ZyXEL Communications G-570S User Manual
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ZyXEL Communications G-570S User Manual

802.11g wireless access point
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G-570S
802.11g Wireless Access Point
User's Guide
Version 1.00
12/2006
Edition 2
www.zyxel.com

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Summary of Contents for ZyXEL Communications G-570S

  • Page 1 G-570S 802.11g Wireless Access Point User’s Guide Version 1.00 12/2006 Edition 2 www.zyxel.com...

  • Page 3: About This User's Guide

    About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to configure the ZyXEL Device using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology.

  • Page 4: Document Conventions

    Syntax Conventions • The G-570S may be referred to as the “ZyXEL Device”, the “device”, the “system” or the “product” in this User’s Guide. • Product labels, screen names, field labels and field choices are all in bold font.
  • Page 5 Document Conventions Icons Used in Figures Figures in this User’s Guide may use the following generic icons. The ZyXEL Device icon is not an exact representation of your device. ZyXEL Device Computer Notebook computer Server DSLAM Firewall Telephone Switch Router...

  • Page 6: Safety Warnings

    Only use the included antenna(s). • If you wall mount your device, make sure that no electrical lines, gas or water pipes will be damaged. This product is recyclable. Dispose of it properly. ZyXEL G-570S User’s Guide...
  • Page 7 Safety Warnings ZyXEL G-570S User’s Guide...
  • Page 8 Safety Warnings ZyXEL G-570S User’s Guide...

  • Page 9: Table Of Contents

    Contents Overview Contents Overview Introduction and Wizards ...................... 21 Introducing the ZyXEL Device ....................23 ..............................30 Introducing the Web Configurator ....................31 Wizards ............................35 Advanced ..........................43 Navigating the Advanced Screens .................... 45 Status Screens .......................... 47 System Screen .......................... 51 Wireless Screens ........................
  • Page 10 Contents Overview ZyXEL G-570S User’s Guide...

  • Page 11: Table Of Contents

    1.2.4 Bridge / Repeater ....................... 25 1.2.5 Access Point and Repeater ..................26 1.3 Ways to Manage the ZyXEL Device ..................26 1.4 Good Habits for Managing the ZyXEL Device ..............27 1.5 LEDs ............................ 27 1.6 Management Computer Setup .................... 28 1.6.1 Wired Connection .......................
  • Page 12 7.2.3 User Authentication ....................56 7.2.4 Encryption ........................57 7.2.5 One-Touch Intelligent Security Technology (OTIST) ..........58 7.3 Wireless Performance Overview ..................58 7.3.1 Quality of Service (QoS) .................... 58 7.4 Additional Wireless Terms ....................58 ZyXEL G-570S User’s Guide...
  • Page 13 8.5 F/W Upload Screen ......................93 Chapter 9 Troubleshooting........................95 9.1 Power, Hardware Connections, and LEDs ................95 9.2 ZyXEL Device Access and Login ..................96 9.3 Internet Access ........................98 Part IV: Appendices and Index ............. 99 ZyXEL G-570S User’s Guide...
  • Page 14 Appendix B Setting up Your Computer’s IP Address............107 Appendix C Pop-up Windows, JavaScripts and Java Permissions ........123 Appendix D Wireless LANs ....................129 Appendix E Customer Support..................... 143 Appendix F Legal Information ....................147 Index............................151 ZyXEL G-570S User’s Guide...

  • Page 15: List Of Figures

    Figure 33 Wireless Settings: Bridge ....................... 67 Figure 34 Wireless Settings: AP+Repeater .................... 70 Figure 35 Wireless Security: Disable ...................... 73 Figure 36 Wireless Security: WEP ......................74 Figure 37 Wireless Security: WPA(2)-PSK ..................... 75 Figure 38 Wireless Security: WPA(2) ..................... 76 ZyXEL G-570S User’s Guide...
  • Page 16 Figure 41 OTIST ............................. 82 Figure 42 Example Wireless Client OTIST Screen ................82 Figure 43 ZyXEL Device in Wireless Client Mode: OTIST Screen ............83 Figure 44 Security Key ........................... 83 Figure 45 OTIST in Progress (AP) ......................84 Figure 46 OTIST in Progress (Client) .....................
  • Page 17 Figure 91 Peer-to-Peer Communication in an Ad-hoc Network ............129 Figure 92 Basic Service Set ......................... 130 Figure 93 Infrastructure WLAN ......................131 Figure 94 RTS/CTS ..........................132 Figure 95 WPA(2) with RADIUS Application Example ................. 139 Figure 96 WPA(2)-PSK Authentication ....................140 ZyXEL G-570S User’s Guide...
  • Page 18 List of Figures ZyXEL G-570S User’s Guide...

  • Page 19: List Of Tables

    Table 34 Power Adaptor Specifications ....................105 Table 35 IEEE 802.11g ........................133 Table 36 Wireless Security Levels ....................... 134 Table 37 Comparison of EAP Authentication Types ................137 Table 38 Wireless Security Relational Matrix ..................140 ZyXEL G-570S User’s Guide...
  • Page 20 List of Tables ZyXEL G-570S User’s Guide...

  • Page 21: Introduction And Wizards

    Introduction and Wizards Introducing the ZyXEL Device (23) Introducing the Web Configurator (31) Wizards (35)

  • Page 23: Introducing The Zyxel Device

    It can work as a bridge and repeater to extend your wireless network. You can also use it as a wireless client to access a wired network through another AP. The ZyXEL Device uses IEEE 802.1x, WEP data encryption, WPA (Wi-Fi Protected Access), WPA2 and MAC address filtering to give mobile users highly secured wireless connectivity.

  • Page 24: Corporate Network Access Application

    Figure 2 Corporate Network Application 1.2.3 Wireless Client Application The ZyXEL Device can function as a wireless client to connect to a network via an Access Point (AP). The AP provides access to the wired network and the Internet. ZyXEL G-570S User’s Guide...

  • Page 25: Bridge / Repeater

    The ZyXEL Device can act as a wireless network bridge and establish wireless links with other APs. The ZyXEL Devices in the following example are using bridge mode with a star configuration. A, B, C and D are connected to independent wired networks and have bridge connections at the same time (B, C and D can communicate with A).

  • Page 26: Access Point And Repeater

    Figure 5 Bridge Repeater Application 1.2.5 Access Point and Repeater Set the ZyXEL Device to AP+Repeater mode to have it simultaneously provide access for wireless clients and use the repeater function. This allows you to extend the coverage of your wireless network without installing Ethernet cable to connect the ZyXEL Device.

  • Page 27: Good Habits For Managing The Zyxel Device

    Chapter 1 Introducing the ZyXEL Device 1.4 Good Habits for Managing the ZyXEL Device Do the following things regularly to make the ZyXEL Device more secure and to manage the ZyXEL Device more effectively. • Change the password. Use a password that’s not easy to guess and that consists of different types of characters, such as numbers and letters.

  • Page 28: Management Computer Setup

    Your computer's IP address and subnet mask must be on the same subnet as the ZyXEL Device. This can be done by setting up your computer's IP address. See the appendix for details on how to set up your IP address.

  • Page 29: Restarting The Zyxel Device

    1.8 Resetting the ZyXEL Device If you forget the ZyXEL Device's IP address or your password, to access the ZyXEL Device, you will need to reload the factory-default using the RESET button. Resetting the ZyXEL Device replaces the current configuration file with the factory-default configuration file. This means that you will lose all configurations that you had previously.
  • Page 30 Chapter 1 ZyXEL G-570S User’s Guide...

  • Page 31: Introducing The Web Configurator

    2 Prepare your computer/computer network to connect to the ZyXEL Device (refer to the appendix on setting up your IP address). 3 Launch your web browser. 4 Type the IP address of the ZyXEL Device (192.168.1.2 is the default) in the URL bar. Press Enter. ZyXEL G-570S User’s Guide...

  • Page 32: Figure 10 Web Configurator Address

    7 The following screen displays. Select Go Wizard Setup and click Apply to use the wizard setup screens for initial configuration (see Chapter 3 on page 35). Select Go Advanced Setup and click Apply to go directly to the advanced screens (see Chapter 4 on page 45). ZyXEL G-570S User’s Guide...

  • Page 33: Figure 13 Select Wizard Or Advanced Setup Screen

    Chapter 2 Introducing the Web Configurator Figure 13 Select Wizard or Advanced Setup Screen ZyXEL G-570S User’s Guide...
  • Page 34 Chapter 2 Introducing the Web Configurator ZyXEL G-570S User’s Guide...

  • Page 35: Wizards

    This chapter shows you how to configure the ZyXEL Device’s basic features using the wizards. 3.1 Using the Wizards The wizards consist of a series of screens to help you configure your ZyXEL Device 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 36: Wizard: Wireless Settings

    Chapter 3 Wizards Figure 14 Wizard: Basic Settings Do not select this unless you have a router that can assign the ZyXEL Device an IP address. 3.1.2 Wizard: Wireless Settings Use this wizard screen to set up the wireless LAN. See the chapter on the wireless screens for background information.

  • Page 37: Wizard: Security Settings

    Select Disable to have no wireless LAN security configured. If you do not enable any wireless security on your device, 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. ZyXEL G-570S User’s Guide...

  • Page 38: Figure 16 Setup Wizard 3: Disable

    Generate. The device automatically generates WEP keys. One key displays in the Key 1 field. Go to Wireless > Security if you want to see the other WEP keys. • Enter a manual key in the Key 1 field. ZyXEL G-570S User’s Guide...

  • Page 39: Figure 17 Wizard 3: Wep

    Key 1 field. 3.1.3.3 WPA(2)-PSK Only select WPA-PSK or WPA2-PSK if your wireless clients support it. Type a pre-shared key from 8 to 63 ASCII characters (including spaces and symbols). This field is case-sensitive. ZyXEL G-570S User’s Guide...

  • Page 40: Wizard: Confirm Your Settings

    3.1.4 Wizard: Confirm Your Settings This 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. ZyXEL G-570S User’s Guide...

  • Page 41: Figure 19 Wizard: Confirm Your Settings

    Chapter 3 Wizards Figure 19 Wizard: Confirm Your Settings For more detailed background information, see the rest of this User's Guide. ZyXEL G-570S User’s Guide...
  • Page 42 Chapter 3 Wizards ZyXEL G-570S User’s Guide...

  • Page 43: Advanced

    Advanced Navigating the Advanced Screens (45) Status Screens (47) System Screen (51) Wireless Screens (55)

  • Page 45: Navigating The Advanced Screens

    Click the Wizard icon to open the setup wizard. Click the About icon to view copyright information. Click the Logout icon at any time to exit the web configurator. Make sure you save any changes before you log out. ZyXEL G-570S User’s Guide...

  • Page 46: Navigation Panel

    Security Use this screen to configure the wireless LAN’s security settings. MAC Filter Use the MAC filter screen to configure the ZyXEL Device to block or allow only certain devices to associate with the ZyXEL Device. OTIST When the ZyXEL Device is in access point mode, this screen allows you to assign wireless clients the ZyXEL Device’s wireless security settings.

  • Page 47: Status Screens

    This is the same as the device name you entered in the first wizard screen if you entered one there. It is for identification purposes. Operation This field shows whether the device is functioning as an access point, a wireless Mode client, a bridge or an access point and repeater. ZyXEL G-570S User’s Guide...

  • Page 48: Statistics

    5.1.1 Statistics Click View Statistics in the Status screen. This screen displays read-only information including port status and packet specific statistics. Also provided are "system up time" and "poll interval(s)". The Poll Interval(s) field is configurable. ZyXEL G-570S User’s Guide...

  • Page 49: Association List

    Click Status and then the View Association List button to display the Association List screen. When the device is not in wireless client mode, this screen displays which wireless stations are currently associated to the device in the Association List screen. ZyXEL G-570S User’s Guide...

  • Page 50: Figure 23 Status: View Association List

    Click Rescan to check for associated wireless stations. When the device is in wireless client mode, this screen displays details of the access point to which the ZyXEL Device is associated. Figure 24 Status: View Association List: Wireless Client Mode The following table describes the labels in this screen.

  • Page 51: System Screen

    RFC 1466, Guidelines for Management of IP Address Space. 6.1.2 IP Address and Subnet Mask Similar to the way houses on a street share a common street name, computers on a LAN share one common network number. ZyXEL G-570S User’s Guide...

  • Page 52: System Settings

    This name can be up to 30 printable characters long. Spaces are allowed. IP Address Assignment Obtain IP Address Select this option to have your device use a dynamically assigned IP address from Automatically a router each time. ZyXEL G-570S User’s Guide...
  • Page 53 The gateway helps forward packets to their destinations. Leave this field as 0.0.0.0 if you do not know it. Apply Click Apply to save your changes back to the device. Reset Click Reset to reload the previous configuration for this screen. ZyXEL G-570S User’s Guide...
  • Page 54 Chapter 6 System Screen ZyXEL G-570S User’s Guide...

  • Page 55: Wireless Screens

    H A P T E R Wireless Screens This chapter discusses how to configure the wireless network settings in your ZyXEL Device. See the appendices for more detailed information about wireless networks. 7.1 Wireless Network Overview The following figure provides an example of a wireless network.

  • Page 56: Wireless Security Overview

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

  • Page 57: Encryption

    When you select WPA2 or WPA2-PSK in your ZyXEL Device, you can also select an option (WPA compatible) to support WPA as well. In this case, if some of the devices support WPA and some support WPA2, you should set up WPA2-PSK or WPA2 (depending on the type of wireless network login) and select the WPA compatible option in the ZyXEL Device.

  • Page 58: One-Touch Intelligent Security Technology (Otist)

    Chapter 7 Wireless Screens 7.2.5 One-Touch Intelligent Security Technology (OTIST) With ZyXEL’s OTIST, you set up the SSID and the encryption (WEP or WPA-PSK) on the ZyXEL Device. Then, the ZyXEL Device transfers them to the devices in the wireless networks.

  • Page 59: Quality Of Service

    The ZyXEL Device uses WMM QoS to prioritize traffic streams according to the IEEE 802.1q tag or DSCP information in each packet’s header. The ZyXEL Device automatically determines the priority to use for an individual traffic stream.

  • Page 60: Configuring Wireless

    The following table describes the labels in this screen. Table 14 Wireless Settings: Access Point LABEL DESCRIPTION Basic Settings Operation Select the operating mode from the drop-down list. The options are Access Point, Mode Wireless Client, Bridge and AP+Repeater. ZyXEL G-570S User’s Guide...
  • Page 61 Select this to turn on WMM QoS (Wireless MultiMedia Quality of Service). The ZyXEL Device assigns priority to packets based on the 802.1q or DSCP information in their headers. If a packet has no WMM information in its header, it is assigned the default priority.

  • Page 62: Wireless Client Mode

    Select Wireless Client in the Operation Mode field to display the screen as shown next. This mode has the device act as wireless client to connect to a wireless network. WPA, WPA2 and IEEE 802.1x wireless security are not available when you use Wireless Client, Bridge or AP+Repeater mode. ZyXEL G-570S User’s Guide...

  • Page 63: Figure 28 Wireless Settings: Wireless Client

    Cloning (MAC) address at the factory. This address is used to identify the device across a network. Your ZyXEL Device is capable of “cloning”, or emulating, the MAC addresses of one or more other devices. Select the check box and enter the MAC address you want to clone.

  • Page 64: The Site Survey Window

    Click Reset to begin configuring this screen afresh. 7.6.3 The Site Survey Window Click on the Site Survey button in the Wireless > Wireless Settings screen (when the ZyXEL Device is in Wireless Client mode) to display the Site Survey screen. The ZyXEL Device searches for available access points (APs).

  • Page 65: Bridge Mode

    Signal Strength This field displays the signal strength of each access point. Rescan Click Rescan to have the ZyXEL Device search again for available access points. 7.6.4 Bridge Mode The device can act as a wireless network bridge and establish wireless links with other APs.

  • Page 66: Figure 30 Bridging Example

    The following examples show two network topologies that can lead to this problem: If two or more ZyXEL Devices (in bridge mode) are connected to the same hub as shown next. Figure 31 Bridge Loop: Two Bridges Connected to Hub If your ZyXEL Device (in bridge mode) is connected to a wired LAN while communicating with another wireless bridge that is also connected to the same wired LAN as shown next.

  • Page 67: Figure 32 Bridge Loop: Bridge Connected To Wired Lan

    Chapter 7 Wireless Screens Figure 32 Bridge Loop: Bridge Connected to Wired LAN To prevent bridge loops, ensure that your ZyXEL Device is not set to bridge mode while connected to both wired and wireless segments of the same LAN.

  • Page 68: Table 17 Wireless Settings: Bridge

    The options are Full, 50%, 25%, 12% and Min. Data Rate Use this field to select a maximum data rate for the wireless connection(s). Please Management note that this is a total rate to be shared by all of the device’s wireless connections. ZyXEL G-570S User’s Guide...

  • Page 69: Ap+Repeater Mode

    Click Apply to save your changes back to the device. Reset Click Reset to begin configuring this screen afresh. 7.6.5 AP+Repeater Mode Select AP+Repeater as the Operation Mode to have the device act as an access point and a wireless bridge. ZyXEL G-570S User’s Guide...

  • Page 70: Figure 34 Wireless Settings: Ap+Repeater

    The following table describes the labels in this screen. Table 18 Wireless Settings: AP + Repeater LABEL DESCRIPTION Basic Settings Operation Select the operating mode from the drop-down list. The options are Access Point, Mode Wireless Client, Bridge and AP+Repeater. ZyXEL G-570S User’s Guide...
  • Page 71 Select this to turn on WMM QoS (Wireless MultiMedia Quality of Service). The ZyXEL Device assigns priority to packets based on the 802.1q or DSCP information in their headers. If a packet has no WMM information in its header, it is assigned the default priority.

  • Page 72: Configuring Wireless Security

    Click Apply to save your changes back to the device. Reset Click Reset to begin configuring this screen afresh. 7.7 Configuring Wireless Security Click Wireless > Security to display the Security screen. This screen varies according to the encryption method you select. ZyXEL G-570S User’s Guide...

  • Page 73: Wireless Security: Disable

    WEP key to encrypt and decrypt data. You can configure up to four 64-bit, 128-bit or 152-bit WEP keys, but only one key can be used at any one time. ZyXEL G-570S User’s Guide...

  • Page 74: Figure 36 Wireless Security: Wep

    If you chose 152 bit WEP, then enter 16 ASCII characters or 32 hexadecimal characters ("0-9", "A-F"). Apply Click Apply to save your changes back to the device. Reset Click Reset to begin configuring this screen afresh. ZyXEL G-570S User’s Guide...

  • Page 75: Wireless Security: Wpa(2)-Psk

    WPA (Wi-Fi Protected Access) is a subset of the IEEE 802.11i standard. WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption, authentication and key management than WPA. Key differences between WPA(2) and WEP are user authentication and improved data encryption. ZyXEL G-570S User’s Guide...

  • Page 76: Figure 38 Wireless Security: Wpa(2)

    WPA equivalent of automatically changing the WEP key for an AP and all stations in a WLAN on a periodic basis. Specify an interval either in seconds or thousands of packets that the device sends. ZyXEL G-570S User’s Guide...

  • Page 77: Wireless Security: Ieee 802.1X

    The IEEE 802.1x standard outlines enhanced security methods for both the authentication of wireless stations and encryption key management. Once you enable user authentication, you need to specify an external RADIUS server on the device for authentication. Figure 39 Wireless Security: 802.1x ZyXEL G-570S User’s Guide...

  • Page 78: Mac Filter

    00:A0:C5:00:00:02. You need to know the MAC addresses of the devices to configure this screen. The MAC filter works when the device functions as an AP. It allows or denies wireless client access. The MAC filter does not apply to bridge or repeater functions. ZyXEL G-570S User’s Guide...
  • Page 79 To change your device's MAC filter settings, click Wireless > MAC Filter. The screen appears as shown. Be careful not to list your computer's MAC address and select Deny the following MAC address to associate when managing the device via a wireless connection. This would lock you out. ZyXEL G-570S User’s Guide...

  • Page 80: Figure 40 Mac Filter

    Enter the MAC addresses (in XX:XX:XX:XX:XX:XX format) of the wireless station that are allowed or denied access to the device in these address fields. Apply Click Apply to save your changes back to the device. Reset Click Reset to begin configuring this screen afresh. ZyXEL G-570S User’s Guide...

  • Page 81: Otist

    You must enable OTIST on both the AP and wireless client before you start transferring settings. The AP and wireless client(s) MUST use the same Setup key. 7.9.1.1 ZyXEL Device in AP Mode You can enable OTIST using the OTIST button or the web configurator. 7.9.1.1.1 OTIST Button If you use the OTIST button, the default (01234567) or previous saved (through the web configurator) Setup key is used to encrypt the settings that you want to transfer.

  • Page 82: Figure 41 Otist

    The process takes three minutes to complete. 7.9.1.2 Wireless Client Start the ZyXEL utility and click the Adapter tab. Select the OTIST check box, enter the same Setup Key as your AP’s and click Save. Figure 42 Example Wireless Client OTIST Screen 7.9.1.3 ZyXEL Device in Wireless Client Mode...

  • Page 83: Starting Otist

    If you use the OTIST button, the default (01234567) or previous saved (through the web configurator) Setup key is used. Double-click the OTIST button to automatically change the ZyXEL Device to wireless client mode and start OTIST. 7.9.1.3.2 Wireless Client Mode: Web Configurator Start the web configurator and click Wireless.

  • Page 84: Notes On Otist

    Figure 46 OTIST in Progress (Client) • In the wireless client, you see this screen if it can't find an OTIST-enabled AP (with the same Setup key). Click OK to go back to the ZyXEL utility main screen. Figure 47 No AP with OTIST Found •...
  • Page 85 5 If you configure OTIST to generate a WPA-PSK key, this key changes each time you run OTIST. Therefore, if a new wireless client joins your wireless network, you need to run OTIST on the AP and ALL wireless clients again. ZyXEL G-570S User’s Guide...
  • Page 86 Chapter 7 Wireless Screens ZyXEL G-570S User’s Guide...

  • Page 87: Management And Troubleshooting

    Management and Troubleshooting Management Screens (89) Troubleshooting (95)

  • Page 89: Management Screens

    8.1 Maintenance Overview Use these maintenance screens to change the password, view logs, back up or restore the ZyXEL Device’s configuration and change the web configurator language. 8.2 Password To change your device's password (recommended), click Management. The screen appears as shown.

  • Page 90: Logs

    This field lists the source IP address and the port number of the incoming packet that caused the log. Destination This field lists the destination IP address and the port number of the outgoing packet that caused the log. Note This field displays additional information about the log entry. ZyXEL G-570S User’s Guide...

  • Page 91: Configuration File

    The configuration file (often called the romfile or rom-0) contains the factory default settings such as password and TCP/IP Setup, etc. It arrives from ZyXEL with a .rom filename extension. Once you have customized the device's settings, they can be saved back to your computer under a filename of your choosing.

  • Page 92: Restore Configuration

    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. ZyXEL G-570S User’s Guide...

  • Page 93: Back To Factory Defaults

    8.5 F/W Upload Screen Find firmware at www.zyxel.com in a file that (usually) uses the system model name with a .rmt extension, for example, "zyxel.rmt". The upload process uses HTTP (Hypertext Transfer Protocol) and may take up to two minutes. After a successful upload, the system will reboot.

  • Page 94: Figure 57 Firmware Upgrading Screen

    After two minutes, log in again and check your new firmware version in the System Status screen. If the upload was not successful, the following status message displays at the bottom of the screen. Figure 59 Firmware Upload Error ZyXEL G-570S User’s Guide...

  • Page 95: Troubleshooting

    6 Make sure you are using the power adaptor or cord included with the ZyXEL Device. 7 Make sure the power adaptor or cord is connected to the ZyXEL Device and plugged in to an appropriate power source. Make sure the power source is turned on.

  • Page 96: Zyxel Device Access And Login

    Appendix C on page 123. 4 Make sure your computer is in the same subnet as the ZyXEL Device. (If you know that there are routers between your computer and the ZyXEL Device, skip this step.) • If there is no DHCP server on your network, make sure your computer’s IP address is in the same subnet as the ZyXEL Device.
  • Page 97 I cannot access the ZyXEL Device from the WLAN. Make sure the wireless adapter on the wireless station is working properly. Check that both the G-570S and your wireless station are using the same ESSID, channel and security settings. I cannot ping any computer on the WLAN.

  • Page 98: Internet Access

    Internet, especially peer-to-peer applications. 2 Check the signal strength. If the signal strength is low, try moving the ZyXEL Device closer to the AP if possible, and look around to see if there are any devices that might be interfering with the wireless network (for example, microwaves, other wireless networks, and so on).

  • Page 99: Appendices And Index

    Appendices and Index Product Specifications (101) Setting up Your Computer’s IP Address (107) Pop-up Windows, JavaScripts and Java Permissions (123) Wireless LANs (129) Customer Support (143) Legal Information (147) Index (151)

  • Page 101: Appendix A Product Specifications

    P P E N D I X Product Specifications The following tables summarize the ZyXEL Device’s hardware and firmware features. Hardware Specifications Table 30 Hardware Specifications Default IP Address 192.168.1.2 Default Subnet Mask 255.255.255.0 (24 bits) Default Password 1234 Dimensions 112 mm (Wide) ×...
  • Page 102 Bridge Access Point and Repeater Wireless Links The ZyXEL Device can act as a bridge, establishing wireless links with other APs or as a repeater, establishing wireless links to APs. Up to four bridge links. Two or more repeater links are supported. It is suggested that you only use up to three repeater links.
  • Page 103 Appendix A Product Specifications Table 31 Feature Specifications (continued) 10/100M Auto- This auto-negotiating feature allows the ZyXEL Device to detect the speed of negotiating Ethernet/ incoming transmissions and adjust appropriately without manual Fast Ethernet Interface intervention. It allows data transfer of either 10 Mbps or 100 Mbps in either half-duplex or full-duplex mode depending on your Ethernet network.

  • Page 104: Table 32 Wireless Specifications

    You may set a maximum number of wireless stations that may connect to the Client Connections ZyXEL Device. This may be necessary if for example, there is interference or difficulty with channel assignment due to a high density of APs within a coverage area.

  • Page 105: Table 34 Power Adaptor Specifications

    12 Watts Safety Standards C-Tick EUROPEAN PLUG STANDARDS AC Power Adapter Model AD-121AB Input Power 230 Volts AC 50Hz Output Power 12 Volts DC ±5%, 1 Amp Power Consumption 12 Watts Safety Standards CE mark, EN60950 (2001) ZyXEL G-570S User’s Guide...
  • Page 106 12 Watts Safety Standards UK PLUG STANDARDS AC Power Adapter Model AD-121AD Input Power 240 Volts AC 50Hz Output Power 12 Volts DC ±5% 1 Amp Power Consumption 12 Watts Safety Standards CE mark, EN60950 (2001) ZyXEL G-570S User’s Guide...

  • Page 107: Appendix B Setting Up Your Computer's Ip Address

    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 ZyXEL Device’s LAN port. Windows 95/98/Me Click Start, Settings, Control Panel and double-click the Network icon to open the Network window.

  • Page 108: Figure 60 Windows 95/98/Me: Network: Configuration

    2 Select Client and then click Add. 3 Select Microsoft from the list of manufacturers. 4 Select Client for Microsoft Networks from the list of network clients and then click 5 Restart your computer so the changes you made take effect. ZyXEL G-570S User’s Guide...

  • Page 109: Figure 61 Windows 95/98/Me: Tcp/Ip Properties: Ip Address

    • 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). ZyXEL G-570S User’s Guide...

  • Page 110: Figure 62 Windows 95/98/Me: Tcp/Ip Properties: Dns Configuration

    5 Click OK to save and close the TCP/IP Properties window. 6 Click OK to close the Network window. Insert the Windows CD if prompted. 7 Turn on your ZyXEL Device and restart your computer when prompted. Verifying Settings 1 Click Start and then Run.

  • Page 111: Figure 63 Windows Xp: Start Menu

    Figure 63 Windows XP: Start Menu 2 In the Control Panel, double-click Network Connections (Network and Dial-up Connections in Windows 2000/NT). Figure 64 Windows XP: Control Panel 3 Right-click Local Area Connection and then click Properties. ZyXEL G-570S User’s Guide...

  • Page 112: Figure 65 Windows Xp: Control Panel: Network Connections: Properties

    • 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. ZyXEL G-570S User’s Guide...

  • Page 113: Figure 67 Windows Xp: Internet Protocol (Tcp/Ip) Properties

    To manually configure a default metric (the number of transmission hops), clear the Automatic metric check box and type a metric in Metric. • Click Add. • Repeat the previous three steps for each default gateway you want to add. • Click OK when finished. ZyXEL G-570S User’s Guide...

  • Page 114: Figure 68 Windows Xp: Advanced Tcp/Ip Properties

    • If you know your DNS server IP address(es), click Use the following DNS server addresses, and type them in the Preferred DNS server and Alternate DNS server fields. If you have previously configured DNS servers, click Advanced and then the DNS tab to order them. ZyXEL G-570S User’s Guide...

  • Page 115: Figure 69 Windows Xp: Internet Protocol (Tcp/Ip) Properties

    Properties window. 10 Close the Network Connections window (Network and Dial-up Connections in Windows 2000/NT). 11 Turn on your ZyXEL Device and restart your computer (if prompted). Verifying Settings 1 Click Start, All Programs, Accessories and then Command Prompt. 2 In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also open Network Connections, right-click a network connection, click Status and then click the Support tab.

  • Page 116: Figure 70 Macintosh Os 8/9: Apple Menu

    2 Select Ethernet built-in from the Connect via list. Figure 71 Macintosh OS 8/9: TCP/IP 3 For dynamically assigned settings, select Using DHCP Server from the Configure: list. 4 For statically assigned settings, do the following: • From the Configure box, select Manually. ZyXEL G-570S User’s Guide...

  • Page 117: Figure 72 Macintosh Os X: Apple Menu

    • Type your IP address in the IP Address box. • Type your subnet mask in the Subnet mask box. • Type the IP address of your ZyXEL Device in the Router address box. 5 Close the TCP/IP Control Panel.

  • Page 118: Figure 73 Macintosh Os X: Network

    • Type your IP address in the IP Address box. • Type your subnet mask in the Subnet mask box. • Type the IP address of your ZyXEL Device in the Router address box. 5 Click Apply Now and close the window.

  • Page 119: Figure 74 Red Hat 9.0: Kde: Network Configuration: Devices

    Figure 74 Red Hat 9.0: KDE: Network Configuration: Devices 2 Double-click on the profile of the network card you wish to configure. The Ethernet Device General screen displays as shown. Figure 75 Red Hat 9.0: KDE: Ethernet Device: General ZyXEL G-570S User’s Guide...

  • Page 120: Figure 76 Red Hat 9.0: Kde: Network Configuration: Dns

    Ethernet card). Open the eth0 eth0 configuration file with any plain text editor. • If you have a dynamic IP address, enter in the field. The dhcp BOOTPROTO= following figure shows an example. ZyXEL G-570S User’s Guide...

  • Page 121: Figure 78 Red Hat 9.0: Dynamic Ip Address Setting In Ifconfig-Eth0

    Figure 81 Red Hat 9.0: Restart Ethernet Card [root@localhost init.d]# network restart Shutting down interface eth0: [OK] Shutting down loopback interface: [OK] Setting network parameters: [OK] Bringing up loopback interface: [OK] Bringing up interface eth0: [OK] ZyXEL G-570S User’s Guide...

  • Page 122: Figure 82 Red Hat 9.0: Checking Tcp/Ip Properties

    Bcast:172.23.19.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:717 errors:0 dropped:0 overruns:0 frame:0 TX packets:13 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:730412 (713.2 Kb) TX bytes:1570 (1.5 Kb) Interrupt:10 Base address:0x1000 [root@localhost]# ZyXEL G-570S User’s Guide...

  • Page 123: Appendix C Pop-Up Windows, Javascripts And Java Permissions

    1 In Internet Explorer, select Tools, Pop-up Blocker and then select Turn Off Pop-up Blocker. Figure 83 Pop-up Blocker You can also check if pop-up blocking is disabled in the Pop-up Blocker section in the Privacy tab. 1 In Internet Explorer, select Tools, Internet Options, Privacy. ZyXEL G-570S User’s Guide...

  • Page 124: Figure 84 Internet Options: Privacy

    Alternatively, if you only want to allow pop-up windows from your device, see the following steps. 1 In Internet Explorer, select Tools, Internet Options and then the Privacy tab. 2 Select Settings…to open the Pop-up Blocker Settings screen. ZyXEL G-570S User’s Guide...

  • Page 125: Figure 85 Internet Options: Privacy

    3 Type the IP address of your device (the web page that you do not want to have blocked) with the prefix “http://”. For example, http://192.168.167.1. 4 Click Add to move the IP address to the list of Allowed sites. Figure 86 Pop-up Blocker Settings ZyXEL G-570S User’s Guide...

  • Page 126: Figure 87 Internet Options: Security

    3 Scroll down to Scripting. 4 Under Active scripting make sure that Enable is selected (the default). 5 Under Scripting of Java applets make sure that Enable is selected (the default). 6 Click OK to close the window. ZyXEL G-570S User’s Guide...

  • Page 127: Figure 88 Security Settings - Java Scripting

    2 Click the Custom Level... button. 3 Scroll down to Microsoft VM. 4 Under Java permissions make sure that a safety level is selected. 5 Click OK to close the window. Figure 89 Security Settings - Java ZyXEL G-570S User’s Guide...

  • Page 128: Figure 90 Java (Sun)

    1 From Internet Explorer, click Tools, Internet Options and then the Advanced tab. 2 Make sure that Use Java 2 for <applet> under Java (Sun) is selected. 3 Click OK to close the window. Figure 90 Java (Sun) ZyXEL G-570S User’s Guide...

  • Page 129: Appendix D Wireless Lans

    A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other. ZyXEL G-570S User’s Guide...

  • Page 130: Figure 92 Basic Service Set

    An ESSID (ESS IDentification) uniquely identifies each ESS. All access points and their associated wireless clients within the same ESS must have the same ESSID in order to communicate. ZyXEL G-570S User’s Guide...

  • Page 131: Figure 93 Infrastructure Wlan

    (AP) or wireless gateway, but out-of-range of each other, so they cannot "hear" each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other. ZyXEL G-570S User’s Guide...

  • Page 132: Figure 94 Rts/Cts

    AP 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. ZyXEL G-570S User’s Guide...

  • Page 133: Table 35 Ieee 802.11G

    5.5 / 11 CCK (Complementary Code Keying) 6/9/12/18/24/36/48/54 OFDM (Orthogonal Frequency Division Multiplexing) Wireless Security Overview Wireless security is vital to your network to protect wireless communication between wireless clients, access points and the wired network. ZyXEL G-570S User’s Guide...

  • Page 134: Table 36 Wireless Security Levels

    Appendix D Wireless LANs Wireless security methods available on the ZyXEL Device are data encryption, wireless client authentication, restricting access by device MAC address and hiding the ZyXEL Device identity. The following figure shows the relative effectiveness of these wireless security methods available on your ZyXEL Device.

  • Page 135: Types Of Radius Messages

    EAP to interact with an EAP-compatible RADIUS server, an access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server and an intermediary AP(s) that supports IEEE 802.1x. . ZyXEL G-570S User’s Guide...
  • Page 136 However, PEAP only supports EAP methods, such as EAP-MD5, EAP-MSCHAPv2 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 IEEE 802.1x. ZyXEL G-570S User’s Guide...

  • Page 137: Table 37 Comparison Of Eap Authentication Types

    If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending on whether you have an external RADIUS server or not. Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is less secure than WPA or WPA2. ZyXEL G-570S User’s Guide...
  • Page 138 AP and does not need to go with the authentication process again. Pre-authentication enables fast roaming by allowing the wireless client (already connecting to an AP) to perform IEEE 802.1x authentication with another AP before connecting to it. ZyXEL G-570S User’s Guide...

  • Page 139: Wireless Client Wpa Supplicants

    2 The AP checks each wireless client's password and (only) allows it to join the network if the password matches. 3 The AP and wireless clients use the pre-shared key to generate a common PMK (Pairwise Master Key). ZyXEL G-570S User’s Guide...

  • Page 140: Figure 96 Wpa(2)-Psk Authentication

    An antenna couples RF signals onto air. A transmitter within a wireless device sends an RF signal to the antenna, which propagates the signal through the air. The antenna also operates in reverse by capturing RF signals from the air. ZyXEL G-570S User’s Guide...

  • Page 141: Antenna Characteristics

    In general, antennas should be mounted as high as practically possible and free of obstructions. In point-to–point application, position both antennas at the same height and in a direct line of sight to each other to attain the best performance. ZyXEL G-570S User’s Guide...
  • Page 142 For a single AP application, place omni-directional antennas as close to the center of the coverage area as possible. For directional antennas, point the antenna in the direction of the desired coverage area. ZyXEL G-570S User’s Guide...

  • Page 143: Appendix E Customer Support

    • Telephone: +506-2017878 • Fax: +506-2015098 • Web Site: www.zyxel.co.cr • FTP Site: ftp.zyxel.co.cr • Regular Mail: ZyXEL Costa Rica, Plaza Roble Escazú, Etapa El Patio, Tercer Piso, San José, Costa Rica Czech Republic • E-mail: info@cz.zyxel.com • Telephone: +420-241-091-350 •...
  • Page 144 • E-mail: info@zyxel.fr • Telephone: +33-4-72-52-97-97 • Fax: +33-4-72-52-19-20 • Web Site: www.zyxel.fr • Regular Mail: ZyXEL France, 1 rue des Vergers, Bat. 1 / C, 69760 Limonest, France Germany • Support E-mail: support@zyxel.de • Sales E-mail: sales@zyxel.de • Telephone: +49-2405-6909-0 •...
  • Page 145 • Sales E-mail: sales@zyxel.com • Telephone: +1-800-255-4101, +1-714-632-0882 • Fax: +1-714-632-0858 • Web Site: www.us.zyxel.com • FTP Site: ftp.us.zyxel.com • Regular Mail: ZyXEL Communications Inc., 1130 N. Miller St., Anaheim, CA 92806- 2001, U.S.A. Norway • Support E-mail: support@zyxel.no • Sales E-mail: sales@zyxel.no •...
  • Page 146 Appendix E Customer Support • Web Site: www.zyxel.es • Regular Mail: ZyXEL Communications, Arte, 21 5ª planta, 28033 Madrid, Spain Sweden • Support E-mail: support@zyxel.se • Sales E-mail: sales@zyxel.se • Telephone: +46-31-744-7700 • Fax: +46-31-744-7701 • Web Site: www.zyxel.se • Regular Mail: ZyXEL Communications A/S, Sjöporten 4, 41764 Göteborg, Sweden Ukraine •...

  • Page 147: Appendix F Legal Information

    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 patent rights of others.
  • Page 148 Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. Viewing Certifications 1 Go to http://www.zyxel.com. 2 Select your product on the ZyXEL home page to go to that product's page. 3 Select the certification you wish to view from this page. ZyXEL G-570S User’s Guide...

  • Page 149: Zyxel Limited Warranty

    Any replacement will consist of a new or re-manufactured functionally equivalent product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product has been modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.
  • Page 150 Appendix F Legal Information ZyXEL G-570S User’s Guide...

  • Page 151: Index

    EAP Authentication Certificate Authority encryption 65, 101, 102, 103, 138 See CA. error log certifications notices ESSID viewing ethernet ports channel 65, 131 interference European plug standards channel ID 61, 68, 71 Extended Service Set, See ESS ZyXEL G-570S User’s Guide...
  • Page 152 (IV) operating humidity interference operating modes Internet access operating temperature Internet browser settings OTIST IP address 51, 92, 96, 101 output power output power management language LEDs 27, 95, 98, 102 packet log ZyXEL G-570S User’s Guide...
  • Page 153 93, 96, 97, 102, 103 troubleshooting restart automatic 92, 94 restore 89, 91, 92 RF frequency range RF interference RJ-45 upload configuration roaming upload firmware rom-0 file romfile RTS (Request To Send) threshold 131, 132 ZyXEL G-570S User’s Guide...
  • Page 154 WPA-PSK wireless client supplicant with RADIUS application example WPA2 user authentication vs WPA2-PSK wireless client supplicant with RADIUS application example WPA2-Pre-Shared Key WPA2-PSK 137, 138 application example WPA-PSK 137, 138 application example ZyXEL G-570S User’s Guide...

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