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ZyXEL Communications G-570U User Manual

Ieee 802.11a/b/g wireless access point/bridge
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ZyXEL G-570U
IEEE 802.11a/b/g Wireless Access Point / Bridge
User's Guide
Version 1.00
Edition 1
07/2006

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Summary of Contents for ZyXEL Communications G-570U

  • Page 1 ZyXEL G-570U IEEE 802.11a/b/g Wireless Access Point / Bridge User’s Guide Version 1.00 Edition 1 07/2006...

  • Page 3: Copyright

    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 4: Certifications

    ZyXEL G-570U User’s Guide Certifications Federal Communications Commission (FCC) Interference Statement The 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 5 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 from the drop-down list box on the ZyXEL home page to go to that product's page. 3 Select the certification you wish to view from this page.

  • Page 6: Safety Warnings

    ZyXEL G-570U User’s Guide Safety Warnings For your safety, be sure to read and follow all warning notices and instructions. • Do NOT use this product near water, for example, in a wet basement or near a swimming pool. • Do NOT expose your device to dampness, dust or corrosive liquids.
  • Page 7 ZyXEL G-570U User’s Guide This product is recyclable. Dispose of it properly. Safety Warnings...

  • Page 8: 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 9: Customer Support

    ZyXEL G-570U 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 10 ZyXEL G-570U User’s Guide METHOD SUPPORT E-MAIL TELEPHONE WEB SITE REGULAR MAIL SALES E-MAIL FTP SITE LOCATION support@zyxel.no +47-22-80-61-80 www.zyxel.no ZyXEL Communications A/S Nils Hansens vei 13 NORWAY sales@zyxel.no +47-22-80-61-81 0667 Oslo Norway info@pl.zyxel.com +48 (22) 333 8250 www.pl.zyxel.com ZyXEL Communications ul.

  • Page 11: Table Of Contents

    List of Tables ......................19 Preface ........................21 Chapter 1 Getting to Know Your G-570U ................23 1.1 Introducing the G-570U Wireless Access Point ..........23 1.2 G-570U Features ....................23 1.3 Applications for the G-570U ................26 1.3.1 Access Point for Internet Access ..............26 1.3.2 Corporate Network Access Application ............26...
  • Page 12 Introducing the Web Configurator................ 37 3.1 Web Configurator Overview ................37 3.2 Accessing the G-570U Web Configurator ............37 3.3 Configuring the G-570U Using the Wizard ............39 3.3.1 Wizard: Basic Settings ................39 3.3.2 Wizard: Wireless Settings .................40 3.3.3 Wizard: Security Settings ................41 3.3.3.1 Disable ....................41...
  • Page 13 6.14.4 Wireless Security: WPA(2) ..............81 6.14.5 Wireless Security: 802.1x ..............83 6.15 MAC Filter .......................85 6.16 OTIST ......................87 6.16.1 Enabling OTIST: G-570U in AP Mode ............87 6.16.1.1 AP ....................87 6.16.1.2 Wireless Client ................88 6.16.1.3 G-570U in Wireless Client Mode ...........88 6.16.2 Starting OTIST ..................89 6.16.3 Notes on OTIST ..................90...
  • Page 14 8.4.1 Pop-up Windows, JavaScripts and Java Permissions ......101 8.4.1.1 Internet Explorer Pop-up Blockers ..........101 8.4.1.2 JavaScripts ..................104 8.4.1.3 Java Permissions ................106 8.5 Testing the Connection to the G-570U .............108 Appendix A Product Specifications ..................109 Appendix B Setting up Your Computer’s IP Address............115 Appendix C Wireless LANs ......................

  • Page 15: List Of Figures

    Figure 6 Bridge Repeater Application ................. 28 Figure 7 AP+Repeater Application ..................29 Figure 8 Front Panel ......................29 Figure 9 G-570U: Rear Panel ..................... 30 Figure 10 Wired Connection ....................31 Figure 11 Control Panel ...................... 32 Figure 12 Network Connection .................... 32 Figure 13 Local Area Connection Properties ..............
  • Page 16 Figure 53 AP Mode: OTIST ....................87 Figure 54 Example Wireless Client OTIST Screen ............. 88 Figure 55 G-570U in Wireless Client Mode: OTIST Screen ..........89 Figure 56 Security Key ......................89 Figure 57 OTIST in Progress (AP) ..................90 Figure 58 OTIST in Progress (Client) ..................
  • Page 17 ZyXEL G-570U User’s Guide Figure 82 Windows 95/98/Me: TCP/IP Properties: IP Address ........... 117 Figure 83 Windows 95/98/Me: TCP/IP Properties: DNS Configuration ......118 Figure 84 Windows XP: Start Menu ..................119 Figure 85 Windows XP: Control Panel ................119 Figure 86 Windows XP: Control Panel: Network Connections: Properties ......
  • Page 18 ZyXEL G-570U User’s Guide List of Figures...

  • Page 19: List Of Tables

    Table 26 Management: Configuration File: Restore Configuration ........96 Table 27 Management: F/W Upload ................... 98 Table 28 Troubleshooting the Start-Up of Your G-570U ............. 99 Table 29 Troubleshooting the Password ................99 Table 30 Troubleshooting the WLAN Interface ..............100 Table 31 Troubleshooting the Ethernet Interface ...............
  • Page 20 ZyXEL G-570U User’s Guide Table 39 Classes of IP Addresses ..................146 Table 40 Allowed IP Address Range By Class ..............146 Table 41 “Natural” Masks ....................147 Table 42 Alternative Subnet Mask Notation ............... 147 Table 43 Two Subnets Example ..................148 Table 44 Subnet 1 ......................

  • Page 21: Preface

    Settings and then click Control Panel. • “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”. • The ZyXEL G-570U 802.11g Wireless Access Point may be referred to simply as the G- 570U in the User's Guide.
  • Page 22 ZyXEL G-570U User’s Guide Graphics Icons Key G-570U Computer Notebook computer Server Modem Wireless Signal Telephone Switch Router Preface...

  • Page 23: Getting To Know Your G-570U

    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 G-570U 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: Figure 1 Wds Functionality Example

    The LAN interface automatically adjusts to either a crossover or straight-through Ethernet cable. Reset Button The G-570U reset button is built into the rear panel. Use this button to restart the device or restore the factory default password. 802.11g Wireless LAN Standard The ZyXEL wireless products containing the letter "G"...

  • Page 25: Ssl Passthrough

    By convention, URLs that require an SSL connection start with "https" instead of "http". Wireless LAN MAC Address Filtering Your G-570U checks the MAC address of the wireless station against a list of allowed or denied MAC addresses. WEP Encryption WEP (Wired Equivalent Privacy) encrypts data frames before transmitting over the wireless network to help keep network communications private.

  • Page 26: Applications For The G-570U

    With the wireless association list, you can see the list of the wireless stations that are currently using the G-570U to access your wired network. When the G-570U is in client mode, the wireless association list displays details of the access point to which the G-570U is connected.

  • Page 27: Wireless Client Application

    Figure 3 Corporate Network Application 1.3.3 Wireless Client Application The G-570U 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. Figure 4 Wireless Client Application 1.3.4 Bridge / Repeater...

  • Page 28: Access Point And Repeater

    ZyXEL G-570U User’s Guide Figure 5 Bridge Application A G-570U in bridge mode without an Ethernet connection can function as a repeater. It transmits traffic from one AP to another AP without using a wired connection. C in the following graphic repeats wireless traffic between A and B.

  • Page 29: The Led Display

    STATUS DESCRIPTION PWR/ Green Blinking The G-570U is not ready or rebooting. The G-570U has a successful reboot and is receiving power. The G-570U is not receiving power. ETHN Green Blinking The G-570U is sending/receiving data. The G-570U has a successful 10Mbps Ethernet connection.

  • Page 30: The Rear Panel

    Hold this button in for 10 seconds or more to reset the device. All settings will be returned to factory defaults. OTIST button When the G-570U is in AP mode, click this button once to activate OTIST. In any mode, double-click this button to enter Wireless Client mode and activate OTIST.

  • Page 31: Management Computer Setup

    This chapter describes how to prepare your computer to access the G-570U web configurator. 2.1 Introduction You can connect a computer to the G-570U for management purposes either using an Ethernet connection (recommended for a first time management session) or wirelessly.

  • Page 32: Windows 2000/Nt/Xp

    ZyXEL G-570U User’s Guide 2.2.1.1 Windows 2000/NT/XP The following example figures use the default Windows XP GUI theme. 1 Click start (Start in Windows 2000/NT) > Settings > Control Panel. 2 In the Control Panel, double-click Network Connections (Network and Dial-up Connections in Windows 2000/NT).

  • Page 33: Figure 13 Local Area Connection Properties

    ZyXEL G-570U User’s Guide Figure 13 Local Area Connection Properties 5 Select Use the following IP Address and fill 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 Figure 14 Internet Protocol Properties 6 Remove any previously installed gateways in the IP Settings tab and click OK to go back to the Internet Protocol TCP/IP Properties screen.

  • Page 34: Wireless Connection

    Windows 2000/NT). 2.3 Wireless Connection Ensure that the wireless stations have a compatible wireless card/adapter with the same wireless settings as the G-570U. The following figure shows how you can access your G-570U wirelessly. Figure 16 Wireless Connection SSID: ZyXEL G-...

  • Page 35: Restarting The G-570U

    2.5 Resetting the G-570U If you forget the G-570U's IP address or your password, to access the G-570U you will need to reload the factory-default using the RESET button. Resetting the G-570U replaces the current configuration file with the factory-default configuration file. This means that you will lose all configurations that you had previously.
  • Page 36 ZyXEL G-570U User’s Guide Chapter 2 Management Computer Setup...

  • Page 37: Introducing The Web Configurator

    3 Launch your web browser. 4 Type the device name of your G-570U as the URL. ZyXELXXXX is the default where “XXXX” is the last four digits of the MAC address. The MAC address is on the bottom of the device).

  • Page 38: Figure 17 Web Configurator Address

    ZyXEL G-570U User’s Guide Figure 17 Web Configurator Address 5 Type "1234" (default) as the password and click Login. Figure 18 Login Screen The default password is 1234. 6 Select your language and click Apply. Figure 19 Language Screen 7 The following screen displays. Select Go Wizard Setup and click Apply to use the wizard setup screens for initial configuration (see Section 3.3 on page...

  • Page 39: Configuring The G-570U Using The Wizard

    Figure 20 Select Wizard or Advanced Setup Screen 3.3 Configuring the G-570U Using the Wizard The wizard consists of a series of screens to help you configure your G-570U 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 40: Wizard: Wireless Settings

    Figure 21 Wizard: Basic Settings Do not select this unless you have a router that can assign the G-570U an IP address. 3.3.2 Wizard: Wireless Settings Use this wizard screen to set up the wireless LAN. See the chapter on the wireless screens for background information.

  • Page 41: Wizard: Security Settings

    ZyXEL G-570U User’s Guide Figure 22 Wizard: Wireless Settings 3.3.3 Wizard: Security Settings Use this screen to configure security for your wireless LAN. The screen varies depending on what you select in the Encryption Method field. Select Disable to have no wireless security configured, select WEP, or select WPA-PSK if your wireless clients support WPA-PSK.

  • Page 42: Wep

    ZyXEL G-570U User’s Guide Figure 23 Setup Wizard 3: Disable 3.3.3.2 WEP 1 WEP (Wired Equivalent Privacy) encrypts data frames before transmitting over the wireless network. Select 64-bit, or 128-bit from the WEP Encryption drop-down list box. The higher the WEP encryption, the higher the security but the slower the throughput.

  • Page 43: Wpa(2)-Psk

    ZyXEL G-570U User’s Guide Figure 24 Wizard 3: WEP Use Passphrase to automatically generate keys or manually enter a key in the Key 1 field. 3.3.3.3 WPA(2)-PSK Select WPA-PSK or WPA2-PSK only 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.

  • Page 44: Wizard: Confirm Your Settings

    ZyXEL G-570U User’s Guide Figure 25 Wizard 3: WPA(2)-PSK 3.3.4 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.

  • Page 45: Navigating The Advanced Screens

    ZyXEL G-570U User’s Guide Figure 26 Wizard: Confirm Your Settings For more detailed background information, see the rest of this User's Guide. 3.4 Navigating the Advanced Screens The STATUS screen is the first advanced screen that displays. This section explains how to navigate the advanced configuration screens.

  • Page 46: Navigation Panel

    ZyXEL G-570U User’s Guide Figure 27 Status Screen The following table describes the global web configurator icons (in the upper right corner of most screens). Table 4 Global Icon Key ICON DESCRIPTION Click the Wizard icon to open the setup wizard.

  • Page 47: Table 5 Screens Summary

    Security Use this screen to configure wireless LAN security settings. MAC Filter Use the MAC filter screen to configure the G-570U to allow access to devices or block the devices from accessing the G-570U. OTIST This screen allows you to assign the G-570U’s wireless security settings to the wireless clients.
  • Page 48 ZyXEL G-570U User’s Guide Chapter 3 Introducing the Web Configurator...

  • Page 49: Chapter 4 Status Screens

    ZyXEL G-570U User’s Guide H A P T E R Status Screens This chapter describes the Status screens. 4.1 System Status Click Status to open the following screen. The Status screen display a snapshot of your device’s settings. You can also view network statistics and a list of wireless stations currently associated with your device.

  • Page 50: Statistics

    ZyXEL G-570U User’s Guide Table 6 Status LABEL DESCRIPTION MAC Address This field displays the MAC address of the device. The MAC (Media Access Control) or Ethernet address on a LAN (Local Area Network) is unique to your computer. A network interface card such as an Ethernet adapter has a hardwired address that is assigned at the factory.

  • Page 51: Figure 29 Status: View Statistics

    ZyXEL G-570U User’s Guide Figure 29 Status: View Statistics The following table describes the labels in this screen. Table 7 Status: View Statistics LABEL DESCRIPTION Ethernet Packets This row displays the numbers of packets received and transmitted by the Ethernet port.

  • Page 52: Association List

    ZyXEL G-570U User’s Guide 4.1.2 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. When the device is in Wireless Client mode, it displays details of the access point to which the device is associated.

  • Page 53: Chapter 5 System Screen

    ZyXEL G-570U User’s Guide H A P T E R System Screen This chapter provides information on the System screen. 5.1 TCP/IP Parameters 5.1.1 IP Address Assignment Every computer on the Internet must have a unique IP address. If your networks are isolated from the Internet, for instance, only between your two branch offices, you can assign any IP addresses to the hosts without problems.

  • Page 54: System Settings

    ZyXEL G-570U User’s Guide If the ISP did not explicitly give you an IP network number, then most likely you have a single user account and the ISP will assign you a dynamic IP address when the connection is established. The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for private use;...
  • Page 55 ZyXEL G-570U User’s Guide Table 10 System Settings LABEL DESCRIPTION Obtain IP Address Select this option to have your device use a dynamically assigned IP address from Automatically a router each time. Use fixed IP Select this option to have your device use a static IP address. When you select this address option, fill in the fields below.
  • Page 56 ZyXEL G-570U User’s Guide Chapter 5 System Screen...

  • Page 57: Chapter 6 Wireless Screens

    ZyXEL G-570U User’s Guide H A P T E R Wireless Screens This chapter discusses how to configure wireless settings and wireless security on your G- 570U. 6.1 Wireless LAN Overview This section introduces the wireless LAN (WLAN) and some basic scenarios.

  • Page 58: Ess

    ZyXEL G-570U User’s Guide Figure 33 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 59: Wireless Lan Basics

    ZyXEL G-570U User’s Guide Figure 34 Extended Service Set 6.2 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 60: Rts/Cts

    Therefore, they are considered hidden from each other. Figure 35 RTS/CTS When station A sends data to the G-570U, 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.

  • Page 61: Fragmentation Threshold

    6.2.4 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-570U 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 62: Table 11 Wireless Settings: Access Point

    ZyXEL G-570U User’s Guide The following table describes the labels in this screen. Table 11 Wireless Settings: Access Point LABEL DESCRIPTION Operation Mode Select the operating mode from the drop-down list. The options are AP, Wireless Client, Bridge and AP+Repeater.

  • Page 63: Wireless Client Mode

    ZyXEL G-570U User’s Guide Table 11 Wireless Settings: Access Point (continued) LABEL DESCRIPTION Radio Enable Turn on the wireless adapter to allow wireless communications between the device and other wireless devices. Turn off the wireless adapter to stop wireless communications between the device and other wireless devices.

  • Page 64: Figure 37 Wireless Settings: Wireless Client

    ZyXEL G-570U User’s Guide Figure 37 Wireless Settings: Wireless Client The following table describes the labels in this screen. Table 12 Wireless Settings: Wireless Client LABEL DESCRIPTION Operation Mode Select the operating mode from the drop-down list. The options are AP, Wireless Client, Bridge and AP+Repeater.

  • Page 65: Bridge Mode

    You can only use WEP keys to encrypt traffic between APs. Figure 38 Bridging Example Be careful to avoid bridge loops when you enable bridging in the G-570U. Bridge loops cause broadcast traffic to circle the network endlessly, resulting in possible throughput degradation and disruption of communications.

  • Page 66: Figure 39 Bridge Loop: Two Bridges Connected To Hub

    LAN as shown next. Figure 40 Bridge Loop: Bridge Connected to Wired LAN To prevent bridge loops, ensure that your G-570U is not set to bridge mode while connected to both wired and wireless segments of the same LAN.

  • Page 67: Figure 41 Wireless Settings: Bridge

    ZyXEL G-570U User’s Guide Figure 41 Wireless Settings: Bridge The following table describes the labels in this screen. Table 13 Wireless Settings: Bridge LABEL DESCRIPTION Operation Mode Select the operating mode from the drop-down list. The options are AP, Wireless Client, Bridge and AP+Repeater.

  • Page 68: Ap+Repeater Mode

    ZyXEL G-570U User’s Guide Table 13 Wireless Settings: Bridge (continued) LABEL DESCRIPTION Wireless Mode Select 802.11a only to allow only IEEE 802.11a compliant WLAN devices to associate with the device. Select 802.11b only to allow only IEEE 802.11b compliant WLAN devices to associate with the device.

  • Page 69: Figure 42 Wireless Settings: Ap+Repeater

    ZyXEL G-570U User’s Guide Figure 42 Wireless Settings: AP+Repeater The following table describes the labels in this screen. Table 14 Wireless Settings: AP + Repeater LABEL DESCRIPTION Operation Mode Select the operating mode from the drop-down list. The options are AP, Wireless Client, Bridge and AP+Repeater.
  • Page 70 ZyXEL G-570U User’s Guide Table 14 Wireless Settings: AP + Repeater (continued) LABEL DESCRIPTION Wireless Mode Select 802.11a only to allow only IEEE 802.11a compliant WLAN devices to associate with the device. Select 802.11b only to allow only IEEE 802.11b compliant WLAN devices to associate with the device.

  • Page 71: Wireless Security Overview

    Wi-Fi Protected Access (WPA) Most Secure WPA2 If you do not enable any wireless security on your G-570U, your network is accessible to any wireless networking device that is within range. 6.4.1 Encryption • Use WPA(2) security if you have WP(2)A-aware wireless clients and a RADIUS server.

  • Page 72: Restricted Access

    (Allow Association) or exclude them from accessing the AP (Deny Association). 6.4.4 Hide G-570U Identity If you hide the ESSID, then the G-570U cannot be seen when a wireless client scans for local APs. The trade-off for the extra security of “hiding” the G-570U may be inconvenience for some valid WLAN clients.

  • Page 73: Overview

    The same is true for shared key authentication. However, when it is set to auto authentication, the G-570U will accept either type of authentication request and the G-570U will fall back to use open authentication if the shared key does not match.

  • Page 74: Introduction To Radius

    Determines the identity of the users. • Accounting Keeps track of the client’s network activity. RADIUS user is a simple package exchange in which your G-570U acts as a message relay between the wireless station and the network RADIUS server. 6.7.1 Types of RADIUS Messages...

  • Page 75: Eap Authentication Overview

    EAP to interact with an 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-570U supports EAP-TLS, EAP-TTLS, EAP-MD5 and PEAP with RADIUS. Refer to the appendix about the types of EAP authentication for descriptions on the common types.

  • Page 76: Introduction To Wpa And Wpa2

    ZyXEL G-570U User’s Guide To use Dynamic WEP, enable and configure the RADIUS server and enable Dynamic WEP Key Exchange in the WIRELESS Security 802.1x screen. Ensure that the wireless station’s EAP type is configured to one of the following: •...

  • Page 77: User Authentication

    ZyXEL G-570U User’s Guide 6.10.2 User Authentication WPA or WPA2 applies IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless clients using an external RADIUS database. 6.11 WPA(2)-PSK Application Example A WPA(2)-PSK application looks as follows. 1 First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key (PSK) must consist of between 8 and 63 ASCII characters (including spaces and symbols).

  • Page 78: Security Parameters Summary

    ZyXEL G-570U User’s Guide generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. Figure 46 WPA with RADIUS Application Example 6.13 Security Parameters Summary Refer to this table to see what other security parameters you should configure for each authentication method/ key management protocol type.

  • Page 79: Configuring Wireless Security

    ZyXEL G-570U User’s Guide Table 16 Wireless Security Relational Matrix AUTHENTICATION METHOD/ KEY ENCRYPTION ENTER MANUAL IEEE 802.1X MANAGEMENT METHOD PROTOCOL WPA2 Enable WPA2-PSK Enable 6.14 Configuring Wireless Security In order to configure and enable wireless security; click Wireless > Security to display the Security screen.

  • Page 80: Wireless Security: Wpa(2)-Psk

    ZyXEL G-570U User’s Guide Figure 48 Wireless Security: WEP The following table describes the labels in this screen. Table 18 Wireless Security: WEP LABEL DESCRIPTION Encryption Method Select WEP if you want to configure WEP encryption parameters. Authentication Select Open or Shared from the drop-down list box.

  • Page 81: Wireless Security: Wpa(2)

    ZyXEL G-570U User’s Guide Figure 49 Wireless Security: WPA(2)-PSK The following table describes the labels in this screen. Table 19 Wireless Security: WPA-PSK LABEL DESCRIPTION Encryption Method Select WPA-PSK, WPA2-PSK or WPA-PSK & WPA2-PSK if you want to configure a pre-shared key. Choose this option only if your wireless clients support Pre-Shared Key The encryption mechanisms used for WPA and WPA-PSK are the same.

  • Page 82: Figure 50 Wireless Security: Wpa(2)

    ZyXEL G-570U User’s Guide Figure 50 Wireless Security: WPA(2) The following table describes the labels in this screen. Table 20 Wireless Security: WPA(2) LABEL DESCRIPTION Encryption Method Select WPA, WPA2 or WPA & WPA2 to configure user authentication and improved data encryption.

  • Page 83: Wireless Security: 802.1X

    ZyXEL G-570U User’s Guide Table 20 Wireless Security: WPA(2) (continued) LABEL DESCRIPTION Global-Key This is how often the AP sends a new group key out to all clients. The re-keying Update process is the WPA equivalent of automatically changing the WEP key for an AP and all stations in a WLAN on a periodic basis.

  • Page 84: Table 21 Wireless Security: 802.1X

    ZyXEL G-570U User’s Guide The following table describes the labels in this screen. Table 21 Wireless Security: 802.1x LABEL DESCRIPTION Encryption Method Select 802.1X to configure authentication of wireless stations and encryption key management. Note: WPA, WPA2 and IEEE 802.1x wireless security are not available when you use Bridge or AP+Repeater mode.

  • Page 85: Mac Filter

    ZyXEL G-570U User’s Guide 6.15 MAC Filter The MAC filter screen allows you to give exclusive access to up to 32 devices (Allow Association) or exclude up to 32 devices from accessing the device (Deny Association). 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:C5:00:00:02.

  • Page 86: Figure 52 Mac Filter

    ZyXEL G-570U User’s Guide Figure 52 MAC Filter The following table describes the labels in this screen. Table 22 MAC Filter LABEL DESCRIPTION Active Select the check box to enable MAC address filtering and define the filter action for the list of MAC addresses in the MAC address filter table.

  • Page 87: Otist

    You can also choose to have OTIST generate a WPA-PSK key for you if you didn’t configure one manually. Note: OTIST replaces the pre-configured wireless settings on the wireless clients. 6.16.1 Enabling OTIST: G-570U in AP Mode You must enable OTIST on both the AP and wireless client before you start transferring settings.

  • Page 88: Wireless Client

    Figure 54 Example Wireless Client OTIST Screen 6.16.1.3 G-570U in Wireless Client Mode If you are using the G-570U in Wireless Client mode, you can enable OTIST using either the OTIST button or the web configurator. Chapter 6 Wireless Screens...

  • Page 89: 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 G-570U to wireless client mode and start OTIST. 6.16.1.3.2 Wireless Client Mode: Web Configurator Start the web configurator and click Wireless.

  • Page 90: Notes On Otist

    • 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 59 No AP with OTIST Found • If there is more than one OTIST-enabled AP within range, you see a screen asking you to select one AP to get settings from.

  • Page 91: Figure 60 Start Otist

    ZyXEL G-570U User’s Guide Figure 60 Start OTIST? 2 If an OTIST-enabled wireless client loses its wireless connection for more than ten seconds, it will search for an OTIST-enabled AP for up to one minute. (If you manually have the wireless client search for an OTIST-enabled AP, there is no timeout; click Cancel in the OTIST progress screen to stop the search.)
  • Page 92 ZyXEL G-570U User’s Guide Chapter 6 Wireless Screens...

  • Page 93: Chapter 7 Management Screens

    ZyXEL G-570U User’s Guide H A P T E R Management Screens This chapter describes the Maintenance screens. 7.1 Maintenance Overview Use these maintenance screens to change the password, view logs, back up or restore the G- 570U configuration and change the web configurator language.

  • Page 94: Logs

    ZyXEL G-570U User’s Guide Table 24 Management: Password (continued) LABEL DESCRIPTION Apply Click Apply to save your changes back to the device. Reset Click Reset to clear all fields in this screen. 7.3 Logs Click Management > Logs to open the Logs screen.

  • Page 95: 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 96: Restore Configuration

    ZyXEL G-570U User’s Guide Click Backup to save the device's current configuration to your computer. 7.4.2 Restore Configuration Restore configuration allows you to upload a new or previously saved configuration file from your computer to your device. Table 26 Management: Configuration File: Restore Configuration...

  • Page 97: Back To Factory Defaults

    (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 98: Figure 69 Firmware Upgrading Screen

    ZyXEL G-570U User’s Guide The following table describes the labels in this screen. Table 27 Management: F/W Upload LABEL DESCRIPTION File Path Type in the location of the file you want to upload in this field or click Browse ... to find it.

  • Page 99: Chapter 8 Troubleshooting

    If the problem persists, you may have a hardware problem. In this case, you should adapter. contact your local vendor. The G-570U The supplied power to the G-570U is too low. Check that the G-570U is receiving reboots enough power. automatically Make sure the power source is working properly.

  • Page 100: Problems With The Wlan Interface

    When OTIST is complete, the A and G LEDs flash simultaneously while the G- OTIST, but cannot 570U tries to connect to an AP. If the LEDs continue to flash, the G-570U has connect to an access not made a connection.

  • Page 101: Pop-Up Windows, Javascripts And Java Permissions

    LAN access. If you changed the G-570U’s IP address, then enter the new one as the URL. If you don’t know the G-570U’s IP address, type the device name of your G- 570U as the URL. ZyXELXXXX is the default where “XXXX” is the last four digits of the MAC address.

  • Page 102: Figure 72 Pop-Up Blocker

    ZyXEL G-570U User’s Guide 8.4.1.1.1 Disable pop-up Blockers 1 In Internet Explorer, select Tools, Pop-up Blocker and then select Turn Off Pop-up Blocker. Figure 72 Pop-up Blocker You can also check if pop-up blocking is disabled in the Pop-up Blocker section in the Privacy tab.

  • Page 103: Figure 74 Internet Options

    ZyXEL G-570U User’s Guide 8.4.1.1.2 Enable pop-up Blockers with Exceptions 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.

  • Page 104: Javascripts

    ZyXEL G-570U User’s Guide Figure 75 Pop-up Blocker Settings 5 Click Close to return to the Privacy screen. 6 Click Apply to save this setting. 8.4.1.2 JavaScripts If pages of the web configurator do not display properly in Internet Explorer, check that JavaScripts are allowed.

  • Page 105: Figure 76 Internet Options

    ZyXEL G-570U User’s Guide Figure 76 Internet Options 2 Click the Custom Level... button. 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).

  • Page 106: Java Permissions

    ZyXEL G-570U User’s Guide Figure 77 Security Settings - Java Scripting 8.4.1.3 Java Permissions 1 From Internet Explorer, click Tools, Internet Options and then the Security tab. 2 Click the Custom Level... button. 3 Scroll down to Microsoft VM. 4 Under Java permissions make sure that a safety level is selected.

  • Page 107: Figure 78 Security Settings - Java

    ZyXEL G-570U User’s Guide Figure 78 Security Settings - Java 8.4.1.3.1 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.

  • Page 108: Testing The Connection To The G-570U

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 10ms, Average = Your computer can now communicate with the G-570U via the ETHERNET port. Chapter 8 Troubleshooting...

  • Page 109: Product Specifications

    ZyXEL G-570U User’s Guide P P E N D I X Product Specifications See also the introduction chapter for a general overview of the key features. Specification Tables Table 32 Device Specifications Default IP Address 192.168.1.2 Default Subnet Mask 255.255.255.0 (24 bits)

  • Page 110: Table 34 Wireless Rf Specifications

    ZyXEL G-570U User’s Guide Table 33 Feature Specifications (continued) Operating Modes Access Point Client Bridge Access Point and Repeater Wireless Links 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 111: Table 35 Approvals

    ZyXEL G-570U User’s Guide Table 34 Wireless RF Specifications Security Wired Equivalent Privacy (WEP) data encryption Dynamic WEP key exchange WiFi Protected Access (WPA) IEEE 802.1x RF frequency range 2.412~2.462GHz: North America 2.412MHz~2.472 GHz: Japan 2.412-2.472 GHz: Europe ETSI 5.15 - 5.25 GHz 5.25 - 5.35 GHz...

  • Page 112: Table 36 Power Adapter Specifications

    ZyXEL G-570U User’s Guide Table 35 Approvals (continued) EN61000-4-2 ELECTROSTATIC DISCHARGE EN61000-4-3 RADIO-FREQUENCY ELECTROMAGNETIC FIELD EN61000-4-4 EFT/BURST EN61000-4-5 SURGE EN61000-4-6 CONDUCTED SUSCEPTIBILITY EN61000-4-8 POWER MAGNETIC EN61000-4-11 VOLTAGE DIPS/ INTERRUPTION ENV50204 EM FIELD FROM DIGITAL TELEPHONES SmartBit LAN COMPATIBILITY FCC Part15C, Sec15.247...
  • Page 113 ZyXEL G-570U User’s Guide Table 36 Power Adapter Specifications (continued) AC Power Adapter Model AD-121A Input Power 120 Volts AC 60Hz Output Power 12 Volts DC ±5%, 1 Amp Power Consumption 12 Watts Safety Standards UK PLUG STANDARDS AC Power Adapter Model...
  • Page 114 ZyXEL G-570U User’s Guide Appendix A Product Specifications...

  • Page 115: 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 G-570U’s LAN port. Windows 95/98/Me Click Start, Settings, Control Panel and double-click the Network icon to open the Network window.

  • Page 116: Figure 81 Windows 95/98/Me: Network: Configuration

    ZyXEL G-570U User’s Guide Figure 81 WIndows 95/98/Me: Network: Configuration Installing Components The Network window Configuration tab displays a list of installed components. You need a network adapter, the TCP/IP protocol and Client for Microsoft Networks. If you need the adapter: 1 In the Network window, click Add.

  • Page 117: Figure 82 Windows 95/98/Me: Tcp/Ip Properties: Ip Address

    ZyXEL G-570U User’s Guide 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. Configuring 1 In the Network window Configuration tab, select your network adapter's TCP/IP entry and click Properties 2 Click the IP Address tab.

  • Page 118: Figure 83 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 G-570U and restart your computer when prompted. Verifying Settings 1 Click Start and then Run.

  • Page 119: Figure 84 Windows Xp: Start Menu

    ZyXEL G-570U User’s Guide Figure 84 Windows XP: Start Menu 2 In the Control Panel, double-click Network Connections (Network and Dial-up Connections in Windows 2000/NT). Figure 85 Windows XP: Control Panel 3 Right-click Local Area Connection and then click Properties.

  • Page 120: Figure 86 Windows Xp: Control Panel: Network Connections: Properties

    ZyXEL G-570U User’s Guide Figure 86 Windows XP: Control Panel: Network Connections: Properties 4 Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and then click Properties. Figure 87 Windows XP: Local Area Connection Properties 5 The Internet Protocol TCP/IP Properties window opens (the General tab in Windows XP).

  • Page 121: Figure 88 Windows Xp: Internet Protocol (Tcp/Ip) Properties

    ZyXEL G-570U User’s Guide • 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. Figure 88 Windows XP: Internet Protocol (TCP/IP) Properties 6 If you do not know your gateway's IP address, remove any previously installed gateways in the IP Settings tab and click OK.

  • Page 122: Figure 89 Windows Xp: Advanced Tcp/Ip Properties

    ZyXEL G-570U User’s Guide Figure 89 Windows XP: Advanced TCP/IP Properties 7 In the Internet Protocol TCP/IP Properties window (the General tab in Windows XP): • Click Obtain DNS server address automatically if you do not know your DNS server IP address(es).

  • Page 123: Figure 90 Windows Xp: Internet Protocol (Tcp/Ip) Properties

    10 Close the Network Connections window (Network and Dial-up Connections in Windows 2000/NT). 11Turn on your G-570U 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 124: Figure 91 Macintosh Os 8/9: Apple Menu

    ZyXEL G-570U User’s Guide Figure 91 Macintosh OS 8/9: Apple Menu 2 Select Ethernet built-in from the Connect via list. Figure 92 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:...

  • Page 125: Figure 93 Macintosh Os X: Apple Menu

    • Type your subnet mask in the Subnet mask box. • Type the IP address of your G-570U in the Router address box. 5 Close the TCP/IP Control Panel. 6 Click Save if prompted, to save changes to your configuration.

  • Page 126: Figure 94 Macintosh Os X: Network

    Type your subnet mask in the Subnet mask box. • Type the IP address of your G-570U in the Router address box. 5 Click Apply Now and close the window. 6 Turn on your G-570U and restart your computer (if prompted).

  • Page 127: Figure 95 Red Hat 9.0: Kde: Network Configuration: Devices

    ZyXEL G-570U User’s Guide Note: Make sure you are logged in as the root administrator. Using the K Desktop Environment (KDE) Follow the steps below to configure your computer IP address using the KDE. 1 Click the Red Hat button (located on the bottom left corner), select System Setting and click Network.

  • Page 128: Figure 97 Red Hat 9.0: Kde: Network Configuration: Dns

    ZyXEL G-570U User’s Guide • If you have a static IP address, click Statically set IP Addresses and fill in the Address, Subnet mask, and Default Gateway Address fields. 3 Click OK to save the changes and close the Ethernet Device General screen.

  • Page 129: Figure 99 Red Hat 9.0: Dynamic Ip Address Setting In Ifconfig-Eth0

    ZyXEL G-570U User’s Guide • If you have a dynamic IP address, enter in the dhcp BOOTPROTO= field. The following figure shows an example. Figure 99 Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0 DEVICE=eth0 ONBOOT=yes BOOTPROTO=dhcp USERCTL=no PEERDNS=yes TYPE=Ethernet •...

  • Page 130: Figure 102 Red Hat 9.0: Restart Ethernet Card

    ZyXEL G-570U User’s Guide Figure 102 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]...

  • Page 131: Appendix C Wireless Lans

    ZyXEL G-570U User’s Guide P P E N D I X Wireless LANs Wireless LAN Topologies This section discusses ad-hoc and infrastructure wireless LAN topologies. Ad-hoc Wireless LAN Configuration The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of computers with wireless stations (A, B, C).

  • Page 132: Figure 105 Basic Service Set

    ZyXEL G-570U User’s Guide Figure 105 Basic Service Set 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 133: Figure 106 Infrastructure Wlan

    ZyXEL G-570U User’s Guide Figure 106 Infrastructure WLAN Channel A channel is the radio frequency(ies) used by IEEE 802.11a/b/g 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 134: Figure 107 Rts/Cts

    ZyXEL G-570U User’s Guide Figure 107 RTS/CTS 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.

  • Page 135: Table 37 Ieee 802.11G

    ZyXEL G-570U User’s Guide 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. If the Fragmentation Threshold value is smaller than the RTS/CTS value (see previously) you set then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size.
  • Page 136 ZyXEL G-570U User’s Guide • Authentication Determines the identity of the users. • Authorization Determines the network services available to authenticated users once they are connected to the network. • Accounting Keeps track of the client’s network activity. RADIUS is a simple package exchange in which your AP acts as a message relay between the wireless station and the network RADIUS server.

  • Page 137: Figure 108 Eap Authentication

    ZyXEL G-570U User’s Guide EAP Authentication EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE802.1x transport mechanism in order to support multiple types of user authentication. By using EAP to interact with an EAP-compatible RADIUS server, the access point helps a wireless station and a RADIUS server perform authentication.

  • Page 138: Wep Encryption

    ZyXEL G-570U User’s Guide However, MD5 authentication has some weaknesses. Since the authentication server needs to get the plaintext passwords, the passwords must be stored. Thus someone other than the authentication server may access the password file. In addition, it is possible to impersonate an authentication server as MD5 authentication method does not perform mutual authentication.

  • Page 139: Figure 109 Wep Authentication Steps

    ZyXEL G-570U User’s Guide WEP Authentication Steps Three different methods can be used to authenticate wireless stations to the network: Open System, Shared Key, and Auto. The following figure illustrates the steps involved. Figure 109 WEP Authentication Steps Open system authentication involves an unencrypted two-message procedure. A wireless station sends an open system authentication request to the AP, which will then automatically accept and connect the wireless station to the network.

  • Page 140: Table 38 Comparison Of Eap Authentication Types

    ZyXEL G-570U User’s Guide Dynamic WEP Key Exchange The AP maps a unique key that is generated with the RADIUS server. This key expires when the wireless connection times out, disconnects or reauthentication times out. A new WEP key is generated each time reauthentication is performed.
  • Page 141 ZyXEL G-570U User’s Guide TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication server. It includes a per-packet key mixing function, a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism.

  • Page 142: Figure 110 Roaming Example

    ZyXEL G-570U User’s Guide If the roaming feature is not enabled on the access points, information is not communicated between the access points when a wireless station moves between coverage areas. The wireless station may not be able to communicate with other wireless stations on the network and vice versa.
  • Page 143 ZyXEL G-570U User’s Guide 5 The access points must be connected to the Ethernet and be able to get IP addresses from a DHCP server if using dynamic IP address assignment. Appendix C Wireless LANs...
  • Page 144 ZyXEL G-570U User’s Guide Appendix C Wireless LANs...

  • Page 145: Appendix Dip Subnetting

    ZyXEL G-570U User’s Guide P P E N D I X IP Subnetting This appendix introduces IP addresses, IP address classes and subnet masks. You use subnet masks to subdivide a network into smaller logical networks. Introduction to IP Addresses An IP address has two parts: the network number and the host ID.

  • Page 146: Table 39 Classes Of Ip Addresses

    ZyXEL G-570U User’s Guide The following table shows the network number and host ID arrangement for classes A, B and Table 39 Classes of IP Addresses IP ADDRESS OCTET 1 OCTET 2 OCTET 3 OCTET 4 Class A Network number...

  • Page 147: Table 41 "Natural" Masks

    ZyXEL G-570U User’s Guide Subnet Masks A subnet mask is used to determine which bits are part of the network number, and which bits are part of the host ID (using a logical AND operation). A subnet mask has 32 bits. If a bit in the subnet mask is a “1” then the corresponding bit in the IP address is part of the network number.

  • Page 148: Table 43 Two Subnets Example

    ZyXEL G-570U User’s Guide Table 42 Alternative Subnet Mask Notation (continued) SUBNET MASK SUBNET MASK “1” BITS LAST OCTET BIT VALUE DECIMAL 255.255.255.240 1111 0000 255.255.255.248 1111 1000 255.255.255.252 1111 1100 The first mask shown is the class “C” natural mask. Normally if no mask is specified it is understood that the natural mask is being used.

  • Page 149: Table 44 Subnet 1

    ZyXEL G-570U User’s Guide Table 44 Subnet 1 (continued) LAST OCTET BIT IP/SUBNET MASK NETWORK NUMBER VALUE Subnet Address: 192.168.1.0 Lowest Host ID: 192.168.1.1 Broadcast Address: Highest Host ID: 192.168.1.126 192.168.1.127 Table 45 Subnet 2 IP/SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192.168.1.

  • Page 150: Table 47 Subnet 2

    ZyXEL G-570U User’s Guide Table 46 Subnet 1 (continued) LAST OCTET BIT IP/SUBNET MASK NETWORK NUMBER VALUE Subnet Address: 192.168.1.0 Lowest Host ID: 192.168.1.1 Broadcast Address: Highest Host ID: 192.168.1.62 192.168.1.63 Table 47 Subnet 2 LAST OCTET BIT IP/SUBNET MASK...

  • Page 151: Table 50 Eight Subnets

    ZyXEL G-570U User’s Guide The following table shows class C IP address last octet values for each subnet. Table 50 Eight Subnets BROADCAST SUBNET SUBNET ADDRESS FIRST ADDRESS LAST ADDRESS ADDRESS The following table is a summary for class “C” subnet planning.

  • Page 152: Table 52 Class B Subnet Planning

    ZyXEL G-570U User’s Guide The following table is a summary for class “B” subnet planning. Table 52 Class B Subnet Planning NO. “BORROWED” HOST NO. HOSTS PER SUBNET MASK NO. SUBNETS BITS SUBNET 255.255.128.0 (/17) 32766 255.255.192.0 (/18) 16382 255.255.224.0 (/19) 8190 255.255.240.0 (/20)

  • Page 153: Open Software Announcements

    No part may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, except the express written permission of ZyXEL Communications Corporation. This product include eCos redboot under eCose License (GPL-compatible).

  • Page 154: Gnu General Public License

    ZyXEL G-570U User’s Guide on the modified code, either by including the sources along with the binaries you deliver (or with any device containing such binaries) or with a written offer to supply the source code to the general public for three years. It is perhaps most practical for eCos developers to make the source code available online and inform those who are receiving binaries containing eCos code, and probably also the eCos maintainers, about the location of the code.
  • Page 155 ZyXEL G-570U User’s Guide To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have.
  • Page 156 ZyXEL G-570U User’s Guide b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License.
  • Page 157 ZyXEL G-570U User’s Guide the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code.
  • Page 158 CONDITIONS. All other trademarks or trade names mentioned herein, if any, are the property of their respective owners. NOTE: Some components of the "ZyXEL G-570U "software incorporate source code covered under the eCos License and GPL License. To obtain the source code covered under those Licenses, please contact ZyXEL Communications Corporation at: support@zyxel.com.tw...

  • Page 159: Index

    ZyXEL G-570U User’s Guide Index Channel ID 62, 67, 69 Clear to Send see CTS Access Point Client Connections see AP Connection Address Assignment Clients Ad-hoc Testing Advanced Encryption Standard Contact information see AES Copyright Coverage Alternative subnet mask notation...
  • Page 160 ZyXEL G-570U User’s Guide see IV Internet Access IP Address 31, 53 25, 71, 75, 77 IP Address, Default Authentication Encryption 25, 76, 140 58, 132 ESSID Ethernet 24, 30, 31 Cables Ports Java Permissions European Plug Standards JavaScripts Extended Service Set...
  • Page 161 ZyXEL G-570U User’s Guide North American Plug Standards Request To Send see RTS Reset 24, 30, 35 Restart 30, 35 Restore Defaults 110, 111 One-Touch Intelligent Security Technology RJ-45 see OTIST Roaming 109, 141 Open System Example Requirements Operating Modes...
  • Page 162 ZyXEL G-570U User’s Guide Wireless Specifications Wizard WLAN TCP/IP Interference Temperature 23, 25, 76 Temporal Key Integrity Protocol WPA with RADIUS Application see TKIP WPA2 25, 76 Testing MAC Filter TKIP WPA-PSK Tools, Diagnostic Application Tracing Trademarks Troubleshooting Ethernet Interface...

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