Manuale d’uso / di manutenzione del prodotto Harmony 802.11a Network Adapter 802.11a del fabbricante Proxim
Vai alla pagina of 76
Har m o ny Harmony 80 2.11a Network Adapt e r User's Guide.
2 Co p y r i g h t © 2002 Proxim Corporation , Sunnyvale, CA. Covered by one or mo re of the following U.S. patents: 5,231,634; 5,875,179; 6,0 06,090. This use r’s g uide and the sof tware describ ed in i t are co pyrighted with all rights r es er v e d .
3 Declar ation of C onformity Déc la ra tion de C onf orm ité Konformitätserklärung The Ma nufact urer: Pr ox im Eur ope B. V . Le C onstructeur: Der Hersteller: Addre ss: Prins Bernhar dplein 200 Addr esse: 1097 JB, P .
4 For Indoor U se Only These produc ts are f or ind oor use only. Uniq uement pour usage d'intérieur . Somen te para uso in terno. Solamente para el uso inter ior. Per uso al coperto solamente. Für In nen V er wendu ng nur . Nemlig indendørs hjælp bare.
5 Ta b l e o f C o n t e n t s Chapter 1 - Introduction .................................................................................. 7 The Harmo ny F amily . .... ...... .... ....... .... ...... .... ....... .... ...... .... ....... .... ...... .
6 Chapter 5 - Harmony Utility ........................................................... ................. 36 Statu s Monit or Ico n ... ...... .... ....... .... ...... .... ....... .... ...... .... ....... .... ...... .... ...... ... 36 Con figurat ion Ut ility .
7 Ch apt e r 1 Introduction C ongratulations on your purc hase of a Harmo ny 802.11a netwo rk adapter. These products are high perfor manc e wireless LAN adapter cards that comply with the IEEE 802.11a standard. This means that they are interoperable with IEEE 8 02.
Introduction 8 The H armony F amily The Harmony ne twork adapters are members o f a product family that provides a complete wireless networking soluti on. •T h e Harmony Ac cess P oint C ontr oll er Model 7560 c entralizes the manag ement, security, and filtering capabilities of a wireless LAN.
Introduction 9 The Produ ct P ackage The items i ncluded with eac h Harmo ny 802.11a network adapter are listed below. If any of th ese items are missing or damaged, plea se contact your reseller or P rox im T ech ni cal Su pp or t . Harmony 8450 802.
Introduction 10 System Requirem ents T o begi n using a Harmony 802 .11a network adapter, yo u must have the following minimum requirements: • A computer that meets the following specifications: •.
Introduction 11 Over view of Co untr y-Speci fic F eatu res This user’s guide provides information on how to install and use the Harmony 802.11 a C ardBus Card and the Ha rmony 802.11 a PCI Card. Prod uct features v ar y by region/country. The following table summarizes the product di fferences ba sed on region: U.
12 Ch apt e r 2 Insta llati on This c hapter describes h ow to install a Harmony 802 .11a networ k adapter and software i n a computer running Windows X P , Windows 2000, Windows Millennium Edition (ME), Windows 98 Second Edition (SE), or Windows NT 4.
Installation 13 High p ower radars are allocate d as primary users of t he 5.25 to 5. 35 GHz a nd 5.65 to 5.85 GHz band. These radar stations ca n c ause in terference with and/or damage the Harmony 802 .11a CardBu s Car d and/or Harmon y 802.11a PCI Car d.
Installation 14 W in dow s NT L apt ops Requi re a Pl ug- and-Pl ay U tilit y A Win do ws N T lap top must have a thi rd -pa r ty Plu g- and -P lay util it y in sta lle d in orde r to use the 802.11a CardBu s Card. One popular Plug-and-Play utility for Windows NT 4.
Installation 15 Inst alla tion I nstru ctio ns Refer to the set of instructions that correspo nd to your computer’s operating s ystem. W indows 98SE/ME/2000/XP The instructions below describe how to inst all a Harmony 802.11 a network adapter by running the Harmony I nst allation program before inser ting the a dapter into th e computer .
Installation 16 6. Enter a name for th e utility’s Program Manag er g roup and cli c k Next. 7. C l i c k Ne xt to install the utilit y . 8. Click Finish to view additional information about the utility. Note: T o avoid viewing the additi onal information, unchec k the Read Harm ony co nfigu rat ion in stru ction s box before click ing F inish .
Installation 17 • Secure the card’s metal bracket to the computer following the directio ns pro- vided in your PC ’s manual and replace the computer cover. • Plug the computer ’s power cord back into t he wall outlet . • Attach the cabled antenna to the antenna base and plac e it on top of your desk, computer , or monitor.
Installation 18 Wi nd o w s N T Follow these steps to install a Harmony 802.11 a network a dapter in a computer running Windows NT 4.0 (Ser vice Pac k 6 or later). 1. T urn on the computer and l ogon to Windows, if a pplicab le. 2. Inser t the Ha rmony Ins tallation CD into the computer’s CD-ROM drive.
Installation 19 10 . C lic k Install when prompted by the Harmony De vic e Setup scree n, shown below. Note: Proxim recommends that you let the install ation wi z ard i nst all the card for you. However, if you want to install the adapter manually , click Co n t r o l Pan e l to open the Networ k screen’s Adapter window.
Installation 20 12. C lic k OK to sav e t he TCP /IP set tings. 13 . Cli ck No when prompted to restar t the computer. 14. Cli ck OK to close the Har mony Devi ce Setup screen. 15. Shut down the computer. 16. Instal l th e Harmony 802 .11a netwo rk adapter in the c omputer.
Installation 21 R ela ted T opics • Se e C ha p t e r 4 be g i n n in g on pa g e 27 fo r a dis c u ss i o n of th e 8 0 2. 1 1a co n f i g u ra t i o n param eters. • Refer to Chapter 5 beginning o n page 36 for information on how to use the Harm ony Util ity.
Installation 22 Upgrading to V ersion 1.4 If you already have an earlier version of the Harmony 8 02.11a soft w are installed, follow these step s to u pgrade to version 1.4: 1. Inser t the Ha rmony Ins tallation CD into the CD-ROM drive. If you do not h ave a CD that contains software version 1 .
23 Ch apt e r 3 Wir eless T opologies Harmony wireless product s l ook and operate similar to Ethernet products. The only d if f e r e n ce i s th a t a r a di o re p la ce s t h e w ir e be t w e en va r i o u s n o d es .
Wireless T opolog ies 24 Infras tructure Many compa nies have an existing Ethernet or wired LAN infra structure and want t o be able to extend that capability to wireless nodes. This is accomplis hed by instal ling one or more Harmo ny 802.11a Access Points on the Ethernet networ k.
Wireless T opolog ies 25 Roaming Between Mul tiple APs For larger environmen ts, Harmony 802.11a client devices may roam from one Harmony 802.11 a Acc ess Point to anot her while m aintai ning the s ame network connect ion. The 802.11a Ac cess Points establish coverage area s or cells similar in conc ept to th ose of a cellular ph one network.
Wireless T opolog ies 26 As the mobile cl ient seamlessly switches from cell to cell, its network connectivity is preser ved. The user can move freely between the Ha rmony 802 .11a Acc ess Points on the network . When the roaming client leaves the transmis sion range of one 802.
27 Ch apt e r 4 C onfigur ation Para met ers This ch apter provides inform ation on the 802.1 1a wireless standard and describes the Harmony 802.11a config uration parameters. The IEEE 802. 11a Specifi catio n In 1997 , the Institute of Electrical and Elec tronics Engineers ( IEEE) adopted t he 802.
C onfiguration Par ameters 28 802.11a Software P arameters The follow ing configuration parameters are availab le for a Harmony 802.11a network adapter . Refer to Chapter 5 for instructio ns on how to chang e th ese configuration settings using the Harmony Utili ty.
C onfiguration Par ameters 29 P ower Saving Mode The Harmony 802.11a network adapters support opt ional power manage ment to conserve battery life. Power Saving Mode is only available if the adapter is o perating in Infrastructure mode. When Power Saving Mode is s et to Normal o r Maximum, a Harmony 802.
C onfiguration Par ameters 30 Channel 802.11a device s spread a radio signal over a range of fre quencies. The IEEE 802.11a specification allocates the available frequencies in the 5 GH z band into a seri es of operating Channels th at are identified by a Chann el number and a c enter carrier frequency .
C onfiguration Par ameters 31 F or Singapor e: An 802.11a network adapter can use one of four Channels: Channel 36 ( 5.18 GHz) , Channel 40 ( 5.20 GHz), Channel 44 (5.
C onfiguration Par ameters 32 RTS/CTS The 802.11a standard support s optional RTS /CTS communication based on pack et size. By default , RTS/CTS communicat ion is disabled. Without RT S/CTS, a sending radio listen s to see if another radio i s already using the medium before transmitting a data pac ket.
C onfiguration Par ameters 33 WEP Keys An 802.11a device with WEP enabled uses a WEP Key to encry pt and decr ypt information. A user must manually enter the net work’s WEP Keys on eac h 802.11a devic e. If the WEP Keys do not matc h on two r adios, no data c ommunication wil l take plac e be tween these devices.
C onfiguration Par ameters 34 Harmony Securi ty Protoc ol Guidelines • If you want to use t he Har mony Secur ity Protocol o n your n etwork, you must enable the protocol on all of your network’s Harmony 802.11a Acc ess P oints and Harm ony 802. 11a cl ients .
C onfiguration Par ameters 35 The Harmony Ut ility does not include configuration se ttings for 802.1x. T o enable 80 2 . 1 x s u p p or t an d co n f ig u r e 8 0 2.
36 Ch apt e r 5 Harmony Ut ility Proxim provide s a so ftware utili ty that simplifies the management and configuratio n of a Ha rmo ny 802 .1 1a net wo rk adap te r. Ch apt er 2 de scr ib es h ow t o ins tal l th e u til it y. This c hapter describes how to use the Harmo ny Utilit y af ter it has been installed.
Harmo ny Util ity 37 Right-click the icon to view configuration options for the Status Monitor: •S e l e c t Ru n 802.1 1a C onf igu ratio n Uti lit y from the drop-down menu to lau nch the 802.11a C onfi guration Utility. Double-clicking the icon also launc hes the utility.
Harmo ny Util ity 38 • Send Si gnal Str ength: The Sig nal bar displays the signal streng th for the last ac knowledgme nt (ACK) received by the adapter.
Harmo ny Util ity 39 • Rec eive Si gnal Stren gth: The Signal bar display s the signa l stre ngth for t he last pack et received b y the adapter. Signal strength is reported in decibels (dB).
Harmo ny Util ity 40 Edi t t he con fi gu rat i on p ara me te rs as n ecessa r y and cl ick A pply to sav e y our cha nge s. T o c hange the operating Channel, Send Rate, RTS/CT S, and Fra gmentation settings, click the button lab eled Adva nced C onfi gurati on to display these par ameters.
Harmo ny Util ity 41 Note to Windows XP Users Windows XP provides built-in support for wireless networks. Windows X P’s wireless network management features are used i n lieu of the Harmony Ut ility . For PCI Card us er s , s u pp o r t f or th e Ha r m o ny Ut i l i t y is di sa b l ed by de fa u l t ( i .
Harmo ny Util ity 42 Security C lick the Security tab to configure the adapter’s secur ity setti ngs. From with in this screen, you can enable WEP for Authenticatio n and Encry ption, enable the Harmo ny Security Protocol, and configure the adap ter’s WEP K eys.
Harmo ny Util ity 43 4. Enter one to four WEP Keys in the fields pr o vided, as shown i n the following exampl e. 5. Use only hexadecimal digits (i.e. , 0-9 and A-F ). For 64-bit encr yption, enter 10 digits for eac h Key; for 128-bit encr yption, enter 26 digits for eac h Key; for 152-bit encr yption, e nter 32 dig its for each K ey .
Harmo ny Util ity 44 In the following example, Key 3 is t he Default Key . A Harmony 802.11a networ k adapter can decrypt i nforma tio n that was encrypted with any of it s four WEP Key s but it will only use the D efault K ey to encr ypt outgoing i nformation.
Harmo ny Util ity 45 T o create the text file, use a t ext prog r am such as Microsof t Notepad or W ordPad. The text file should have a “.txt” extension.
Harmo ny Util ity 46 3. Click Apply or OK to save the new security settings. 4. Log off W indows or restart the computer . 5. Log on to Windows when prompted ( if the Log on to H armony Security bef ore Win do ws Log on option is dis abled). 6. The Harmony logon prompt will appe ar.
Harmo ny Util ity 47 The Windows 98/ME logon prompt is shown below. Note: The Har mony logon promp t will not appear if your Windows Us er Name a nd Password matc h your Har mony User Name and Password, you are withi n range of a properl y configured Acc ess Point, and the Log on to Harmony Security befor e Windows Log on optio n is disabled.
Harmo ny Util ity 48 8. If desire d, click Change P asswor d (Windows XP/2000 Professional) or Op tions... (Windows 98/M E) to modif y your Harmony user account. The Windows 9 8/ME logon p rompt is sh own below. • Enter a new password twice in the fields provided to change your Harmony Password.
Harmo ny Util ity 49 802.1x The Harmony Ut ility does not include configuration se ttings for 802.1x. T o enable 802.1x suppor t, you need to use a client utility provided by a RAD IUS serv er manufacturer, suc h as Microsoft or F unk Software.
Harmo ny Util ity 50 7 . Clic k th e Aut henti cation t ab. 8. C onfigure the 802.1x set tings. Contact your network administrator or refer to Windows XP’s on-l ine Help if yo u need assi stanc e configuri ng these settings .
Harmo ny Util ity 51 Network T raffic Statist ics C lick the Sta tisti cs tab to view in formation about t he number of pack ets sent and received by the adapter, as shown below.
Harmo ny Util ity 52 The advanced Statistics scre en display s the following addition al statistics: Send • Send Rat e: This field report s the adapter’s current t r ansmit rate. • Unic ast Byt es Sent: Thi s statistic reports the total number o f bytes c ontained in the unicast pac kets transmitted by the adapter.
Harmo ny Util ity 53 • Last ACK RSSI: This statistic repor ts the RSSI (Received Signal Strength) for the last ackn ow le dg me nt (AC K) rece iv ed by t he adap te r. RSSI is r ep or t ed i n de ci be ls (d B ) a nd ty p i c a ll y r a ng e s fr o m 0 to 75 .
Harmo ny Util ity 54 802.11a Networks C lick the 802 .11a Netw orks t ab to view the list o f Ac ces s Point s or Ad Hoc stations within range of the adapter. In the example below, the utility detected o ne Ac cess Point and one Ad Hoc node. Note: T o display only Ac cess Points, unc heck the Displa y Ad Hoc st ations box.
Harmo ny Util ity 55 If you want th e adapter to associate with one of the d etected Acc ess Points o r join t he same Ad Hoc networ k a s one of the detected Ad Hoc nodes, highlight the node w ithi n the de vic e l ist and clic k Associ at e .
Harmo ny Util ity 56 C lick one of the Channels in th e Channel RS SI Map to dete rmin e if an y 8 02. 11a devic es are transmitting at that frequency .
Harmo ny Util ity 57 In addition, t he utility displays the current suc cess rate in the Ins tant aneou s Su cc ess field and the ave r age succ ess rate (since the beginning of t he test) in the Av erage Success fiel d.
58 Ch apt e r 6 T roub leshooting The Harmony 802.1 1a network adapters are designed to b e very easy to inst all and operate. However, if you experience any difficulties , u se the informatio n in thi s c hapter to help diagnose and solve the problem.
T roubleshooting 59 W indows 98/ME/2000/XP T roubleshooting Adapter In serted Before Running the Ins tallation Pr ogram If you inserted the Harmony 802.
T roubleshooting 60 7 . Attac h the cabled antenna to the antenna base and plac e the antenna on top of your desk, computer, or monito r. 8. T urn on the computer and logon to Windows, if applicable. 9. C ard Bus C ard users: In ser t the 802.11a adapter into an av ailable C ardBus slot.
T roubleshooting 61 If a yellow excl amation point (“ !”) appears n ext to the H armony 802 .11a adapter’ s Device Manager entry, then the adapt er is not working properly. Follow these steps: 1. Uninstall the adapter as described i n “Uninstal ling a Harmo ny 802.
T roubleshooting 62 Win do ws N T Follow these steps to config ure a Ha rmony 802.11a a dapter’s n etworking proto cols in a Win dows NT c omputer: 1. Open the C ontrol Panel’s Netw ork icon. 2. Clic k th e Pr otocol s tab . 3. Select a proto col from the list of instal led components and click Pr operties to configure its setti ngs.
T roubleshooting 63 Windo ws 98/ME comput ers: • C:WINDOWSINF NETPR11A. INF • C:WINDOWSINFOTHERPROXIM,INC.N ETPR11A.INF • C:WIND OW SSYSTEM32D RIVERSP ROX11A .SYS • C:WINDOWSSYSTEMPROX11A. SY S Wi nd ows N T com p ute rs: • C:WINDOWSSYSTEM32PROX11AN4.
T roubleshooting 64 The Harmony 802.11a C ardBus C ard includes two integr al omnidir ectional antenna s. Note that the c overag e footprint of the CardBu s Card’s antenn as wil l vary depen ding on the laptop’s design and th e location of th e CardBu s slo t in the computer.
T roubleshooting 65 Common T echnical Support Questions This section discusses some of the most common problems using a Harmo ny 802.11a network adapter and offers possible solut ions. Symptom/Question Possible Solution/Answer I installed the adapter card in the computer before running SETU P .
T roubleshooting 66 How do I determine where to instal l 8 02.11a Acc ess Points to ensure that users can ac ces s th e wireless network from anywhere in my fac ili ty ? Proxim recommends that y ou pe.
T roubleshooting 67 My Harmony User N ame and Password are syn c hroni z ed with my Windows User Name and Pa ssword so the Harmony logon prompt does not appear after I logon to Windows.
68 Ap p e ndi x A T ec hnica l Spec ific ations The following technic al specificatio n is for reference purposes only. Actual product’s performance and complianc e with l oc al telecommunications regulations may vary from country to countr y .
69 Roam ing ..... ...... ....... .... ...... .... ....... .... Se amle ss a mong 802.11 a co mpli ant ac c es s points, in cluding across subnets via Harmony AP Controller Radio Radi o Data Rate ...... ...... .... ...... ..... .... 54 Mbp s, 48 Mbp s, 3 6 Mb ps, 2 4 Mbp s, 18 Mb ps , 12 Mb ps, 9 Mbp s, 6 Mbp s in 802.
70 Pa r a m e t e r s Para meter Ra nge Defaul t Netwo rk M ode Ad H oc*, Infr astru cture Infr astru cture Powe r S avi ng (Infrastr ucture o nly) Off, Nor mal, M aximu m Off 2X Mo de* Enabled, Disabled Disabled SS ID Up to 3 2 cha r a ct e rs a ny Channe l (C onfigurable in Ad Hoc mode ; assigned by AP in In f r a st r u c t u r e mode) U.
71 Ap p e ndi x B T echnic al Support and T raining If you are having a problem using a Harmo ny 802.11a network adapter and cannot resolve i t with th e informati on in Chap ter 6, gath er the follow.
72 Ind e x A ACK Er rors .................................................................................... 53 Ad Hoc ............................................................... 17 , 20 , 23 , 28 , 40 , 70 Add New H ardware Wizar d .............
73 Domain Contr oller .......................................................................... 45 Duplic ate Fra mes ............................................................................ 53 E 802.11a Netwo rks ................................
74 K Key S ize ................................................................................. 42 , 70 L Last ACK RSSI ................................................................................ 53 Last Frame’s RS SI .........................
75 Proto col Config uration ................................. ................................... 61 – 62 PROX11A.SYS ............................................................................ 17 , 63 PROX11AN4.SYS ................................
76 Throughput .................................................................................. 65 Topologies .............................................................................. 23 – 26 Transmit Rate. See Send Rate Trouble shooting S uggestion s .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Proxim Harmony 802.11a Network Adapter 802.11a è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Proxim Harmony 802.11a Network Adapter 802.11a - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Proxim Harmony 802.11a Network Adapter 802.11a imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Proxim Harmony 802.11a Network Adapter 802.11a ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Proxim Harmony 802.11a Network Adapter 802.11a, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Proxim Harmony 802.11a Network Adapter 802.11a.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Proxim Harmony 802.11a Network Adapter 802.11a. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Proxim Harmony 802.11a Network Adapter 802.11a insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
