ZyXEL Communications G-560 User Manual
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ZyXEL Communications G-560 User Manual

ZyXEL Communications G-560 User Manual

802.11g wireless access point
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ZyXEL G-560
802.11g Wireless Access Point
User's Guide
Version 2.0
January 2005

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Summary of Contents for ZyXEL Communications G-560

  • Page 1 ZyXEL G-560 802.11g Wireless Access Point User's Guide Version 2.0 January 2005...
  • Page 2 Trademarks ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc. Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.
  • Page 3 ZyXEL G-560 User’s Guide Federal Communications Commission (FCC) Interference Statement This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: • This device may not cause harmful interference. • This device must accept any interference received, including interference that may cause undesired operations.

  • Page 4: Zyxel Limited Warranty

    ZyXEL G-560 User’s Guide ZyXEL Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon...

  • Page 5: Customer Support

    ZyXEL G-560 User’s Guide Customer Support Please have the following information ready when you contact customer support. • Product model and serial number. • Warranty Information. • Date that you received your device. • Brief description of the problem and the steps you took to solve it.
  • Page 6 ZyXEL G-560 User’s Guide METHOD SUPPORT E-MAIL TELEPHONE WEB SITE REGULAR MAIL SALES E-MAIL FTP SITE LOCATION SWEDEN support@zyxel.se +46 31 744 7700 www.zyxel.se ZyXEL Communications A/S Sjöporten 4, 41764 Göteborg sales@zyxel.se +46 31 744 7701 Sweden FINLAND support@zyxel.fi +358-9-4780-8411 www.zyxel.fi...

  • Page 7: Table Of Contents

    Customer Support............................v Table of Contents............................vii List of Figures..............................x List of Tables..............................xiii Preface................................xiv OVERVIEW ..............................I Chapter 1 Getting to Know Your G-560.....................1-1 Introducing the G-560 Wireless Access Point................1-1 G-560 Features ...........................1-1 The LED Display ........................1-3 Applications for the G-560......................1-4 1.4.1 Internet Access Application ....................1-4...
  • Page 8 ZyXEL G-560 User’s Guide 5.2.2 IP Address and Subnet Mask .....................5-2 Configuring System Settings .....................5-2 Time Settings ..........................5-4 Chapter 6 Wireless Screens.........................6-1 Wireless LAN Overview......................6-1 6.1.1 IBSS...........................6-1 6.1.2 BSS ............................6-1 6.1.3 ESS ............................6-2 Wireless LAN Basics.........................6-3 6.2.1 Channel ..........................6-3 6.2.2 SSID...........................6-3...
  • Page 9 Back to Factory Defaults....................7-6 F/W Upload Screen ........................7-7 Language Screen ........................7-10 APPENDICES .............................. III Appendix A Troubleshooting........................A-1 Problems Starting Up the G-560 ......................A-1 Problems with the Ethernet Interface ....................A-1 Problems with the Password.........................A-2 Problems with Telnet ...........................A-2 Problems with the WLAN Interface.....................A-3 Testing the Connection to the G-560....................A-3...

  • Page 10: List Of Figures

    Figure 6-2 Basic Service set ...........................6-2 Figure 6-3 Extended Service Set........................6-3 Figure 6-4 RTS/CTS ............................6-4 Figure 6-5 Wireless Settings ...........................6-6 Figure 6-6 G-560 Wireless Security Levels....................6-9 Figure 6-7 WEP Authentication Steps ......................6-10 Figure 6-8 EAP Authentication........................6-12 Figure 6-9 WPA-PSK Authentication ......................6-14 Figure 6-10 WPA with RADIUS Application Example ................6-15...
  • Page 11 ZyXEL G-560 User’s Guide Figure 6-16 MAC Address Filter ......................... 6-24 Figure 6-17 OTIST............................6-26 Figure 7-1 Password............................7-1 Figure 7-2 Logs.............................. 7-2 Figure 7-3 Configuration File ........................7-4 Figure 7-4 Configuration Upload Successful....................7-5 Figure 7-5 Network Temporarily Disconnected..................... 7-6 Figure 7-6 Configuration Upload Error ......................

  • Page 13: List Of Tables

    ZyXEL G-560 User’s Guide List of Tables Table 1 Front Panel LED Description ......................1-3 Table 2-1 Factory Defaults..........................2-5 Table 4-1 Status.............................. 4-2 Table 4-2 Status: View Statistics ........................4-3 Table 4-3 Status: View Association List......................4-4 Table 5-1 Private IP Address Ranges ......................5-1 Table 5-2 System Settings..........................

  • Page 14: Preface

    An access point (AP) acts as a bridge between the wireless and wired networks, extending your existing wired network without any additional wiring. This User’s Guide is designed to guide you through the configuration of your ZyXEL G-560 using the web configurator.
  • Page 15 For brevity’s sake, we will use “e.g.,” as a shorthand for “for instance”, and “i.e.,” for “that is” or “in other words” throughout this manual. • The ZyXEL G-560 802.11g Wireless Access Point may be referred to simply as the G-560 in the user’s guide. User Guide Feedback Help us help you.

  • Page 17: Overview

    Overview OVERVIEW This part introduces the main features and applications of G-560 and shows how to access the web configurator and use the Wizard to set up the G-560.

  • Page 19: Chapter 1 Getting To Know Your G-560

    The LAN interface automatically adjusts to either a crossover or straight-through Ethernet cable. Reset Button The G-560 reset button is built into the rear panel. Use this button to restore the factory default password. 802.11g Wireless LAN Standard The ZyXEL wireless products containing the letter “G” in the model name, such as G-560 and G-162, comply with the IEEE 802.11g wireless standard.

  • Page 20: Wireless Lan Mac Address Filtering

    WPA and WEP are user authentication and improved data encryption. SSL Passthrough The G-560 allows SSL connections to go through the G-560. SSL (Secure Sockets Layer) uses a public key to encrypt data that's transmitted over an SSL connection. Both Netscape Navigator and Internet Explorer support SSL, and many Web sites use the protocol to obtain confidential user information, such as credit card numbers.

  • Page 21: The Led Display

    The OTIST feature is not activated or activated but the wireless settings are changed again. WLAN Green Blinking The G-560 is sending or receiving data through the wireless LAN. The G-560 is ready, but is not sending/receiving data. Getting to Know Your G-560...

  • Page 22: Applications For The G-560

    Figure 1-2 Internet Access Application 1.4.2 Corporation Network Application In situations where users need to access corporate network resources and the Internet, the G-560 is an ideal solution for wireless stations to connect to the corporate network without expensive network cabling.

  • Page 23: Figure 1-3 Corporation Network Application

    ZyXEL G-560 User’s Guide Figure 1-3 Corporation Network Application Getting to Know Your G-560...

  • Page 25: Chapter 2 Management Computer Setup

    You must prepare your computer/computer network to connect to the G-560 if you are using a wired connection. Your computer’s IP address and subnet mask must be on the same subnet as the G-560. This can be done by setting up your computer’s IP address.

  • Page 26: Setting Up Your Computer's Ip Address

    ZyXEL G-560 User’s Guide 2.2.1 Setting Up Your Computer’s IP Address Skip this section if your computer’s IP address is already between 192.168.1.3 and 192.168.1.254 with subnet mask 255.255.255.0. Your computer must have a network card and TCP/IP installed. TCP/IP should already be installed on computers using Windows NT/2000/XP, Macintosh OS 7 and later operating systems.

  • Page 27: Figure 2-4 Local Area Connection Properties

    ZyXEL G-560 User’s Guide 4. Select Internet Protocol (TCP/IP) and 5. Select Use the following IP Address and fill then click Properties. in an IP address (between 192.168.1.3 and 192.168.1.254). Type 255.255.255.0 as the Subnet mask. • Click Advanced. •...

  • Page 28: Figure 2-6 Advanced Tcp/Ip Settings

    ZyXEL G-560 User’s Guide No gateways configured. Figure 2-6 Advanced TCP/IP Settings 7. Click OK to close the Internet Protocol (TCP/IP) Properties window. 8. Click Close (OK in Windows 2000/NT) to close the Local Area Connection Properties window. 9. Close the Network Connections window (Network and Dial-up Connections in Windows 2000/NT).

  • Page 29: Wireless Connection

    Resetting the G-560 If you forget the G-560’s IP address or your password, to access the G-560, you will need to reload the factory-default using the RESET button. Resetting the G-560 replaces the current configuration file with the factory-default configuration file.

  • Page 30: Method Of Restoring Factory-Defaults

    You can erase the current configuration and restore factory defaults in two ways: 1. Use the RESET button on the G-560 to upload the default configuration file (hold this button in for about 10 seconds or release the button when the PWR LED starts blinking).

  • Page 31: Chapter 3 Introducing The Web Configurator

    Step 1. Make sure your G-560 hardware is properly connected (refer to the Quick Start Guide). Step 2. Prepare your computer/computer network to connect to the G-560 (refer to section 2.2.1 for instructions on how to do this).

  • Page 32: Figure 3-1 Welcome Screen

    ZyXEL G-560 User’s Guide Default password is 1234. Figure 3-1 Welcome Screen Step 6. You should see a screen asking you to change your password (highly recommended) as shown next. Type a new password (and retype it to confirm) and click Apply or click Ignore to allow access without password change.

  • Page 33: Configuring The G-560 Using The Wizard

    G-560 features using the web configurator. Configuring the G-560 Using the Wizard The wizard consists of a series of screens to help you configure your G-560 for wireless stations to access your wired LAN. Use the following buttons to navigate the Wizard: Back Click Back to return to the previous screen.

  • Page 34: Basic Settings

    IP address. If you select this by mistake, use the Reset button to restore the factory default IP address. 3. Select Use fixed IP address to give the G-560 a static IP address. The IP address you configure here is used for management of the G-560 (accessing the web configurator).

  • Page 35: Wireless Settings

    Use the second wizard screen to set up the wireless LAN. See the Wireless Screens chapter for background information. 1. The SSID is a unique name to identify the G-560 in a wireless network. Enter up to 32 printable characters. Spaces are allowed. If you change this field on the G-560, make sure all wireless stations use the same SSID in order to access the network.

  • Page 36: Security Settings

    Select Disable to have no wireless LAN security configured. If you do not enable any wireless security on your G-560, your network is accessible to any wireless networking device that is within range. With no wireless security a neighbor can access and see traffic in your network.

  • Page 37: Figure 3-7 Wizard 3: Wep

    ZyXEL G-560 User’s Guide Selecting ASCII or Hex WEP key input method and entering a manual key in the Key 1 field. • Use Passphrase to automatically generate keys or manually enter a key in the Key 1 field. Figure 3-7 Wizard 3: WEP WPA-PSK 1.

  • Page 38: Confirm Your Settings

    ZyXEL G-560 User’s Guide Figure 3-8 Wizard 3: WPA-PSK 3.2.4 Confirm Your Settings The following read-only screen shows the status of the current settings. Use the summary table to check whether what you have configured is correct. Click Finish to complete the wizard configuration and save your settings.

  • Page 39: Status And Settings

    System, Wireless and IP Part II: STATUS AND SETTINGS This part covers the information and web configurator screens of Status and Settings.

  • Page 41: Chapter 4 Status Screens

    This chapter describes the Status screens. System Status Click STATUS to display a snapshot of your G-560 settings. You can also view network statistics and a list of wireless stations currently associated with the G-560. Note that these labels are READ-ONLY and are meant to be used for diagnostic purposes.

  • Page 42: Table 4-1 Status

    This is the firmware version and the date the firmware was created. IP Settings IP Address This field displays whether the G-560 is set to obtain an IP address from a DHCP Assignment server or use a manually entered static IP address.

  • Page 43: Statistics

    This is the number of received packets on this port. Collisions This is the number of collisions on this port. System Up This is the total time the G-560 has been on. Time Poll Interval(s) Enter the time interval for refreshing statistics.

  • Page 44: Association List

    Click View Association List in the STATUS screen. View the wireless stations that are currently associated to the G-560 in the Association List screen. Click STATUS and then the View Association List button to display the screen as shown next.

  • Page 45: Chapter 5 System Screens

    Chapter 5 System Screens This chapter provides information on the System screens. Factory Ethernet Defaults The Ethernet parameters of the G-560 are preset in the factory with the following values: • IP address of 192.168.1.2 • Subnet mask of 255.255.255.0 (24 bits) •...

  • Page 46: Ip Address And Subnet Mask

    Once you have decided on the network number, pick an IP address that is easy to remember, for instance, 192.168.1.2, for your G-560, but make sure that no other device on your network is using that IP address. The subnet mask specifies the network number portion of an IP address. Your G-560 will compute the subnet mask automatically based on the IP address that you entered.

  • Page 47: Figure 5-1 System Settings

    You must know the IP address assigned to the G-560 (by the router) to access the G-560 again. Use fixed IP Select this option to have your G-560 use a static IP address. When you select this address option, fill in the fields below.

  • Page 48: Time Settings

    Time Settings To change your G-560’s time and date, click SETTINGS, SYSTEM and then the Time Settings tab. The screen appears as shown. Use this screen to manually enter a time and date. Log times and dates are based on the time and date you configure here.

  • Page 49: Table 5-3 Time Settings

    Table 5-3 Time Settings LABEL DESCRIPTION Time (hh-mm-ss) This field displays the time of your G-560 in hour-minute-second format. Enter the new time in this field and then click Apply. Date (yyyy-mm-dd) This field displays the date of your G-560 in year-month-day format.

  • Page 51: Chapter 6 Wireless Screens

    ZyXEL G-560 User’s Guide Chapter 6 Wireless Screens This chapter discusses how to configure wireless settings and wireless security on your G-560. Wireless LAN Overview This section introduces the wireless LAN (WLAN) and some basic scenarios. 6.1.1 IBSS An Independent Basic Service Set (IBSS), also called an Ad-hoc network, is the simplest WLAN configuration.

  • Page 52: Ess

    ZyXEL G-560 User’s Guide Figure 6-2 Basic Service set 6.1.3 ESS An Extended Service Set (ESS) consists of a series of overlapping BSSs, each containing an access point, with each access point connected together by a wired network. This wired connection between APs is called a Distribution System (DS).

  • Page 53: Wireless Lan Basics

    ZyXEL G-560 User’s Guide Figure 6-3 Extended Service Set Wireless LAN Basics This section describes the wireless LAN network terms. 6.2.1 Channel A channel is the radio frequency(ies) used by IEEE 802.11b wireless devices. Channels available depend on your geographical area. You may have a choice of channels (for your region) so you should use a different channel than an adjacent AP (access point) to reduce interference.

  • Page 54: Rts/Cts

    ZyXEL G-560 User’s Guide 6.2.3 RTS/CTS A hidden node occurs when two stations are within range of the same access point, but are not within range of each other. The following figure illustrates a hidden node. Both stations (STA) are within range of the access point (AP) or wireless gateway, but out-of-range of each other, so they cannot “hear”...

  • Page 55: 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 G-560 will fragment the packet into smaller data frames. A large Fragmentation Threshold is recommended for networks not prone to interference while you should set a smaller threshold for busy networks or networks that are prone to interference.

  • Page 56: Figure 6-5 Wireless Settings

    The following table describes the labels in this screen. Table 6-1 Wireless Settings LABEL DESCRIPTION Basic Settings Operation Mode Select Access Point from the drop-down list. At the time of writing, the G-560 can only work as an access point. Wireless Screens...
  • Page 57 Select G+ to allow any ZyXEL WLAN devices that support this feature to associate with the G-560. This permits the G-560 to transmit at a higher speed than the pure G mode. Select B+ to allow any ZyXEL WLAN devices that support this feature to associate with the G-560.

  • Page 58: Wireless Security Overview

    Enter the number (from 1 to 32) of wireless stations allowed. to Associate: Output Power Set the output power of the G-560 in this field. If there is a high density of APs within an Management area, decrease the output power of the G-560 to reduce interference with other APs.

  • Page 59: Wep Overview

    WEP provides a mechanism for encrypting data using encryption keys. Both the AP and the wireless stations must use the same WEP key to encrypt and decrypt data. Your G-560 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.

  • Page 60: Figure 6-7 Wep Authentication Steps

    The same is true for shared key authentication. However, when it is set to auto authentication, the G-560 will accept either type of authentication request and the G-560 will fall back to use open authentication if the shared key does not match.

  • Page 61: Overview

    • Accounting Keeps track of the client’s network activity. RADIUS user is a simple package exchange in which your G-560 acts as a message relay between the wireless station and the network RADIUS server. Types of RADIUS Messages The following types of RADIUS messages are exchanged between the access point and the RADIUS server for user authentication: •...

  • Page 62: Eap Authentication Overview

    EAP-compatible RADIUS server, the access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server or the AP. The G-560 supports EAP-TLS, EAP-TTLS and PEAP with RADIUS. Refer to the Types of EAP Authentication appendix for descriptions on the common types.

  • Page 63: Dynamic Wep Key Exchange

    WPA applies IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless clients using an external RADIUS database. You can’t use the G-560’s Local User Database for WPA authentication purposes since the Local User Database uses EAP-MD5 which cannot be used to generate keys.

  • Page 64: Wpa-Psk Application Example

    ZyXEL G-560 User’s Guide The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped.

  • Page 65: Wpa With Radius Application Example

    ZyXEL G-560 User’s Guide 6.11 WPA 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 application example with an external RADIUS server looks as follows. “A” is the RADIUS server.

  • Page 66: Wireless Client Wpa Supplicants

    Security screen. This screen varies according to the encryption method you select. 6.14.1 Disable If you do not enable any wireless security on your G-560, your network is accessible to any wireless networking device that is within range.

  • Page 67: Wep

    WEP provides a mechanism for encrypting data using encryption keys. Both the AP and the wireless stations must use the same WEP key to encrypt and decrypt data. Your G-560 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.

  • Page 68: Figure 6-12 Security: Wep

    ZyXEL G-560 User’s Guide Figure 6-12 Security: WEP The following table describes the labels in this screen. Table 6-4 Security: WEP LABEL DESCRIPTION Encryption Select WEP if you want to configure WEP encryption parameters. Method Authentication Select Auto, Open or Shared from the drop-down list box.

  • Page 69: Wpa-Psk

    Key 4 Select a WEP key to use for data encryption. The WEP keys are used to encrypt data. Both the G-560 and the wireless stations must use the same WEP key for data transmission. If you chose 64-bit WEP, then enter any 5 ASCII characters or 10 hexadecimal characters ("0-9", "A-F").

  • Page 70: Wpa

    Type a pre-shared key from 8 to 63 ASCII characters (including spaces and symbols). This field is case-sensitive. Click Apply to save your changes back to the G-560. Apply Reset Click Reset to begin configuring this screen afresh.

  • Page 71: Figure 6-14 Security: Wpa

    Enter a password (up to 63 printable characters) as the key to be shared between the external authentication server and the G-560. The key must be the same on the external authentication server and your G-560. The key is not sent over the network.

  • Page 72: Figure 6-15 Security: 802.1X

    Table 6-6 Security: WPA LABEL DESCRIPTION Apply Click Apply to save your changes back to the G-560. Click Reset to begin configuring this screen afresh. Reset 6.14.5 802.1x The IEEE 802.1x standard outlines enhanced security methods for both the authentication of wireless stations and encryption key management.

  • Page 73: Mac Filter

    Click Reset to begin configuring this screen afresh. 6.15 MAC Filter The MAC filter screen allows you to configure the G-560 to give exclusive access to up to 32 devices (Allow Association) or exclude up to 32 devices from accessing the G-560 (Deny Association). Every Ethernet device has a unique MAC (Media Access Control) address.

  • Page 74: Figure 6-16 Mac Address Filter

    ZyXEL G-560 User’s Guide Figure 6-16 MAC Address Filter The following table describes the labels in this screen. 6-24 Wireless Screens...

  • Page 75: Otist (One-Touch Intelligent Security Technology)

    Select Allow the following MAC address to associate to permit access to the G-560, MAC addresses not listed will be denied access to the G-560. Select Deny the following MAC address to associate to block access to the G-560, MAC addresses not listed will be allowed to access the G-560.

  • Page 76: Figure 6-17 Otist

    OTIST. Start Click Start to encrypt the wireless security data using the setup key and have the G-560 set your wireless adapter to use the same wireless settings as the G-560. You must also activate and start OTIST on the wireless adapter at the same time.

  • Page 77: Chapter 7 Management Screens

    To change your G-560’s password (recommended), click SETTINGS and then MANAGEMENT. The screen appears as shown. This screen allows you to change the G-560’s password. If you forget your password (or the G-560 IP address), you will need to reset the G-560. See the section on resetting the G-560 for details.

  • Page 78: Logs

    Click Reset to reload the previous configuration for this screen. Logs The web configurator allows you to look at all of the G-560’s logs in one location. Click SETTINGS, MANAGEMENT and then the Logs tab to open the Logs screen.

  • Page 79: Configuration Screen

    TCP/IP Setup, etc. It arrives from ZyXEL with a .rom filename extension. Once you have customized the G-560's settings, they can be saved back to your computer under a filename of your choosing. Click SETTINGS, MANAGEMENT and then the Configuration File tab. Information related to factory defaults, backup configuration, and restoring configuration appears as shown next.

  • Page 80: Backup Configuration

    Figure 7-3 Configuration File 7.4.1 Backup Configuration Backup configuration allows you to back up (save) the G-560’s current configuration to a file on your computer. Once your G-560 is configured and functioning properly, it is highly recommended that you back...

  • Page 81: Restore Configuration

    After you see a “Restore Configuration Successful” screen, you must then wait one minute before logging into the G-560 again. Figure 7-4 Configuration Upload Successful The G-560 automatically restarts in this time causing a temporary network disconnect. In some operating systems, you may see the following icon on your desktop. Management Screens...

  • Page 82: Back To Factory Defaults

    If you uploaded the default configuration file you may need to change the IP address of your computer to be in the same subnet as that of the default G-560 IP address (192.168.1.2). If the upload was not successful, the following screen will appear. Click Return to go back to the Configuration File screen.

  • Page 83: F/W Upload Screen

    ZyXEL G-560 User’s Guide Figure 7-7 Reset Warning Message You can also press the RESET button on the rear panel to reset the factory defaults of your G-560. Refer to the section on resetting the G-560 for more information on the RESET button.

  • Page 84: Figure 7-8 Firmware Upload

    Click Upload to begin the upload process. This process may take up to two minutes. Do not turn off the G-560 while firmware upload is in progress! After you see the Firmware Upload in Process screen, wait two minutes before logging into the G-560 again.

  • Page 85: Figure 7-9 Firmware Upload In Process

    ZyXEL G-560 User’s Guide Figure 7-9 Firmware Upload In Process The G-560 automatically restarts in this time causing a temporary network disconnect. In some operating systems, you may see the following icon on your desktop. Figure 7-10 Network Temporarily Disconnected After two minutes, log in again and check your new firmware version in the System Status screen.

  • Page 86: Language Screen

    ZyXEL G-560 User’s Guide Figure 7-11 Firmware Upload Error Language Screen If you want to view the web configurator and corresponding web help in another language, click SETTINGS, MANAGEMENT and then Language. Click the language you need. Figure 7-12 Language...

  • Page 87: Appendices

    Appendices Part III: APPENDICES This part provides troubleshooting and background information about setting up your computer’s IP address, wireless LAN, 802.1x and IP subnetting. It also provides information on the command interpreter interface and logs.

  • Page 89: Appendix A Troubleshooting

    If the problem persists, you may have a hardware problem. In this case, you should adaptor. contact your local vendor. The G-560 The supplied power to the G-560 is too low. Check that the G-560 is receiving reboots enough power. automatically Make sure the power source is working properly.

  • Page 90: Problems With The Password

    Use the RESET button on the rear panel of the G-560 to restore the factory default configuration file (hold this button in for about 10 seconds or release the button when the PWR LED starts blinking).

  • Page 91: Problems With The Wlan Interface

    Testing the Connection to the G-560 Click Start, (All) Programs, Accessories and then Command Prompt. In the Command Prompt window, type "ping” followed by a space and the IP address of the G-560 (192.168.1.2 is the default). Press ENTER. The following screen displays.

  • Page 93: Appendix B Setting Up Your Computer's Ip Address

    "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 G-560's LAN port. Windows 95/98/Me Click Start, Settings, Control Panel and double-click the Network icon to open the Network window.
  • Page 94 ZyXEL G-560 User’s Guide If you need the adapter: In the Network window, click Add. Select Adapter and then click Add. Select the manufacturer and model of your network adapter and then click OK. If you need TCP/IP: In the Network window, click Add.
  • Page 95 ZyXEL G-560 User’s Guide 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 Address and Subnet Mask fields.
  • Page 96 Click OK to save and close the TCP/IP Properties window. Click OK to close the Network window. Insert the Windows CD if prompted. Turn on your G-560 and restart your computer when prompted. Verifying Your Computer’s IP Address Click Start and then Run.
  • Page 97 ZyXEL G-560 User’s Guide Click start (Start in Windows 2000/NT), Settings, Control Panel. In the Control Panel, double-click Network Right-click Local Area Connection and then Connections (Network and Dial-up click Properties. Connections in Windows 2000/NT). Setting Up Your Computer’s IP Address...
  • Page 98 ZyXEL G-560 User’s Guide Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and click Properties. 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.
  • Page 99 ZyXEL G-560 User’s Guide -If you do not know your gateway's IP address, remove any previously installed gateways in the IP Settings tab and click OK. Do one or more of the following if you want to configure additional IP addresses: -In the IP Settings tab, in IP addresses, click Add.
  • Page 100 Click Close (OK in Windows 2000/NT) to close the Local Area Connection Properties window. Close the Network Connections window (Network and Dial-up Connections in Windows 2000/NT). Turn on your G-560 and restart your computer (if prompted). Verifying Your Computer’s IP Address Click Start, All Programs, Accessories and then Command Prompt.
  • Page 101 ZyXEL G-560 User’s Guide Click the Apple menu, Control Panel and double-click TCP/IP to open the TCP/IP Control Panel. Select Ethernet built-in from the Connect via list. For dynamically assigned settings, select Using DHCP Server from the Configure: list. Setting Up Your Computer’s IP Address...
  • Page 102 -Type your IP address in the IP Address box. -Type your subnet mask in the Subnet mask box. -Type the IP address of your G-560 in the Router address box. Close the TCP/IP Control Panel. Click Save if prompted, to save changes to your configuration.
  • Page 103 -Type your IP address in the IP Address box. -Type your subnet mask in the Subnet mask box. -Type the IP address of your G-560 in the Router address box. Click Apply Now and close the window. Turn on your G-560 and restart your computer (if prompted).
  • Page 105 ZyXEL G-560 User’s Guide Appendix C Wireless LAN and IEEE 802.11 A wireless LAN (WLAN) provides a flexible data communications system that you can use to access various services (navigating the Internet, email, printer services, etc.) without the use of a cabled connection.
  • Page 106 ZyXEL G-560 User’s Guide unlicensed ISM (Industrial, Scientific and Medical) band. The third method is infrared technology, using very high frequencies, just below visible light in the electromagnetic spectrum to carry data. Ad-hoc Wireless LAN Configuration The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of computers with wireless nodes or stations (STA), which is called a Basic Service Set (BSS).
  • Page 107 ZyXEL G-560 User’s Guide The Extended Service Set (ESS) shown in the next figure consists of a series of overlapping BSSs (each containing an Access Point) connected together by means of a Distribution System (DS). Although the DS could be any type of network, it is almost invariably an Ethernet LAN. Mobile nodes can roam between access points and seamless campus-wide coverage is possible.

  • Page 109: Appendix D Wireless Lan With Ieee 802.1X

    ZyXEL G-560 User’s Guide Appendix D Wireless LAN With IEEE 802.1x As wireless networks become popular for both portable computing and corporate networks, security is now a priority. Security Flaws with IEEE 802.11 Wireless networks based on the original IEEE 802.11 have a poor reputation for safety. The IEEE 802.11b wireless access standard, first published in 1999, was based on the MAC address.
  • Page 110 ZyXEL G-560 User’s Guide RADIUS Server Authentication Sequence The following figure depicts a typical wireless network with a remote RADIUS server for user authentication using EAPOL (EAP Over LAN). Client computer access authorized. Client computer access not authorized. Diagram D-1 Sequences for EAP MD5–Challenge Authentication...

  • Page 111: Appendix E Types Of Eap Authentication

    ZyXEL G-560 User’s Guide Appendix E Types of EAP Authentication This appendix discusses the five popular EAP authentication types: EAP-MD5, EAP-TLS, EAP-TTLS, PEAP and LEAP. The type of authentication you use depends on the RADIUS server. Consult your network administrator for more information.
  • Page 112 ZyXEL G-560 User’s Guide and EAP-GTC (EAP-Generic Token Card), for client authentication. EAP-GTC is implemented only by Cisco. LEAP LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE802.1x. For added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use dynamic keys for data encryption.
  • Page 113 ZyXEL G-560 User’s Guide Appendix F IP Subnetting IP Addressing Routers “route” based on the network number. The router that delivers the data packet to the correct destination host uses the host ID. IP Classes An IP address is made up of four octets (eight bits), written in dotted decimal notation, for example, 192.168.1.1.

  • Page 114: Subnet Masks

    ZyXEL G-560 User’s Guide A class “A” address (24 host bits) can have 2 –2 hosts (approximately 16 million hosts). Since the first octet of a class “A” IP address must contain a “0”, the first octet of a class “A” address can have a value of 0 to 127.
  • Page 115 ZyXEL G-560 User’s Guide sequence of ones beginning from the left most bit of the mask, followed by a continuous sequence of zeros, for a total number of 32 bits. Since the mask is always a continuous number of ones beginning from the left, followed by a continuous number of zeros for the remainder of the 32 bit mask, you can simply specify the number of ones instead of writing the value of each octet.
  • Page 116 ZyXEL G-560 User’s Guide Divide the network 192.168.1.0 into two separate subnets by converting one of the host ID bits of the IP address to a network number bit. The “borrowed” host ID bit can be either “0” or “1” thus giving two subnets;...
  • Page 117 ZyXEL G-560 User’s Guide to an actual host for the first subnet is 192.168.1.1 and the highest is 192.168.1.126. Similarly the host ID range for the second subnet is 192.168.1.129 to 192.168.1.254. Example: Four Subnets The above example illustrated using a 25-bit subnet mask to divide a class “C” address space into two subnets.
  • Page 118 ZyXEL G-560 User’s Guide Chart F-9 Subnet 3 NETWORK NUMBER LAST OCTET BIT VALUE Subnet Mask (Binary) 11111111.11111111.11111111. 11000000 Subnet Address: 192.168.1.128 Lowest Host ID: 192.168.1.129 Broadcast Address: 192.168.1.191 Highest Host ID: 192.168.1.190 Chart F-10 Subnet 4 NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192.168.1.
  • Page 119 ZyXEL G-560 User’s Guide The following table is a summary for class “C” subnet planning. Chart F-12 Class C Subnet Planning NO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET 255.255.255.128 (/25) 255.255.255.192 (/26) 255.255.255.224 (/27) 255.255.255.240 (/28) 255.255.255.248 (/29)

  • Page 120: Appendix F Ip Subnetting

    ZyXEL G-560 User’s Guide Chart F-13 Class B Subnet Planning NO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET 255.255.255.128 (/25) 255.255.255.192 1024 (/26) 255.255.255.224 2048 (/27) 255.255.255.240 4096 (/28) 255.255.255.248 8192 (/29) 255.255.255.252 16384 (/30) 255.255.255.254...
  • Page 121 ZyXEL G-560 User’s Guide Appendix G Index TLS..............E-1 TTLS ..............E-1 Encryption ............6-13 ESS .. See Extended Service Set. See Extended Service Address Assignment..........5-1 Ad-hoc Configuration..........C-2 ESS ID ..............6-3 Alternative Subnet Mask Notation ......F-3 Extended Service Set ........C-3, 6-2 Applications ............1-4...
  • Page 122 ZyXEL G-560 User’s Guide IP Addressing ............F-1 RF signals .............. C-1 IP Classes..............F-1 RTS Threshold ............6-4 LED Description............1-3 Security Parameters..........6-15 Service ..............iv Service Set Identity ........See SSID Setup Key.............. 6-26 SSID................ 6-3 MAC Filter ............6-23 Subnet Mask............

  • Page 123: Appendix G Index

    ZyXEL G-560 User’s Guide WPA-PSK ............6-13, 6-19 WPA-PSK Application..........6-14 ZyXEL Limited Warranty Note...............iv Index...

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