Communications N220 Guia do Utilizador

www.zyxel.comwww.zyxel.comN220Wireless N-lite USB AdapterCopyright © 2010 ZyXEL Communications CorporationVersion 1.0Edition 1, 07/2010

Contents OverviewN220 User’s Guide10

Table of ContentsN220 User’s Guide11Table of ContentsAbout This User's Guide...

Table of ContentsN220 User’s Guide123.1.1 What You Can Do in This Chapter ...

N220 User’s Guide13CHAPTER 1 Getting Started1.1 OverviewThe ZyXEL N220 Wireless N-lite USB Adapter brings you a better Internet experience over exi

Chapter 1 Getting StartedN220 User’s Guide141.2 FeaturesYour N220 is an IEEE 802.11n draft 2.0 compliant wireless LAN adapter. It can also connect to

Chapter 1 Getting StartedN220 User’s Guide151.3 Hardware InstallationThis sections shows you how to install your N220.1 Locate an available USB port

Chapter 1 Getting StartedN220 User’s Guide161.4.2 Installing the ZyXEL UtilityTo install the ZyXEL Utility:1 Make sure the N220 is disconnected from

Chapter 1 Getting StartedN220 User’s Guide174 Double-click the USBWireless-Leopard.pkg to run the installation program. When it opens, follow the on-

Chapter 1 Getting StartedN220 User’s Guide181.4.2.1 Uninstalling the ZyXEL UtilityWhile you can drag the ZyXEL Utility from your Applications folder

Chapter 1 Getting StartedN220 User’s Guide191.5 Device ApplicationsThis section describes some network applications for the N220. You can either set

Chapter 1 Getting StartedN220 User’s Guide20Ad-Hoc To set up a small independent wireless workgroup without an AP, use Ad-Hoc.Ad-Hoc does not require

N220 User’s Guide21CHAPTER 2 Wireless LANs2.1 OverviewThis section provides background information on wireless Local Area Networks.2.1.1 What You C

Chapter 2 Wireless LANsN220 User’s Guide22EncryptionThe process of taking data and encoding it, usually using a mathematical formula, so that it becom

Chapter 2 Wireless LANsN220 User’s Guide23• If two wireless networks overlap, they should use a different channel.Like radio stations or television c

Chapter 2 Wireless LANsN220 User’s Guide24• Automatic WEP key generation based on a “password phrase” called a passphrase. The passphrase is case sens

Chapter 2 Wireless LANsN220 User’s Guide25For EAP-TLS authentication type, you must first have a wired connection to the network and obtain the certi

Chapter 2 Wireless LANsN220 User’s Guide26Depending on the devices you have, you can either press a button (on the device itself, or in its configurat

Chapter 2 Wireless LANsN220 User’s Guide27When you use the PIN method, you must enter the PIN from one device (usually the wireless client) into the

Chapter 2 Wireless LANsN220 User’s Guide28The following figure shows a WPS-enabled wireless client (installed in a notebook computer) connecting to th

Chapter 2 Wireless LANsN220 User’s Guide29already part of a network, it sends the existing information. If not, it generates the SSID and WPA(2)-PSK

About This User's GuideN220 User’s Guide3About This User's GuideIntended AudienceThis manual is intended for people who want to configure

Chapter 2 Wireless LANsN220 User’s Guide30subsequent WPS connections in which it is involved. If you want a configured AP to act as an enrollee, you m

Chapter 2 Wireless LANsN220 User’s Guide31In step 3, you add another access point (AP2) to your network. AP2 is out of range of AP1, so you cannot us

Chapter 2 Wireless LANsN220 User’s Guide32• WPS works only with other WPS-enabled devices. However, you can still add non-WPS devices to a network you

N220 User’s Guide33CHAPTER 3 ZyXEL Utility - Mac OS X3.1 OverviewThis chapter shows you how to use the ZyXEL utility to configure your N220 using th

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide34Wi-Fi Protected Access (WPA)The WPA protocol affords users with vastly stronger security than WEP

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide353.3 The Profile Screen This screen allows you to configure and manage wireless profiles.Figure

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide36The following table describes the labels in this screen. Table 4 ZyXEL Utility: Profile LABEL D

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide373.4 The Profile - System Configuration ScreenThis screen allows you to configure system and net

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide383.5 The Profile - Authentication and Security ScreenThis screen allows you to configure security

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide39The following table describes the labels in this screen. Table 6 ZyXEL Utility: Profile - Auth

About This User's GuideN220 User’s Guide4Customer SupportShould problems arise that cannot be solved by using this manual, please contact your ve

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide403.6 The Link Status Screen This screen allows you to view the status of the N220’s wireless conn

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide413.7 The Site Survey Screen This screen allows you to view available networks and connect to a n

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide42The following table describes the labels in this screen. Table 8 ZyXEL Utility: Site Survey LAB

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide433.8 The Statistics Screen This screen allows you to view statistics on network traffic between

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide44Frames Failed to Receive ACK After All RetriesThis displays the number of frames transmitted by t

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide453.9 The Advanced Screen This screen allows you to configure advanced network settings on your N

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide463.10 The WPS ScreenThis screen allows you to configure the N220’s Wi-Fi Protected Security (WPS)

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide47AuthenticationThis field indicates the authentication type required by your N220 while using WPS

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide483.10.1 The Information ScreenWhile in the WPS screen, you can view information about any AP in t

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide493.10.2 The Profile Details ScreenWhile in the WPS screen, you can view information about any pr

Document ConventionsN220 User’s Guide5Document ConventionsWarnings and NotesThese are how warnings and notes are shown in this User’s Guide. Warnings

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide503.11 The About Screen This screen shows you the driver, utility version, and MAC address of your

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide51The following table describes the labels in this screen.Table 14 Mac OS X: About LABEL DESCRIP

Chapter 3 ZyXEL Utility - Mac OS XN220 User’s Guide52

N220 User’s Guide53CHAPTER 4 Troubleshooting4.1 OverviewThis chapter offers some suggestions to solve problems you might encounter. The potential pr

Chapter 4 TroubleshootingN220 User’s Guide544 If the problem continues, contact the vendor.4.3 Accessing the ZyXEL UtilityI cannot access the ZyXEL U

Chapter 4 TroubleshootingN220 User’s Guide554.5 Problems Communicating with Other ComputersThe computer with the N220 installed cannot communicate w

Chapter 4 TroubleshootingN220 User’s Guide56

N220 User’s Guide57CHAPTER 5 Product SpecificationsTable 15 Product Specifications PHYSICAL AND ENVIRONMENTALProduct Name N220 Wireless N-lite USB

Chapter 5 Product SpecificationsN220 User’s Guide58Transmit Power(+/- 1.5 dB)802.11b: 1/2/5.5/11M: 18.5 dBm 802.11g: 54/48M: 15dBm24/36M: 15dBm12/18M:

Chapter 5 Product SpecificationsN220 User’s Guide59Operation Channels N. America & Taiwan HT202.412GHz~ 2.462GHz 1-11N. America & Taiwan HT40

Document ConventionsN220 User’s Guide6Icons Used in FiguresFigures in this User’s Guide may use the following generic icons. Wireless Access Point Com

Chapter 5 Product SpecificationsN220 User’s Guide60Wireless QoS Wi-Fi Multi Media (WMM)Wi-Fi Protected Setup (WPS)Push button configurationUse device&

N220 User’s Guide61APPENDIX A Wireless LANsThis appendix discusses ad-hoc and infrastructure wireless LAN topologies.Ad-hoc Wireless LAN Configuratio

Appendix A Wireless LANsN220 User’s Guide62BSSA Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless

Appendix A Wireless LANsN220 User’s Guide63ESSAn Extended Service Set (ESS) consists of a series of overlapping BSSs, each containing an access point

Appendix A Wireless LANsN220 User’s Guide64adjacent AP is using. For example, if your region has 11 channels and an adjacent AP is using channel 1, th

Appendix A Wireless LANsN220 User’s Guide65If the RTS/CTS value is greater than the Fragmentation Threshold value (see next), then the RTS (Request T

Appendix A Wireless LANsN220 User’s Guide66IEEE 802.11g Wireless LANIEEE 802.11g is fully compatible with the IEEE 802.11b standard. This means an IEE

Appendix A Wireless LANsN220 User’s Guide67Note: You must enable the same wireless security settings on the N220 and on all wireless clients that you

Appendix A Wireless LANsN220 User’s Guide68• Access-RejectSent by a RADIUS server rejecting access.• Access-AcceptSent by a RADIUS server allowing acc

Appendix A Wireless LANsN220 User’s Guide69EAP-MD5 (Message-Digest Algorithm 5)MD5 authentication is the simplest one-way authentication method. The

Safety WarningsN220 User’s Guide7Safety Warnings• Do NOT use this product near water, for example, in a wet basement or near a swimming pool.• Do NOT

Appendix A Wireless LANsN220 User’s Guide70LEAPLEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE 802.1x. Dynamic

Appendix A Wireless LANsN220 User’s Guide71If both an AP and the wireless clients support WPA2 and you have an external RADIUS server, use WPA2 for s

Appendix A Wireless LANsN220 User’s Guide72The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference between the two

Appendix A Wireless LANsN220 User’s Guide732 The RADIUS server then checks the user's identification against its database and grants or denies n

Appendix A Wireless LANsN220 User’s Guide744 The AP and wireless clients use the TKIP or AES encryption process, the PMK and information exchanged in

Appendix A Wireless LANsN220 User’s Guide75Antenna OverviewAn antenna couples RF signals onto air. A transmitter within a wireless device sends an RF

Appendix A Wireless LANsN220 User’s Guide76• Omni-directional antennas send the RF signal out in all directions on a horizontal plane. The coverage ar

N220 User’s Guide77APPENDIX B Legal InformationCopyrightCopyright © 2010 by ZyXEL Communications Corporation.The contents of this publication may not

Appendix B Legal InformationN220 User’s Guide78This device has been tested and found to comply with the limits for a Class B digital device pursuant t

Appendix B Legal InformationN220 User’s Guide79Industry Canada Statement This device complies with RSS-210 of the Industry Canada Rules. Operation is

Safety WarningsN220 User’s Guide8

Appendix B Legal InformationN220 User’s Guide80This Class B digital apparatus complies with Canadian ICES-003. Operation is subject to the following t

IndexN220 User’s Guide81IndexAabout your ZyXEL Device 14Access Point (AP) 22Access point (AP) 22Access Point. See also AP.ACT LED 14Ad-Hoc 20Advanced

IndexN220 User’s Guide82Hhidden node 64humidity 57IIBSS 61IEEE 802.11g 66IEEE 802.1x 24Independent Basic Service SetSee IBSS 61infrastructure 19Initia

IndexN220 User’s Guide83Wweight 57WEP 23automatic setup 24manual setup 24passphrase 24WEP (Wired Equivalent Privacy) 23WEP key generation 24Wi-Fi Prot

IndexN220 User’s Guide84

Contents OverviewN220 User’s Guide9Contents OverviewIntroduction and Configuration .................