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ZyXEL AG-320 User’s Guide

38

Chapter 3 Wireless LAN Network

• Every device in the same wireless network must use security compatible with the AP or 

peer computer.

Security stops unauthorized devices from using the wireless network. It can also protect 
the information that is sent in the wireless network.

3.2  Wireless LAN Security 

Wireless LAN security is vital to your network to protect wireless communications.

Configure the wireless LAN security using the 

Configuration 

or the 

Profile Security Setting 

screen. If you do not enable any wireless security on your AG-320, the AG-320’s wireless 
communications are accessible to any wireless networking device that is in the coverage area. 

Note: 

You can use only WEP encryption if you set the AG-320 to Ad-hoc mode.

See the appendices for more detailed information about wireless security.

3.2.1  Hide SSID

Normally, the AG-320 in AP mode acts like a beacon and regularly broadcasts the SSID in the 
area. You can hide the SSID instead, in which case the AG-320 in AP mode does not 
broadcast the SSID. In addition, you should change the default SSID to something that is 
difficult to guess.

This type of security is fairly weak, however, because there are ways for unauthorized wireless 
devices to get the SSID. In addition, unauthorized wireless devices can still see the 
information that is sent in the wireless network.

3.2.2  MAC Address Filter

Every device that can use a wireless network has a unique identification number, called a 
MAC address.

1

 A MAC address is usually written using twelve hexadecimal characters

2

; for 

example, 00A0C5000002 or 00:A0:C5:00:00:02. To get the MAC address for each device in 
the wireless network, see the device’s User’s Guide or other documentation.

You can use the MAC address filter to tell the AG-320 in AP mode which devices are allowed 
or not allowed to use the wireless network. If a device is allowed to use the wireless network, 
it still has to have the correct information (SSID, channel, and security). If a device is not 
allowed to use the wireless network, it does not matter if it has the correct information.

1.

Some wireless devices, such as scanners, can detect wireless networks but cannot use wireless 

networks. These kinds of wireless devices might not have MAC addresses.

2.

Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.

Содержание AG-320

Страница 1: ...ZyXEL AG 320 802 11a g Wireless CardBus Card User s Guide Version 1 00 Edition 1 9 2006...

Страница 2: ......

Страница 3: ...XEL Communications Corporation All rights reserved Disclaimer ZyXEL does not assume any liability arising out of the application or use of any products or software described herein Neither does it con...

Страница 4: ...n reception which can be determined 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 1 Reorient or relocate the re...

Страница 5: ...LAN 2 4 GHz and 5 GHz networks throughout the EC region and Switzerland with restrictions in France This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B...

Страница 6: ...nt as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied warranty of merchantability or fit...

Страница 7: ...orrosive liquids Do NOT store things on the device Do NOT install use or service this device during a thunderstorm There is a remote risk of electric shock from lightning Connect ONLY suitable accesso...

Страница 8: ...Modrany Cesk Republika info cz zyxel com 420 241 091 359 DENMARK support zyxel dk 45 39 55 07 00 www zyxel dk ZyXEL Communications A S Columbusvej 2860 Soeborg Denmark sales zyxel dk 45 39 55 07 07 FI...

Страница 9: ...rt zyxel es 34 902 195 420 www zyxel es ZyXEL Communications Arte 21 5 planta 28033 Madrid Spain sales zyxel es 34 913 005 345 SWEDEN support zyxel se 46 31 744 7700 www zyxel se ZyXEL Communications...

Страница 10: ...ZyXEL AG 320 User s Guide 10 Customer Support...

Страница 11: ...2 Application Overview 24 1 2 1 Station Mode 24 1 2 1 1 Infrastructure 24 1 2 1 2 Ad Hoc 25 1 2 2 Access Point Mode 26 1 2 3 Changing AG 320 Mode 26 1 3 AG 320 Hardware and Utility Installation 27 1...

Страница 12: ...45 4 1 1 ZyXEL Utility Screen Summary 45 4 2 The Link Info Screen 46 4 2 1 Trend Chart 47 4 3 The Site Survey Screen 48 4 3 1 Security Settings 49 4 3 1 1 WEP Encryption 49 4 3 1 2 WPA PSK WPA2 PSK 5...

Страница 13: ...blems Starting the ZyXEL Utility 71 7 2 Problems Connecting to an Access Point 71 7 3 Problems with the Link Quality 72 7 4 Problems Communicating With Other Computers 72 Appendix A Product Specificat...

Страница 14: ...ZyXEL AG 320 User s Guide 14 Table of Contents...

Страница 15: ...tings 33 Figure 19 ZyXEL Utility Profile Activate 34 Figure 20 ZyXEL Utility AP Link Info 35 Figure 21 ZyXEL Utility AP Configuration 35 Figure 22 Example of a Wireless Network 37 Figure 23 ZyXEL Util...

Страница 16: ...k Connection Status 82 Figure 61 Windows XP SP1 Wireless Network Connection Status 83 Figure 62 Windows XP SP2 Wireless Network Connection 83 Figure 63 Windows XP SP1 Wireless Network Connection Prope...

Страница 17: ...of Figures 17 Figure 82 Windows XP Internet Protocol TCP IP Properties 106 Figure 83 Macintosh OS 8 9 Apple Menu 107 Figure 84 Macintosh OS 8 9 TCP IP 107 Figure 85 Macintosh OS X Apple Menu 108 Figur...

Страница 18: ...ZyXEL AG 320 User s Guide 18 List of Figures...

Страница 19: ...7 ZyXEL Utility Menu Summary AP Mode 63 Table 18 Access Point Mode Link Info 64 Table 19 Access Point Mode Configuration 65 Table 20 Access Point Mode MAC Filter 68 Table 21 About 69 Table 22 Troubles...

Страница 20: ...ZyXEL AG 320 User s Guide 20 List of Tables...

Страница 21: ...ials User Guide Feedback Help us help you E mail all User Guide related comments questions or suggestions for improvement to techwriters zyxel com tw or send regular mail to The Technical Writing Team...

Страница 22: ...ZyXEL AG 320 User s Guide 22 Preface Graphics Icons Key Wireless Access Point Computer Notebook Computer Server Modem or Router Wireless Signal Internet Cloud...

Страница 23: ...11a b g compliant wireless LAN adapter You can also use the ZyXEL utility to turn your AG 320 into an access point AP The ZyXEL utility is a tool that helps you configure your AG 320 See the appendix...

Страница 24: ...t the network type to Infrastructure and connect to an AP or use Ad Hoc mode and connect to a peer computer another wireless device in Ad Hoc mode 1 2 1 1 Infrastructure To connect to a network via an...

Страница 25: ...e 2 Application Infrastructure 1 2 1 2 Ad Hoc To set up a small independent wireless workgroup without an AP use Ad Hoc Ad Hoc does not require an AP or a wired network Two or more wireless clients co...

Страница 26: ...Mode In the example the AG 320 is installed on computer A and set to operate in access point mode Computer A provides an Internet connection to the wireless LAN so wireless stations B and C can access...

Страница 27: ...of the AG 320 Refer to the following table for details Configuration Methods To configure your AG 320 use one of the following applications Wireless Zero Configuration WZC the Windows XP wireless conf...

Страница 28: ...top or click Start All Programs ZyXEL AG 320 Utility ZyXEL AG 320 Utility GUI 1 3 3 Accessing the ZyXEL Utility Double click on the ZyXEL wireless LAN utility icon in the system tray to open the ZyXEL...

Страница 29: ...computer see Section 2 2 on page 32 This chapter also includes a simple example of how to configure the AG 320 as an AP using the ZyXEL utility See Section 2 3 on page 34 for more information 2 1 Con...

Страница 30: ...move the wireless client closer to the AP or peer computer See Table 7 on page 48 for detailed field descriptions 4 To connect to an AP or peer computer either click an entry in the list and then cli...

Страница 31: ...ireless network using your settings When the wireless link is established the ZyXEL utility icon in the system tray turns green and the Link Info screen displays details of the active connection Check...

Страница 32: ...or example if you connect a notebook computer to wireless networks at home and at work This example illustrates how to set up a profile and connect the wireless client to an access point configured fo...

Страница 33: ...AP to which you want to connect In this example WPA PSK Figure 16 ZyXEL Utility Profile Security 5 This screen varies depending on the encryption method you selected in the previous screen In this ex...

Страница 34: ...other web site in the address bar and press ENTER If you are able to access the web site your new profile is successfully configured 10If you cannot access the Internet go back to the Profile screen...

Страница 35: ...k Info 2 If you want to change the SSID and enable wireless security for your AG 320 click the Configuration tab and refer to Section 5 3 on page 65 for detailed field descriptions Note You can use on...

Страница 36: ...ZyXEL AG 320 User s Guide 36 Chapter 2 Tutorial...

Страница 37: ...circle In this wireless network devices A and B are called wireless clients The wireless clients use the access point AP to interact with other devices such as the printer or with the Internet Every w...

Страница 38: ...should change the default SSID to something that is difficult to guess This type of security is fairly weak however because there are ways for unauthorized wireless devices to get the SSID In addition...

Страница 39: ...P key for data encryption and decryption There are two ways to create WEP keys in your AG 320 Automatic WEP key generation based on a password phrase called a passphrase The passphrase is case sensiti...

Страница 40: ...upports EAP TLS and EAP PEAP Refer to Appendix D on page 93 for descriptions For EAP TLS authentication type you must first have a wired connection to the network and obtain the certificate s from a c...

Страница 41: ...nt OTIST One Touch Intelligent Security Technology allows you to transfer your AP s SSID and WEP or WPA PSK security settings to wireless clients that support OTIST and are within transmission range Y...

Страница 42: ...yXEL utility and click the Adapter tab Select the OTIST check box enter the same Setup Key as your AP s and click Save 3 3 2 Starting OTIST Note You must click Start in the AP OTIST web configurator s...

Страница 43: ...ou must still click Start in the AP OTIST web configurator screen or hold in the OTIST button for one or two seconds for the AP to transfer settings 4 If you change the SSID or the keys on the AP afte...

Страница 44: ...ZyXEL AG 320 User s Guide 44 Chapter 3 Wireless LAN Network...

Страница 45: ...6 4 1 1 ZyXEL Utility Screen Summary This section describes the ZyXEL utility screens when the AG 320 is in station mode Figure 23 ZyXEL Utility Menu Summary Station Mode The following table describes...

Страница 46: ...e Link Info LABEL DESCRIPTION Wireless Network Status Profile Name This is the name of the profile you are currently using Network Name SSID The SSID identifies the wireless network to which a wireles...

Страница 47: ...he AP or peer computer Total Transmit This field displays the total number of data frames transmitted Total Receive This field displays the total number of data frames received Link Quality This field...

Страница 48: ...ode 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 wireless security is activated...

Страница 49: ...work Type This field displays the network type Infrastructure or Ad Hoc of the wireless device Channel This field displays the channel number used by each wireless device Encryption This field shows w...

Страница 50: ...type If you select 128 Bits in the WEP field Enter either 26 hexadecimal digits in the range of A F a f and 0 9 for example 00112233445566778899AABBCC for HEX key type or Enter 13 ASCII characters cas...

Страница 51: ...the two is that WPA PSK WPA2 PSK uses a simple common password instead of user specific credentials Select the encryption type TKIP or AES for data encryption Refer to Section 3 2 3 3 on page 40 for...

Страница 52: ...up on a RADIUS server Password This field is not available when you select TLS in the Authentication Type field Enter the password associated with the user name above Certificate This field is only a...

Страница 53: ...ser name above Certificate This field is only available when you select TLS in the Authentication Type field Select a certificate used by the authentication server to authenticate the AG 320 Note You...

Страница 54: ...to display the Profile screen as shown next The profile function allows you to save the wireless network settings in this screen or use one of the pre configured network profiles Table 12 Station Mode...

Страница 55: ...etwork to which the selected profile associate Frequency This is the wireless LAN mode of the wireless network to which the selected profile associates Connect To use and activate a previously saved n...

Страница 56: ...ation Mode Profile continued LABEL DESCRIPTION Table 14 Station Mode Profile Add a New Profile LABEL DESCRIPTION Add New Profile Profile Name Enter a descriptive name in this field SSID Select an avai...

Страница 57: ...curity is deactivated or denotes that the wireless device is in Ad Hoc mode and the wireless security is activated denotes that the wireless device is in Ad Hoc mode but the wireless security is deact...

Страница 58: ...tion and skip to step 5 Figure 35 Station Mode Profile Security Settings The screen varies depending on the encryption method you select in the previous screen The settings must be exactly the same on...

Страница 59: ...ty will use that profile the next time it is started Figure 38 Station Mode Profile Activate the Profile 4 5 The Advanced Screen To set the wireless LAN mode of the AG 320 click the Advanced tab Selec...

Страница 60: ...ion Mode Adapter The following table describes the labels in this screen Table 16 Adapter LABEL DESCRIPTION Adapter Setting Transfer Rate In most networking scenarios the factory default Fully Auto se...

Страница 61: ...this check box to enable WMM Wi Fi MultiMedia QoS Quality of Service WMM QoS allows you to prioritize wireless traffic according to the delivery requirements of individual services To do this you mus...

Страница 62: ...ZyXEL AG 320 User s Guide 62 Chapter 4 Wireless Station Mode Configuration...

Страница 63: ...rks without using a dedicated AP 5 1 1 ZyXEL Utility Screen Summary This section describes the ZyXEL utility screens when the AG 320 is in AP mode Figure 41 ZyXEL Utility Menu Summary AP Mode The foll...

Страница 64: ...igure your computer s IP address 5 2 The Link Info Screen Select the AP Mode check box and wait for about five seconds to display the screen as shown Figure 42 Access Point Mode Link Info The followin...

Страница 65: ...esses of a wireless client that is currently connected to the AG 320 Refresh Click Refresh to update this screen Table 18 Access Point Mode Link Info continued LABEL DESCRIPTION Table 19 Access Point...

Страница 66: ...in the key field below Refer to Section 3 2 3 1 on page 39 for more information At the time of writing you cannot use passphrase to generate 256 bit WEP keys Transmit Key Select a default WEP key to u...

Страница 67: ...he changes to the AG 320 Figure 44 Access Point Mode Advanced 5 5 The MAC Filter Screen The MAC Filter screen allows you to configure the AG 320 to give exclusive access to Accept devices or exclude d...

Страница 68: ...AC addresses not listed will be allowed to access the AG 320 Select Accept to permit access to the AG 320 MAC addresses not listed will be denied access to the AG 320 Filter MAC Address 1 16 Specify t...

Страница 69: ...following table describes the read only fields in this screen 6 2 Uninstalling the ZyXEL Utility Note Before you uninstall the ZyXEL utility make a note of your current wireless configurations Follow...

Страница 70: ...ent wireless configurations To perform the upgrade follow the steps below 1 Download the latest version of the utility from the ZyXEL web site and save the file on your computer 2 Follow the steps in...

Страница 71: ...may vary depending on the version of Windows Install the AG 320 in another computer If the error persists you may have a hardware problem In this case you should contact your local vendor The ZyXEL ut...

Страница 72: ...iated computers are turned on and working properly Make sure the AG 320 computer and the associated AP use the same SSID Change the AP and the associated wireless clients to use another radio channel...

Страница 73: ...North America and Taiwan IEEE 802 11b 11 Channels North America and Taiwan IEEE 802 11g 11 Channels North America and Taiwan IEEE 802 11a 19 Channels Europe IEEE 802 11b 13 Channels Europe IEEE 802 1...

Страница 74: ...at 54Mbps OFDM IEEE 802 11g 15 dBm typical at 11Mbps CCK QPSK BPSK RX Sensitivity 54 Mbps OFDM 70 dBm 11 Mbps CCK 85 dBm SOFTWARE SPECIFICATIONS Device Drivers Microsoft Windows 98 Second Edition Win...

Страница 75: ...vary depending on your Windows version You may need to install additional software in Windows 98 Second Edition and Windows ME Configuring the Computer on Which You Install the AG 320 1 Refer to Secti...

Страница 76: ...ck the Sharing tab and select Enable Internet Connection Sharing for this connection Click OK Figure 51 Windows 2000 Network Properties If there is more than one network adapter on the computer select...

Страница 77: ...work Properties Select Network Adapter 5 A notice screen displays Click Yes Figure 53 Windows 2000 Local Network Configuring the Wireless Station Computer Refer to Appendix E on page 99 for more infor...

Страница 78: ...ZyXEL AG 320 User s Guide 78 Appendix B...

Страница 79: ...computer and download the support patch for WPA from the Microsoft web site Windows XP SP2 screen shots are shown unless otherwise specified Click the help icon in most screens move the cursor to the...

Страница 80: ...Network Connection Status 4 The Wireless Network Connection Properties screen displays Click the Wireless Networks tab Make sure the Use Windows to configure my wireless network settings check box is...

Страница 81: ...ee the following screen refer to article 871122 on the Microsoft web site for information on starting WZC Figure 58 Windows XP SP2 WZC Not Available Connecting to a Wireless Network 1 Double click the...

Страница 82: ...re 60 Windows XP SP2 Wireless Network Connection Status Windows XP SP1 In the Wireless Network Connection Status screen click Properties and the Wireless Networks tab to open the Wireless Network Conn...

Страница 83: ...nnection Status 3 Windows XP SP2 Click Refresh network list to reload and search for available wireless devices within transmission range Select a wireless network in the list and click Connect to joi...

Страница 84: ...ork the Wireless Network Connection screen displays You must set the related fields in the Wireless Network Connection screen to the same security settings as the associated AP and click Connect Refer...

Страница 85: ...wireless network list or the connection icon in the Preferred networks or Available networks list The following table describes the connection icons Security Settings When you configure the AG 320 to...

Страница 86: ...thod Share Open WPA or WPA PSK used by the selected network Data Encryption This field automatically shows the encryption type TKIP WEP or Disable used by the selected network Network Key Enter the pr...

Страница 87: ...changes Cancel Click Cancel to leave this screen without saving any changes you may have made Table 30 Windows XP Wireless network properties Association continued LABEL DESCRIPTION Table 31 Windows...

Страница 88: ...Select this check box to have the computer send its information to the network for authentication when a user is not logged on Authenticate as guest when user or computer information is unavailable S...

Страница 89: ...list below Note You must first have a wired connection to a network and obtain the certificate s from a certificate authority CA Consult your network administrator for more information Do not prompt...

Страница 90: ...e of the authentication server Connect to these servers Select the check box and specify a domain in the field below to have your computer connect to a server which resides only within this domain Tru...

Страница 91: ...re 71 Windows XP SP1 Wireless Networks Preferred Networks 2 Whenever the AG 320 tries to connect to a new network the new network is added in the Preferred networks table automatically Select a networ...

Страница 92: ...ZyXEL AG 320 User s Guide 92 Appendix C...

Страница 93: ...certificate authority CA A certificate also called digital IDs can be used to authenticate users and a CA issues certificates and guarantees the identity of each certificate owner EAP MD5 Message Dige...

Страница 94: ...ient identity is protected For client authentication EAP TTLS supports EAP methods and legacy authentication methods such as PAP CHAP MS CHAP and MS CHAP v2 PEAP Protected EAP Like EAP TTLS server sid...

Страница 95: ...red into each access point wireless gateway and wireless client As long as the passwords match a wireless client will be granted access to a WLAN If the AP or the wireless clients do not support WPA2...

Страница 96: ...is more difficult to decrypt data on a Wi Fi network than WEP and difficult for an intruder to break into the network The encryption mechanisms used for WPA 2 and WPA 2 PSK are the same The only diff...

Страница 97: ...72 WPA PSK Authentication WPA 2 with RADIUS Application Example You need the IP address of the RADIUS server its port number default is 1812 and the RADIUS shared secret A WPA 2 application example wi...

Страница 98: ...onfigure these security features Table 35 Wireless Security Relational Matrix AUTHENTICATION METHOD KEY MANAGEMENT PROTOCOL ENCRYPTION METHOD ENTER MANUAL KEY IEEE 802 1X Open None No Disable Enable w...

Страница 99: ...omponents you need to install and use TCP IP on your computer Windows 3 1 requires the purchase of a third party TCP IP application package TCP IP should already be installed on computers using Window...

Страница 100: ...In the Network window click Add 2 Select Adapter and then click Add 3 Select the manufacturer and model of your network adapter and then click OK If you need TCP IP 1 In the Network window click Add...

Страница 101: ...Click the IP Address tab If your IP address is dynamic select Obtain an IP address automatically If you have a static IP address select Specify an IP address and type your information into the IP Add...

Страница 102: ...ve and close the TCP IP Properties window 6 Click OK to close the Network window Insert the Windows CD if prompted 7 Restart your computer when prompted Verifying Settings 1 Click Start and then Run 2...

Страница 103: ...E 103 Figure 77 Windows XP Start Menu 2 For Windows XP click Network Connections For Windows 2000 NT click Network and Dial up Connections Figure 78 Windows XP Control Panel 3 Right click Local Area C...

Страница 104: ...ies 4 Select Internet Protocol TCP IP under the General tab in Win XP and click Properties Figure 80 Windows XP Local Area Connection Properties 5 The Internet Protocol TCP IP Properties window opens...

Страница 105: ...click Add In TCP IP Address type an IP address in IP address and a subnet mask in Subnet mask and then click Add Repeat the above two steps for each IP address you want to add Configure additional de...

Страница 106: ...gure 82 Windows XP Internet Protocol TCP IP Properties 8 Click OK to close the Internet Protocol TCP IP Properties window 9 Click OK to close the Local Area Connection Properties window 10Restart your...

Страница 107: ...Macintosh OS 8 9 Apple Menu 2 Select Ethernet built in from the Connect via list Figure 84 Macintosh OS 8 9 TCP IP 3 For dynamically assigned settings select Using DHCP Server from the Configure list...

Страница 108: ...ave changes to your configuration 7 Restart your computer if prompted Verifying Settings Check your TCP IP properties in the TCP IP Control Panel window Macintosh OS X 1 Click the Apple menu and click...

Страница 109: ...figure box select Manually Type your IP address in the IP Address box Type your subnet mask in the Subnet mask box Type the IP address of your gateway in the Router address box if you have one 5 Click...

Страница 110: ...ZyXEL AG 320 User s Guide 110 Appendix E...

Страница 111: ...pe 39 authentication method auto 40 open system 39 shared key 40 auto authentication 40 C CA 94 CardBus 73 CCK 73 Certificate Authority 94 certifications notices 5 viewing 5 channel 47 48 57 73 commun...

Страница 112: ...rity Check MIC 40 95 modes 26 modulation 73 N network type 24 46 73 wired 24 wireless 37 O OFDM 73 One Touch Intelligent Security Technology 41 open system authentication 39 operating frequency 73 ope...

Страница 113: ...grity Protocol TKIP 40 95 trademarks 3 transmission rate 46 56 64 73 transmit key 50 trend chart 47 troubleshooting 71 AP connection 71 link status 72 network communication 72 starting the ZyXEL utili...

Страница 114: ...connection 81 not available 81 preferred network 90 security setting 85 system tray icon 82 WZC Wireless Zero Configuration 27 Z zero configuration 27 ZyXEL limited warranty note 6 ZyXEL utility 23 27...

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