFDM protocol e Multi Channel Roaming e Automatic Rate Selection e RTS CTS feature e Fragmentation What IEEE 802 11b features are supported The product supports the following IEEE 802 11 functions e CSMA CA plus Acknowledge protocol e Multi Channel Roaming e Automatic Rate Selection e RTS CTS feature e Fragmentation e Power Management 28 Instant Wreless Series What is Ad hoc An Ad hoc wireless LAN is a group of computers each with a WLAN adapter connected as an independent wireless LAN An Ad hoc wireless LAN is appli cable at a departmental scale for a branch or SOHO operation What is Infrastructure An integrated wireless and wired LAN is called an Infrastructure configura tion Infrastructure is applicable to enterprise scale for wireless access to a cen tral database or wireless application for mobile workers What is Roaming Roaming is the ability of a portable computer user to communicate continu ously while moving freely throughout an area greater than that covered by a single Access Point Before using the roaming function the workstation must make sure that it is the same cha
43. ountdown field informing clients of the next window for listening to broadcast and mul ticast messages When the AP has buffered broadcast or multicast messages for associated clients it sends the next DTIM with a DTIM Interval value AP Clients hear the beacons and awaken to receive the broadcast and multicast messages Dynamic IP Address An IP address that is automatically assigned to a client station in a TCP IP network typically by a DHCP server Network devices that serve multiple users such as servers and printers are usually assigned static IP addresses Encryption A security method that applies a specific algorithm to data in order to alter the data s appearance and prevent other devices from reading the information ESS More than one BSS in a network 39 40 Instant Wreless Series Ethernet IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium Has a transfer rate of 10 Mbps Forms the underlying transport vehicle used by several upper level protocols including TCP IP and XNS FHSS Frequency Hopping Spread Spectrum FHSS continuously changes the center frequency of a conventional carrier several times per second accord ing to a pseudo random set of channels while chirp spread spectrum changes the carrier frequency Because a fixed frequency is not used illegal monitoring of spread spectrum signals is extremely difficult if not downright impos
44. oup of Instant Wireless Series adapter users and an Instant Wireless Dual Band Wireless Access Point compose a Basic Service Set BSS Each Instant Wireless Series adapter PC in a BSS can talk to any computer in a wired LAN infrastructure via the Dual Band Wireless Access Point An infrastructure configuration extends the accessibility of an Instant Wireless Series adapter PC to a wired LAN and doubles the effective wire less transmission range for two Instant Wireless Series adapter PCs Since the Dual Band Wireless Access Point is able to forward data within its BSS the effective transmission range in an infrastructure LAN is doubled Infrastructure mode also supports roaming capabilities for mobile users More than one BSS can be configured as an Extended Service Set ESS This con tinuous network allows users to roam freely within an ESS All PCs equipped with an Instant Wireless Series adapter within one ESS must be configured with the same ESS ID and use the same radio channel Before enabling an ESS with roaming capability choosing a feasible radio channel and optimum Dual Band Wireless Access Point position is recom mended Proper Access Point positioning combined with a clear radio signal will greatly enhance performance Instant Wreless Series Chapter 3 Getting to Know the Dual Band Vureless Access Point The Dual Band Wireless Access Point s Back Panel The Access Point s ports where a network
45. return to the pre vious page The WEP key can consist of the letters A through F and the numbers 0 through 9 and should be 10 characters in length for 64 bit encryption or 26 characters in length for 128 bit encryption All points in your wireless network must use the same WEP key to utilize WEP encryption nif a dashed Tenna dnim H Lire ve Dual Band Wireless Setup Wizard Access Poot Secure Hinna e WEF tt or 128 bats lt Wian AEN ETER STEA a pour LEIN Pt ina a aa ATF ny Ew POLE ekg a dn pid i biep al 13 ia DE feel erie py hasari rr be piparra Tey min ef be byra pip bg mn eed eme lee res Termes Y Gran T Forces LL POS PAG oc i LE DRE ES COST EPS aoe pated Dy Cl ES SELS TT EUR mieg Figure 5 10 12 You should now review the settings you ve chosen as shown in Figure 5 11 If these settings are correct click the Yes button to save these settings If you wish to change any of the settings click the No button You will exit the Setup Wizard and can start it again to revise your settings 14 Dual Band Wreless Access Point Lirecsves dead fees de im HT Le ve Dual Band Wireless Setup Wizard Access Poort ver 1 BS Sal 24 Confirm Your Network Settings OH ei i a fre yout rm CA bere vorrei E i T a Lr he mii C1 Le Figure 5 11 13 At this point the configuration performed with the Setup Wizard is com plete as shown in Figure 5 12
46. rk cable to the Access Point Then connect the other end of the Ethernet cable to a switch or hub The Access Point will then be connected to your 10 100 Network 4 Connect the AC Power Adapter to the Access Point s Power Socket Only use the power adapter supplied with the Access Point Use of a differ ent adapter may result in product damage Now that the hardware installation is complete proceed to Chapter 5 Setting Up the Dual Band Wireless Access Point for directions on how to set up the Access Point Note In order for all other wireless devices to communicate with the Access Point those devices must be operating in the Infrastructure Mode If any wireless devices are configured in the Ad Hoc Mode they will not be recognized by the Access Point Chapter 5 Setting Up the Dual Band Wreless Access Point Have You Connected the Access Point to a hub switch or router on your wired network as shown in Chapter 4 Connecting the Dual Band Wireless Access Point The Access Point can only be set up through your wired network Now that you ve connected the Access Point to your wired network you are ready to begin setting it up This Setup Wizard will take you through all the steps necessary to configure the Access Point Note While the Access Point has been designed to work correctly right out of the box setting it up on a wireless computer will require you to use the Linksys default settings These settings can th
47. rol Panel Inside the Control Panel double click the Network icon 2 When the Network window appears click the Protocols tab Then click the Add button 3 Find the TCP IP protocol in the Select Network Protocol field Click it once and then click the OK button 4 When asked if you want to use DHCP choose No 5 If asked to supply your Windows NT CD do so NT will copy the neces sary files to your system You may have to switch between the Access Point s Setup CD and the NT CD 6 When TCP IP appears in the Network Protocols window click the Bindings tab Windows will store your new bindings 7 Click the Protocols tab Then select TCP IP 8 Click the Properties button Select the type of network adapter you have from the Adapters box and select Specify an IP Address 9 Enter the computer s IP Address and Subnet Mask Check with your net work administrator for your settings 10 Enter your Default Gateway if you have one Note a Default Gateway is not required Check with your network administrator 11 When you finish click the OK button If NT asks about WINS ignore it 12 When the Network window reappears click the Close button Restart your computer when prompted TCP IP has now been successfully installed IPX Setup for Windows NT 4 0 34 1 Click the Start button select Settings and open the Control Panel Inside the Control Panel double click the Network icon Dual Band Wreless Access Poi
48. rough F and the numbers 0 through 9 and should be 10 characters in length for 64 bit encryption or 26 characters in length for 128 bit encryption When using 5GHz 802 11a wire less technology 152 bit encryption is also available The WEP key under this setting should be 32 characters in length All points in your wireless network must use the same WEP key to utilize WEP encryption Once the Passphrase is entered click the Generate key to generate a WEP key Click the Apply button to apply your changes and return to the Setup tab or Cancel to cancel your changes To clear any of the information you ve typed but not yet applied click the Clear button The Password Tab 20 Instant Wreless Series Sp Lites Dus Band creer Prini hamar D LE me Pee ee be Qm a g F y Search iy let pa eng VT 1 Ped UNS map a For securky reasons you should set a user name and password om the Access Point Your password must be between d bo 6 characters without ary ERRCSE Password iFa Meg Fragen FES Arar te Canji j Rage Faron Driade Yor OMe Apply anzai Hits Figure 6 7 The Password tab shown in Figure 6 7 allows you to change the Access Point s password and restore factory defaults Changing the sign on password for the Access Point is as easy as typing the password into the AP Password field Then type it again into the second field to confirm To restor
49. s Hi Gi x a 2 L ge sed oy Farani fes E AE Fat TS i PR the O Leese Wireless Miz re SGH C PTECILLILLE NFI Themi okt Fi dua Lede ag Mais Errun Hei Tah Mess Tidee iida Hiii stiertopher Iypr 2A EG 1 00 M pis Beacsa brersst ATE Dion Bey Popgere gi Leap D PT imervat 1 SS mi The ados d Wireless Seming kerides Essen interval ATS Thredheld Fragneriaiion Raita Sutheniication Type vic TE ikai fsaga A HDi Gsis 1 THE Senge PCR Dele FE Ts Basqa 36 7 Dee CHE ran sambar saf 1 Ganga Otel bela ij Crabs O Oimibis Firar Farge AT bpm eth Torba Bede enabled ant Dalani Demi pin rii Eii iy vec Mange NV Drank HA j Bunge TE IH Deed LHi Ganga bee Delon Piia een samin aniy Sees DER Pele F Figure 6 11 When you ve completed making any changes on this tab click the Apply button to save those changes or Cancel to exit the Web based Utility without saving changes To clear any of the information you ve typed by not yet applied click the Clear but ton For more information on this tab you can click the Help button The Wireless Tab 24 Before making any changes to the Wireless tab shown in Figure 6 12 please check your wireless settings on other systems as these changes will alter the effectiveness of the Access Point In most cases these settings do not need to be changed e Beacon Interval This value indicates the frequency interval of the
50. sible depending on the particular method Firmware Programming that is inserted into programmable read only mem ory programmable read only memory thus becoming a permanent part of a computing device Fragmentation Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet Gateway A device that interconnects networks with different incompatible communications protocols Hardware Hardware is the physical aspect of computers telecommunica tions and other information technology devices The term arose as a way to dis tinguish the box and the electronic circuitry and components of a computer from the program you put in it to make it do things The program came to be known as the software Hub The device that serves as the central location for attaching wires from workstations Can be passive where there is no amplification of the signals or active where the hubs are used like repeaters to provide an extension of the cable that connects to a workstation IEEE The Institute of Electrical and Electronics Engineers The IEEE describes itself as the world s largest technical professional society promoting the development and application of electrotechnology and allied sciences for the benefit of humanity the advancement of the profession and the well being of our members Dual Band Wreless Access Point The IEEE fosters the development of stan
51. sub groups or subnets The mask is a binary pattern that is matched up with the IP address to turn part of the host ID address field into a field for subnets Switch 1 A data switch connects computing devices to host computers allowing a large number of devices to share a limited number of ports 2 A device for making breaking or changing the connections in an electrical cir cuit TCP Transmission Control Protocol A method protocol used along with the Internet Protocol Internet Protocol to send data in the form of message units between computers over the Internet While IP takes care of handling the 43 44 Instant Wreless Series actual delivery of the data TCP takes care of keeping track of the individual units of data called packet that a message is divided into for efficient routing through the Internet TCP IP Transmission Control Protocol Internet Protocol The basic com munication language or protocol of the Internet It can also be used as a com munications protocol in a private network either an intranet or an extranet When you are set up with direct access to the Internet your computer is pro vided with a copy of the TCP IP program just as every other computer that you may send messages to or get information from also has a copy of TCP IP Throughput The amount of data moved successfully from one place to anoth er in a given time period Topology A network s topology is a logical charac
52. terization of how the devices on the network are connected and the distances between them The most common network devices include hubs switches routers and gateways Most large networks contain several levels of interconnection the most impor tant of which include edge connections backbone connections and wide area connections Upgrade To replace existing software or firmware with a newer version Upload To transmit a file over a network In a communications session upload means transmit download means receive UTP Unshielded twisted pair is the most common kind of copper telephone wiring Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company To reduce crosstalk or electro magnetic induction between pairs of wires two insulated copper wires are twisted around each other Each signal on twisted pair requires both wires Since some telephone sets or desktop locations require multiple connections twisted pair is sometimes installed in two or more pairs all within a single cable WEP Wired Equivalent Privacy A data privacy mechanism based on a 64 bit 128 bit or 256 bit shared key algorithm as described in the IEEE 802 11 standard Dual Band Wreless Access Point Appendix D Specifications Standards Channels Ports Buttons Cabling Type Data Rate Transmit Power LEDs TEEE 802 3 802 3u 802 11a and 802 11b 802 11a 8 Channels US Canada 802
53. the Access Point Using 802 1 1a there are eight available frequencies ranging from 5 15GHz to 5 32GHz Using 802 11b there are eleven available channels ranging from 1 to 11 What is Turbo mode Turbo mode allows high speed connections but severely limits range Turbo mode must be enabled on both the Access Point and the wireless PCs to func tion Turbo mode is not compatible with Windows XP and may only function with Linksys 5GHz wireless adapters ROP iia Bei 4 What is the difference in range a A between 802 11a and 802 11b Fi las w products tal Overall range will be a little j pr Fi less in a typical environment i while higher speeds may be achieved with 802 11a through es put degrades more quickly See era Le 2 Figure A 1 rame Hetero au i RES RE Figure A 1 Instant Wreless Series Appendix B Setting Up the TCP IP and IPX Protocols Setting Up TCP IP in Windows 32 Before a computer can communicate with the Access Point it must be config ured with the TCP IP protocol If you know how to set up TCP IP on your com puters do so now Otherwise use the guidelines below to help get TCP IP installed on all of the computers that need to communicate with the Access Point If you are unable to successfully install TCP IP on one or more comput ers after following the directions contact the manufacturer of your computers network operating system for further assistance Check with yo
54. ue Access Point Clients hear the bea cons and awaken to receive the broadcast and multicast messages 25 26 Instant Wreless Series e Turbo Mode 5GHz 802 11a only Click the radio button beside Enable to increase the speed of your wireless transmissions to 72 Mbps keeping in mind that the Access Point s range diminishes in Turbo Mode If you do not wish to utilize Turbo Mode make sure the radio button beside Disable is selected e DTIM Interval 2 4GHz 802 11b only This value indicates the interval of the Delivery Traffic Indication Message DTIM A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages When the Access Point has buffered broadcast or multicast messages for associated clients it sends the next DTIM with a DTIM Interval value Access Point Clients hear the beacons and awaken to receive the broadcast and multicast messages e Transmission Rates The basic transfer rates should be set depending on the speed of your wireless network You can select from a range of trans mission speeds or select Best to have the Access Point automatically engage the network s optimum speed e Preamble Type 2 4GHz 802 11b only The preamble defines the length of the CRC block for communication between the Access Point and a roam ing Network Card High network traffic areas should use the shorter pre amble type Select the appropriate preamble type and click t
55. ur network administrator for your TCP IP settings The directions below provide general guidelines for coming up with IP address es and subnet masks Check with your network administrator to see if you need to use specific IP addresses or DHCP settings First each computer on the network will require an IP address which is a series of numbers separated by periods identifying the PC on the network To make things simple you should use the following numbering scheme 192 168 1 X In this example X is a unique arbitrarily assigned number from to 254 Each computer must have its own unique X number Note Never use 0 250 or 255 for X These numbers are reserved by TCP IP for other uses For example if you have three computers you could number them as follows 192 168 1 17 192 168 1 44 192 168 1 126 In this case 17 44 and 126 are arbitrary numbers between 1 and 254 Each computer will also require a subnet mask which is a numerical filter that tells a computer what kinds of TCP IP data packets to accept If you re not sure which mask to use the following mask is recommended 255 255 255 0 Dual Band Wreless Access Point The following instructions are provided as examples for reference only For complete instructions on installing and troubleshooting TCP IP and IPX con sult your Windows operating system documentation TCP IP Setup for Windows 95 98 and Millennium 1 Click the Start button select Settin
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