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ZyAIR G-220 User’s Guide 

2-4                                                             

 

Wireless Station Mode Configuration 

The following figure depicts a roaming example. When wireless station 

B

 moves to position 

X

, the ZyAIR 

in wireless station 

B

 automatically switches the channel to the one used by access point 

2

 in order to stay 

connected to the network. 

 

Figure 2-5 Roaming Example 

2.2 Wireless 

LAN 

Security 

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

More Setting… 

screen. If you do not enable any wireless 

security on your ZyAIR, the ZyAIR’s wireless communications are accessible to any wireless networking 
device that is in the coverage area. 

2.2.1  Data Encryption with WEP 

WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between the ZyAIR and 
the AP or other wireless stations to keep network communications private. Both the wireless stations and 
the access points must use the same WEP key for data encryption and decryption.  
Your ZyAIR allows you to configure up to four 64-bit, 128-bit or 256-bit WEP keys but only one key can 
be used at any one time. 

2.3 Fragmentation 

Threshold 

A 

Fragmentation Threshold

 is the maximum data fragment size (between 256 and 2432 bytes) that can be 

sent in the wireless network before the ZyAIR will fragment the packet into smaller data frames. 

Содержание ZyAIR G-220

Страница 1: ...ZyAIR G 220 802 11g Wireless USB Adapter User s Guide Version 1 01 May 2004 ...

Страница 2: ... ZyXEL Communications Corporation Published by ZyXEL 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 convey any license under its patent rights nor the patents rights of others ZyXEL further reserves the right to make changes in any products described her...

Страница 3: ... conditions NOTE Repair or replacement 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 fitness for a particular use or purpose ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of character to the purchaser To obtai...

Страница 4: ...ompliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment For ...

Страница 5: ...cations If this equipment does cause harmful interference to radio television 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 receiving antenna 2 Increase the separation between the equipment and the receiver 3 Connect the equipment into an outlet on a...

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Страница 7: ...CA sales zyxel com 1 714 632 0858 ftp us zyxel com ZyXEL Communications Inc 1130 N Miller St Anaheim CA 92806 2001 U S A support zyxel de 49 2405 6909 0 www zyxel de GERMANY sales zyxel de 49 2405 6909 99 ZyXEL Deutschland GmbH Adenauerstr 20 A2 D 52146 Wuerselen Germany 33 0 4 72 52 97 97 FRANCE info zyxel fr 33 0 4 72 52 19 20 www zyxel fr ZyXEL France 1 rue des Vergers Bat 1 C 69760 Limonest Fr...

Страница 8: ...LOCATION SALES E MAIL FAX2 FTP SITE REGULAR MAIL support zyxel se 46 31 744 7700 www zyxel se SWEDEN sales zyxel se 46 31 744 7701 ZyXEL Communications A S Sjöporten 4 41764 Göteborg Sweden FINLAND support zyxel fi 358 9 4780 8411 www zyxel fi ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finland ...

Страница 9: ...er 2 Wireless LAN Network 2 1 2 1 Overview 2 1 2 1 1 SSID 2 1 2 1 2 Channel 2 1 2 1 3 Transmission Rate Tx Rate 2 1 2 1 4 Wireless Network Application 2 1 2 1 5 Roaming 2 3 2 2 Wireless LAN Security 2 4 2 2 1 Data Encryption with WEP 2 4 2 3 Fragmentation Threshold 2 4 2 4 RTS CTS Threshold 2 5 2 5 Authentication Type 2 6 2 6 Preamble Type 2 6 Chapter 3 Wireless Station Mode Configuration 3 1 3 1 ...

Страница 10: ... 1 The Information Screen 5 1 5 2 Removing the ZyAIR Utility 5 1 5 3 Upgrading the ZyAIR Utility 5 2 Chapter 6 Troubleshooting 6 1 6 1 Problems Starting the ZyAIR Utility Program 6 1 6 2 Problem with the Link Status 6 1 6 3 Problems Communicating With Other Computers 6 2 Appendix A Setting up Your Computer s IP Address A Appendix B Access Point Mode Setup Example M Appendix C Index Q ...

Страница 11: ... 2 3 Infrastructure Network Example 2 3 Figure 2 4 ZyAIR as an Access Point Example 2 3 Figure 2 5 Roaming Example 2 4 Figure 2 6 RTS Threshold 2 5 Figure 3 1 Station Mode ZyAIR G 220 Utility 3 1 Figure 3 2 Station Mode Use Previous WEP Setting 3 3 Figure 3 3 Station Mode More Setting 3 4 Figure 3 4 Station Mode WEP Key Setting 3 6 Figure 3 5 Station Mode Advanced Setting 3 8 Figure 4 1 Access Poi...

Страница 12: ...ation Mode WEP Key Setting 3 6 Table 3 4 Station Mode Advanced Setting 3 8 Table 4 1 Access Point Mode ZyAIR G 220 Utility 4 2 Table 4 2 Access Point Mode Access Point Setting 4 4 Table 4 3 Access Point Mode MAC Filter 4 7 Table 5 1 Information 5 1 Table 6 1 Troubleshooting Starting ZyAIR Utility Program 6 1 Table 6 2 Troubleshooting Link Quality 6 1 Table 6 3 Troubleshooting Communication Problem...

Страница 13: ... referred to as the ZyAIR in this guide The ZyAIR Wireless LAN Utility may be referred to as the ZyAIR WLAN Utility or simply as the ZyAIR Utility in this guide Related Documentation Support Disk Refer to the included CD for support documents and device drivers Quick Installation Guide Our Quick Installation Guide is designed to help you get your ZyAIR up and running right away It contains a detai...

Страница 14: ...ZyAIR G 220 User s Guide xiv Getting Started Graphics Icons Key Wireless Access Point Computer Notebook computer Server Modem Wireless Signal Telephone Switch Router ...

Страница 15: ...security Proprietary SoftAP feature turns your ZyAIR into an access point AP Low CPU utilization allowing more computer system resources for other programs A built in antenna Driver support for Windows XP 2000 Me 98 SE 1 2 ZyAIR Hardware and Utility Installation Follow the instructions in the Quick Installation Guide to install the ZyAIR utility and make hardware connections 1 3 Disable Windows XP...

Страница 16: ...ows XP System Tray Icon Step 2 If the icon for the wireless network connection is not in the system tray click Start Control Panel and double click Network Connections Step 3 Double click on the icon for wireless network connection to display a status window as shown next Figure 1 2 Windows XP Wireless Network Connection Status Step 4 Click Properties and click the Wireless Networks tab Then skip ...

Страница 17: ...ZyAIR G 220 User s Guide Wireless LAN 1 3 Step 5 When a Wireless Network Connection window displays click Advanced Figure 1 3 Windows XP Connect to Wireless Network ...

Страница 18: ...s XP Wireless Network Connection Properties 1 4 Accessing the ZyAIR Utility After you install and start the ZyAIR Utility an icon for the ZyAIR Utility appears in the system tray When the ZyAIR Utility system tray icon displays the ZyAIR is installed properly Figure 1 5 ZyAIR Utility System Tray Icon The color of the ZyAIR Utility system tray icon indicates the status of the ZyAIR Refer to the fol...

Страница 19: ...cess point AP modes In wireless station mode your ZyAIR must connect to a peer wireless station or an AP to take part in your wireless network In access point mode your ZyAIR functions as an access point This allows you to set up your wireless network without using a dedicated AP device Up to 16 wireless stations can associate to the ZyAIR to form a wireless network Refer to Section 4 1 for more i...

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Страница 21: ...the ZyAIR automatically switches to a lower transmission data rate Transmission at lower data speeds is usually more reliable However when the communication quality improves again the ZyAIR gradually increases the transmission data rate again until it reaches the highest available transmission rate You can select any of the above options If you wish to balance speed versus reliability select 48 Mb...

Страница 22: ... to as an Independent Basic Service Set IBSS Figure 2 1 IBSS Example Figure 2 2 BSS Example A series of overlapping BSS and a network medium such as an Ethernet forms an Extended Service Set ESS or infrastructure network All communication is done through the AP which relays data packets to other wireless stations or devices connected to the wired network Wireless stations can then access resource ...

Страница 23: ...point mode Computer A shares Internet connection to the wireless LAN so wireless stations B and C can access the Internet 2 1 5 Roaming In an infrastructure network wireless stations are able to switch from one BSS to another as they move between the coverage areas During this period the wireless stations maintain uninterrupted connection to the network This is roaming As the wireless station move...

Страница 24: ... s wireless communications are accessible to any wireless networking device that is in the coverage area 2 2 1 Data Encryption with WEP WEP Wired Equivalent Privacy encryption scrambles all data packets transmitted between the ZyAIR and the AP or other wireless stations to keep network communications private Both the wireless stations and the access points must use the same WEP key for data encryp...

Страница 25: ...from each other Figure 2 6 RTS Threshold When station A sends data to the AP it might not know that the station B is already using the channel If these two stations send data at the same time collisions may occur when both sets of data arrive at the AP at the same time resulting in a loss of messages for both stations RTS CTS Threshold is designed to prevent collisions due to hidden nodes An RTS C...

Страница 26: ...his requires you to enable the WEP encryption and specify a WEP key on both the wireless station and the AP Auto authentication mode allows the ZyAIR to switch between the open and shared key authentication modes automatically Use the auto mode if you do not know the authentication mode of the other wireless stations 2 6 Preamble Type A preamble is used to synchronize the transmission timing in yo...

Страница 27: ...AIR in wireless station mode 3 1 Introduction To set your ZyAIR as a wireless station refer to Section 1 5 1 3 2 The ZyAIR Utility Screen When the ZyAIR utility starts the ZyAIR G 220 Utility screen displays showing the current configuration of your ZyAIR Figure 3 1 Station Mode ZyAIR G 220 Utility The following table describes the labels in this screen ...

Страница 28: ...s the radio channel the ZyAIR is currently using Type This field displays the network type Infrastructure or Ad Hoc of the ZyAIR SSID This field displays the name of the wireless device to which the ZyAIR is associated Tx Rate This field displays the current transmission rate of the ZyAIR in megabits per second Mbps WEP This field displays whether WEP data encryption is activated on or inactive of...

Страница 29: ... WEP field displays On for the selected wireless network the following screen displays Figure 3 2 Station Mode Use Previous WEP Setting Step 4 Click No to display the WEP Key Setting screen and refer to Section 3 4 to set up WEP keys Otherwise click Yes to use the previously configured WEP settings Step 5 To verify that you have successfully connected to the selected network check the network info...

Страница 30: ... More Setting LABEL DESCRIPTION General Connection Setting Channel Select the channel number from the drop down list box To associate to an ad hoc network you must use the same channel as the peer computer The number of channels varies depending on the setting in the Advanced Setting screen This field is not applicable when you select Infrastructure in the Network Type field ...

Страница 31: ... Section 3 4 for more information Authentication Mode Select an authentication method Choices are Auto Shared Key and Open System Refer to Section 2 5 for more information Apply Change Click Apply to save the changes back to the ZyAIR or click Change to start configuring the fields Encryption Setting WEP Key Setting Click WEP Encryption Key Setting to display the screen and configure WEP key setti...

Страница 32: ...EP Key Setting Screen Click the WEP Encryption Key Setting button in the More Setting screen to display the WEP Key Setting screen as shown next Figure 3 4 Station Mode WEP Key Setting The following table describes the labels in this screen Table 3 3 Station Mode WEP Key Setting LABEL DESCRIPTION WEP Key Setting The WEP keys are used to encrypt data before transmitting The values for the keys must...

Страница 33: ...e Key Length 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 case sensitive ranging from a z A Z and 0 9 for example MyKey12345678 for ASCII key type If you select 256 bit in the Key Length field Enter either 58 hexadecimal digits in the range of A F a f and 0 9 for example 001122334455667...

Страница 34: ...on the ZyAIR click the Advanced Setting button in the More Setting screen Figure 3 5 Station Mode Advanced Setting The following table describes the labels in this screen Table 3 4 Station Mode Advanced Setting LABEL DESCRIPTION User Interface Language Select a language from the Language drop down list box Country Roaming ...

Страница 35: ...wer Saving Mode Select this radio button to save power especially for notebook computers This forces the ZyAIR to go to sleep mode periodically Fast Power Saving Mode Select this radio button to have the ZyAIR switch between CAM and maximum power saving mode depending on the amount of traffic to transmit Fragmentation Threshold The threshold number of bytes for the fragmentation boundary for direc...

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Страница 37: ... the ZyAIR 4 1 1 Additional Setup Requirements To bridge your wired and wireless network using the ZyAIR the following requirements must be met 1 The ZyAIR must be installed on a computer connected to the wired network 2 Either configure network sharing refer to the appendix for an example or bridge the two interfaces wireless and wired on the computer 3 Set the wireless station s IP address to be...

Страница 38: ...o operate in wireless station mode Select Access Point from drop down list box to set the ZyAIR to operate in access point mode Refer to Section 1 5 for more information Network Adapter This field displays the model name of your ZyAIR Select from the drop down list menu if you have more than one wireless LAN adapter in your computer Connect Station List Station MAC Address This field displays the ...

Страница 39: ...EP data encryption is activated on or inactive off Tx Power This field displays the current transmission rate of the ZyAIR in megabits per second Mbps More Setting Click More setting to configure connection and wireless security settings Tx Frame This field displays the number of data frames transmitted Rx Frame This field displays the number of data frames received 4 3 The Access Point Setting Sc...

Страница 40: ...nding on your geographical region Basic Rate Select the rate s at which the ZyAIR can transmit data in the wireless LAN network Make sure the wireless stations in the same wireless network are set to use the rate s for data transmission SSID The SSID identifies the Service Set to which a wireless station is associated Wireless stations associating to the access point the ZyAIR must have the same S...

Страница 41: ...sumption Apply Click Apply to save the changes back to the ZyAIR or click Change to start configuring the fields WEP Select Disable to deactivate the WEP encryption Select Enable to activate the WEP encryption Setting Click Setting to display the screen and configure WEP key settings Authentication Mode Select an authentication method Choices are Shared Key and Open System Refer to Section 2 5 for...

Страница 42: ...descriptions 4 5 The MAC Address Filter Screen The MAC Address Filter screen allows you to configure the ZyAIR to give exclusive access to Accept devices or exclude devices from Reject connecting to the ZyAIR Every Ethernet device has a unique MAC Media Access Control address The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters for example 00 A0 C5 00 00 0...

Страница 43: ...RIPTION Filter Type Define the filter action for the list of MAC addresses in the MAC address filter table Select Disable to deactivate the MAC filter feature Select Reject to block access to the ZyAIR MAC addresses not listed will be allowed to access the router Select Accept to permit access to the ZyAIR MAC addresses not listed will be denied access to the router Filter MAC Address ...

Страница 44: ...ion to the ZyAIR Enter six pairs of hexadecimal digits in the range of A F a f and 0 9 for example 00A0C5000002 Once you click Apply to save the values this field displays the MAC address with spaces separating the six pairs of hexadecimal digits for example 00 A0 C5 00 00 02 If you enter an invalid MAC address it will not be displayed Apply Click Apply to save the changes back to the ZyAIR ...

Страница 45: ...ormation The following table describes the read only fields in this screen Table 5 1 Information LABEL DESCRIPTION Driver Version This field displays the version number of the ZyAIR driver Utility Version This field displays the version number of the ZyAIR Utility MAC Address This field displays the MAC address of the ZyAIR OK Click OK to save all changes and close the ZyAIR Utility 5 2 Unistallat...

Страница 46: ...on To perform the upgrade follow the steps below Step 1 Download the latest version of the utility from the ZyXEL web site and save the file on your computer Step 2 Follow the steps in Section 5 2 to remove the current ZyAIR Utility from your computer Step 3 Restart your computer when prompted Step 4 After restarting refer to the procedure in the Quick Installation Guide to install the new utility...

Страница 47: ...AIR in another computer Cannot start the ZyAIR Wireless LAN Utility If the error persists you may have a hardware problem In this case you should contact your local vendor The ZyAIR Utility icon does not display When the ZyAIR Wireless LAN Utility icon does not display you are using the Windows XP wireless configuration tool at the same time Refer to the Section 1 3 to disable the Windows XP wirel...

Страница 48: ...puter and the AP share the same security option and key Verify the settings in the Security screen B Ad Hoc IBSS Verify that the peer computer s is turned on Make sure the ZyAIR computer and the peer computer s are using the same SS ID and channel Make sure that the computer and the peer computer s share the same security option and key Change the wireless clients to use another radio channel if i...

Страница 49: ...mputers using Windows NT 2000 XP Macintosh OS 7 and later operating systems After the appropriate TCP IP components are installed configure the TCP IP settings in order to communicate with your network If you manually assign IP information instead of using dynamic assignment make sure that your computers have IP addresses that place them in the same subnet as the ZyAIR Windows 95 98 Me Click Start...

Страница 50: ...rom the list of manufacturers d Select TCP IP from the list of network protocols and then click OK If you need Client for Microsoft Networks a Click Add b Select Client and then click Add c Select Microsoft from the list of manufacturers d Select Client for Microsoft Networks from the list of network clients and then click OK e Restart your computer so the changes you made take effect In the Netwo...

Страница 51: ...ally If you have a static IP address select Specify an IP address and type your information into the IP Address and Subnet Mask fields 2 Click the DNS Configuration tab If you do not know your DNS information select Disable DNS If you know your DNS information select Enable DNS and type the information in the fields below you may not need to fill them all in ...

Страница 52: ... Add 4 Click OK to save and close the TCP IP Properties window 5 Click OK to close the Network window Insert the Windows CD if prompted 6 Restart your computer when prompted Verifying Your Computer s IP Address 1 Click Start and then Run 2 In the Run window type winipcfg and then click OK to open the IP Configuration window 3 Select your network adapter You should see your computer s IP address su...

Страница 53: ...s E 1 For Windows XP click start Control Panel In Windows 2000 NT click Start Settings Control Panel 2 For Windows XP click Network Connections For Windows 2000 NT click Network and Dial up Connections 3 Right click Local Area Connection and then click Properties ...

Страница 54: ...XP and click Properties 5 The Internet Protocol TCP IP Properties window opens the General tab in Windows XP If you have a dynamic IP address click Obtain an IP address automatically If you have a static IP address click Use the following IP Address and fill in the IP address Subnet mask and Default gateway fields Click Advanced ...

Страница 55: ...ress 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 default gateways in the IP Settings tab by clicking Add in Default gateways In TCP IP Gateway Address type the IP address of the default gateway in Gateway To manually configure a default metric the number of transmission hops clear the Automati...

Страница 56: ...ate DNS server fields If you have previously configured DNS servers click Advanced and then the DNS tab to order them 8 Click OK to close the Internet Protocol TCP IP Properties window 9 Click OK to close the Local Area Connection Properties window 10 Restart your computer if prompted Verifying Your Computer s IP Address 1 Click Start All Programs Accessories and then Command Prompt 2 In the Comma...

Страница 57: ...mputer s IP Address I 1 Click the Apple menu Control Panel and double click TCP IP to open the TCP IP Control Panel 2 Select Ethernet from the Connect via list 3 For dynamically assigned settings select Using DHCP Server from the Configure list ...

Страница 58: ...ter address box 5 Close the TCP IP Control Panel 6 Click Save if prompted to save changes to your configuration 7 Restart your computer if prompted Verifying Your Computer s IP Address Check your TCP IP properties in the TCP IP Control Panel window Macintosh OS X 1 Click the Apple menu and click System Preferences to open the System Preferences window 2 Click Network in the icon bar Select Automat...

Страница 59: ...ttings do the following From the Configure 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 ZyAIR in the Router address box 5 Click Apply Now and close the window 6 Restart your computer if prompted Verifying Your Computer s IP Address Check your TCP IP properties in the Network window ...

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Страница 61: ...irements Steps may vary depending on your Windows version You may need to install additional software in Windows 98 Me Configuring the Computer on Which You Install the ZyAIR Step 1 Refer to Section 1 5 1 to set the ZyAIR to operate in AP mode Step 2 Click Start Settings Network and Dial up Connections or click Start Settings Control Panel and double click Network and Dial up Connections Diagram 1...

Страница 62: ...am 2 Windows 2000 Network and Dial up Connections Step 4 A Properties screen displays Click the Sharing tab and select Enable Internet Connection Sharing for this connection Click OK Diagram 3 Windows 2000 Network Properties Step 5 A notice screen displays Click Yes ...

Страница 63: ... Access Point Mode Setup Example O Diagram 4 Windows 2000 Local Network Configuring the Wireless Station Computer Refer to the Setting Up Your Computer s IP Address appendix to set up the wireless station computer s IP address ...

Страница 64: ......

Страница 65: ...de 2 6 C Communication Problem Ad hoc IBSS 6 3 Infrastructure 6 2 Computer s IP Address A Configuration 3 3 4 3 Connecting to a Network 3 3 Copyright ii Disclaimer ii Trademarks ii CTS Clear to Send 2 6 Customer Support vii D Data encryption 2 4 E ESS 2 2 Extended Service Set See ESS F Federal Communications Commission FCC Interference Statement v Model Specific v Filter MAC address 4 7 Fragmentat...

Страница 66: ...ing 3 3 Syntax Conventions xiii T Transmission Speed 3 5 Transmission Speeds 2 1 Troubleshooting Communication problem with other computers 6 2 Troubleshooting 6 1 Checking Hardware Conflict 6 1 Communication problems 6 2 Problem with link status 6 1 Radio interference 6 2 Starting ZyAIR Utility 6 1 U Using the ZyAIR Utility 2 1 W Warranty iii Note iii WEP 2 4 WEP Data Encryption with 2 4 WEP Key ...

Страница 67: ...ZyAIR G 220 User s Guide Index S Access point 4 1 Station 3 1 Switch between modes 1 5 ZyAIR Utility Before you upgrade 5 2 Link Info 3 2 Removing 5 2 Upgrading 5 2 ZyAIR Utility Maintenance 5 1 ...

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