Manuale d’uso / di manutenzione del prodotto NWD210N del fabbricante ZyXEL
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www .zyxel.com NWD210N Wireless N USB Adapter User ’ s Guide Ve r s i o n 1 . 0 04/2008 Edition 3.
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About This User's Guide NWD210N User’s Guide 3 About This User's Guide Intended Audience This manual is intended for people who wa nt to configure the NWD210N using the ZyXEL utility . Y ou should have at least a basic know ledge of TCP/IP netw orking concepts and topology .
Document Conventions NWD210N User’s Guide 4 Document Conventions W arnings and Notes These are how warnings and notes are shown in this User ’ s Guide.
Document Conventions NWD210N User’s Guide 5 Icons Used in Figures Figures in this User ’ s Guide may use the following generic icons. Wireless Access Point Computer Notebook computer Server Modem .
Safety Warnings NWD210N User’s Guide 6 Safety Warnings 1 For your safety , be sure to read and follow all warni ng notices and instructions. • Do NOT use this product near water , for example, in a wet basement or near a swimming pool. • Do NOT expose your device to dampness, dust or corrosive liquids.
Contents Overview NWD210N User’s Guide 7 Contents Overview Introduction and Configuration ............................................................................................ 19 Getting S tarted ... ................. ................ .......
Contents Overview NWD210N User’s Guide 8.
Table of Contents NWD210N User’s Guide 9 Table of Contents About This User's Guide ................................................................ .......................................... 3 Document Conventions...............................
Table of Contents NWD210N User’s Guide 10 3.1 Wireless LAN Overview ............... ................ ................ ................ ................ ................ ..... .. 37 3.2 Wireless LAN Security .............. ................ ..........
Table of Contents NWD210N User’s Guide 11 6.4 Problems Communicating with Ot her Computers ..... ................ ................... ................ ....... 74 Chapter 7 Product Sp ecifications .....................................................
Table of Contents NWD210N User’s Guide 12.
List of Figures NWD210N User’s Guide 13 List of Figures Figure 1 The NWD210N ..... ...... ....... ................ ................ ................ ................ ................ ........ ............... 21 Figure 2 Application: Infrastruc ture .
List of Figure s NWD210N User’s Guide 14 Figure 39 Profile: Security Settings ............. ............ ................. ................ ................ ............... ....... ....... 60 Figure 40 Profile: Confirm New Se tt ings ...............
List of Figures NWD210N User’s Guide 15 Figure 82 Red Hat 9.0: DNS Sett ings in resolv .con f ............... ................ ............. ................ ............. .1 0 0 Figure 83 Red Hat 9.0: Restart Et hernet Card . ................ .....
List of Figure s NWD210N User’s Guide 16.
List of Tables NWD210N User’s Guide 17 List of Tables T able 1 NW D210N External View ............ .......... ...... ................. ................ ................ ................ ... .......... 21 T able 2 NW D210N LEDs ... ................ .
List of Tables NWD210N User’s Guide 18.
19 P ART I Introduction and Configuration Getting Started (21) T utorial (27) W ireless LANs (37) W ireless Config uration (47) Maintenance (67).
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NWD210N User’s Guide 21 C HAPTER 1 Getting Started This chapter introduces th e NWD210N and prepares you to use the ZyXEL utility . The ZyXEL utility is a tool that help s you configure your NWD210N. 1.1 About Y our NWD210N Y our NWD210N is an IEEE 802.
Chapter 1 Getting Star ted NWD210N User’s Guide 22 The following table describes the operation of the NWD210N’ s LEDs. 1.2 Application Overview This section describes some network applicatio ns for the NWD210N.
Chapter 1 Getting Started NWD210N User’s Guide 23 Figure 2 Application: Infrastructure 1.2.2 Ad-Hoc T o set up a small indepe ndent wireless workgroup without an AP , use Ad-Hoc (see Chapter 4 on page 56 ). Ad-Hoc does not requi re an AP or a wired ne twork.
Chapter 1 Getting Star ted NWD210N User’s Guide 24 1.3 Hardware and Utility Inst allation Follow the instructions in the Quick S tart Guide to install the ZyXEL utility and make hardware connections . 1.3.1 ZyXEL Utility Icon After you install and start the ZyXEL utility , an icon for the ZyXEL utility appears in the system tray .
Chapter 1 Getting Started NWD210N User’s Guide 25 1.4.1 Enabling Windows Wireless Configuration " When you use the ZyXEL util ity , it automatically disables Windows XP’ s wireless configuration tool. If you want to use the W indows XP wireless co nfiguration tool to configure the NWD210N, you need to disable the ZyXEL utility .
Chapter 1 Getting Star ted NWD210N User’s Guide 26.
NWD210N User’s Guide 27 C HAPTER 2 Tutorial The following sections show you how to join a wireless networ k using the ZyXEL utility , as in the following diagram. The wireless client is labeled C and the access point is labeled AP . Figure 6 Infrastructure Network 2.
Chapter 2 Tutorial NWD210N User’s Guide 28 3 In the NWD210N’ s utility , click the Adapter tab, enable WPS and select PBC (Push Button Configuration) . In the screen that appears, click St a r t . 4 Log into the AP’ s web configurator and locate its WPS settings section.
Chapter 2 Tutorial NWD210N User’s Guide 29 Figure 7 Example WPS Process: PBC Method 2.1.2 PIN Configuration When you use the PIN configuration method, yo u need to use both the NWD210N’ s utility and the AP’ s config uration interface. 1 In the NWD210N’ s Adaptor tab, sele ct WPS and PIN - Use this Device’ s PIN .
Chapter 2 Tutorial NWD210N User’s Guide 30 The following figure shows you th e example of configuring the wireless network and security on the NWD210N and the AP (ZyXEL ’ s NBG3 34W in this example) by using the PIN method.
Chapter 2 Tutorial NWD210N User’s Guide 31 Figure 8 Example WPS Process: PIN Method Authentication by PIN SECURITY INFO WITHIN 2 MINUTES COMMUNICA T ION NWD210N AP.
Chapter 2 Tutorial NWD210N User’s Guide 32 2.2 Connecting to an AP Without Using WPS There are three ways to connect the wireless client (the NWD210N) to a network without using WPS. • Configure nothing and leave the wireless client to automatically scan for and connect to any available network that has no wireless security configured.
Chapter 2 Tutorial NWD210N User’s Guide 33 Figure 10 ZyXEL Utility: Security Settings 5 The Summary window appears. Chec k your settings and click Save to continue. Figure 1 1 ZyXEL Utility: Summary 6 The ZyXEL utility returns to the Link Info screen while it connects to the wireless network using your settings.
Chapter 2 Tutorial NWD210N User’s Guide 34 T roubleshooting section of this User's Gu ide or contact your network administrator if necessary . 2.2.2 Creating and Using a Profile A profile lets you automatically connect to th e same wireless network every time you use the ZyXEL utility .
Chapter 2 Tutorial NWD210N User’s Guide 35 Figure 15 ZyXEL Utility: Profile Security 5 This screen varies depending on the encryp tion method you select ed in the previous screen. In this example, enter the pre-shared key and leav e the encryption type at the default setting.
Chapter 2 Tutorial NWD210N User’s Guide 36 " Only one profile can be activa ted and used at any given time. Figure 18 ZyXEL Utility: Profile Activate 8 When you activate the new profile , the ZyXEL utility goes to the Link Info scre en while it connects to the AP using your settings.
NWD210N User’s Guide 37 C HAPTER 3 Wireless LANs This chapter provides backgro u nd inform ation on wireless Local Area Networks. 3.1 Wireless LAN Overview The following figure pro vides an exampl e of a wireless network with an AP . See Figure 3 on page 23 for an Ad Hoc network example.
Chapter 3 Wireless LANs NWD210N User’s Guide 38 Like radio stations or television channels, e ach wireless network uses a spec ific channel, or frequency , to send and receive information. • Every device in the same wireless network must use security compatible with the AP or peer computer .
Chapter 3 Wirel ess LANs NWD210N User’s Guide 39 Y our NWD210N allows you to configure up to fo ur 64-bit, 128-bit or 152-bit WEP keys. Only one key is used as the default key at any one time. 3.2.1.1.2 Authentication T ype The IEEE 802.1 1b/g standard describes a simple authentication method between the wireless stations an d AP .
Chapter 3 Wireless LANs NWD210N User’s Guide 40 If both an AP and the wireless clients suppor t WP A2 and you ha ve an external RADIUS server , use WP A2 for stronger data encryption.
Chapter 3 Wirel ess LANs NWD210N User’s Guide 41 3.3.2 PIN Configuration Each WPS-enabled device has its own PIN (Personal Identificatio n Number). This may either be static (it cannot be chang ed) or dynamic (in some devices yo u can generate a new PIN by clicking on a button in th e configuration interface).
Chapter 3 Wireless LANs NWD210N User’s Guide 42 Figure 20 Example WPS Process: PIN Method 3.3.3 How WPS Works When two WPS-enabled devices connect, each de vice must assume a spe cific role.
Chapter 3 Wirel ess LANs NWD210N User’s Guide 43 Figure 21 How WPS works The roles of registrar and enrollee last only as long as the WPS setup process is active (two minutes). The next time you use WPS, a different device can be the registrar if necessary .
Chapter 3 Wireless LANs NWD210N User’s Guide 44 Figure 22 WPS: Example Network S tep 1 In step 2 , you add ano ther wireless client to the network. Y ou know that Client 1 supports registrar mode, but it is better to use AP1 for the WPS handshake w ith the new client since you must connect to the access point anyway in order to use the network.
Chapter 3 Wirel ess LANs NWD210N User’s Guide 45 Figure 24 WPS: Example Network S tep 3 3.3.4 Limit ations of WPS WPS has some limitati ons of which you should be aware. • WPS works in Infrastructure networks on ly (where an AP and a wireless client communicate).
Chapter 3 Wireless LANs NWD210N User’s Guide 46 Y ou can easily check to see if this has happ ened. WPS works between only two devices simultaneously , so if another device has enrolle d y our device will b e unable to enroll, and will not have access to the network.
NWD210N User’s Guide 47 C HAPTER 4 Wireless Configuration This chapter shows you how to c onfigure your NWD210N. 4.1 ZyXEL Utility Screen Summary This section describes th e ZyXEL utility screens. Figure 25 ZyXEL Utility Menu Summary The following table describes the menus.
Chapter 4 Wireless Configuration NWD210N User’s Guide 48 Figure 26 Link Info The following table describes the labels in this screen. T able 5 Link Info LABEL DESCRIPTION Wireless Network S tatus Profile Name This is the name of the profile you are currently using.
Chapter 4 Wireless Configuration NWD210N User’s Guide 49 4.2.1 T rend Chart Click T rend Chart in the Link Info screen to display a screen as shown below . Use this screen to view real-time data traffic statistics. Figure 27 Link Info: T rend Chart The following table describes the labels in this screen.
Chapter 4 Wireless Configuration NWD210N User’s Guide 50 Figure 28 Site Survey The following table describes the labels in this screen. T able 7 Site Survey LABEL DESCRIPTION Available Network List Click a column heading to sort the entries. , , or denotes that the wireless device is in infrastructure mode and the w ireless security is activated.
Chapter 4 Wireless Configuration NWD210N User’s Guide 51 4.3.1 Security Settings When you configure the NWD210N to connect to a network with wireless security activated and the security settings are disable d on th e NWD210N, the screen varies according to the encryption method used by the selected network.
Chapter 4 Wireless Configuration NWD210N User’s Guide 52 4.3.1.2 WP A-PSK/WP A2-PSK Figure 30 Security Setting: WP A-PSK/WPA2-P SK The following table describes the labels in this screen. 4.3.1.3 WP A/WP A2 The screen that displays whe n you select WP A or WP A2 differs, depending on the EAP T ype you select ( TLS , PEAP or TTLS ).
Chapter 4 Wireless Configuration NWD210N User’s Guide 53 Figure 31 Security Settings: WP A/WP A2 The following table describes the labels in this screen. T able 10 Security Setting: WP A/WP A2 LABEL DESCRIPTION Encryption T ype The encry ption mechanisms used for WP A/WP A2 and WP A-PSK/WP A2-PSK are the same.
Chapter 4 Wireless Configuration NWD210N User’s Guide 54 4.3.1.4 IEEE 802.1x Configure IEEE 802.1x security with various authentication methods in this screen. " The procedure to configur e 802.1x is different in Windows V ista. See Section 4.6 on page 64 for information on setting up y our NWD210N to use 802.
Chapter 4 Wireless Configuration NWD210N User’s Guide 55 4.3.2 Server Certif icate Setting Screen This screen displays if you selected V alidate Server Certifi c ate in the WP A , WP A2 or 802.1x screens. Figure 33 Server Certificate Setting Screen The following table describes the labels in this screen.
Chapter 4 Wireless Configuration NWD210N User’s Guide 56 Figure 34 Summary Screen The following table describes the labels in this screen. 4.4 The Profile Screen A profile is a set of wireless para meters that you need to connect to a wi reless netw ork.
Chapter 4 Wireless Configuration NWD210N User’s Guide 57 Figure 35 Profile The following table describes the labels in this screen. T able 14 Profile LABEL DESCRIPTION Profile List Click a column heading to sort the entries. , , or denotes that the wireless device is in infrastructure mode and the w ireless security is activated.
Chapter 4 Wireless Configuration NWD210N User’s Guide 58 4.4.1 Adding a New Prof ile Follow the steps below to add a new profile. 1 Click Add in the Pr ofile sc reen. An Add New Profile screen displays as shown next. Figure 36 Profile: Add a New Profile The following table describes the labels in this screen.
Chapter 4 Wireless Configuration NWD210N User’s Guide 59 2 If you select the Infrastructure network type in the prev ious screen, skip to step 3 . If you select the Ad-Hoc network type in the previous scr een, a screen displays as follows. Select a Channel number and Wir eless Mode and click Next to continue.
Chapter 4 Wireless Configuration NWD210N User’s Guide 60 Figure 38 Profile: Wireless Settings 4 The screen varies depending o n the encryption method you select in the previous screen. The settings must be exactly the same on the AP or other peer wireless computers as they are on the NWD210N.
Chapter 4 Wireless Configuration NWD210N User’s Guide 61 6 T o use this network profile, click the Activate Now button. Otherwise, click the Activate Later button. Y ou can activate only one profile at a time. " Once you activate a profile, the ZyXEL utility will use that profile the next time it is started.
Chapter 4 Wireless Configuration NWD210N User’s Guide 62 4.5.1 WPS: PBC (Push Button Configuration) This screen allows you to use the W PS Push Button Configuration mode. S ee Section 3.3.1 on page 40 for more information. Select WPS and PBC (Push Button Configuration) in the Adapter screen.
Chapter 4 Wireless Configuration NWD210N User’s Guide 63 4.5.2 WPS: PIN - Use this Device’ s PIN This screen allows you to use the WPS Personal Identification Number mode, by entering the NWD210N’ s unique PIN in the configuration utility of the other WPS-enabled device.
Chapter 4 Wireless Configuration NWD210N User’s Guide 64 Figure 45 WPS: PIN - Use the PIN from the AP or Wireless Router The following table describes the labels in this screen. 4.6 Security Settings in Windows V ist a When you use the NWD210N in W indows V ista, the procedure for setting up WP A, WP A2 and 802.
Chapter 4 Wireless Configuration NWD210N User’s Guide 65 2 In the WP A , WP A2 or 802.1x security screen (see Section 4.3 .1.3 on page 52 and Section 4.3.1.4 on page 54 ), select PEAP as the EAP T ype . Note that the Login Name and Password fields are greyed-o ut (not available).
Chapter 4 Wireless Configuration NWD210N User’s Guide 66 2 In the WP A , WP A2 or 802.1x security screen, select TLS as the EAP T ype . Note that the Login Name , Certificate and V alidate Server Certificate fields are greyed-out (not available). 3 Click Next .
Chapter 5 Maint enance NWD210N User’s Guide 67 C HAPTER 5 Maintenance This chapter describes how to unin stall or upgrade the ZyXEL utility . 5.1 The About Screen The About screen displays driver and util ity vers ion numbers of the NWD210N. T o display the screen as shown belo w , click the about ( ) button.
Chapter 5 Maintenan ce NWD210N User’s Guide 68 5.2 Uninst alling the ZyXEL Utility Follow the steps below to rem ove (or uninstall) the ZyXEL util ity from your computer . " Before you uninstall the ZyXEL utility , take note of your curr ent wireless configurations.
Chapter 5 Maint enance NWD210N User’s Guide 69 T o perform the upgrade, follow the steps below . 1 Download the latest version of the utility fro m the ZyXEL web site and save the file on your computer . 2 Follow the steps in Section 5.2 on pag e 68 to remove the current ZyXEL utility from your computer .
Chapter 5 Maintenan ce NWD210N User’s Guide 70.
71 P ART II T roubleshooting and S pecifications T roubleshooting (73) Product Specification s (77).
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NWD210N User’s Guide 73 C HAPTER 6 Troubleshooting This chapter offers some sugg estions to solve problems you might encounter . The potential problems are divided into the following categories. • Power , Hardware Connections, and LEDs • Accessing the Utility • Link Quality • Problems Communicating wi th Other Computers 6.
Chapter 6 Troub leshooting NWD210N User’s Guide 74 1 Make sure the NWD210N is properly insert ed and the LEDs are on. Refer to the Quick Start Guide for the LED descriptions. 2 Use the Device Manager to chec k for possible ha rdware conflicts. Click St a r t , Settings , Control Panel , System , Hardwar e and Device Manager .
Chapter 6 Troubleshooting NWD210N User’s Guide 75 • V erify that the peer computer(s) is turned on. • Make sure the NWD210N comp uter and the peer computer(s) are using the same SSID and channel. • Make sure that the computer and the peer computer(s) share the same security settings.
Chapter 6 Troub leshooting NWD210N User’s Guide 76.
NWD210N User’s Guide 77 C HAPTER 7 Product Specifications T able 21 Product Specifications PHYSICAL AND ENVIRONMENTAL Product Name NWD210N Draft 2.0 802.1 1n Wireless USB Adapter Interface USB 2.0 S tandards IEEE 802.1 1b IEEE 802.1 1g IEEE 802.1 1n (Draft 2.
Chapter 7 Produ ct Specifications NWD210N User’s Guide 78 Receiver Sensitivity T olerance: +/- 1 dBm IEEE 802.1 1b: -80 dBm at 1 1 Mbps IEEE 802.1 1g: -68 dBm at 54 Mbps IEEE 802.1 1n (draft): -62 dBm at HT20, -59 dBm at HT40 SOFTW ARE SPECIFICA TIONS Device Drivers Windows Vist a Windows XP 64-bit Windows XP Windows 2000 MAC OS 10.
79 P ART III Appendices and Index " The appendices provide general informatio n. Some details may not apply to your NWD210N. Setting up Y our Computer ’ s IP Address (81) W ireless LANs (103) W.
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NWD210N User’s Guide 81 A PPENDIX A Setting up Y our Computer ’ s IP Address " The purpose of this appendix is to show you how to configure an IP address on your computer depending on what operating system you have. It does NOT mean that your NWD210N supports all these operati ng systems.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 82 Figure 53 WIndows 95/98/Me: Network: Co nfiguration Inst alling Components The Network window Configuration tab displays a list of installed components. Y ou need a network adapter , the TCP/IP protocol and Client for Microsoft Netwo rks.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 83 Configuring 1 In the Network window Configuration tab, select your network adapter's TCP/IP entry and click Properties 2 Click the IP Address tab. • If your IP address is dynamic, select Obtain an IP address automatically .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 84 Figure 55 Windows 95/98/Me: TCP/IP Properties: DNS Configuration 4 Click the Gateway tab. • If you do not know you r gateway’ s IP addr ess, remove previously installed gateways.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 85 Figure 56 Windows XP : S tart Menu 2 In the Control Panel , double-click Network Connections ( Network and Dial-up Connections in W indow s 2000/NT). Figure 57 Windows XP: Control Panel 3 Right-click Local Area Connection and then click Pr operties .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 86 Figure 58 Windows XP: Control Panel: Network Connections: Properties 4 Select Internet Protocol (TCP/IP) (under the Genera l tab in W in XP) and then click Properties .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 87 Figure 60 Windows XP: Internet Protocol (TCP/IP) Prope rties 6 If you do not know your gateway's IP ad dress, remove any previously installed gateways in the IP Settings tab and click OK .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 88 Figure 61 Windows XP : Advanced TCP/ IP Properties 7 In the Internet Protocol TCP/IP Pr operties window (the General tab in W indow s XP): • Click Obtain DNS server address automatically if yo u do not know your DNS server IP address(es).
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 89 Figure 62 Windows XP: Internet Protocol (TCP/IP) Prope rties 8 Click OK to close the Internet Protocol (TCP/IP) Properties window . 9 Click Close ( OK in W i ndows 2000/NT) to close the Local Area Connecti on Properties window .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 90 Figure 63 Windows Vista: S tart Menu 2 In the Control Panel , double-click Network and Internet . Figure 64 Windows Vista: Control Pa nel 3 Click Network and Sharing Center .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 91 5 Right-click Local Area Connection and then click Pr operties . " During this procedure, click Continue whenever Windows displays a screen saying that it needs y our permission to continue.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 92 7 The Internet Protocol V ersion 4 (TCP/IPv4) Properties window opens (the General tab ).
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 93 Figure 70 Windows Vista: Advanced T CP/IP Properties 9 In the Internet Protocol V ersion 4 (TCP/IPv4) Properties window , (the Ge neral tab ): • Click Obtain DNS server address automatically if yo u do not know your DNS server IP address(es).
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 94 Figure 71 Windows Vista: Internet Pr otocol V ersion 4 (TCP/IPv4) Pro perties 10 Click OK to close the Internet Pr otocol V e rsion 4 (TCP/IPv4) Pr operties window . 11 Click Close to close the Local Area Connection Properties window .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 95 Figure 72 Macintosh OS 8/9: Apple Menu 2 Select Ethernet built-in from the Connect via list. Figure 73 Macintosh OS 8/9: TCP/IP 3 For dynamically assigned settings, select Using DHCP Server from the Configure: list.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 96 • T ype your IP address in the IP Address box. • T ype your subnet mask in the Subnet mask box. • T ype the IP address of your NWD210N in the Router address box. 5 Close the TCP/IP Contr ol Panel .
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 97 Figure 75 Macintosh OS X: Network 4 For statically assigned settings, do the following: •F r o m t h e Configure box, select Manually . • T ype your IP address in the IP Address box.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 98 " Make sure you are logged in as the root administrator . Using the K Desktop Environment (KDE) Follow the steps below to configure your computer IP address using the KDE.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 99 • If you have a dyna mic IP address, click Automatically obtain IP address settings with and select dhcp from the drop down list.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 100 Figure 80 Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0 • If you have a static IP address, enter static in t he BOOTPROTO= field. T ype IPADDR = followed by the IP address (in do tted decimal notation) and type NETMASK = followed by the subnet mask.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 101 V erifying Settings Enter ifconfig in a terminal screen to ch eck your TCP/IP properties. Figure 84 Red Hat 9.0: Che c king TCP/IP Properties [root@localhost]# ifconfig eth0 Link encap:Ethernet HWadd r 00:50:BA:72:5B:44 inet addr:172.
Appendix A Setting up Your Computer’s IP Address NWD210N User’s Guide 102.
NWD210N User’s Guide 103 A PPENDIX B W ireless LANs Wireless LAN T o pologies This section discusses ad-hoc and in frastructure w ireless LAN topologies. Ad-hoc Wireless LAN Configuration The simplest WLAN configuration is an inde pendent (Ad-hoc) WLAN that connects a se t of computers with wireless adapters (A, B, C).
Appendix B Wireless LANs NWD210N User’s Guide 104 Figure 86 Basic Service Set ESS An Extended Service Set (ESS) consists of a series of overlappi ng BSSs, each containing an access point, with each access point connected together by a wired network.
Appendix B Wir eless LANs NWD210N User’s Guide 105 Figure 87 Infrastructure WLAN Channel A channel is the radio frequency(ies) used by wireless devices to transmit and receive data.
Appendix B Wireless LANs NWD210N User’s Guide 106 Figure 88 RTS /C T S When station A sends data to the AP , it might not know that the station B is already using the channel.
Appendix B Wir eless LANs NWD210N User’s Guide 107 If the Fragmentation Threshold value is smaller than the RT S / C T S value (see previously) you set then the R TS (Request T o Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmen ted before they reach R TS/CTS size.
Appendix B Wireless LANs NWD210N User’s Guide 108 W ireless security methods ava ilable on the NWD210N are data encryption, wireless client authentication, restricting access by device MAC address and hiding the NWD210N identity .
Appendix B Wir eless LANs NWD210N User’s Guide 109 Determines the network services available to authenticated users once they are connected to the network.
Appendix B Wireless LANs NWD210N User’s Guide 11 0 For EAP-TLS authentication type, you must firs t hav e a wired connection to the network an d obtain the certificate(s) from a certificate authorit y (CA).
Appendix B Wir eless LANs NWD210N User’s Guide 111 Dynamic WEP Key Exchange The AP maps a unique ke y that is generated w ith the RADIUS se rver . This key expires when the wireless connection times out, disconnects or reauthentic ation times out. A new WEP key is generated each time r eauthentication is performed.
Appendix B Wireless LANs NWD210N User’s Guide 11 2 Encryption Both WP A and WP A2 improve data encryption by using T emporal Key Integrity Protocol (TKIP), Message Integrity Check (MIC) and IE EE 802.
Appendix B Wir eless LANs NWD210N User’s Guide 11 3 Wireless Client WP A Supplicant s A wireless client supplicant is the software that runs on an operating system instructing the wireless client how to use WP A. At the time of wri ting, the most widely available supplicant is the WP A patch for W indows XP , Funk Software's Odyssey client.
Appendix B Wireless LANs NWD210N User’s Guide 11 4 3 The AP and wireless clients generate a common PMK (Pairwise Master Key). The key itself is not sent over the network, but is derived from the PSK and the SSID.
Appendix B Wir eless LANs NWD210N User’s Guide 11 5 Antenna Overview An antenna couples RF signals onto air . A tran smitter within a wireless device sends an RF signal to the antenna, which propagates the signal through the air . The antenna also operates in reverse by capturing RF signals fro m the air .
Appendix B Wireless LANs NWD210N User’s Guide 11 6 Positioning Antennas In general, antennas should be mounted as high as practically possible and free of obstructions. In point-to–point ap plication, position both antennas at the same height and in a direct line of si ght to each othe r to attain the best performance.
NWD210N User’s Guide 11 7 A PPENDIX C Windows W ireless Management This appendix shows you how to manage your NWD210N using the W indows V ista and W indows XP wireless configuration tools. Windows V ist a T ake the following steps to connect to a wireless network using the W indows V ist a wireless configuration tool (WLAN AutoConfig).
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 11 8 Figure 92 Vi sta: The Connect T o Window The security status of each wireless networ k displays, as well as an indication of its signal strength. If you use the mouse pointer to hover over a network’ s entry , additional information about the network displ ays.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 11 9 Figure 94 Vist a: Enter Security Key Y our computer tries to connect to the wire less network. Figure 95 Vist a: Connecting If your computer has connected to the wi reless network successfully , the following screen displays.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 120 Figure 96 Vista: Successful Connection 4 If you will use this networ k again, ensure that Save this network is selected. If you save the network, you do not have to configure its settings again .
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 121 Figure 97 Vista: Choose a Connect ion Option 2 Click Manually connect to a wir eless networ k . The following sc reen displays. Figure 98 Vist a: Connect Manually The following table describes the labels in this screen.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 122 3 When you have finished filling in the fields, cli ck Next . the following screen displays. Figure 99 Vist a: Success fully Added Network 4 If you want to make any cha nges to th e settings you just configured , click Change connection settings .
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 123 1 Click St a r t () > Connect T o . In the Connect to screen, click Set up a connection or network . The following sc reen displays. Figure 100 Vi sta: Set Up An Ad-hoc Network 2 Select Set up a wir eless ad hoc (computer -to-computer) network and click Next .
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 124 " Make sure all the wireless clients on your ad-hoc netw ork can support the type of security you select. 4 Enter the Security key/Passphrase . Everybody on the network must enter th is key in their computer ’ s wireless client in order to access the ne twork.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 125 2 Double-click on the icon for wireless network connection. 3 The status window displays as shown below .
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 126 Figure 105 Windows XP SP1: Wireless Network Connection Prope rties Figure 106 Windows XP SP2: Wireless Network Connection Prope rties If you see the following screen, refer to artic le 871 122 on the Microsoft web site for information on start ing WZC.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 127 Figure 107 Windows XP SP2: WZC Not Available Connecting to a Wireless Network 1 Double-click the network icon for wireless conn ections in the system tray to open the W ireless Network Connection S tatus screen.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 128 Figure 109 Windows XP SP2: Wireless Network Connection S tatus W indows XP SP1: In the W ireless Network Connection S tatus screen, click Properties and the W ireless Networks tab to open the W ireless Network Connection Properties screen.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 129 Figure 1 1 1 Windows XP SP2: Wireless Networ k Connection The following table describes the ic ons in the wireless network list. W indows XP SP1: Click Refr esh to re load and search for available wireless devices within transmission range.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 130 Figure 1 12 Windows XP SP1 : Wireless Network Connection Properties 4 4.W indows XP SP2: If the wireless security is activated for the selected wireless network, the Wireless Network Connection screen displays.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 131 Figure 1 14 Windows XP SP2: Wireless Netw ork Connection: No Security 5 V erify that you have successfully connec ted to the selected.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 132 The following table describes the labels in this screen. Authentication Click the Authentication tab in the Wir eless (network) prop erties screen to display the screen shown next.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 133 Figure 1 16 Windows XP: Wireless (network) pr operties: Authentication The following table describes the labels in this screen.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 134 Protected EAP Properties Figure 1 17 Windows XP: Protec ted EAP Properties The following table describes the labels in this screen.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 135 Smart Card or other Certificate Proper ties Figure 1 18 Windows XP: Smart Card or other Certificate Properties The following table describes the labels in this screen. Ordering the Pref erred Networks Follow the steps below to manage y our preferred networks.
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 136 1 W indows XP SP2: Click Chang e the order of preferr ed networks in the W ireless Network Connection screen (see Figure 11 1 on page 129 ).
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 137 Move down to change it's order , click Remove to delete it or click Pr operties to view the security , authentication or connection information of the selected network. Click Add to add a preferred network into the list manually .
Appendix C Windows Wireless Manageme nt NWD210N User’s Guide 138.
NWD210N User’s Guide 139 A PPENDIX D Legal Information Copyright Copyright © 2008 by ZyXEL Communications Corporation. The contents of this publication may not be reprod uced in any part or as a wh.
Appendix D Legal Info rmation NWD210N User’s Guide 140 If this device does cause harmful inte rference to radio/television reception, which can be determined by turning th e device off and on, the user is enc ouraged to try to correct the interference by one or more of the following measures: 1 Reorient or relocate the receiving antenna.
Appendix D Legal Infor mation NWD210N User’s Guide 141 Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device has been designed for t he WLAN 2.
Appendix D Legal Info rmation NWD210N User’s Guide 142.
NWD210N User’s Guide 143 A PPENDIX E Customer Support Please have the following information r eady when you contact customer support. Required Information • Product model and serial number . • W arranty Information. • Date that you received your de vice.
Appendix E Customer Support NWD210N User’s Guide 144 • Re g u la r Ma i l : ZyXEL C ommunications, Czech s.r .o., Modranská 621, 143 01 Praha 4 - Modrany , Ceská Republika Denmark • Support E-mail: support@zyxel.dk • Sales E-mail: sales@zyxel.
Appendix E Customer Support NWD210N User’s Guide 145 India • Support E-mail: support@zyxel.in • Sales E-mail: sales@zyxel.in • T elephone: +91-1 1-30888144 to +91 -11-308 88153 • Fax: +91-1 1-30888149, +91 -11-2 6810715 • W eb: http://www .
Appendix E Customer Support NWD210N User’s Guide 146 • Regular Mail: ZyXEL Communications Inc., 1 130 N. Miller St., Anaheim, CA 92806- 2001, U.S.A. Norway • Support E-mail: support@zyxel.no • Sales E-mail: sales@zyxel.no • T elephone: +47-22-80-61-80 • Fax: +47-22-80-61-81 • W eb: www .
Appendix E Customer Support NWD210N User’s Guide 147 Sweden • Support E-mail: support@zyxel.se • Sales E-mail: sales@zyxel.se • T elephone: +46-31-744-7700 • Fax: +46-31-744-7701 • W eb: www .zyxel.se • Re g ul a r M a il : ZyXEL Communications A/S, Sjöporten 4, 41764 Göteborg, S w eden Thailand • Support E-mail: support@zyxel.
Appendix E Customer Support NWD210N User’s Guide 148.
Index NWD210N User’s Guide 149 Index A About 67 about your ZyXEL Device 21 Access Point (AP) 37 Access point (AP) 37 Access Point. See also AP . ACT LED 22 activating a profile 61 adapter 61 Ad-Hoc 23 , 59 Advanced Encryption St andard 39 See AES.
Index NWD210N User’s Guide 150 EAP-TTLS 39 encryption 11 2 encryption type 39 , 51 , 53 environmental specifications 77 ESS 104 Extended Service Se t, See ESS 104 F fast power save 62 FCC interf ere.
Index NWD210N User’s Guide 151 product specifications 77 profile 48 , 57 activation 61 add new 58 configure 32 , 34 default 56 delete 57 edit 57 information 57 new 57 , 58 PSK 11 2 Q Quick S tart Gu.
Index NWD210N User’s Guide 152 weight 77 WEP 38 , 51 automatic setup 38 manual setup 38 , 51 passphrase 38 , 51 WEP (Wired Equivalent Priva cy) 38 WEP Encryption 51 WEP key generation 38 Wi-Fi Prote.
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 ZyXEL NWD210N 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 ZyXEL NWD210N - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso ZyXEL NWD210N imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul ZyXEL NWD210N ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il ZyXEL NWD210N, 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 ZyXEL NWD210N.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il ZyXEL NWD210N. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo ZyXEL NWD210N 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.
