ZyXEL Communications MAX207HW2 WiMAX MIMO 2.5GHz Indoor Multiple-user CPE User Manual Quick Start Guide

ZyXEL Communications Corporation WiMAX MIMO 2.5GHz Indoor Multiple-user CPE Quick Start Guide

Contents

Manual 1

www.zyxel.comwww.zyxel.comMAX-207HW2WiMAX MIMO Indoor Simple CPE (2.5 GHz)Copyright © 2009 ZyXEL Communications CorporationFirmware Version 1.0Edition 1, 6/2009Default Login DetailsIP Address http://192.168.1.1AdminName and Password@dmin284wj/6User Name andPasswordUseruser中文名稱:WiMAX 802.16e 2.5GHz 無線寬頻路由器
  About This User's GuideUser’s Guide 3About This User's GuideIntended AudienceThis manual is intended for people who want to configure the ZyXEL WiMAX Modem using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology.Related Documentation•Quick Start Guide The Quick Start Guide is designed to help you get up and running right away. It contains information on setting up your network and configuring for Internet access.• Web Configurator Online HelpEmbedded web help for descriptions of individual screens and supplementary information.• Command Reference GuideThe Command Reference Guide explains how to use the Command-Line Interface (CLI) and CLI commands to configure the WiMAX Modem.Note: It is recommended you use the web configurator to configure the WiMAX Modem.• Support DiscRefer to the included CD for support documents.• ZyXEL Web SitePlease refer to www.zyxel.com for additional support documentation and product certifications.Documentation FeedbackSend your comments, questions or suggestions to: techwriters@zyxel.com.twThank you!The Technical Writing Team, ZyXEL Communications Corp.,6 Innovation Road II,  Science-Based Industrial Park, Hsinchu, 30099, Taiwan.
About This User's GuideUser’s Guide4Need More Help?More help is available at www.zyxel.com. • Download LibrarySearch for the latest product updates and documentation from this link. Read the Tech Doc Overview to find out how to efficiently use the User Guide, Quick Start Guide and Command Line Interface Reference Guide in order to better understand how to use your product. • Knowledge BaseIf you have a specific question about your product, the answer may be here. This is a collection of answers to previously asked questions about ZyXEL products. •ForumThis contains discussions on ZyXEL products. Learn from others who use ZyXEL products and share your experiences as well.Customer SupportShould problems arise that cannot be solved by the methods listed above, you should contact your vendor. If you cannot contact your vendor, then contact a ZyXEL office for the region in which you bought the device. See http://www.zyxel.com/web/contact_us.php for contact information. Please have the following information ready when you contact an office.• 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.
 Document ConventionsUser’s Guide 5Document ConventionsWarnings and NotesThese are how warnings and notes are shown in this User’s Guide. Warnings tell you about things that could harm you or your WiMAX Modem.Note: Notes tell you other important information (for example, other things you may need to configure or helpful tips) or recommendations.Syntax Conventions• The MAX-207HW2 may be referred to as the “WiMAX Modem”, 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.• A key stroke is denoted by square brackets and uppercase text, for example, [ENTER] means the “enter” or “return” key on your keyboard.• “Enter” means for you to type one or more characters and then press the [ENTER] key. “Select” or “choose” means for you to use one of the predefined choices.• A right angle bracket ( > ) within a screen name denotes a mouse click. For example, TOOLS > Logs > Log Settings means you first click Tools in the navigation panel, then the Logs sub menu and finally the Log Settings tab to get to that screen.• Units of measurement may denote the “metric” value or the “scientific” value. For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may denote “1000000” or “1048576” and so on.• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.
Document ConventionsUser’s Guide6Icons Used in FiguresFigures in this User’s Guide may use the following generic icons. The WiMAX Modem icon is not an exact representation of your WiMAX Modem.\Table 1   Common IconsWiMAX Device WiMAX Access Point ComputerNotebook Server WiMAX Base StationTelephone Switch RouterInternet Cloud Internet/WiMAX Cloud Wireless Signal
 Safety WarningsUser’s Guide 7Safety Warnings• 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.• Do NOT store things on the device.• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning.• Connect ONLY suitable accessories to the device.• Do NOT open the device or unit. Opening or removing covers can expose you to dangerous high voltage points or other risks. ONLY qualified service personnel should service or disassemble this device. Please contact your vendor for further information.• Make sure to connect the cables to the correct ports.• Place connecting cables carefully so that no one will step on them or stumble over them.• Always disconnect all cables from this device before servicing or disassembling.• Use ONLY an appropriate power adaptor or cord for your device. Connect it to the right supply voltage (for example, 110V AC in North America or 230V AC in Europe).• Do NOT remove the plug and connect it to a power outlet by itself; always attach the plug to the power adaptor first before connecting it to a power outlet.• Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone can walk on the power adaptor or cord.• Do NOT use the device if the power adaptor or cord is damaged as it might cause electrocution.• If the power adaptor or cord is damaged, remove it from the device and the power source.• Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a new one.Do not use the device outside, and make sure all the connections are indoors. There is a remote risk of electric shock from lightning.• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your device.Use only No. 26 AWG (American Wire Gauge) or larger telecommunication line cord.• Antenna Warning! This device meets ETSI and FCC certification requirements when using the included antenna(s). 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.• Make sure that the cable system is grounded so as to provide some protection against voltage surges.Your product is marked with this symbol, which is known as the WEEE mark. WEEE stands for Waste Electronics and Electrical Equipment. It means that used electrical and electronic products should not be mixed with general waste. Used electrical and electronic equipment should be treated separately.
Safety WarningsUser’s Guide8
 Contents OverviewUser’s Guide 9Contents OverviewIntroduction and Wizards ......................................................................................................17Getting Started ........................................................................................................................... 19Introducing the Web Configurator .............................................................................................. 23Basic Screens  ........................................................................................................................29The Setup Screens .................................................................................................................... 31Advanced Screens .................................................................................................................39The Status Screen  ..................................................................................................................... 41The LAN Configuration Screens ................................................................................................ 45The WIFI Configuration Screen  ................................................................................................. 59The WAN Configuration Screens ............................................................................................... 77The NAT Configuration Screens ................................................................................................ 89The System Configuration Screens ........................................................................................... 99Voice Screens .......................................................................................................................107The Service Configuration Screens ......................................................................................... 109The Phone Screens ................................................................................................................. 127The Phone Book Screens ........................................................................................................ 137Tools & Status Screens  .......................................................................................................143The Certificates Screens  ......................................................................................................... 145The Remote Management Screens ......................................................................................... 149The Password Setup Screen ................................................................................................... 161The Status Screen  ................................................................................................................... 163Troubleshooting and Specifications ..................................................................................167Troubleshooting ....................................................................................................................... 169Product Specifications  ............................................................................................................. 177Appendices and Index .........................................................................................................185
Contents OverviewUser’s Guide10
  Table of ContentsUser’s Guide 11Table of ContentsAbout This User's Guide..........................................................................................................3Document Conventions............................................................................................................5Safety Warnings........................................................................................................................7Contents Overview ...................................................................................................................9Table of Contents....................................................................................................................11Part I: Introduction and Wizards........................................................... 17Chapter  1Getting Started ........................................................................................................................191.1 About Your WiMAX Modem ................................................................................................. 191.1.1 WiMAX Internet Access  ............................................................................................. 191.1.2 Make Calls via Internet Telephony Service Provider .................................................. 201.2 WiMAX Modem Hardware ................................................................................................... 211.2.1 LEDs  .......................................................................................................................... 211.3 Good Habits for Managing the WiMAX Modem ................................................................... 22Chapter  2Introducing the Web Configurator ........................................................................................232.1 Overview .............................................................................................................................. 232.1.1 Accessing the Web Configurator ................................................................................ 232.1.2 The Reset Button  ....................................................................................................... 242.2 The Main Screen  ................................................................................................................. 25Part II: Basic Screens ............................................................................ 29Chapter  3The Setup Screens..................................................................................................................313.1 Overview .............................................................................................................................. 313.1.1 What You Can Do in This Chapter  ............................................................................. 313.1.2 What You Need to Know ............................................................................................ 313.1.3 Before You Begin  ....................................................................................................... 323.2 Set IP Address (LAN 設定 ) ................................................................................................. 32
Table of ContentsUser’s Guide123.3 DHCP Client (DHCP 用戶端 ) .............................................................................................. 333.4 Time Setting ( 時間設定 ) ..................................................................................................... 353.4.1 Pre-Defined NTP Time Servers List ........................................................................... 363.4.2 Resetting the Time ..................................................................................................... 37Part III: Advanced Screens.................................................................... 39Chapter  4The Status Screen...................................................................................................................414.1 Overview .............................................................................................................................. 414.2 Status ( 狀態 ) Screen .......................................................................................................... 41Chapter  5The LAN Configuration Screens............................................................................................455.1 Overview .............................................................................................................................. 455.1.1 What You Can Do in This Chapter  ............................................................................. 455.1.2 What You Need to Know ............................................................................................ 455.2 DHCP Setup  ........................................................................................................................ 465.3 Static DHCP ......................................................................................................................... 475.4 IP Alias  ................................................................................................................................ 495.5 IP Static Route ..................................................................................................................... 515.5.1 IP Static Route Setup ................................................................................................. 525.6 Other Settings ...................................................................................................................... 535.7 Technical Reference  ............................................................................................................ 545.7.1 IP Address and Subnet Mask ..................................................................................... 545.7.2 DHCP Setup ...............................................................................................................555.7.3 LAN TCP/IP ................................................................................................................ 555.7.4 DNS Server Address .................................................................................................. 555.7.5 RIP Setup ................................................................................................................... 565.7.6 Multicast ..................................................................................................................... 57Chapter  6The WIFI Configuration Screen .............................................................................................596.1 Overview .............................................................................................................................. 596.1.1 What You Can Do in the WIFI Screens ...................................................................... 596.1.2 What You Need to Know About WIFI ......................................................................... 606.1.3 Before You Start  .........................................................................................................636.2 General Screen   .................................................................................................................. 636.2.1 No Security ................................................................................................................. 656.2.2 WEP Encryption ......................................................................................................... 666.2.3 WPA(2)-PSK  .............................................................................................................. 66
  Table of ContentsUser’s Guide 136.2.4 Wireless LAN Advanced Setup  ................................................................................. 686.3 MAC Filter      ....................................................................................................................... 696.4 Wireless LAN Technical Reference  ..................................................................................... 706.4.1 Additional Wireless Terms .......................................................................................... 716.4.2 Wireless Security Overview  ....................................................................................... 716.4.3 MBSSID  ..................................................................................................................... 736.4.4 Wireless Distribution System (WDS) .......................................................................... 746.4.5 WiFi Protected Setup  ................................................................................................. 74Chapter  7The WAN Configuration Screens...........................................................................................777.1 Overview .............................................................................................................................. 777.1.1 What You Can Do in This Chapter  ............................................................................. 777.1.2 What You Need to Know ............................................................................................ 777.2 Internet Connection  ............................................................................................................. 797.3 WiMAX Configuration  .......................................................................................................... 827.3.1 Frequency Ranges ..................................................................................................... 857.3.2 Configuring Frequency Settings ................................................................................. 857.3.3 Using the WiMAX Frequency Screen ......................................................................... 86Chapter  8The NAT Configuration Screens............................................................................................898.1 Overview .............................................................................................................................. 898.1.1 What You Can Do in This Chapter  ............................................................................. 898.2 General ................................................................................................................................ 908.3 Port Forwarding  .................................................................................................................. 918.3.1 Port Forwarding Options  ............................................................................................ 918.3.2 Port Forwarding Rule Setup ....................................................................................... 938.4 Trigger Port .......................................................................................................................... 948.4.1 Trigger Port Forwarding Example  .............................................................................. 96Chapter  9The System Configuration Screens ......................................................................................999.1 Overview .............................................................................................................................. 999.1.1 What You Can Do in This Chapter  ............................................................................. 999.1.2 What You Need to Know ............................................................................................ 999.2 Dynamic DNS  .................................................................................................................... 1009.3 Firmware ............................................................................................................................ 1029.3.1 The Firmware Upload Process ................................................................................. 1039.4 Configuration  ..................................................................................................................... 1049.4.1 The Restore Configuration Process ......................................................................... 1059.5 Restart  ............................................................................................................................... 1059.5.1 The Restart Process  ................................................................................................ 106
Table of ContentsUser’s Guide14Part IV: Voice Screens ......................................................................... 107Chapter  10The Service Configuration Screens ....................................................................................10910.1 Overview .......................................................................................................................... 10910.1.1 What You Can Do in This Chapter  ......................................................................... 10910.1.2 What You Need to Know ........................................................................................ 10910.1.3 Before you Begin .....................................................................................................11110.2 SIP Settings ......................................................................................................................11110.2.1 Advanced SIP Settings  ...........................................................................................11210.3 QoS  ..................................................................................................................................11910.4 Technical Reference ........................................................................................................ 12110.4.1 SIP Call Progression .............................................................................................. 12110.4.2 SIP Client Server .................................................................................................... 12210.4.3 SIP User Agent  ...................................................................................................... 12210.4.4 SIP Proxy Server .................................................................................................... 12210.4.5 SIP Redirect Server  ............................................................................................... 12310.4.6 NAT and SIP  .......................................................................................................... 12410.4.7 DiffServ  .................................................................................................................. 12410.4.8 DSCP and Per-Hop Behavior ................................................................................. 125Chapter  11The Phone Screens...............................................................................................................12711.1 Overview .......................................................................................................................... 12711.1.1 What You Can Do in This Chapter  ......................................................................... 12711.1.2 What You Need to Know  ........................................................................................ 12711.2 Analog Phone  .................................................................................................................. 12811.2.1 Advanced Analog Phone Setup ............................................................................. 12911.3 Common  .......................................................................................................................... 13011.4 Region .............................................................................................................................. 13111.5 Technical Reference  ........................................................................................................ 13211.5.1 The Flash Key  ........................................................................................................ 13211.5.2 Europe Type Supplementary Phone Services ........................................................ 13311.5.3 USA Type Supplementary Services  ....................................................................... 134Chapter  12The Phone Book Screens.....................................................................................................13712.1 Overview .......................................................................................................................... 13712.1.1 What You Can Do in This Chapter  ......................................................................... 13712.1.2 What You Need to Know ........................................................................................ 13712.2 Incoming Call Policy  ........................................................................................................ 13812.3 Speed Dial  ....................................................................................................................... 14012.3.1 Speed Dial Setup  ................................................................................................... 141
  Table of ContentsUser’s Guide 15Part V: Tools & Status Screens........................................................... 143Chapter  13The Certificates Screens......................................................................................................14513.1 Overview .......................................................................................................................... 14513.1.1 What You Can Do in This Chapter  ......................................................................... 14513.1.2 What You Need to Know ........................................................................................ 14513.2 My Certificates ................................................................................................................. 14613.3 Trusted CAs ..................................................................................................................... 146Chapter  14The Remote Management Screens .....................................................................................14914.1 Overview .......................................................................................................................... 14914.1.1 What You Can Do in This Chapter  ......................................................................... 14914.1.2 What You Need to Know ........................................................................................ 15014.2 WWW  .............................................................................................................................. 15114.3 Telnet  ............................................................................................................................... 15214.4 FTP .................................................................................................................................. 15314.5 SNMP  .............................................................................................................................. 15414.5.1 SNMP Traps ........................................................................................................... 15514.5.2 SNMP Options  ....................................................................................................... 15614.6 DNS  ................................................................................................................................. 15714.7 Security ............................................................................................................................ 158Chapter  15The Password Setup Screen................................................................................................16115.1 Overview .......................................................................................................................... 16115.2 Password Setup .............................................................................................................. 161Chapter  16The Status Screen.................................................................................................................16316.1 Overview .......................................................................................................................... 16316.2 Status Screen  .................................................................................................................. 163Part VI: Troubleshooting and Specifications .................................... 167Chapter  17Troubleshooting....................................................................................................................16917.1 Power, Hardware Connections, and LEDs  ...................................................................... 16917.2 WiMAX Modem Access and Login  .................................................................................. 17017.3 Internet Access ................................................................................................................ 172
Table of ContentsUser’s Guide1617.4 Phone Calls and VoIP ......................................................................................................17417.5 Reset the WiMAX Modem to Its Factory Defaults  ........................................................... 17517.5.1 Pop-up Windows, JavaScripts and Java Permissions  ........................................... 175Chapter  18Product Specifications.........................................................................................................177Part VII: Appendices and Index .......................................................... 185Appendix  A  WiMAX Security ................................................................................................187Appendix  B  Setting Up Your Computer’s IP Address...........................................................191Appendix  C  Pop-up Windows, JavaScripts and Java Permissions......................................219Appendix  D  IP Addresses and Subnetting ...........................................................................229Appendix  E  Importing Certificates ........................................................................................241Appendix  F  SIP Passthrough ...............................................................................................273Appendix  G  Common Services ............................................................................................275Appendix  H  Legal Information..............................................................................................279Index.......................................................................................................................................283
17PART IIntroduction and WizardsGetting Started  (19)Introducing the Web Configurator  (23)
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User’s Guide 19CHAPTER  1 Getting Started1.1  About Your WiMAX Modem The WiMAX Modem has a built-in switch and one phone port. It allows you to access the Internet by connecting to a WiMAX wireless network. You can use a traditional analog telephone to make Internet calls using the WiMAX Modem’s Voice over IP (VoIP) communication capabilities. You can configure firewall and content filtering as well as a host of other features. The web browser-based Graphical User Interface (GUI), also known as the web configurator, provides easy management.See Chapter 18 on page 177 for a complete list of features for your model.1.1.1  WiMAX Internet AccessConnect your computer or network to the WiMAX Modem for WiMAX Internet access. See the Quick Start Guide for instructions on hardware connection.In a wireless metropolitan area network (MAN), the WiMAX Modem connects to a WiMAX base station (BS) for Internet access. The following diagram shows a notebook computer equipped with the WiMAX Modem connecting to the Internet through a WiMAX base station (marked BS).Figure 1   Mobile Station and Base StationWhen the firewall is on, all incoming traffic from the Internet to your network is blocked unless it is initiated from your network.
Chapter 1 Getting StartedUser’s Guide20Use content filtering to block access to web sites with URLs containing keywords that you specify. You can define time periods and days during which content filtering is enabled and include or exclude particular computers on your network from content filtering. For example, you could block access to certain web sites for the kids.1.1.2  Make Calls via Internet Telephony Service ProviderIn a home or small office environment, you can use the WiMAX Modem to make and receive the following types of VoIP telephone calls:• Peer-to-Peer calls - Use the WiMAX Modem to make a call directly to the recipient’s IP address without using a SIP proxy server.Figure 2   WiMAX Modem’s VoIP Features - Peer-to-Peer Calls• Calls via a VoIP service provider - The WiMAX Modem sends your call to a VoIP service provider’s SIP server which forwards your calls to either VoIP or PSTN phones.Figure 3   WiMAX Modem’s VoIP Features - Calls via VoIP Service Provider
 Chapter 1 Getting StartedUser’s Guide 211.2  WiMAX Modem HardwareFollow the instructions in the Quick Start Guide to make hardware connections.1.2.1  LEDsThe following figure shows the LEDs (lights) on the WiMAX Modem.Figure 4   The WiMAX Modem’s LEDsThe following table describes your WiMAX Modem’s LEDs (from right to left).       Table 2   The WiMAX ModemLED STATE DESCRIPTIONPower Off The WiMAX Modem is not receiving power.Red The WiMAX Modem is receiving power but has been unable to start up correctly or is not receiving enough power. See the Troubleshooting section for more information.Green The WiMAX Modem is receiving power and functioning correctly.WiMAN Link Off The WiMAX Modem is not connected to a wireless (WiMAX) network.Green The WiMAX Modem is successfully connected to a wireless (WiMAX) network.Green (Blinking Slowly) The WiMAX Modem is searching for a wireless (WiMAX) network.Green (Blinking Quickly) The WiMAX Modem has found a wireless (WiMAX) network and is connecting.WLANLEDSTRENGTHINDICATORSVOICELEDSPOWERLED1 & 2SIGNALWIMAXLINK
Chapter 1 Getting StartedUser’s Guide221.3  Good Habits for Managing the WiMAX ModemDo the following things regularly to make the WiMAX Modem more secure and to manage the WiMAX Modem 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.• Write down the password and put it in a safe place.• Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the WiMAX Modem becomes unstable or even crashes. If you forget your password, you will have to reset the WiMAX Modem to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the WiMAX Modem. You could simply restore your last configuration.Signal Strength IndicatorThe Strength Indicator LEDs display the Interference-plus-Noise Ratio (CINR) of the wireless (WiMAX) connection.Signal 1 On The signal strength is in the range between 5 and 15.Signal 2 On The signal strength is in the range between 16 and 24.Signal 3 On The signal strength is greater than or equal to 25 dBmVoice Off No SIP account is registered, or the WiMAX Modem is not receiving power.Green A SIP account is registered.Green (Blinking) A SIP account is registered, and the phone attached to the LINE port is in use (off the hook).Yellow A SIP account is registered and has a voice message on the SIP server.Yellow (Blinking) A SIP account is registered and has a voice message on the SIP server, and the phone attached to the LINE port is in use (off the hook).WLAN Off The Wi-Fi network is not operational.Green The Wi-Fi network is operational.Blinking Green The WiMAX Device is sending and receiving data across the Wi-Fi network.Table 2   The WiMAX ModemLED STATE DESCRIPTION
User’s Guide 23CHAPTER  2 Introducing the WebConfigurator2.1  OverviewThe web configurator is an HTML-based management interface that allows easy device set up and management via any web browser that supports: HTML 4.0, CSS 2.0, and JavaScript 1.5, and higher. The recommended screen resolution for using the web configurator is 1024 by 768 pixels and 16-bit color, or higher.In order to use the web configurator you need to allow:• Web browser pop-up windows from your device. Web pop-up blocking is enabled by default in many operating systems and web browsers.• JavaScript (enabled by default in most web browsers).• Java permissions (enabled by default in most web browsers).See the Appendix C on page 219 for more information on configuring your web browser.2.1.1  Accessing the Web Configurator1Make sure your WiMAX Modem hardware is properly connected (refer to the Quick Start Guide for more information).2Launch your web browser.3Enter "192.168.1.1" as the URL.
Chapter 2 Introducing the Web ConfiguratorUser’s Guide244A login screen displays. Enter the default User Name ( 使用者名稱 ) (@dmin) and Password ( 密碼 ) (284wj/6), and then click Login ( 登入 ). Figure 5   Password Screen5The following screen displays if you have not yet changed your password. It is highly recommended you change the default password. Enter a new password, retype it to confirm and click Apply ( 套用 ); alternatively click Ignore ( 忽略 ) to proceed to the main menu if you do not want to change the password now.Figure 6   Change Password Screen2.1.2  The Reset ButtonIf you forget your password or cannot access the web configurator, you will need to use the Reset button to reload the factory-default configuration file. This means that you will lose all configurations that you had previously and the password will be reset to “284wj/6”.2.1.2.1  Using The Reset Button1Make sure the Power light is on (not blinking).2To set the device back to the factory default settings, press the Reset button for ten seconds or until the Power light begins to blink and then release it. When the Power light begins to blink, the defaults have been restored and the device restarts. 3Reconfigure the WiMAX Modem following the steps in your Quick Start Guide.
 Chapter 2 Introducing the Web ConfiguratorUser’s Guide 252.2  The Main ScreenWhen you first log into the web configurator and by-pass the wizard, the Main screen appears. Here you can view a concise summary of your WiMAX Modem connection status. This is also the default “home” page for the ZyXEL web configurator and it contains conveniently-placed shortcuts to all of the other screens.Note: Some features in the web configurator may not be available depending on your firmware version and/or configuration.Figure 7   Main Screen ( 首頁 )The following table describes the icons in this screen.Table 3   Main (首頁) > IconsICON DESCRIPTIONMAIN (首頁 )Click to return to the Main screen.SETUP (設定 )Click to go the Setup screen, where you can configure LAN, DHCP and WAN settings.ADVANCED (進階 )Click to go to the Advanced screen, where you can configure features like Port Forwarding and Triggering, SNTP and so on.
Chapter 2 Introducing the Web ConfiguratorUser’s Guide26The following table describes the labels in this screen. VOICEClick to go to the Voice screen, where you can configure your voice service and phone settings.TOOLS (工具)Click to go the Tools screen, where you can configure your firewall, QoS, and content filter, among other things.STATUS (狀態)Click to go to the Status screen, where you can view status and statistical information for all connections and interfaces.Strength IndicatorDisplays a visual representation of the quality of your WiMAX connection.• Disconnected - Zero bars•Poor reception - One bar•Good reception - Two bars•Excellent reception - Three barsTable 4   MainLABEL DESCRIPTIONLogout ( 登出 ) Click to log out of the web configurator.Note: This does not log you off the WiMAX network, it simply logs you out of the WiMAX Modem’s browser-based configuration interface.WiMAX Connection Status (WiMAX 連線狀態)This field indicates the current status of your WiMAX connection.Status messages are as follows:•Connected - Indicates that the WiMAX Modem is connected to the WiMAX network. Use the Strength Indicator icon to determine the quality of your network connection.•Disconnected - Indicates that the WiMAX Modem is not connected to the WiMAX network.•DL_SYN - Indicates a download synchronization is in progress. This means the firmware is checking with the server for any updates or settings alterations.Software Version ( 軟體版本 )This field indicates the version number of the WiMAX Modem’s firmware. The version number takes the form of: Version(Build),release status (candidate) | Version Release Date.For example: V3.60(BCC.0)c4 | 07/08/2008 indicates that the firmware is 3.60, build BCC.0, candidate4, released on July 08, 2008.Table 3   Main (首頁) > Icons (continued)ICON DESCRIPTION
 Chapter 2 Introducing the Web ConfiguratorUser’s Guide 27Note: For security reasons, the WiMAX Modem automatically logs you out if you do not use the web configurator for five minutes. If this happens, simply log in again.WiMAX Firmware Version (WiMAX 韌體版本)This field displays the version number of the chip firmware used in this WiMAX Modem.Version Date (版本日期)This field indicates the exact date and time the current firmware was compiled.System Uptime ( 系統開機時間 )This field indicates how long the WiMAX Modem has been on. This resets every time you shut the device down or restart it.Table 4   Main (continued)LABEL DESCRIPTION
Chapter 2 Introducing the Web ConfiguratorUser’s Guide28
29PART IIBasic ScreensThe Main Screen  (25)The Setup Screens  (31)
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User’s Guide 31CHAPTER  3 The Setup Screens3.1  OverviewUse these screens to configure or view LAN, DHCP Client and WAN settings.3.1.1  What You Can Do in This Chapter•The Set IP Address (LAN 設定 ) screen (Section 3.2 on page 32) lets you configure the WiMAX Modem’s IP address and subnet mask.•The DHCP Client (DHCP 用戶端 ) screen (Section 3.3 on page 33) lets you view all DHCP client information.•The Time Setting (時間設定) screen (Section 3.4 on page 35) lets you configure your WiMAX Modem’s time and date keeping settings.3.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.LANA Local Area Network, or a shared communication system to which many computers are attached. A LAN, as its name implies, is limited to a local area such as a home or office environment. LANs have different topologies, the most common being the linear bus and the star configuration.IP AddressIP addresses identify individual devices on a network. Every networking device (including computers, servers, routers, printers, etc.) needs an IP address to communicate across the network. These networking devices are also known as hosts.Subnet MaskThe subnet mask specifies the network number portion of an IP address. Your device will compute the subnet mask automatically based on the IP Address that
Chapter 3 The Setup ScreensUser’s Guide32you entered. You do not need to change the computer subnet mask unless you are instructed to do so.DHCPYour WiMAX Modem can act as a DHCP (Dynamic Host Configuration Protocol) server that can assign your LAN computers an IP address, subnet mask, DNS and other routing information when its LAN DHCP feature is turned on.DaytimeA network protocol used by devices for debugging and time measurement. A computer can use this protocol to set its internal clock but only if it knows in which order the year, month, and day are returned by the server. Not all servers use the same format.TimeA network protocol for retrieving the current time from a server. The computer issuing the command compares the time on its clock to the information returned by the server, adjusts itself automatically for time zone differences, then calculates the difference and corrects itself if there has been any temporal drift.NTPNTP stands for Network Time Protocol. It is employed by devices connected to the Internet in order to obtain a precise time setting from an official time server. These time servers are accurate to within 200 microseconds.3.1.3  Before You Begin• Make sure that you have made all the appropriate hardware connections to the WiMAX Modem, as described in the Quick Start Guide.• Make sure that you have logged in to the web configurator at least one time and changed your password from the default, as described in the Quick Start Guide.3.2  Set IP Address (LAN 設定 )Click the SETUP (設定) icon in the navigation bar to set up the WiMAX Modem’s IP address and subnet mask. This screen displays this screen by default. If you are in
 Chapter 3 The Setup ScreensUser’s Guide 33any other sub-screen you can simply choose Set IP Address (LAN設定) from the navigation menu on the left to open it again.Figure 8   SETUP(設定) > Set IP Address (LAN 設定 )The following table describes the labels in this screen.  3.3  DHCP Client (DHCP 用戶端 )Click SETUP (設定 ) > DHCP Client (DHCP 用戶端 ) to display the IP addresses, Host Names and MAC addresses of the devices currently connected to the WiMAX Table 5   SETUP ( 設定 ) > Set IP Address (LAN 設定 )LABEL DESCRIPTIONIP Address (IP 位址 )Enter the IP address of the WiMAX Modem on the LAN.Note: This field is the IP address you use to access the WiMAX Modem on the LAN. If the web configurator is running on a computer on the LAN, you lose access to it as soon as you change this field and click Apply ( 套用). You can access the web configurator again by typing the new IP address in the browser.IP Subnet Mask (IP子網路遮罩 )Enter the subnet mask of the LAN.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
Chapter 3 The Setup ScreensUser’s Guide34Modem. These settings can be configured in the ADVANCED ( 進階 ) > LAN Configuration (LAN 設定 ) > DHCP Setup screen.Figure 9   SETUP ( 設定 ) > DHCP Client (DHCP 用戶端 )The following table describes the labels in this screen. Table 6   SETUP(設定) > DHCP Client(DHCP 用戶端 )LABEL DESCRIPTION# The number of the item in this list.IP Address (IP 位址 ) This field displays the IP address the WiMAX Modem assigned to a computer in the network.Host Name ( 主機名稱 ) This field displays the system name of the computer to which the WiMAX Modem assigned the IP address.MAC Address (MAC位址)This field displays the MAC address of the computer to which the WiMAX Modem assigned the IP address.Reserve ( 保留 )Apply ( 套用 )Select Reserve ( 保留 ) and click Apply ( 套用 ) to have the WiMAX Modem always map the currently assigned IP address to the device with this MAC address.Clear Remain (保留) and click Apply (套用) to allow the WiMAX Modem to assign a new IP address to this device with this MAC address when next time the device sends a new DHCP request.Refresh ( 重新整理 )Click this button to update the table data.
 Chapter 3 The Setup ScreensUser’s Guide 353.4  Time Setting ( 時間設定 )Click SETUP ( 設定 ) > Time Setting ( 時間設定 ) to set the date, time, and time zone for the WiMAX Modem.Figure 10   SETUP (設定) > Time Setting (時間設定)The following table describes the labels in this screen. Table 7   SETUP (設定) > Time Setting ( 時間設定 )LABEL DESCRIPTIONCurrent Time and Date ( 現在的時間與日期 )Current Time ( 現在時間)Displays the current time according to the WiMAX Modem.Current Date ( 現在日期)Displays the current time according to the WiMAX Modem.Time and Date Setup ( 時間和日期設定 )Manual ( 手動 )Select this if you want to specify the current date and time in the fields below.New Time ( 新的時間)Enter the new time in this field, and click Apply ( 套用 ).New Date ( 新的日期)Enter the new date in this field, and click Apply ( 套用 ).
Chapter 3 The Setup ScreensUser’s Guide363.4.1  Pre-Defined NTP Time Servers ListThe WiMAX Modem uses a pre-defined list of NTP time servers if you do not specify a time server or it cannot synchronize with the time server you specified. It can use this list regardless of the time protocol you select.When the WiMAX Modem uses the list, it randomly selects one server and tries to synchronize with it. If the synchronization fails, then it goes through the rest of the list in order until either it is successful or all the pre-defined NTP time servers have been tried. Get from Time Server (從時間伺服器取得 )Select this if you want to use a time server to update the current date and time in the WiMAX Modem.Time Protocol ( 時間通訊協定 )Select the time service protocol that your time server uses.Check with your ISP or network administrator, or use trial-and-error to find a protocol that works.Daytime (RFC 867) - This format is day/month/year/time zone.Time (RFC 868) - This format displays a 4-byte integer giving the total number of seconds since 1970/1/1 at 0:0:0.NTP (RFC 1305) - This format is similar to Time (RFC 868).Time Server Address ( 時間伺服器位址 )Enter the IP address or URL of your time server. Check with your ISP or network administrator if you are unsure of this information.Time Zone Setup ( 時區設定 )Time Zone ( 時區 ) Select the time zone at your location.Daylight Savings ( 日光節約 )Select this if your location uses daylight savings time. Daylight savings is a period from late spring to early fall when many places set their clocks ahead of normal local time by one hour to give more daytime light in the evening.Start Date (開始時間)Enter which hour on which day of which week of which month daylight-savings time starts.End Date (結束時間) Enter which hour on the which day of which week of which month daylight-savings time ends.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 7   SETUP (設定) > Time Setting ( 時間設定 )LABEL DESCRIPTIONTable 8   Pre-defined NTP Time Serversntp1.cs.wisc.eduntp1.gbg.netnod.sentp2.cs.wisc.edutock.usno.navy.milntp3.cs.wisc.edu
 Chapter 3 The Setup ScreensUser’s Guide 373.4.2  Resetting the TimeThe WiMAX Modem automatically resets the time in the following circumstances:• When the device starts up, such as when you press the Power button.• When you click Apply (套用 ) in the SETUP (設定) > Time Setting (時間設定) screen.• Once every 24-hours after starting up.ntp.cs.strath.ac.ukntp1.sp.setime1.stupi.setick.stdtime.gov.twtock.stdtime.gov.twtime.stdtime.gov.twTable 8   Pre-defined NTP Time Servers (continued)
Chapter 3 The Setup ScreensUser’s Guide38
39PART IIIAdvanced ScreensThe Status Screen  (41)The LAN Configuration Screens  (45)The WIFI Configuration Screen  (59)The WAN Configuration Screens  (77)The NAT Configuration Screens  (89)The System Configuration Screens  (99)
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User’s Guide 41CHAPTER  4 The Status Screen4.1  OverviewUse this screen to view a complete summary of your WiMAX Modem connection status.4.2  Status ( 狀態 ) ScreenClick Advanced ( 進階 ) > STATUS ( 狀態 ) in the navigation bar to go to this screen, where you can view the current status of the device, system resources, interfaces (LAN and WAN), and SIP accounts. You can also register and un-register SIP accounts as well as view detailed information from DHCP and statistics from WiMAX, VoIP, bandwidth management, and traffic.Figure 11   Advanced ( 進階 ) > Status ( 狀態 )The following tables describe the labels in this screen.    Table 9   Advanced ( 進階 ) > Status (狀態 )LABEL DESCRIPTIONRefresh Interval Select how often you want the WiMAX Modem to update this screen.Refresh Now Click this to update this screen immediately.
Chapter 4 The Status ScreenUser’s Guide42Device InformationSystem Name This field displays the WiMAX Modem system name. It is used for identification. Firmware Version This field displays the current version of the firmware inside the device. It also shows the date the firmware version was created. You can change the firmware version by uploading new firmware in ADVANCED (進階) > System Configuration (系統組態) > Firmware.WAN InformationIP Address This field displays the current IP address of the WiMAX Modem in the WAN.IP Subnet Mask This field displays the current subnet mask on the WAN.DHCP This field displays what DHCP services the WiMAX Modem is using in the WAN. Choices are:Client - The WiMAX Modem is a DHCP client in the WAN. Its IP address comes from a DHCP server on the WAN.None - The WiMAX Modem is not using any DHCP services in the WAN. It has a static IP address.LAN InformationIP Address This field displays the current IP address of the WiMAX Modem in the LAN.IP Subnet Mask This field displays the current subnet mask in the LAN.DHCP This field displays what DHCP services the WiMAX Modem is providing to the LAN. Choices are:Server - The WiMAX Modem is a DHCP server in the LAN. It assigns IP addresses to other computers in the LAN.Relay - The WiMAX Modem is routing DHCP requests to one or more DHCP servers. The DHCP server(s) may be on another network.None - The WiMAX Modem is not providing any DHCP services to the LAN.You can change this in ADVANCED (進階) > LAN Configuration (LAN設定 ) > DHCP Setup.WiMAX InformationCINR mean This field shows the average Carrier to Interference plus Noise Ratio of the current connection. This value is an indication of overall radio signal quality. A higher value indicates a higher signal quality, and a lower value indicates a lower signal quality.CINR deviation This field shows the amount of change in the CINR level. This value is an indication of radio signal stability. A lower number indicates a more stable signal, and a higher number indicates a less stable signal. RSSI This field shows the Received Signal Strength Indication. This value is a measurement of overall radio signal strength. A higher RSSI level indicates a stronger signal, and a lower RSSI level indicates a weaker signal.A strong signal does not necessarily indicate a good signal: a strong signal may have a low signal-to-noise ratio (SNR).Interface StatusTable 9   Advanced ( 進階 ) > Status (狀態 ) (continued)LABEL DESCRIPTION
 Chapter 4 The Status ScreenUser’s Guide 43Interface This column displays each interface of the WiMAX Modem.Status This field indicates whether or not the WiMAX Modem is using the interface.For the WAN interface, this field displays Up when the WiMAX Modem is connected to a WiMAX network, and Down when the WiMAX Modem is not connected to a WiMAX network.For the LAN interface, this field displays Up when the WiMAX Modem is using the interface and Down when the WiMAX Modem is not using the interface.Table 9   Advanced ( 進階 ) > Status (狀態 ) (continued)LABEL DESCRIPTION
Chapter 4 The Status ScreenUser’s Guide44
User’s Guide 45CHAPTER  5 The LAN Configuration Screens5.1  OverviewUse the ADVANCED > LAN Configuration screens to set up the WiMAX Modem on the LAN. You can configure its IP address and subnet mask, DHCP services, and other subnets. You can also control how the WiMAX Modem sends routing information using RIP.A Local Area Network (LAN) is a shared communication system to which many computers are attached. A LAN is usually a computer network limited to the immediate area, such as the same building or floor of a building.5.1.1  What You Can Do in This Chapter•The DHCP Setup screen (Section 5.2 on page 46) lets you enable, disable, and configure the DHCP server in the WiMAX Modem.•The Static DHCP screen (Section 5.3 on page 47) lets you assign specific IP addresses to specific computers on the LAN.•The IP Alias screen (Section 5.4 on page 49) lets you add subnets on the LAN port. You can also control what routing information is sent and received by each subnet.•The  IP Static Route screen (Section 5.5 on page 51) lets you examine the static routes configured in the WiMAX Modem.•The Other Settings screen (Section 5.6 on page 53) lets you control the routing information that is sent and received by each subnet assign specific IP addresses to specific computers on the LAN.5.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.IP AddressIP addresses identify individual devices on a network. Every networking device (including computers, servers, routers, printers, etc.) needs an IP address to
Chapter 5 The LAN Configuration ScreensUser’s Guide46communicate across the network. These networking devices are also known as hosts.Subnet MasksSubnet masks determine the maximum number of possible hosts on a network. You can also use subnet masks to divide one network into multiple sub-networks.DNSDNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice versa. The DNS server is extremely important because without it, you must know the IP address of a networking device before you can access it.DHCPA DHCP (Dynamic Host Configuration Protocol) server can assign your WiMAX Modem an IP address, subnet mask, DNS and other routing information when it’s turned on.5.2  DHCP SetupClick ADVANCED > LAN Configuration > DHCP Setup to enable, disable, and configure the DHCP server in the WiMAX Modem.Figure 12   ADVANCED > LAN Configuration > DHCP Setup
 Chapter 5 The LAN Configuration ScreensUser’s Guide 47The following table describes the labels in this screen.      5.3  Static DHCPClick ADVANCED > LAN Configuration > Static DHCP to assign specific IP addresses to specific computers on the LAN.Table 10   ADVANCED > LAN Configuration > DHCP SetupLABEL DESCRIPTIONDHCP SetupEnable DHCP Server Select this if you want the WiMAX Modem to be the DHCP server on the LAN. As a DHCP server, the WiMAX Modem assigns IP addresses to DHCP clients on the LAN and provides the subnet mask and DNS server information.IP Pool Starting Address Enter the IP address from which the WiMAX Modem begins allocating IP addresses, if you have not specified an IP address for this computer in ADVANCED > LAN Configuration > Static DHCP.Pool Size Enter the number of IP addresses to allocate. This number must be at least one and is limited by a subnet mask of 255.255.255.0 (regardless of the subnet the WiMAX Modem is in). For example, if the IP Pool Start Address is 10.10.10.10, the WiMAX Modem can allocate up to 10.10.10.254, or 245 IP addresses.DNS ServerFirst, Second and Third DNS ServerSpecify the IP addresses of a maximum of three DNS servers that the network can use. The WiMAX Modem provides these IP addresses to DHCP clients. You can specify these IP addresses two ways.From ISP - provide the DNS servers provided by the ISP on the WAN port.User Defined - enter a static IP address.DNS Relay - this setting will relay DNS information from the DNS server obtained by the WiMAX Modem.None - no DNS service will be provided by the WiMAX Modem.Apply Click to save your changes.Reset Click to restore your previously saved settings.
Chapter 5 The LAN Configuration ScreensUser’s Guide48Note: This screen has no effect if the DHCP server is not enabled. You can enable it in ADVANCED > LAN Configuration > DHCP Setup.Figure 13   ADVANCED > LAN Configuration > Static DHCPThe following table describes the labels in this screen. Table 11   ADVANCED > LAN Configuration > Static DHCPLABEL DESCRIPTION# The number of the item in this list.MAC Address Enter the MAC address of the computer to which you want the WiMAX Modem to assign the same IP address.IP Address Enter the IP address you want the WiMAX Modem to assign to the computer.Apply Click to save your changes.Reset Click to restore your previously saved settings.
 Chapter 5 The LAN Configuration ScreensUser’s Guide 495.4  IP AliasClick ADVANCED > LAN Configuration > IP Alias to add subnets on the LAN port. You can also control what routing information is sent and received by each subnet.Figure 14   ADVANCED > LAN Configuration> IP AliasThe following table describes the labels in this screen.Table 12   ADVANCED > LAN Configuration> IP AliasLABEL DESCRIPTIONIP Alias 1 Select this to add the specified subnet to the LAN port.IP Address Enter the IP address of the WiMAX Modem on the subnet.IP Subnet Mask Enter the subnet mask of the subnet.RIP Direction Use this field to control how much routing information the WiMAX Modem sends and receives on the subnet.•None - The WiMAX Modem does not send or receive routing information on the subnet.•Both - The WiMAX Modem sends and receives routing information on the subnet.•In Only - The WiMAX Modem only receives routing information on the subnet.•Out Only - The WiMAX Modem only sends routing information on the subnet.
Chapter 5 The LAN Configuration ScreensUser’s Guide50RIP Version Select which version of RIP the WiMAX Modem uses when it sends or receives information on the subnet.•RIP-1 - The WiMAX Modem uses RIPv1 to exchange routing information.•RIP-2B - The WiMAX Modem broadcasts RIPv2 to exchange routing information.•RIP-2M - The WiMAX Modem multicasts RIPv2 to exchange routing information.IP Alias 2 Select this to add the specified subnet to the LAN port.IP Address Enter the IP address of the WiMAX Modem on the subnet.IP Subnet Mask Enter the subnet mask of the subnet.RIP Direction Use this field to control how much routing information the WiMAX Modem sends and receives on the subnet.•None - The WiMAX Modem does not send or receive routing information on the subnet.•Both - The WiMAX Modem sends and receives routing information on the subnet.•In Only - The WiMAX Modem only receives routing information on the subnet.•Out Only - The WiMAX Modem only sends routing information on the subnet.RIP Version Select which version of RIP the WiMAX Modem uses when it sends or receives information on the subnet.•RIP-1 - The WiMAX Modem uses RIPv1 to exchange routing information.•RIP-2B - The WiMAX Modem broadcasts RIPv2 to exchange routing information.•RIP-2M - The WiMAX Modem multicasts RIPv2 to exchange routing information.Apply Click to save your changes.Reset Click to restore your previously saved settings.Table 12   ADVANCED > LAN Configuration> IP Alias (continued)LABEL DESCRIPTION
 Chapter 5 The LAN Configuration ScreensUser’s Guide 515.5  IP Static RouteClick ADVANCED > LAN Configuration > IP Static Route to look at the static routes configured in the WiMAX Modem.Note: The first static route is the default route and cannot be modified or deleted.Figure 15   Advanced> LAN Configuration > IP Static RouteThe following table describes the icons in this screen.The following table describes the labels in this screen. Table 13   Advanced> LAN Configuration > IP Static RouteICON DESCRIPTIONEditClick to edit this item.DeleteClick to delete this item.Table 14   Advanced> LAN Configuration > IP Static RouteLABEL DESCRIPTION#The number of the item in this list.Name This field displays the name that describes the static route.Active This field shows whether this static route is active (Yes) or not (No).Destination This field displays the destination IP address(es) that this static route affects.Gateway This field displays the IP address of the gateway to which the WiMAX Modem should send packets for the specified Destination. The gateway is a router or a switch on the same network segment as the device's LAN or WAN port. The gateway helps forward packets to their destinations.Apply Click to save your changes.Reset Click to restore your previously saved settings.
Chapter 5 The LAN Configuration ScreensUser’s Guide525.5.1  IP Static Route SetupClick an Edit icon in ADVANCED > LAN Configuration > IP Static Route to edit a static route in the WiMAX Modem.Figure 16   Advanced> LAN Configuration > IP Static Route SetupThe following table describes the labels in this screen.Table 15   Management > Static Route > IP Static Route > EditLABEL DESCRIPTIONRoute Name Enter the name of the static route.Active Select this if you want the static route to be used. Clear this if you do not want the static route to be used.Private Select this if you do not want the WiMAX Modem to tell other routers about this static route. For example, you might select this if the static route is in your LAN. Clear this if you want the WiMAX Modem to tell other routers about this static route.Destination IP Address Enter one of the destination IP addresses that this static route affects.IP Subnet Mask Enter the subnet mask that defines the range of destination IP addresses that this static route affects. If this static route affects only one IP address, enter 255.255.255.255.Gateway IP Address Enter the IP address of the gateway to which the WiMAX Modem should send packets for the specified Destination. The gateway is a router or a switch on the same network segment as the device's LAN or WAN port. The gateway helps forward packets to their destinations.Metric Usually, you should keep the default value. This field is related to RIP.The metric represents the "cost of transmission". A router determines the best route for transmission by choosing a path with the lowest "cost". The smaller the metric, the lower the "cost". RIP uses hop count as the measurement of cost, where 1 is for a directly-connected network. The metric must be 1-15; if you use a value higher than 15, the routers assume the link is down.
 Chapter 5 The LAN Configuration ScreensUser’s Guide 535.6  Other SettingsClick ADVANCED > LAN Configuration > Other Settings to set the RIP and Multicast options.Figure 17   ADVANCED > LAN Configuration > AdvancedThe following table describes the labels in this screen.Apply Click to save your changes.Cancel Click to return to the previous screen without saving your changes.Table 15   Management > Static Route > IP Static Route > Edit (continued)LABEL DESCRIPTIONTable 16   ADVANCED > LAN Configuration > Other SettingsLABEL DESCRIPTIONRIP & Multicast SetupRIP Direction Use this field to control how much routing information the WiMAX Modem sends and receives on the subnet.•None - The WiMAX Modem does not send or receive routing information on the subnet.•Both - The WiMAX Modem sends and receives routing information on the subnet.•In Only - The WiMAX Modem only receives routing information on the subnet.•Out Only - The WiMAX Modem only sends routing information on the subnet.RIP Version Select which version of RIP the WiMAX Modem uses when it sends or receives information on the subnet.•RIP-1 - The WiMAX Modem uses RIPv1 to exchange routing information.•RIP-2B - The WiMAX Modem broadcasts RIPv2 to exchange routing information.•RIP-2M - The WiMAX Modem multicasts RIPv2 to exchange routing information.
Chapter 5 The LAN Configuration ScreensUser’s Guide545.7  Technical ReferenceThe following section contains additional technical information about the WiMAX Modem features described in this chapter.5.7.1  IP Address and Subnet MaskSimilar to the way houses on a street share a common street name, computers on a LAN share one common network number.Where you obtain your network number depends on your particular situation. If the ISP or your network administrator assigns you a block of registered IP addresses, follow their instructions in selecting the IP addresses and the subnet mask.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. If this is the case, it is recommended that you select a network number from 192.168.0.0 to 192.168.255.0 and you must enable the Network Address Translation (NAT) feature of the WiMAX Modem. The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for private use; please do not use any other number unless you are told otherwise. Let's say you select 192.168.1.0 as the network number; which covers 254 individual addresses, from 192.168.100.1 to 192.168.1.254 (zero and 255 are reserved). In other words, the first three numbers specify the network number while the last number identifies an individual computer on that network.Multicast You do not have to enable multicasting to use RIP-2M. (See RIP Version.)Select which version of IGMP the WiMAX Modem uses to support multicasting on the LAN. Multicasting sends packets to some computers on the LAN and is an alternative to unicasting (sending packets to one computer) and broadcasting (sending packets to every computer).•None - The WiMAX Modem does not support multicasting.•IGMP-v1 - The WiMAX Modem supports IGMP version 1.•IGMP-v2 - The WiMAX Modem supports IGMP version 2.Multicasting can improve overall network performance. However, it requires extra processing and generates more network traffic. In addition, other computers on the LAN have to support the same version of IGMP.Apply Click to save your changes.Reset Click to restore your previously saved settings.Table 16   ADVANCED > LAN Configuration > Other Settings (continued)LABEL DESCRIPTION
 Chapter 5 The LAN Configuration ScreensUser’s Guide 55Once you have decided on the network number, pick an IP address that is easy to remember, for instance, 192.168.100.1, for your WiMAX Modem, but make sure that no other device on your network is using that IP address.The subnet mask specifies the network number portion of an IP address. Your WiMAX Modem will compute the subnet mask automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the WiMAX Modem unless you are instructed to do otherwise.5.7.2  DHCP SetupDHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to obtain TCP/IP configuration at start-up from a server. You can configure the WiMAX Modem as a DHCP server or disable it. When configured as a server, the WiMAX Modem provides the TCP/IP configuration for the clients. If DHCP service is disabled, you must have another DHCP server on your LAN, or else each computer must be manually configured.The WiMAX Modem is pre-configured with a pool of IP addresses for the DHCP clients (DHCP Pool). See the product specifications in the appendices. Do not assign static IP addresses from the DHCP pool to your LAN computers.These parameters should work for the majority of installations. If your ISP gives you explicit DNS server address(es), see Section 5.3 on page 47.5.7.3  LAN TCP/IPThe WiMAX Modem has built-in DHCP server capability that assigns IP addresses and DNS servers to systems that support DHCP client capability.The LAN parameters of the WiMAX Modem are preset in the factory with the following values:• IP address of 192.168.100.1 with subnet mask of 255.255.255.0 (24 bits)• DHCP server enabled with 32 client IP addresses starting from 192.168.1.33. These parameters should work for the majority of installations. If your ISP gives you explicit DNS server address(es), see Section 5.3 on page 47.5.7.4  DNS Server AddressDNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice versa. The DNS server is extremely important because without it, you must know the IP address of a machine before you can access it.
Chapter 5 The LAN Configuration ScreensUser’s Guide56The DNS server addresses that you enter in the DHCP setup are passed to the client machines along with the assigned IP address and subnet mask.There are two ways that an ISP disseminates the DNS server addresses. The first is for an ISP to tell a customer the DNS server addresses, usually in the form of an information sheet, when s/he signs up. If your ISP gives you the DNS server addresses, enter them in the DNS Server fields in DHCP Setup, otherwise, leave them blank.Some ISPs choose to pass the DNS servers using the DNS server extensions of PPP IPCP (IP Control Protocol) after the connection is up. If your ISP did not give you explicit DNS servers, chances are the DNS servers are conveyed through IPCP negotiation. The WiMAX Modem supports the IPCP DNS server extensions through the DNS proxy feature.If the Primary and Secondary DNS Server fields in the LAN Setup screen are not specified, for instance, left as 0.0.0.0, the WiMAX Modem tells the DHCP clients that it itself is the DNS server. When a computer sends a DNS query to the WiMAX Modem, the WiMAX Modem forwards the query to the real DNS server learned through IPCP and relays the response back to the computer.Please note that DNS proxy works only when the ISP uses the IPCP DNS server extensions. It does not mean you can leave the DNS servers out of the DHCP setup under all circumstances. If your ISP gives you explicit DNS servers, make sure that you enter their IP addresses in the LAN Setup screen. This way, the WiMAX Modem can pass the DNS servers to the computers and the computers can query the DNS server directly without the WiMAX Modem’s intervention.5.7.5  RIP SetupRIP (Routing Information Protocol) allows a router to exchange routing information with other routers. The RIP Direction field controls the sending and receiving of RIP packets.  When set to:•Both - the WiMAX Modem will broadcast its routing table periodically and incorporate the RIP information that it receives.•In Only - the WiMAX Modem will not send any RIP packets but will accept all RIP packets received.•Out Only - the WiMAX Modem will send out RIP packets but will not accept any RIP packets received.•None - the WiMAX Modem will not send any RIP packets and will ignore any RIP packets received.The Version field controls the format and the broadcasting method of the RIP packets that the WiMAX Modem sends (it recognizes both formats when receiving). RIP-1 is universally supported; but RIP-2 carries more information.
 Chapter 5 The LAN Configuration ScreensUser’s Guide 57RIP-1 is probably adequate for most networks, unless you have an unusual network topology.Both RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference being that RIP-2B uses subnet broadcasting while RIP-2M uses multicasting.5.7.6  MulticastTraditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender - 1 recipient) or Broadcast (1 sender - everybody on the network). Multicast delivers IP packets to a group of hosts on the network - not everybody and not just 1.IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish membership in a Multicast group - it is not used to carry user data. IGMP version 2 (RFC 2236) is an improvement over version 1 (RFC 1112) but IGMP version 1 is still in wide use. If you would like to read more detailed information about interoperability between IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236. The class D IP address is used to identify host groups and can be in the range 224.0.0.0 to 239.255.255.255. The address 224.0.0.0 is not assigned to any group and is used by IP multicast computers. The address 224.0.0.1 is used for query messages and is assigned to the permanent group of all IP hosts (including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP. The address 224.0.0.2 is assigned to the multicast routers group.The WiMAX Modem supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-v2). At start up, the WiMAX Modem queries all directly connected networks to gather group membership. After that, the WiMAX Modem periodically updates this information. IP multicasting can be enabled/disabled on the WiMAX Modem LAN and/or WAN interfaces in the web configurator (LAN; WAN). Select None to disable IP multicasting on these interfaces.
Chapter 5 The LAN Configuration ScreensUser’s Guide58
User’s Guide 59CHAPTER  6 The WIFI Configuration Screen6.1  Overview Wi-Fi is a wireless networking technology and it is a synonym for wireless LAN. The blue circle marks a wireless LAN in the following figure. Wireless clients (A and B) connect to an access point (AP) to access other devices (such as the printer) or the Internet. Your WiMAX Modem works as an AP when you install a compatible WLAN card.Figure 18   Example of a Wireless Network6.1.1  What You Can Do in the WIFI ScreensThis chapter describes the WiMAX Modem’s Advanced (進階 ) > WIFI Configuration (WIFI 設定 ) screens. Use these screens to set up your WiMAX Modem’s wireless connection.ABAPEthernet
Chapter 6 The WIFI Configuration ScreenUser’s Guide60•Use the General screen (see Section 6.2 on page 63) to turn the wireless connection on or off, set up wireless security, configure the MAC filter, set up Quality of Service and make other basic configuration changes.•Use the MAC Filter screen (see Section 6.3 on page 69) to configure a MAC (Media Access Control) address filter to restrict access to the wireless network.You don’t necessarily need to use all these screens to set up your wireless connection. For example, you may just want to set up a network name, a wireless radio channel and some security in the AP screen.6.1.2  What You Need to Know About WIFIWireless Basics• Every device in the same wireless network must use the same Service Set IDentity (SSID).The SSID is the name of the wireless network.• If two wireless networks overlap, they should use different channels.Like radio stations or television channels, each wireless network uses a specific channel, or frequency, to send and receive information.Wireless Network ConstructionWireless networks consist of wireless clients, access points and bridges. • A wireless client is a radio connected to a user’s computer. • An access point is a radio with a wired connection to a network, which can connect with numerous wireless clients and let them access the network. • A bridge is a radio that relays communications between access points and wireless clients, extending a network’s range. Traditionally, a wireless network operates in one of two ways.• An “infrastructure” type of network has one or more access points and one or more wireless clients.  The wireless clients connect to the access points.• An “ad-hoc” type of network is one in which there is no access point. Wireless clients connect to one another in order to exchange information.Wired Equivalent Privacy (WEP)WEP (Wired Equivalent Privacy) encrypts data transmitted between wired and wireless networks to keep the transmission private. Although one of the original wireless encryption protocols, WEP is also the weakest. Many people use it strictly to deter unintentional usage of their wireless network by outsiders.Authentication Type
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 61The IEEE 802.11b/g standard describes a simple authentication method between the wireless stations and AP. Three authentication types are defined: Auto, Open and Shared. The WiMAX Modem supports the WEP (Open) and WEP (Shared) authentication types.• Open mode is implemented for ease-of-use and when security is not an issue. The wireless station and the AP or peer computer do not share a secret key. Thus the wireless stations can associate with any AP or peer computer and listen to any transmitted data that is not encrypted.• Shared mode involves a shared secret key to authenticate the wireless station to the AP or peer computer. This requires you to enable the wireless LAN security and use same settings on both the wireless station and the AP or peer computer.Wi-Fi Protected Access (WPA)WPA encrypts data transmitted between wired and wireless networks to keep the transmission private. It affords vastly stronger security than its lower-tier counterpart, WEP (Wired Equivalent Privacy). It comes in two different flavors: WPA and WPA2. Always try to use WPA2 as it implements the full version of the security standard while WPA does not.WPA2 WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption, authentication and key management than WPA. It includes two data encryption algorithms, Temporal Key Integrity Protocol (TKIP) and Advanced Encryption Standard (AES) in the Counter mode with Cipher block chaining Message authentication Code Protocol (CCMP). WPA2 reduces the number of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time required to connect to a network. Other WPA2 authentication features that are different from WPA include key caching and pre-authentication. These two features are optional and may not be implemented in all wireless devices. See also WPA.Pre-Shared Key (PSK)A pre-shared key is a password shared between the server and the client that unlocks the algorithm used to encrypt the data traffic between them. Without the proper password, the client and the server cannot communicate.
Chapter 6 The WIFI Configuration ScreenUser’s Guide62SecuritySecurity stops unauthorized devices from using the wireless network. It can also protect the information that is sent in the wireless network.Use the strongest security that every wireless client in the wireless network supports.Note: WPA2 or WPA2-PSK security is recommended.• WPA2-PSK and WPA-PSK do not employ user authentication and are known as the personal version of WPA.• WEP is better than no security, but it is still possible for unauthorized devices to figure out the original information pretty quickly.AES Advanced Encryption Standard is method of data encryption that uses a secret key. AES may use a 128-bit, 192-bit or 256-bit key. AES is faster than 3DES.TKIP Temporal Key Integrity Protocol (TKIP) is an encryption protocol that uses 128-bit keys that are dynamically generated and distributed by the authentication server. TKIP regularly changes and rotates the encryption keys so that the same encryption key is never used twice.MAC Address FilterEvery Ethernet device has a unique MAC (Media Access Control) address. The MAC address consists of twelve hexadecimal characters (0-9, and A to F), and it is usually written in the following format: “0A:A0:00:BB:CC:DD”. Table 17   Wireless Security LevelsSECURITY LEVEL SECURITY TYPEWeakest  StrongestNo SecurityMAC Address FilteringWEP EncryptionIEEE 802.1x EAP with RADIUS Server AuthenticationWPA-PSK (Wi-Fi Protected Access Pre-Shared Key)WPA (Wi-Fi Protected Access)WPA-PSK2WPA2
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 63The MAC address filter controls access to the wireless network. You can use the MAC address of each wireless client to allow or deny access to the wireless network.Finding Out More• See Chapter 3 on page 31 for a tutorial showing how to set up your wireless connection in an example scenario.• See Section 6.4 on page 70 for advanced technical information on wireless networks.6.1.3  Before You StartBefore you start using these screens, ask yourself the following questions. See Section 6.1.2 on page 60 if some of the terms used here do not make sense to you.• What wireless standards do the other wireless devices support (IEEE 802.11g, for example)? What is the most appropriate standard to use?• What security options do the other wireless devices support (WPA-PSK, for example)? What is the best one to use?• Do the other wireless devices support WPS (Wi-Fi Protected Setup)? If so, you can set up a well-secured network very easily. Even if some of your devices support WPS and some do not, you can use WPS to set up your network and then add the non-WPS devices manually, although this is somewhat more complicated to do.• What advanced options do you want to configure, if any? If you want to configure advanced options such as Quality of Service, ensure that you know precisely what you want to do. If you do not want to configure advanced options, leave them alone.6.2  General Screen Note: If you are configuring the WiMAX Modem from a computer connected to the wireless LAN and you change the WiMAX Modem’s SSID or security settings, you will lose your wireless connection when you press Apply (套用) to confirm. You must then change the wireless settings of your computer to match the WiMAX Modem’s new settings.
Chapter 6 The WIFI Configuration ScreenUser’s Guide64Click Advanced (進階) > WIFI Configuration (WIFI設定) to open the General screen.Figure 19   Advanced (進階 ) > WIFI Configuration (WIFI 設定 ) > GeneralThe following table describes the labels in this screen.Table 18   Advanced (進階 ) > WIFI Configuration (WIFI 設定 ) > GeneralLABEL DESCRIPTIONActive Wireless LAN (啟用無線區域網路 )Click the check box to activate wireless LAN.Network Name (SSID) (名稱 )The SSID (Service Set IDentity) identifies the service set with which a wireless device is associated. Wireless devices associating to the access point (AP) must have the same SSID. Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN. Note: If you are configuring the WiMAX Modem from a computer connected to the wireless LAN and you change the WiMAX Modem’s SSID or WEP settings, you will lose your wireless connection when you press Apply ( 套用 ) to confirm. You must then change the wireless settings of your computer to match the WiMAX Modem’s new settings.Hide SSID (隱藏 SSID) Select this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain the SSID through scanning using a site survey tool.Channel Selection ( 頻道選擇 )Select this option and set the operating frequency/channel depending on your particular region. Select a channel from the drop-down list box. Security Mode ( 安全模式)See the following sections for more details about this field.Apply ( 套用 )Click Apply ( 套用 ) to save your changes back to the WiMAX Modem.
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 656.2.1  No SecuritySelect No Security in the Security Mode ( 安全模式 ) field to allow wireless devices to communicate with the access points without any data encryption. Note: If you do not enable any wireless security on your WiMAX Modem, your network is accessible to any wireless networking device that is within range.Figure 20   Advanced (進階) > WIFI Configuration (WIFI設定) > General: No SecurityCancel (取消)Click Cancel ( 取消 ) to reload the previous configuration for this screen.Advanced Setup (進階模式)Click Advanced Setup ( 進階模式 ) to display the Wireless Advanced Setup screen and edit more details of your WLAN setup.Table 18   Advanced (進階 ) > WIFI Configuration (WIFI 設定 ) > General (continued)LABEL DESCRIPTION
Chapter 6 The WIFI Configuration ScreenUser’s Guide666.2.2  WEP EncryptionIn order to configure and enable WEP encryption; click Advanced (進階) > WIFI Configuration (WIFI 設定 ) > General to display the General screen. Select WEP (OPEN) or WEP (SHARED) from the Security Mode ( 安全模式 ) list.Figure 21   Advanced ( 進階 ) > WIFI Configuration (WIFI 設定 ) > General: WEP (OPEN) / WEP (SHARED)The following table describes the wireless LAN security labels in this screen.6.2.3  WPA(2)-PSK In order to configure and enable WPA(2)-PSK authentication; click Advanced ( 進階) > WIFI Configuration (WIFI 設定 ) to display the General screen. Select Table 19   Advanced ( 進階 ) > WIFI Configuration (WIFI 設定 ) > General: WEP (OPEN) / WEP (SHARED)LABEL DESCRIPTIONSecurity Mode ( 安全模式)Choose WEP (OPEN) or WEP (SHARED) from the drop-down list box.WEP Key The WEP key is used to encrypt data. Both the WiMAX Modem and the wireless stations must use the same WEP key for data transmission.If you want to manually set the WEP key, enter any 5 or 13 characters (ASCII string) or 10 or 26 hexadecimal characters ("0-9", "A-F") for a 64-bit or 128-bit WEP key respectively.
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 67WPA-PSK (AES), WPA2-PSK (AES), WPA-PSK (TKIP), or WPA2-PSK (TKIP) from the Security Mode ( 安全模式 ) list.Figure 22   Advanced ( 進階 ) > WIFI Configuration (WIFI 設定 ) > General: WPA(2)-PSK (AES/TKIP)The following table describes the wireless LAN security labels in this screen.Table 20   Advanced (進階) > WIFI Configuration (WIFI設定) > General: WPA(2)-PSK (AES/TKIP)LABEL DESCRIPTIONSecurity Mode (安全模式 )Choose WPA-PSK (AES), WPA2-PSK (AES), WPA-PSK (TKIP), or WPA2-PSK (TKIP) from the drop-down list box.Pre-Shared Key The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference between the two is that WPA(2)-PSK uses a simple common password, instead of user-specific credentials.Type a pre-shared key from 8 to 63 case-sensitive ASCII characters (including spaces and symbols).
Chapter 6 The WIFI Configuration ScreenUser’s Guide686.2.4  Wireless LAN Advanced Setup To configure advanced wireless settings, click the Advanced Setup (進階模式 ) button in the General screen. The screen appears as shown.Figure 23   Advanced( 進階) > WIFI Configuration(WIFI 設定) > General > Advanced Setup ( 進階模式 )The following table describes the labels in this screen. Table 21   Advanced( 進階 ) > WIFI Configuration(WIFI 設定 ) > General( 一般 ) > Advanced Setup (進階模式 )LABEL DESCRIPTIONWireless Advanced SetupRTS/CTS Threshold Enter a value between 0 and 2432. Fragmentation Threshold It is the maximum data fragment size that can be sent. Enter a value between 256 and 2432. Preamble Select a preamble type. Choices are Long, Short or Dynamic. The default setting is Long. See the appendix for more information.802.11 Mode Select 802.11b Only to allow only IEEE 802.11b compliant WLAN devices to associate with the WiMAX Modem.Select 802.11g Only to allow only IEEE 802.11g compliant WLAN devices to associate with the WiMAX Modem.Select Mixed to allow either IEEE 802.11b or IEEE 802.11g compliant WLAN devices to associate with the WiMAX Modem. The transmission rate of your WiMAX Modem might be reduced. Apply ( 套用 )Click Apply ( 套用 ) to save your changes back to the WiMAX Modem.Cancel ( 重設 )Click Cancel ( 重設 ) to reload the previous configuration for this screen.Back ( 上一步 )Click this to return to the previous screen without saving changes.
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 696.3  MAC Filter     Use this screen to change your WiMAX Modem’s MAC filter settings. Click Advanced (進階) > WIFI Configuration (WIFI設定) > MAC Filter. The screen appears as shown.Figure 24   Advanced ( 進階 ) > WIFI Configuration (WIFI 設定 ) > MAC Filter
Chapter 6 The WIFI Configuration ScreenUser’s Guide70The following table describes the labels in this screen.6.4  Wireless LAN Technical ReferenceThis section discusses wireless LANs in depth. For more information, see the appendix.Table 22   Advanced( 進階 ) > WIFI Configuration(WIFI 設定 ) > MAC FilterLABEL DESCRIPTIONActive MAC Filter ( 啟用MAC 位址過濾)Select the check box to enable MAC address filtering.Filter Action (過濾動作 )Define the filter action for the list of MAC addresses in the MAC Address table. Select Allow (允許) to permit access to the WiMAX Modem, MAC addresses not listed will be denied access to the WiMAX Modem. Select Deny ( 拒絕 ) to block access to the WiMAX Modem, MAC addresses not listed will be allowed to access the WiMAX Modem.Set ( 設定 )This is the index number of the MAC address.MAC Address (MAC 位址 )Enter the MAC addresses of the wireless devices that are allowed or denied access to the WiMAX Modem in these address fields. Enter the MAC addresses in a valid MAC address format, that is, six hexadecimal character pairs, for example, 12:34:56:78:9a:bc.Apply (套用)Click Apply ( 套用 ) to save your changes back to the WiMAX Modem.Cancel ( 重設)Click Cancel ( 重設 ) to reload the previous configuration for this screen.
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 716.4.1  Additional Wireless TermsThe following table describes some wireless network terms and acronyms used in the WiMAX Modem’s Web Configurator.6.4.2  Wireless Security OverviewThe following sections introduce different types of wireless security you can set up in the wireless network.6.4.2.1  SSIDNormally, the WiMAX Modem acts like a beacon and regularly broadcasts the SSID in the area. You can hide the SSID instead, in which case the WiMAX Modem does not broadcast the SSID. In addition, you should change the default SSID to something that is difficult to guess.This type of security is fairly weak, however, because there are ways for unauthorized wireless devices to get the SSID. In addition, unauthorized wireless devices can still see the information that is sent in the wireless network.6.4.2.2  MAC Address FilterEvery device that can use a wireless network has a unique identification number, called a MAC address.1 A MAC address is usually written using twelve hexadecimal Table 23   Additional Wireless TermsTERM DESCRIPTIONRTS/CTS Threshold In a wireless network which covers a large area, wireless devices are sometimes not aware of each other’s presence.  This may cause them to send information to the AP at the same time and result in information colliding and not getting through.By setting this value lower than the default value, the wireless devices must sometimes get permission to send information to the WiMAX Modem. The lower the value, the more often the devices must get permission.If this value is greater than the fragmentation threshold value (see below), then wireless devices never have to get permission to send information to the WiMAX Modem.Preamble A preamble affects the timing in your wireless network. There are two preamble modes: long and short. If a device uses a different preamble mode than the WiMAX Modem does, it cannot communicate with the WiMAX Modem.Authentication The process of verifying whether a wireless device is allowed to use the wireless network.Fragmentation Threshold A small fragmentation threshold is recommended for busy networks, while a larger threshold provides faster performance if the network is not very busy.
Chapter 6 The WIFI Configuration ScreenUser’s Guide72characters2; for example, 00A0C5000002 or 00:A0:C5:00:00:02. To get the MAC address for each device in the wireless network, see the device’s User’s Guide or other documentation.You can use the MAC address filter to tell the WiMAX Modem which devices are allowed or not allowed to use the wireless network. If a device is allowed to use the wireless network, it still has to have the correct information (SSID, channel, and security). If a device is not allowed to use the wireless network, it does not matter if it has the correct information.This type of security does not protect the information that is sent in the wireless network. Furthermore, there are ways for unauthorized wireless devices to get the MAC address of an authorized device. Then, they can use that MAC address to use the wireless network.6.4.2.3  User AuthenticationAuthentication is the process of verifying whether a wireless device is allowed to use the wireless network. You can make every user log in to the wireless network before they can use it. However, every device in the wireless network has to support IEEE 802.1x to do this.For wireless networks, you can store the user names and passwords for each user in a RADIUS server. This is a server used in businesses more than in homes. If you do not have a RADIUS server, you cannot set up user names and passwords for your users.Unauthorized wireless devices can still see the information that is sent in the wireless network, even if they cannot use the wireless network. Furthermore, there are ways for unauthorized wireless users to get a valid user name and password. Then, they can use that user name and password to use the wireless network.6.4.2.4  EncryptionWireless networks can use encryption to protect the information that is sent in the wireless network. Encryption is like a secret code. If you do not know the secret code, you cannot understand the message.1. Some wireless devices, such as scanners, can detect wireless networks but cannot use wireless networks. These kinds of wireless devices might not have MAC addresses.2. Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 73The types of encryption you can choose depend on the type of authentication. (See Section 6.4.2.3 on page 72 for information about this.)For example, if the wireless network has a RADIUS server, you can choose WPA or WPA2. If users do not log in to the wireless network, you can choose no encryption, Static WEP, WPA-PSK, or WPA2-PSK.Usually, you should set up the strongest encryption that every device in the wireless network supports. For example, suppose you have a wireless network with the WiMAX Modem and you do not have a RADIUS server. Therefore, there is no authentication. Suppose the wireless network has two devices. Device A only supports WEP, and device B supports WEP and WPA. Therefore, you should set up Static WEP in the wireless network.Note: It is recommended that wireless networks use WPA-PSK, WPA, or stronger encryption. The other types of encryption are better than none at all, but it is still possible for unauthorized wireless devices to figure out the original information pretty quickly.When you select WPA2 or WPA2-PSK in your WiMAX Modem, 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 WiMAX Modem.Many types of encryption use a key to protect the information in the wireless network. The longer the key, the stronger the encryption. Every device in the wireless network must have the same key.6.4.3  MBSSIDTraditionally, you needed to use different APs to configure different Basic Service Sets (BSSs). As well as the cost of buying extra APs, there was also the possibility of channel interference. The WiMAX Modem’s MBSSID (Multiple Basic Service Set IDentifier) function allows you to use one access point to provide several BSSs simultaneously. You can then assign varying QoS priorities and/or security modes to different SSIDs.Table 24   Types of Encryption for Each Type of AuthenticationNO AUTHENTICATION RADIUS SERVERWeakest No SecurityWPAStatic WEPWPA-PSKStrongest WPA2-PSK WPA2
Chapter 6 The WIFI Configuration ScreenUser’s Guide74Wireless devices can use different BSSIDs to associate with the same AP.6.4.3.1  Notes on Multiple BSSs• A maximum of eight BSSs are allowed on one AP simultaneously.• You must use different keys for different BSSs. If two wireless devices have different BSSIDs (they are in different BSSs), but have the same keys, they may hear each other’s communications (but not communicate with each other).• MBSSID should not replace but rather be used in conjunction with 802.1x security.6.4.4  Wireless Distribution System (WDS)The WiMAX Modem can act as a wireless network bridge and establish WDS (Wireless Distribution System) links with other APs. You need to know the MAC addresses of the APs you want to link to. Once the security settings of peer sides match one another, the connection between devices is made.At the time of writing, WDS security is compatible with other ZyXEL access points only. Refer to your other access point’s documentation for details.The following example illustrates how WDS link works between APs. Notebook computer A is a wireless client connecting to access point AP 1. AP 1 has no wired Internet connection, but can establish a WDS link with access point AP 2, which does. When AP 1 has a WDS link with AP 2, the notebook computer can access the Internet through AP 2.Figure 25   WDS Link Example6.4.5  WiFi Protected SetupYour WiMAX Modem supports WiFi Protected Setup (WPS), which is an easy way to set up a secure wireless network. WPS is an industry standard specification, defined by the WiFi Alliance.WPS allows you to quickly set up a wireless network with strong security, without having to configure security settings manually. Each WPS connection works between two devices. Both devices must support WPS (check each device’s documentation to make sure). WDSAP 2AP 1A
 Chapter 6 The WIFI Configuration ScreenUser’s Guide 75Depending on the devices you have, you can either press a button (on the device itself, or in its configuration utility) or enter a PIN (a unique Personal Identification Number that allows one device to authenticate the other) in each of the two devices. When WPS is activated on a device, it has two minutes to find another device that also has WPS activated. Then, the two devices connect and set up a secure network by themselves.6.4.5.1  Push Button ConfigurationWPS Push Button Configuration (PBC) is initiated by pressing a button on each WPS-enabled device, and allowing them to connect automatically. You do not need to enter any information. Not every WPS-enabled device has a physical WPS button. Some may have a WPS PBC button in their configuration utilities instead of or in addition to the physical button.Take the following steps to set up WPS using the button.1Ensure that the two devices you want to set up are within wireless range of one another. 2Look for a WPS button on each device. If the device does not have one, log into its configuration utility and locate the button (see the device’s User’s Guide for how to do this). The WiMAX Modem’s WPS button is in the rear panel as shown next.Figure 26   The WPS Button on the WiMAX Modem3Press the button on one of the devices (it doesn’t matter which). For the WiMAX Modem you must press the WPS button for more than three seconds.4Within two minutes, press the button on the other device. The registrar sends the network name (SSID) and security key through an secure connection to the enrollee.If you need to make sure that WPS worked, check the list of associated wireless clients in the AP’s configuration utility. If you see the wireless client in the list, WPS was successful.
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User’s Guide 77CHAPTER  7 The WAN Configuration Screens7.1  Overview Use the ADVANCED > WAN Configuration screens to set up your WiMAX Modem’s Wide Area Network (WAN) or Internet features.A Wide Area Network (or WAN) links geographically dispersed locations to other networks or the Internet. A WAN configuration can include switched and permanent telephone circuits, terrestrial radio systems and satellite systems.7.1.1  What You Can Do in This Chapter•The Internet Connection screen (Section 7.2 on page 79) lets you set up your WiMAX Modem’s Internet settings.•The WiMAX Configuration screen (Section 7.3 on page 82) lets set up the frequencies used by your WiMAX Modem.7.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.WiMAX WiMAX (Worldwide Interoperability for Microwave Access) is the IEEE 802.16 wireless networking standard, which provides high-bandwidth, wide-range wireless service across wireless Metropolitan Area Networks (MANs). ZyXEL is a member of the WiMAX Forum, the industry group dedicated to promoting and certifying interoperability of wireless broadband products.In a wireless MAN, a wireless-equipped computer is known either as a mobile station (MS) or a subscriber station (SS). Mobile stations use the IEEE 802.16e standard and are able to maintain connectivity while switching their connection from one base station to another base station (handover) while subscriber stations use other standards that do not have this capability (IEEE 802.16-2004, for
Chapter 7 The WAN Configuration ScreensUser’s Guide78example). The following figure shows an MS-equipped notebook computer MS1 moving from base station BS1’s coverage area and connecting to BS2.Figure 27   WiMax: Mobile StationWiMAX technology uses radio signals (around 2 to 10 GHz) to connect subscriber stations and mobile stations to local base stations. Numerous subscriber stations and mobile stations connect to the network through a single base station (BS), as in the following figure. Figure 28   WiMAX: Multiple Mobile StationsA base station's coverage area can extend over many hundreds of meters, even under poor conditions. A base station provides network access to subscriber stations and mobile stations, and communicates with other base stations.The radio frequency and bandwidth of the link between the WiMAX Modem and the base station are controlled by the base station. The WiMAX Modem follows the base station’s configuration. AuthenticationWhen authenticating a user, the base station uses a third-party RADIUS or Diameter server known as an AAA (Authentication, Authorization and Accounting) server to authenticate the mobile or subscriber stations.
 Chapter 7 The WAN Configuration ScreensUser’s Guide 79The following figure shows a base station using an AAA server to authenticate mobile station MS, allowing it to access the Internet.Figure 29   Using an AAA ServerIn this figure, the dashed arrow shows the PKM (Privacy Key Management) secured connection between the mobile station and the base station, and the solid arrow shows the EAP secured connection between the mobile station, the base station and the AAA server. See the WiMAX security appendix for more details.7.2  Internet ConnectionClick ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) to set up your WiMAX Modem’s Internet settings.
Chapter 7 The WAN Configuration ScreensUser’s Guide80Note: Not all WiMAX Modem models have all the fields shown here.Figure 30   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > Internet ConnectionThe following table describes the labels in this screen.  Table 25   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > Internet Connection > ISP Parameters for Internet Access ()LABEL DESCRIPTIONISP Parameters for Internet Access ( 存取網際網路的 ISP 參數 )User (使用者名稱) Use this field to enter the username associated with your Internet access account. You can enter up to 61 printable ASCII characters.Password ( 密碼 ) Use this field to enter the password associated with your Internet access account. You can enter up to 47 printable ASCII characters.Anonymous Identity ( 匿名身份)Enter the anonymous identity provided by your Internet Service Provider. Anonymous identity (also known as outer identity) is used with EAP-TTLS encryption. The anonymous identity is used to route your authentication request to the correct authentication server, and does not reveal your real user name. Your real user name and password are encrypted in the TLS tunnel, and only the anonymous identity can be seen.Leave this field blank if your ISP did not give you an anonymous identity to use.PKM This field displays the Privacy Key Management version number. PKM provides security between the WiMAX Modem and the base station. At the time of writing, the WiMAX Modem supports PKMv2 only. See the WiMAX security appendix for more information.
 Chapter 7 The WAN Configuration ScreensUser’s Guide 81Authentication (認證 )This field displays the user authentication method. Authentication is the process of confirming the identity of a mobile station (by means of a username and password, for example).Check with your service provider if you are unsure of the correct setting for your account. Choose from the following user authentication methods:•TTLS (Tunnelled Transport Layer Security)•TLS (Transport Layer Security)Note: Not all WiMAX Modems support TLS authentication. Check with your service provider for details.TTLS Inner EAP This field displays the type of secondary authentication method. Once a secure EAP-TTLS connection is established, the inner EAP is the protocol used to exchange security information between the mobile station, the base station and the AAA server to authenticate the mobile station. See the WiMAX security appendix for more details.This field is available only when TTLS is selected in the Authentication field.The WiMAX Modem supports the following inner authentication types:•CHAP (Challenge Handshake Authentication Protocol)•MSCHAP (Microsoft CHAP)•MSCHAPV2 (Microsoft CHAP version 2)•PAP (Password Authentication Protocol)Auth Mode ( 認證模式 )Select the authentication mode from the drop-down list box.This field is not available in all WiMAX Modems. Check with your service provider for details.The WiMAX Modem supports the following authentication modes:•User Only• Device Only with Cert• Certs and User AuthenticationCertificate (憑證) This is the security certificate the WiMAX Modem uses to authenticate the AAA server. Use the TOOLS ( 工具 ) > Certificate (憑證 ) > Trusted CAs screen to import certificates to the WiMAX Modem.WAN IP Address Assignment ( 指定 WAN IP 位址 )Get automatically from ISP (Default) ( 自動從ISP 取得 ( 預設 ))Select this if you have a dynamic IP address. A dynamic IP address is not fixed; the ISP assigns you a different one each time you connect to the Internet. Table 25   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > Internet Connection > ISP Parameters for Internet Access () (continued)LABEL DESCRIPTION
Chapter 7 The WAN Configuration ScreensUser’s Guide827.3  WiMAX ConfigurationClick ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > WiMAX Configuration to set up the frequencies used by your WiMAX Modem.In a WiMAX network, a mobile or subscriber station must use a radio frequency supported by the base station to communicate. When the WiMAX Modem looks for a connection to a base station, it can search a range of frequencies.Use Fixed IP Address ( 使用固定IP 位址 )A static IP address is a fixed IP that your ISP gives you. Type your ISP assigned IP address in the IP Address (IP 位址 ) field below. IP Subnet Mask (IP 子網路遮罩 )Enter a subnet mask in dotted decimal notation. Refer to the appendices to calculate a subnet mask If you are implementing subnetting.Gateway IP Address ( 閘道 IP位址 )Specify a gateway IP address (supplied by your ISP).Apply ( 套用 ) Click to save your changes.Reset ( 重設 ) Click to restore your previously saved settings.Table 25   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > Internet Connection > ISP Parameters for Internet Access () (continued)LABEL DESCRIPTION
 Chapter 7 The WAN Configuration ScreensUser’s Guide 83Radio frequency is measured in Hertz (Hz). Figure 31   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > WiMAX Configuration (WiMAX 設定 )Table 26   Radio Frequency Conversion1 kHz = 1000 Hz1 MHz = 1000 kHz (1000000 Hz)1 GHz = 1000 MHz (1000000 kHz)
Chapter 7 The WAN Configuration ScreensUser’s Guide84The following table describes the labels in this screen.Table 27   ADVANCED ( 進階 ) > WAN Configuration (WAN 設定 ) > WiMAX Configuration (WiMAX 設定 )LABEL DESCRIPTIONBandwidth & Frequency ( 頻寬 &頻率 )These fields show the downlink frequency settings in kilohertz (kHz).Enter the width of a frequency band (only support 5MHz & 10MHz) the WiMAX Modem can use for                                                   transmitting and receiving data. Enter values in the Frequency ( 頻率) fields to have the WiMAX Modem scan these frequencies for available channels in ascending numerical order.Contact your service provider for the bandwidth value and the supported frequencies.Network Access Provider ID (網路接取提供者 ID)Enter the primary ( 主要的 ) network access provider ID for the WAN connection. You can also enter the substitude access provider IDs for the connection backup when the primary one is down.Base Station ( 基地台 )Select ALU to connect this WiMAX Modem to an Alcatel-Lucent WiMAX base station.Select NEC to connect this WiMAX Modem to a NEC WiMAX base station.Enabling Functions (功能啟用 )Select one or multiple check box(es) to enable the function(s). Configure this according to what you were given by your service provider.•HARQ: Select this to enable the Hybrid Automatic Repeat-Request feature on the WiMAX Modem. HARQ works in the physical (PHY) layer and provides radio link error detection and correction.•ARQ: Select this to enable the Automatic Repeat-Request feature on the WiMAX Modem. ARQ works in the MAC layer and provides error correction by scheduling re-transmission.Both HARQ and ARQ are designed to provide reliable transmission over a wireless connection. When a receiver detects errors, it will notify the sender to retransmit the data within a certain period.•MIMO: Select this to enable the Multple Input Multiple Ouput (MIMO) feature on the WiMAX Modem.•Idle_Mode: Select this to have the WiMAX Modem enter the idle mode after it has no traffic passing through for a pre-defined period. Make sure your base station also supports this before selecting this.Apply ( 套用 ) Click to save your changes.Reset ( 重設 ) Click to restore your previously saved settings.
 Chapter 7 The WAN Configuration ScreensUser’s Guide 857.3.1  Frequency RangesThe following figure shows the WiMAX Modem searching a range of frequencies to find a connection to a base station. Figure 32   Frequency RangesIn this figure, A is the WiMAX frequency range. “WiMAX frequency range” refers to the entire range of frequencies the WiMAX Modem is capable of using to transmit and receive (see the Product Specifications appendix for details). In the figure, B shows the operator frequency range. This is the range of frequencies within the WiMAX frequency range supported by your operator (service provider).The operator range is subdivided into bandwidth steps. In the figure, each C is a bandwidth step.The arrow D shows the WiMAX Modem searching for a connection.Have the WiMAX Modem search only certain frequencies by configuring the downlink frequencies. Your operator can give you information on the supported frequencies. The downlink frequencies are points of the frequency range your WiMAX Modem searches for an available connection. Use the Site Survey screen to set these bands. You can set the downlink frequencies anywhere within the WiMAX frequency range. In this example, the downlink frequencies have been set to search all of the operator range for a connection.7.3.2  Configuring Frequency SettingsYou need to set the WiMAX Modem to scan one or more specific radio frequencies to find an available connection to a WiMAX base station. Use the WiMAX Configuration (WiMAX 設定 ) screen to define the radio frequencies to be searched for available wireless connections. See Section 7.3.3 on page 86 for an example of using the WiMAX Configuration (WiMAX 設定 ) screen.
Chapter 7 The WAN Configuration ScreensUser’s Guide86Note: It may take several minutes for the WiMAX Modem to find a connection.• The WiMAX Modem searches the DL Frequency ( 頻率 ) settings in ascending numerical order, from [1] to [9].• If you enter a 0 in a DL Frequency (頻率) field, the WiMAX Modem immediately moves on to the next DL Frequency ( 頻率 ) field.• When the WiMAX Modem connects to a base station, the values in this screen are automatically set to the base station’s frequency. The next time the WiMAX Modem searches for a connection, it searches only this frequency. If you want the WiMAX Modem to search other frequencies, enter them in the DL Frequency ( 頻率 ) fields.The following table describes some examples of DL Frequency ( 頻率 ) settings.7.3.3  Using the WiMAX Frequency ScreenIn this example, your Internet service provider has given you a list of supported frequencies: 2.51, 2.525, 2.6, and 2.625. 1In the DL Frequency [1] (頻率[1]) field, enter 2510000 (2510000 kilohertz (kHz) is equal to 2.51 gigahertz).2In the DL Frequency [2] (頻率 [2]) field, enter 2525000.3In the DL Frequency [3] (頻率[3]) field, enter 2600000.4In the DL Frequency [4] (頻率[4]) field, enter 2625000.Leave the rest of the DL Frequency ( 頻率 ) fields at zero. Table 28   DL Frequency Example SettingsEXAMPLE 1 EXAMPLE 2DL Frequency [1] (頻率 [1]): 2500000 2500000DL Frequency [2] (頻率 [2]): 2550000 2550000DL Frequency [3] (頻率 [3]): 0 2600000DL Frequency [4] (頻率 [4]): 00The WiMAX Modem searches at 2500000 kHz, and then searches at 2550000 kHz if it has not found a connection.The WiMAX Modem searches at 2500000 kHz and then at 2550000 kHz if it has not found an available connection. If it still does not find an available connection, it searches at 2600000 kHz.
 Chapter 7 The WAN Configuration ScreensUser’s Guide 875Enter the ID of your service provider you were given in the Service Provider ID [1] ( 提供者 ID[1]) field.6Configure the Base Station ( 基地台 ) (ALU in this example) and Function Enabling ( 功能啟動 ) (All of the four options are selected in this example) fields.The screen appears as follows.Figure 33   Completing the WiMAX Frequency Screen7Click Apply ( 套用 ). The WiMAX Modem stores your settings. When the WiMAX Modem searches for available frequencies, it scans all frequencies from DL Frequency [1] (頻率[1]) to DL Frequency [4] (頻率[4]). When it finds an available connection, the fields in this screen will be automatically set to use that frequency.
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User’s Guide 89CHAPTER  8 The NAT Configuration Screens8.1  OverviewUse these screens to configure port forwarding and trigger ports for the WiMAX Modem. You can also enable and disable SIP, FTP, and H.323 ALG.Network Address Translation (NAT) maps a host’s IP address within one network to a different IP address in another network. For example, you can use a NAT router to map one IP address from your ISP to multiple private IP addresses for the devices in your home network.8.1.1  What You Can Do in This Chapter•The General screen (Section 8.2 on page 90) lets you enable or disable NAT and to allocate memory for NAT and firewall rules.•The Port Forwarding screen (Section 8.3 on page 91) lets you look at the current port-forwarding rules in the WiMAX Modem, and to enable, disable, activate, and deactivate each one.•The Trigger Port screen (Section 8.4 on page 94) lets you maintain trigger port forwarding rules for the WiMAX Modem.
Chapter 8 The NAT Configuration ScreensUser’s Guide908.2  GeneralClick ADVANCED (進階) > NAT Configuration  (NAT設定) > General to enable or disable NAT and to allocate memory for NAT and firewall rules.Figure 34   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > GeneralThe following table describes the labels in this screen.Table 29   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > GeneralLABEL DESCRIPTIONEnable Network Address Translation (啟用網路位址轉譯 )Select this if you want to use port forwarding, trigger ports, or any of the ALG.Max NAT/Firewall Session Per User ( 每一使用者的 NAT/ 防火牆 最大連線數 )When computers use peer to peer applications, such as file sharing applications, they may use a large number of NAT sessions. If you do not limit the number of NAT sessions a single client can establish, this can result in all of the available NAT sessions being used. In this case, no additional NAT sessions can be established, and users may not be able to access the Internet. Each NAT session establishes a corresponding firewall session. Use this field to limit the number of NAT/firewall sessions each client computer can establish through the WiMAX Modem. If your network has a small number of clients using peer to peer applications, you can raise this number to ensure that their performance is not degraded by the number of NAT sessions they can establish. If your network has a large number of users using peer to peer applications, you can lower this number to ensure no single client is using all of the available NAT sessions. Apply ( 套用 )Click to save your changes.Cancel ( 重設 ) Click to return to the previous screen without saving your changes.
 Chapter 8 The NAT Configuration ScreensUser’s Guide 918.3  Port Forwarding A NAT server set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that you can make accessible to the outside world even though NAT makes your whole inside network appear as a single machine to the outside world.Use the ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > Port Forwarding screen to forward incoming service requests to the server(s) on your local network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers. In addition to the servers for specified services, NAT supports a default server. A service request that does not have a server explicitly designated for it is forwarded to the default server. If the default is not defined, the service request is simply discarded.For example, let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), port 80 to another (B in the example) and assign a default server IP address of 192.168.1.35 to a third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet.Figure 35   Multiple Servers Behind NAT Example8.3.1  Port Forwarding OptionsClick ADVANCED (進階 ) > NAT Configuration (NAT 設定) > Port Forwarding to look at the current port-forwarding rules in the WiMAX Modem, and to enable,
Chapter 8 The NAT Configuration ScreensUser’s Guide92disable, activate, and deactivate each one. You can also set up a default server to handle ports not covered by rules.Figure 36   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > Port ForwardingThe following table describes the icons in this screen.The following table describes the labels in this screen.Table 30   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Port ForwardingICON DESCRIPTIONEditClick to edit this item.DeleteClick to delete this item.Table 31   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Port ForwardingLABEL DESCRIPTIONDefault Server Setup ( 預設伺服器設定 )Default Server (預設伺服器 )Enter the IP address of the server to which the WiMAX Modem should forward packets for ports that are not specified in the Port Forwarding section below or in the TOOLS > Remote MGMT screens. Enter 0.0.0.0 if you want the WiMAX Modem to discard these packets instead.Port Forwarding ( 連接埠轉遞 )#The number of the item in this list.Active ( 啟動 )Select this to enable this rule. Clear this to disable this rule.Name ( 名稱 )This field displays the name of the rule. It does not have to be unique.Start Port ( 起始埠)This field displays the beginning of the range of port numbers forwarded by this rule.
 Chapter 8 The NAT Configuration ScreensUser’s Guide 938.3.2  Port Forwarding Rule SetupClick a port forwarding rule’s Edit icon in the ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > Port Forwarding screen to activate, deactivate, or edit it.Figure 37   ADVANCED (進階) > NAT Configuration (NAT設定)  > Port Forwarding > Rule SetupThe following table describes the labels in this screen.End Port (結束埠)This field displays the end of the range of port numbers forwarded by this rule. If it is the same as the Start Port, only one port number is forwarded.Server IP Address ( 伺服器)This field displays the IP address of the server to which packet for the selected port(s) are forwarded.Action ( 啟動 ) Click the Edit icon to set up a port forwarding rule or alter the configuration of an existing port forwarding rule.Click the Delete icon to remove an existing port forwarding rule. Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 31   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Port Forwarding LABEL DESCRIPTIONTable 32   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Port Forwarding > Rule SetupLABEL DESCRIPTIONActive Select this to enable this rule. Clear this to disable this rule.Service Name Enter a name to identify this rule. You can use 1 - 31 printable ASCII characters, or you can leave this field blank. It does not have to be a unique name.
Chapter 8 The NAT Configuration ScreensUser’s Guide948.4  Trigger PortSome services use a dedicated range of ports on the client side and a dedicated range of ports on the server side. With regular port forwarding you set a forwarding port in NAT to forward a service (coming in from the server on the WAN) to the IP address of a computer on the client side (LAN). The problem is that port forwarding only forwards a service to a single LAN IP address. In order to use the same service on a different LAN computer, you have to manually replace the LAN computer's IP address in the forwarding port with another LAN computer's IP address, Trigger port forwarding solves this problem by allowing computers on the LAN to dynamically take turns using the service. The WiMAX Modem records the IP address of a LAN computer that sends traffic to the WAN to request a service with a specific port number and protocol (a "trigger" port). When the WiMAX Modem's WAN port receives a response with a specific port number and protocol ("incoming" port), the WiMAX Modem forwards the traffic to the LAN IP address of the computer that sent the request. After that computer’s connection for that service closes, another computer on the LAN can use the service in the same manner. This way you do not need to configure a new IP address each time you want a different LAN computer to use the application.Start PortEnd PortEnter the port number or range of port numbers you want to forward to the specified server.To forward one port number, enter the port number in the Start Port and End Port fields.To forward a range of ports,• enter the port number at the beginning of the range in the Start Port field• enter the port number at the end of the range in the End Port field.Server IP Address Enter the IP address of the server to which to forward packets for the selected port number(s). This server is usually on the LAN.Apply ( 套用 )Click to save your changes.Cancel ( 取消 ) Click to return to the previous screen without saving your changes.Table 32   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Port Forwarding > Rule Setup (continued)LABEL DESCRIPTION
 Chapter 8 The NAT Configuration ScreensUser’s Guide 95Click ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 ) > Trigger Port to maintain trigger port forwarding rules for the WiMAX Modem.Figure 38   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Trigger PortThe following table describes the labels in this screen.Table 33   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Trigger PortLABEL DESCRIPTION#The number of the item in this list.Name ( 名稱 )Enter a name to identify this rule. You can use 1 - 15 printable ASCII characters, or you can leave this field blank. It does not have to be a unique name.Incoming ( 內送埠 )Start Port( 起始埠 ) End Port ( 結束埠 )Enter the incoming port number or range of port numbers you want to forward to the IP address the WiMAX Modem records.To forward one port number, enter the port number in the Start Port (起始埠 ) and End Port ( 結束埠 ) fields.To forward a range of ports,• enter the port number at the beginning of the range in the Start Port ( 起始埠 ) field• enter the port number at the end of the range in the End Port ( 結束埠) field.If you want to delete this rule, enter zero in the Start Port (起始埠) and End Port ( 結束埠 ) fields.Trigger ( 觸發埠 )
Chapter 8 The NAT Configuration ScreensUser’s Guide968.4.1  Trigger Port Forwarding ExampleThe following is an example of trigger port forwarding. In this example, J is Jane’s computer and S is the Real Audio server.Figure 39   Trigger Port Forwarding Example1Jane requests a file from the Real Audio server (port 7070).2Port 7070 is a “trigger” port and causes the WiMAX Modem to record Jane’s computer IP address. The WiMAX Modem associates Jane's computer IP address with the "incoming" port range of 6970-7170.3The Real Audio server responds using a port number ranging between 6970-7170.4The WiMAX Modem forwards the traffic to Jane’s computer IP address. Start Port (起始埠 ) End Port ( 結束埠 )Enter the outgoing port number or range of port numbers that makes the WiMAX Modem record the source IP address and assign it to the selected incoming port number(s).To select one port number, enter the port number in the Start Port and End Port fields.To select a range of ports,• enter the port number at the beginning of the range in the Start Port field• enter the port number at the end of the range in the End Port field.If you want to delete this rule, enter zero in the Start Port and End Port fields.Apply ( 套用 )Click to save your changes.Cancel ( 重設 ) Click to return to the previous screen without saving your changes.Table 33   ADVANCED ( 進階 ) > NAT Configuration (NAT 設定 )  > Trigger Port LABEL DESCRIPTION
 Chapter 8 The NAT Configuration ScreensUser’s Guide 975Only Jane can connect to the Real Audio server until the connection is closed or times out. The WiMAX Modem times out in three minutes with UDP (User Datagram Protocol), or two hours with TCP/IP (Transfer Control Protocol/Internet Protocol). Two points to remember about trigger ports:1Trigger events only happen on data that is coming from inside the WiMAX Modem and going to the outside.2If an application needs a continuous data stream, that port (range) will be tied up so that another computer on the LAN can’t trigger it.
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User’s Guide 99CHAPTER  9 The System ConfigurationScreens9.1  OverviewClick ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) to set up general system settings, change the system mode, change the password, configure the DDNS server settings, and set the current date and time.9.1.1  What You Can Do in This Chapter•The Dynamic DNS screen (Section 9.2 on page 100) lets you set up the WiMAX Modem as a dynamic DNS client.•The Firmware screen (Section 9.3 on page 102) lets you upload new firmware to the WiMAX Modem.•The Configuration screen (Section 9.4 on page 104) lets you back up or restore the configuration of the WiMAX Modem.•The Restart screen (Section 9.5 on page 105) lets you restart your WiMAX Modem from within the web configurator.9.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.System NameThe System Name is often used for identification purposes. Because some ISPs check this name you should enter your computer's  "Computer Name". • In Windows 2000: Click Start > Settings > Control Panel and then double-click the System icon. Select the Network Identification tab and then click the Properties button. Note the entry for the Computer Name field and enter it as the System Name.• In Windows XP: Click Start > My Computer > View system information and then click the Computer Name tab. Note the entry in the Full computer name field and enter it as the WiMAX Modem System Name.
Chapter 9 The System Configuration ScreensUser’s Guide100Domain NameThe Domain Name entry is what is propagated to the DHCP clients on the LAN. If you leave this blank, the domain name obtained by DHCP from the ISP is used. While you must enter the host name (System Name) on each individual computer, the domain name can be assigned from the WiMAX Modem via DHCP.DNS Server Address AssignmentUse DNS (Domain Name System) to map a domain name to its corresponding IP address and vice versa, for instance, the IP address of www.zyxel.com is 204.217.0.2. The DNS server is extremely important because without it, you must know the IP address of a computer before you can access it. The WiMAX Modem can get the DNS server addresses in the following ways:1The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you sign up. If your ISP gives you DNS server addresses, enter them in the DNS Server fields in the SYSTEM General screen.2If the ISP did not give you DNS server information, leave the DNS Server fields in the SYSTEM General screen set to 0.0.0.0 for the ISP to dynamically assign the DNS server IP addresses.9.2  Dynamic DNSDynamic DNS allows you to update your current dynamic IP address with one or many dynamic DNS services so that anyone can contact you (in NetMeeting, CU-SeeMe, etc.). You can also access your FTP server or Web site on your own computer using a domain name (for instance myhost.dhs.org, where myhost is a name of your choice) that will never change instead of using an IP address that changes each time you reconnect. Your friends or relatives will always be able to call you even if they don't know your IP address.First of all, you need to have registered a dynamic DNS account with www.dyndns.org. This is for people with a dynamic IP from their ISP or DHCP server that would still like to have a domain name. The Dynamic DNS service provider will give you a password or key.Enabling the wildcard feature for your host causes *.yourhost.dyndns.org to be aliased to the same IP address as yourhost.dyndns.org. This feature is useful if you want to be able to use, for example, www.yourhost.dyndns.org and still reach your hostname.
 Chapter 9 The System Configuration ScreensUser’s Guide 101Note: If you have a private WAN IP address, then you cannot use Dynamic DNS.Click ADVANCED ( 進階 ) > System Configuration (系統組態 ) > Dynamic DNS to set up the WiMAX Modem as a dynamic DNS client.Figure 40   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Dynamic DNSThe following table describes the labels in this screen.Table 34   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Dynamic DNSLABEL DESCRIPTIONDynamic DNS Setup ( 動態 DNS 設定 )Enable Dynamic DNS ( 啟用動態DNS)Select this to use dynamic DNS.Service Provider ( 服務供應商 )Select the name of your Dynamic DNS service provider.Dynamic DNS Type ( 動態 DNS類型 )Select the type of service that you are registered for from your Dynamic DNS service provider.Host Name ( 主機名稱 )Enter the host name. You can specify up to two host names, separated by a comma (",").User Name ( 使用者名稱 )Enter your user name.Password (密碼)Enter the password assigned to you.Enable Wildcard Option (啟用萬用字元選項 )Select this to enable the DynDNS Wildcard feature.Enable offline option ( 啟用離線選項 )( 只限於自訂DNS)This field is available when CustomDNS ( 自訂 DNS) is selected in the DDNS Type ( 動態 DNS 類型 ) field. Select this if your Dynamic DNS service provider redirects traffic to a URL that you can specify while you are off line. Check with your Dynamic DNS service provider.
Chapter 9 The System Configuration ScreensUser’s Guide1029.3  FirmwareClick ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Firmware to upload new firmware to the WiMAX Modem. Firmware files usually use the system model name with a "*.bin" extension, such as "WiMAX Modem.bin". The upload process uses HTTP (Hypertext Transfer Protocol) and may take up to two minutes. After a successful upload, the system will reboot. Contact your service provider for information on available firmware upgrades.Note: Only use firmware for your WiMAX Modem’s specific model.Figure 41   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > FirmwareIP Address Update Policy (IP 位址更新原則 )Use WAN IP Address ( 使用WAN IP 位址 )Select this if you want the WiMAX Modem to update the domain name with the WAN port's IP address.Dynamic DNS server auto detect IP address ( 動態DNS 伺服器自動偵測 IP 位址 )Select this if you want the DDNS server to update the IP address of the host name(s) automatically. Select this option when there are one or more NAT routers between the WiMAX Modem and the DDNS server.Note: The DDNS server may not be able to detect the proper IP address if there is an HTTP proxy server between the WiMAX Modem and the DDNS server.Use specified IP address ( 使用指定的 IP 位址 )Select this if you want to use the specified IP address with the host name(s). Then, specify the IP address. Use this option if you have a static IP address.Apply ( 套用 ) Click to save your changes.Reset ( 重設 ) Click to restore your previously saved settings.Table 34   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Dynamic DNS LABEL DESCRIPTION
 Chapter 9 The System Configuration ScreensUser’s Guide 103The following table describes the labels in this screen.9.3.1  The Firmware Upload ProcessWhen the WiMAX Modem uploads new firmware, the process usually takes about two minutes. The device also automatically restarts in this time. This causes a temporary network disconnect.Note: Do not turn off the device while firmware upload is in progress!After two minutes, log in again, and check your new firmware version in the Status screen. You might have to open a new browser window to log in.If the upload is not successful, you will be notified by error message.Click Return to go back to the Firmware screen.Table 35   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > FirmwareLABEL DESCRIPTIONFile Path (檔案路徑)Enter the location of the *.bin file you want to upload, or click Browse... to find it. You must decompress compressed (.zip) files before you can upload them.Browse...  Click this to find the *.bin file you want to upload.Upload  Click this to begin uploading the selected file. This may take up to two minutes.Note: Do not turn off the device while firmware upload is in progress!
Chapter 9 The System Configuration ScreensUser’s Guide1049.4  ConfigurationClick ADVANCED (進階) > System Configuration (系統組態) > Configuration to back up or restore the configuration of the WiMAX Modem. You can also use this screen to reset the WiMAX Modem to the factory default settings.Figure 42   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > ConfigurationThe following table describes the labels in this screen.  Table 36   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > ConfigurationLABEL DESCRIPTIONBackup Configuration ( 備份設定檔 )Backup Click this to save the WiMAX Modem’s current configuration to a file on your computer. Once your device is configured and functioning properly, it is highly recommended that you back up your configuration file before making configuration changes. The backup configuration file is useful if you need to return to your previous settings.Restore Configuration ( 回復設定 )File Path () Enter the location of the file you want to upload, or click Browse... to find it.Browse Click this to find the file you want to upload.Upload Click this to restore the selected configuration file.Note: Do not turn off the device while configuration file upload is in progress.Back to Factory Defaults ( 回復原廠設定值 )Reset Click this to clear all user-entered configuration information and return the WiMAX Modem to its factory defaults. There is no warning screen.
 Chapter 9 The System Configuration ScreensUser’s Guide 1059.4.1  The Restore Configuration ProcessWhen the WiMAX Modem restores a configuration file, the device automatically restarts. This causes a temporary network disconnect. Note: Do not turn off the device while configuration file upload is in progress.If the WiMAX Modem’s IP address is different in the configuration file you selected, you may need to change the IP address of your computer to be in the same subnet as that of the default management IP address (192.168.5.1). See the Quick Start Guide or the appendices for details on how to set up your computer’s IP address.You might have to open a new browser to log in again.If the upload was not successful, you are notified by Configuration Upload Error message:Click Return to go back to the Configuration screen.9.5  RestartClick ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Restart to reboot the WiMAX Modem without turning the power off.Note: Restarting the WiMAX Modem does not affect its configuration.Figure 43   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > RestartThe following table describes the labels in this screen.    Table 37   ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > FirmwareLABEL DESCRIPTIONRestart  Click this button to have the device perform a software restart. The Power LED blinks as it restarts and the shines steadily if the restart is successful.Note: Wait one minute before logging back into the WiMAX Modem after a restart.
Chapter 9 The System Configuration ScreensUser’s Guide1069.5.1  The Restart Process When you click Restart, the the process usually takes about two minutes. Once the restart is complete you can log in again.
107PART IVVoice ScreensThe Service Configuration Screens  (109)The Phone Screens  (127)The Phone Book Screens  (137)
108
User’s Guide 109CHAPTER  10 The Service ConfigurationScreens10.1  OverviewThe VOICE > Service Configuration screens allow you to set up your voice accounts and configure your QoS settings.VoIP (Voice over IP) is the sending of voice signals over the Internet Protocol. This allows you to make phone calls and send faxes over the Internet at a fraction of the cost of using the traditional circuit-switched telephone network. You can also use servers to run telephone service applications like PBX services and voice mail. Internet Telephony Service Provider (ITSP) companies provide VoIP service. A company could alternatively set up an IP-PBX and provide it’s own VoIP service.Circuit-switched telephone networks require 64 kilobits per second (kbps) in each direction to handle a telephone call. VoIP can use advanced voice coding techniques with compression to reduce the required bandwidth.10.1.1  What You Can Do in This Chapter•The SIP Setting screen (Section 10.2 on page 111) lets you setup and maintain your SIP account(s) in the WiMAX Modem.•The Advanced SIP Settings screen (Section 10.2.1 on page 112) lets you set up and maintain advanced settings for each SIP account•The QoS screen (Section 10.3 on page 119) lets you set up and maintain ToS and VLAN settings for the WiMAX Modem.10.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.SIPThe Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol that handles the setting up, altering and tearing down of voice and
Chapter 10 The Service Configuration ScreensUser’s Guide110multimedia sessions over the Internet. SIP signaling is separate from the media for which it handles sessions. The media that is exchanged during the session can use a different path from that of the signaling. SIP handles telephone calls and can interface with traditional circuit-switched telephone networks.SIP IdentitiesA SIP account uses an identity (sometimes referred to as a SIP address). A complete SIP identity is called a SIP URI (Uniform Resource Identifier). A SIP account's URI identifies the SIP account in a way similar to the way an e-mail address identifies an e-mail account. The format of a SIP identity is SIP-Number@SIP-Service-Domain.SIP NumberThe SIP number is the part of the SIP URI that comes before the “@” symbol. A SIP number can use letters like in an e-mail address (johndoe@your-ITSP.com for example) or numbers like a telephone number (1122334455@VoIP-provider.com for example).SIP Service DomainThe SIP service domain of the VoIP service provider (the company that lets you make phone calls over the Internet) is the domain name in a SIP URI. For example, if the SIP address is 1122334455@VoIP-provider.com, then “VoIP-provider.com” is the SIP service domain.SIP Register ServerA SIP register server maintains a database of SIP identity-to-IP address (or domain name) mapping. The register server checks your user name and password when you register. RTPWhen you make a VoIP call using SIP, the RTP (Real time Transport Protocol) is used to handle voice data transfer. See RFC 1889 for details on RTP.Use NATIf you know the NAT router’s public IP address and SIP port number, you can use the Use NAT feature to manually configure the WiMAX Modem to use a them in the SIP messages. This eliminates the need for STUN or a SIP ALG. You must also configure the NAT router to forward traffic with this port number to the WiMAX Modem.
 Chapter 10 The Service Configuration ScreensUser’s Guide 11110.1.3  Before you Begin• Ensure that you have all of your voice account information on hand. If not, contact your voice account service provider to find out which settings in this chapter you should configure in order to use your telephone with the WiMAX Modem.• Connect your WiMAX Modem to the Internet, as described in the Quick Start Guide. If you have not already done so, then you will not be able to test your VoIP settings.10.2  SIP SettingsClick VOICE > Service Configuration > SIP Setting to setup and maintain your SIP account(s) in the WiMAX Modem. Your VoIP or Internet service provider should provide you with your account information. You can also enable and disable each SIP account.Figure 44   VOICE > Service Configuration > SIP SettingThe following table describes the labels in this screen.  Table 38   VOICE > Service Configuration > SIP SettingLABEL DESCRIPTIONSIP Account Select the SIP account you want to see in this screen. If you change this field, the screen automatically refreshes.SIP Settings
Chapter 10 The Service Configuration ScreensUser’s Guide11210.2.1  Advanced SIP SettingsThis section describes the features of the Advanced SIP settings screen.10.2.1.1  STUNSTUN (Simple Traversal of User Datagram Protocol (UDP) through Network Address Translators) allows the WiMAX Modem to find the presence and types of NAT routers and/or firewalls between it and the public Internet. STUN also allows the WiMAX Modem to find the public IP address that NAT assigned, so the WiMAX Active SIP Account Select this if you want the WiMAX Modem to use this account. Clear it if you do not want the WiMAX Modem to use this account.Number Enter your SIP number. In the full SIP URI, this is the part before the @ symbol.  You can use up to 127 printable ASCII characters.SIP Local Port Enter the WiMAX Modem’s listening port number, if your VoIP service provider gave you one. Otherwise, keep the default value.SIP Server Address Enter the IP address or domain name of the SIP server provided by your VoIP service provider. You can use up to 95 printable ASCII characters. It does not matter whether the SIP server is a proxy, redirect or register server.SIP Server Port Enter the SIP server’s listening port number, if your VoIP service provider gave you one. Otherwise, keep the default value.REGISTER Server AddressEnter the IP address or domain name of the SIP register server, if your VoIP service provider gave you one. Otherwise, enter the same address you entered in the SIP Server Address field. You can use up to 95 printable ASCII characters.REGISTER Server Port Enter the SIP register server’s listening port number, if your VoIP service provider gave you one. Otherwise, enter the same port number you entered in the SIP Server Port field.SIP Service Domain Enter the SIP service domain name. In the full SIP URI, this is the part after the @ symbol.  You can use up to 127 printable ASCII Extended set characters.Send Caller ID Select this if you want to send identification when you make VoIP phone calls. Clear this if you do not want to send identification.AuthenticationUser Name Enter the user name for registering this SIP account, exactly as it was given to you. You can use up to 95 printable ASCII characters.Password Enter the user name for registering this SIP account, exactly as it was given to you. You can use up to 95 printable ASCII Extended set characters.Show Advanced Setup Click this to display the advanced settings for this SIP account in this screen for editing.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 38   VOICE > Service Configuration > SIP Setting (continued)LABEL DESCRIPTION
 Chapter 10 The Service Configuration ScreensUser’s Guide 113Modem can embed it in the SIP data stream. STUN does not work with symmetric NAT routers or firewalls. See RFC 3489 for details on STUN.The following figure shows how STUN works. 1The WiMAX Modem (A) sends SIP packets to the STUN server (B).2The STUN server (B) finds the public IP address and port number that the NAT router used on the WiMAX Modem’s SIP packets and sends them to the WiMAX Modem.3The WiMAX Modem uses the public IP address and port number in the SIP packets that it sends to the SIP server (C).Figure 45   STUN10.2.1.2  Outbound ProxyYour VoIP service provider may host a SIP outbound proxy server to handle all of the WiMAX Modem’s VoIP traffic. This allows the WiMAX Modem to work with any type of NAT router and eliminates the need for STUN or a SIP ALG. Turn off a SIP ALG on a NAT router in front of the WiMAX Modem to keep it from re-translating the IP address (since this is already handled by the outbound proxy server).10.2.1.3  Voice CodingA codec (coder/decoder) codes analog voice signals into digital signals and decodes the digital signals back into voice signals. The WiMAX Modem supports the following codecs.•G.711 is a Pulse Code Modulation (PCM) waveform codec. PCM measures analog signal amplitudes at regular time intervals (sampling) and converts them into digital bits (quantization). Quantization “reads” the analog signal and then “writes” it to the nearest digital value. For this reason, a digital sample is usually slightly different from its analog original (this difference is known as “quantization noise”). G.711 provides excellent sound quality but requires 64kbps of bandwidth.ABCNAT1
Chapter 10 The Service Configuration ScreensUser’s Guide114•G.723 is an Adaptive Differential Pulse Code Modulation (ADPCM) waveform codec. Differential (or Delta) PCM is similar to PCM, but encodes the audio signal based on the difference between one sample and a prediction based on previous samples, rather than encoding the sample’s actual quantized value. Many thousands of samples are taken each second, and the differences between consecutive samples are usually quite small, so this saves space and reduces the bandwidth necessary. However, DPCM produces a high quality signal (high signal-to-noise ratio or SNR) for high difference signals (where the actual signal is very different from what was predicted) but a poor quality signal (low SNR) for low difference signals (where the actual signal is very similar to what was predicted). This is because the level of quantization noise is the same at all signal levels. Adaptive DPCM solves this problem by adapting the difference signal’s level of quantization according to the audio signal’s strength. A low difference signal is given a higher quantization level, increasing its signal-to-noise ratio. This provides a similar sound quality at all signal levels. G.723 provides high quality sound and requires 20 or 40 kbps.•G.729 is an Analysis-by-Synthesis (AbS) hybrid waveform codec. It uses a filter based on information about how the human vocal tract produces sounds. The codec analyzes the incoming voice signal and attempts to synthesize it using its list of voice elements. It tests the synthesized signal against the original and, if it is acceptable, transmits details of the voice elements it used to make the synthesis. Because the codec at the receiving end has the same list, it can exactly recreate the synthesized audio signal.G.729 provides good sound quality and reduces the required bandwidth to 8kbps.10.2.1.4  MWI (Message Waiting Indication)Enable Message Waiting Indication (MWI) enables your phone to give you a message–waiting (beeping) dial tone when you have one or more voice messages. Your VoIP service provider must have a messaging system that sends message-waiting-status SIP packets as defined in RFC 3842.
 Chapter 10 The Service Configuration ScreensUser’s Guide 11510.2.1.5  Advanced SIP Settings OptionsClick Show Advanced Setup in VOICE > Service Configuration > SIP Settings to set up and maintain advanced settings for each SIP account.Figure 46   VOICE > Service Configuration > SIP Settings > Show Advanced SetupThe following table describes the labels in this screen.Table 39   VOICE > Service Configuration > SIP Settings > Show Advanced SetupLABEL DESCRIPTIONSIP Server SettingsURL Type Select whether or not to include the SIP service domain name when the WiMAX Modem sends the SIP number.•SIP - include the SIP service domain name•TEL - do not include the SIP service domain name
Chapter 10 The Service Configuration ScreensUser’s Guide116Expiration Duration Enter the number of seconds your SIP account is registered with the SIP register server before it is deleted. The WiMAX Modem automatically tries to re-register your SIP account when one-half of this time has passed. (The SIP register server might have a different expiration.)Register Re-send timer Enter the number of seconds the WiMAX Modem waits before it tries again to register the SIP account, if the first try failed or if there is no response.Session Expires Enter the number of seconds the conversation can last before the call is automatically disconnected. Usually, when one-half of this time has passed, the WiMAX Modem or the other party updates this timer to prevent this from happening.Min-SE Enter the minimum number of seconds the WiMAX Modem accepts for a session expiration time when it receives a request to start a SIP session. If the request has a shorter time, the WiMAX Modem rejects it.RTP Port RangeStart PortEnd PortEnter the listening port number(s) for RTP traffic, if your VoIP service provider gave you this information. Otherwise, keep the default values.To enter one port number, enter the port number in the Start Port and End Port fields.To enter a range of ports:• Type the port number at the beginning of the range in the Start Port field• Type the port number at the end of the range in the End Port field.Voice CompressionPrimary, Secondary, and Third CompressionSelect the type of voice coder/decoder (codec) that you want the WiMAX Modem to use. G.711 provides high voice quality but requires more bandwidth (64 kbps).•G.711A is typically used in Europe.•G.711u is typically used in North America and Japan.•G.723 provides good voice quality, and requires 20 or 40 kbps.•G.729 requires only 8 kbps.The WiMAX Modem must use the same codec as the peer. When two SIP devices start a SIP session, they must agree on a codec.For more on voice compression, see Voice Coding on page 113DTMF Mode Control how the WiMAX Modem handles the tones that your telephone makes when you push its buttons. You should use the same mode your VoIP service provider uses.•RFC 2833 - send the DTMF tones in RTP packets•PCM - send the DTMF tones in the voice data stream. This method works best when you are using a codec that does not use compression (like G.711). Codecs that use compression (like G.729) can distort the tones.•SIP INFO - send the DTMF tones in SIP messagesTable 39   VOICE > Service Configuration > SIP Settings > Show Advanced Setup LABEL DESCRIPTION
 Chapter 10 The Service Configuration ScreensUser’s Guide 117STUNActive Select this if all of the following conditions are satisfied.• There is a NAT router between the WiMAX Modem and the SIP server.• The NAT router is not a SIP ALG.• Your VoIP service provider gave you an IP address or domain name for a STUN server.• Otherwise, clear this field.Server Address Enter the IP address or domain name of the STUN server provided by your VoIP service provider.Server Port Enter the STUN server’s listening port, if your VoIP service provider gave you one. Otherwise, keep the default value.Use NATActive Select this if you want the WiMAX Modem to send SIP traffic to a specific NAT router. You must also configure the NAT router to forward traffic with the specified port to the WiMAX Modem. This eliminates the need for STUN or a SIP ALG.Server Address Enter the public IP address or domain name of the NAT router.Server Port Enter the port number that your SIP sessions use with the public IP address of the NAT router.Outbound ProxyActive Select this if your VoIP service provider has a SIP outbound server to handle voice calls. This allows the WiMAX Modem to work with any type of NAT router and eliminates the need for STUN or a SIP ALG. Turn off any SIP ALG on a NAT router in front of the WiMAX Modem to keep it from re-translating the IP address (since this is already handled by the outbound proxy server).Server Address Enter the IP address or domain name of the SIP outbound proxy server. Server Port Enter the SIP outbound proxy server’s listening port, if your VoIP service provider gave you one. Otherwise, keep the default value.NAT Keep AliveActive Select this to stop NAT routers between the WiMAX Modem and SIP server (a SIP proxy server or outbound proxy server) from dropping the SIP session. The WiMAX Modem does this by sending SIP notify messages to the SIP server based on the specified interval.Keep Alive with SIP Proxy Select this if the SIP server is a SIP proxy server.Keep Alive with Outbound Proxy Select this if the SIP server is an outbound proxy server. You must enable Outbound Proxy to use this.Keep Alive Interval Enter how often (in seconds) the WiMAX Modem should send SIP notify messages to the SIP server.MWI (Message Waiting Indication)Enable Select this if you want to hear a waiting (beeping) dial tone on your phone when you have at least one voice message. Your VoIP service provider must support this feature.Table 39   VOICE > Service Configuration > SIP Settings > Show Advanced Setup LABEL DESCRIPTION
Chapter 10 The Service Configuration ScreensUser’s Guide11810.2.1.6  Custom Tones (IVR)IVR (Interactive Voice Response) is a feature that allows you to use your telephone to interact with the WiMAX Modem. The WiMAX Modem allows you to record custom tones for the Caller Ringing Tone and On Hold Tone functions. The same recordings apply to both the caller ringing and on hold tones. Expiration Time Keep the default value, unless your VoIP service provider tells you to change it. Enter the number of seconds the SIP server should provide the message waiting service each time the WiMAX Modem subscribes to the service. Before this time passes, the WiMAX Modem automatically subscribes again.Fax OptionG.711 Fax Passthrough Select this if the WiMAX Modem should use G.711 to send fax messages. The peer devices must also use G.711.T.38 Fax Relay Select this if the WiMAX Modem should send fax messages as UDP or TCP/IP packets through IP networks. This provides better quality, but it may have inter-operability problems. The peer devices must also use T.38.Call ForwardCall Forward Table Select which call forwarding table you want the WiMAX Modem to use for incoming calls. You set up these tables in VOICE > Phone Book > Incoming Call Policy.Caller RingingEnable Check this box if you want people to hear a customized recording when they call you. Caller Ringing Tone Select the tone you want people to hear when they call you. See Custom Tones (IVR) on page 118 for information on how to record these tones.On HoldEnable Check this box if you want people to hear a customized recording when you put them on hold. On Hold Tone Select the tone you want people to hear when you put them on hold. See Custom Tones (IVR) on page 118 for information on how to record these tones.Hide Advanced Setup Click this to not display these advanced settings in this screen.Table 39   VOICE > Service Configuration > SIP Settings > Show Advanced Setup LABEL DESCRIPTIONTable 40   Custom Tones DetailsLABEL DESCRIPTIONTotal Time for All Tones 128 seconds for all custom tones combinedMaximum Time per Individual Tone  20 secondsTotal Number of Tones Recordable 8You can record up to eight different custom tones but the total time must be 128 seconds or less.
 Chapter 10 The Service Configuration ScreensUser’s Guide 119Use the following steps if you would like to create new tones or change your tones: 1Pick up the phone and press **** on your phone’s keypad and wait for the message that says you are in the configuration menu. 2Press a number from 1101~1108 on your phone followed by the # key.3Play your desired music or voice recording into the receiver’s mouthpiece. Press the # key.4You can continue to add, listen to, or delete tones, or you can hang up the receiver when you are done.Do the following to listen to a custom tone:1Pick up the phone and press **** on your phone’s keypad and wait for the message that says you are in the configuration menu.2Press a number from 1201~1208 followed by the # key to listen to the tone.3You can continue to add, listen to, or delete tones, or you can hang up the receiver when you are done.Do the following to delete a custom tone:1Pick up the phone and press **** on your phone’s keypad and wait for the message that says you are in the configuration menu.2Press a number from 1301~1308 followed by the # key to delete the tone of your choice. Press 14 followed by the # key if you wish to clear all your custom tones.3You can continue to add, listen to, or delete tones, or you can hang up the receiver when you are done.10.3  QoSNetwork traffic can be classified by setting the ToS (Type Of Service) values at the data source (for example, at the WiMAX Modem) so a server can decide the best method of delivery, that is the least cost, fastest route and so on.Virtual Local Area Network (VLAN) allows a physical network to be partitioned into multiple logical networks. Only stations within the same group can communicate with each other.
Chapter 10 The Service Configuration ScreensUser’s Guide120Your WiMAX Modem can add IEEE 802.1Q VLAN ID tags to voice frames that it sends to the network. This allows the WiMAX Modem to communicate with a SIP server that is a member of the same VLAN group. Some ISPs use the VLAN tag to identify voice traffic and give it priority over other traffic.Click VOICE > Service Configuration > QoS to set up and maintain ToS and VLAN settings for the WiMAX Modem. QoS (Quality of Service) refers to both a network's ability to deliver data with minimum delay and the networking methods used to provide bandwidth for real-time multimedia applications.Figure 47   VOICE > Service Configuration > QoSThe following table describes the labels in this screen.Table 41   VOICE > Service Configuration > QoSLABEL DESCRIPTIONTDSSIP TOS Priority Setting Enter the priority for SIP voice transmissions. The WiMAX Modem creates Type of Service priority tags with this priority to voice traffic that it transmits.RTP TOS Priority Setting Enter the priority for RTP voice transmissions. The WiMAX Modem creates Type of Service priority tags with this priority to RTP traffic that it transmits.VLAN TaggingVoice VLAN ID Select this if the WiMAX Modem has to be a member of a VLAN to communicate with the SIP server. Ask your network administrator, if you are not sure. Enter the VLAN ID provided by your network administrator in the field on the right. Your LAN and gateway must be configured to use VLAN tags.Otherwise, clear this field.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
 Chapter 10 The Service Configuration ScreensUser’s Guide 12110.4  Technical ReferenceThe following section contains additional technical information about the WiMAX Modem features described in this chapter.10.4.1  SIP Call ProgressionThe following figure displays the basic steps in the setup and tear down of a SIP call. A calls B. 1A sends a SIP INVITE request to B. This message is an invitation for B to participate in a SIP telephone call. 2B sends a response indicating that the telephone is ringing.3B sends an OK response after the call is answered. 4A then sends an ACK message to acknowledge that B has answered the call. 5Now A and B exchange voice media (talk). 6After talking, A hangs up and sends a BYE request. 7B replies with an OK response confirming receipt of the BYE request and the call is terminated.Table 42   SIP Call ProgressionA B1. INVITE2. Ringing3. OK4. ACK 5.Dialogue (voice traffic)6. BYE7. OK
Chapter 10 The Service Configuration ScreensUser’s Guide12210.4.2  SIP Client ServerSIP is a client-server protocol. A SIP client is an application program or device that sends SIP requests. A SIP server responds to the SIP requests. When you use SIP to make a VoIP call, it originates at a client and terminates at a server. A SIP client could be a computer or a SIP phone. One device can act as both a SIP client and a SIP server. 10.4.3  SIP User Agent A SIP user agent can make and receive VoIP telephone calls. This means that SIP can be used for peer-to-peer communications even though it is a client-server protocol. In the following figure, either A or B can act as a SIP user agent client to initiate a call. A and B can also both act as a SIP user agent to receive the call.Figure 48   SIP User Agent10.4.4  SIP Proxy ServerA SIP proxy server receives requests from clients and forwards them to another server.In the following example, you want to use client device A to call someone who is using client device C. 1The client device (A in the figure) sends a call invitation to the SIP proxy server (B).AB
 Chapter 10 The Service Configuration ScreensUser’s Guide 1232The SIP proxy server forwards the call invitation to C.Figure 49   SIP Proxy Server10.4.5  SIP Redirect ServerA SIP redirect server accepts SIP requests, translates the destination address to an IP address and sends the translated IP address back to the device that sent the request. Then the client device that originally sent the request can send requests to the IP address that it received back from the redirect server. Redirect servers do not initiate SIP requests. In the following example, you want to use client device A to call someone who is using client device C. 1Client device A sends a call invitation for C to the SIP redirect server (B).2The SIP redirect server sends the invitation back to A with C’s IP address (or domain name).ACB12
Chapter 10 The Service Configuration ScreensUser’s Guide1243Client device A then sends the call invitation to client device C.Figure 50   SIP Redirect Server10.4.6  NAT and SIPThe WiMAX Modem must register its public IP address with a SIP register server. If there is a NAT router between the WiMAX Modem and the SIP register server, the WiMAX Modem probably has a private IP address. The WiMAX Modem lists its IP address in the SIP message that it sends to the SIP register server. NAT does not translate this IP address in the SIP message. The SIP register server gets the WiMAX Modem’s IP address from inside the SIP message and maps it to your SIP identity. If the WiMAX Modem has a private IP address listed in the SIP message, the SIP server cannot map it to your SIP identity. See Chapter 8 The NAT Configuration Screens for more information.Use a SIP ALG (Application Layer Gateway), Use NAT, STUN, or outbound proxy to allow the WiMAX Modem to list its public IP address in the SIP messages.10.4.7  DiffServDiffServ is a class of service (CoS) model that marks packets so that they receive specific per-hop treatment at DiffServ-compliant network devices along the route based on the application types and traffic flow. Packets are marked with DiffServ Code Points (DSCPs) indicating the level of service desired. This allows the intermediary DiffServ-compliant network devices to handle the packets differently depending on the code points without the need to negotiate paths or remember state information for every flow. In addition, applications do not have to request a particular service or give advanced notice of where the traffic is going.ACB132
 Chapter 10 The Service Configuration ScreensUser’s Guide 12510.4.8  DSCP and Per-Hop Behavior DiffServ defines a new DS (Differentiated Services) field to replace the Type of Service (TOS) field in the IP header. The DS field contains a 2-bit unused field and a 6-bit DSCP field which can define up to 64 service levels. The following figure illustrates the DS field. Figure 51   DiffServ: Differentiated Service FieldDSCP is backward compatible with the three precedence bits in the ToS octet so that non-DiffServ compliant, ToS-enabled network device will not conflict with the DSCP mapping. The DSCP value determines the forwarding behavior, the PHB (Per-Hop Behavior), that each packet gets across the DiffServ network. Based on the marking rule, different kinds of traffic can be marked for different priorities of forwarding. Resources can then be allocated according to the DSCP values and the configured policies.DSCP(6-bit)Unused(2-bit)
Chapter 10 The Service Configuration ScreensUser’s Guide126
User’s Guide 127CHAPTER  11 The Phone Screens11.1  OverviewUse the VOICE > Phone screens to configure the volume, echo cancellation, VAD settings and custom tones for the phone port on the WiMAX Modem. You can also select which SIP account to use for making outgoing calls.11.1.1  What You Can Do in This Chapter•The Analog Phone screen (Section 11.2 on page 128) lets you control which SIP accounts each phone uses.•The Common screen (Section 11.3 on page 130) lets you activate and deactivate immediate dialing.•The Region screen (Section 11.4 on page 131) lets you maintain settings that often depend on the region of the world in which the WiMAX Modem is located.11.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.Voice Activity Detection/Silence Suppression/Comfort NoiseVoice Activity Detection (VAD) detects whether or not speech is present. This lets the WiMAX Modem reduce the bandwidth that a call uses by not transmitting “silent packets” when you are not speaking.When using VAD, the WiMAX Modem generates comfort noise when the other party is not speaking. The comfort noise lets you know that the line is still connected as total silence could easily be mistaken for a lost connection.Echo Cancellation G.168 is an ITU-T standard for eliminating the echo caused by the sound of your voice reverberating in the telephone receiver while you talk.
Chapter 11 The Phone ScreensUser’s Guide128Supplementary Phone Services OverviewSupplementary services such as call hold, call waiting, call transfer, etc. are generally available from your VoIP service provider. The WiMAX Modem supports the following services:• Call Hold• Call Waiting• Making a Second Call• Call Transfer• Call Forwarding• Three-Way Conference•Internal Calls• Caller ID• CLIP (Calling Line Identification Presentation)• CLIR (Calling Line Identification Restriction)Note: To take full advantage of the supplementary phone services available though the WiMAX Modem's phone port, you may need to subscribe to the services from your VoIP service provider.11.2  Analog PhoneClick VOICE > Phone > Analog Phone to control which SIP accounts each phone uses.Figure 52   VOICE > Phone > Analog Phone
 Chapter 11 The Phone ScreensUser’s Guide 129The following table describes the labels in this screen.11.2.1  Advanced Analog Phone SetupClick the Show Advanced Setup button in VOICE > Phone > Analog Phone to edit advanced settings for the selected phone port.Figure 53   VOICE > Phone > Analog Phone > Show Advanced SetupTable 43   VOICE > Phone > Analog PhoneLABEL DESCRIPTIONPhone Port Settings Select the number of a phone port for the configuration in this screen.Outgoing Call UseSIP1 Select this if you want this phone port to use the SIP1 account when it makes calls. If you select both SIP accounts, the WiMAX Modem tries to use SIP2 first.SIP2 Select this if you want this phone port to use the SIP2 account when it makes calls. If you select both SIP accounts, the WiMAX Modem tries to use SIP2 first.Incoming Call apply toSIP1 Select this if you want to receive phone calls for the SIP1 account on this phone port. If you select more than one source for incoming calls, there is no way to distinguish between them when you receive phone calls.SIP2 Select this if you want to receive phone calls for the SIP2 account on this phone port. If you select more than one source for incoming calls, there is no way to distinguish between them when you receive phone calls.Show Advanced Setup Click this to edit the advanced settings for this phone port. The advanced settings appear.Apply Click to save your changes.Reset Click to restore your previously saved settings.
Chapter 11 The Phone ScreensUser’s Guide130The following table describes the labels in this screen.11.3  CommonClick VOICE > Phone > Common to activate and deactivate immediate dialing.Figure 54   VOICE > Phone > CommonTable 44   VOICE > Phone > Analog Phone > Show Advanced SetupLABEL DESCRIPTIONVoice Volume ControlSpeaking Volume Enter the loudness that the WiMAX Modem uses for speech that it sends to the peer device. -1 is the quietest, and 1 is the loudest.Listening Volume Enter the loudness that the WiMAX Modem uses for speech that it receives from the peer device. -1 is the quietest, and 1 is the loudest.Echo CancellationG.168 Active Select this if you want to eliminate the echo caused by the sound of your voice reverberating in the telephone receiver while you talk.Dialing Interval SelectDialing Interval Select Enter the number of seconds the WiMAX Modem should wait after you stop dialing numbers before it makes the phone call. The value depends on how quickly you dial phone numbers.If you select Active Immediate Dial in VOICE > Phone > Common, you can press the pound key (#) to tell the WiMAX Modem to make the phone call immediately, regardless of this setting.VAD Support Select this if the WiMAX Modem should stop transmitting when you are not speaking. This reduces the bandwidth the WiMAX Modem uses.Hide Advanced Setup Click this to not display these advanced settings in this screen.Apply Click to save your changes.Reset Click to restore your previously saved settings.
 Chapter 11 The Phone ScreensUser’s Guide 131The following table describes the labels in this screen.11.4  RegionClick VOICE > Phone > Region to maintain settings that often depend on the region of the world in which the WiMAX Modem is located.Figure 55   VOICE > Phone > RegionTable 45   VOICE > Phone > CommonLABEL DESCRIPTIONActive Immediate Dial Select this if you want to use the pound key (#) to tell the WiMAX Modem to make the phone call immediately, instead of waiting the number of seconds you selected in the Dialing Interval Select in VOICE > Phone > Analog Phone.If you select this, dial the phone number, and then press the pound key if you do not want to wait. The WiMAX Modem makes the call immediately. Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
Chapter 11 The Phone ScreensUser’s Guide132The following table describes the labels in this screen.11.5  Technical ReferenceThe following section contains additional technical information about the WiMAX Modem features described in this chapter.11.5.1  The Flash KeyFlashing means to press the hook for a short period of time (a few hundred milliseconds) before releasing it. On newer telephones, there should be a "flash" key (button) that generates the signal electronically. If the flash key is not available, you can tap (press and immediately release) the hook by hand to achieve the same effect. However, using the flash key is preferred since the timing is much more precise. The WiMAX Modem may interpret manual tapping as hanging up if the duration is too longYou can invoke all the supplementary services by using the flash key. Table 46   VOICE > Phone > RegionLABEL DESCRIPTIONRegion Settings Select the place in which the WiMAX Modem is located. Do not select Default.Call Service Mode Select the mode for supplementary phone services (call hold, call waiting, call transfer and three-way conference calls) that your VoIP service provider supports.•Europe Type - use supplementary phone services in European mode•USA Type - use supplementary phone services American modeYou might have to subscribe to these services to use them. Contact your VoIP service provider.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
 Chapter 11 The Phone ScreensUser’s Guide 13311.5.2  Europe Type Supplementary Phone ServicesThis section describes how to use supplementary phone services with the Europe Type Call Service Mode. Commands for supplementary services are listed in the table below.After pressing the flash key, if you do not issue the sub-command before the default sub-command timeout (2 seconds) expires or issue an invalid sub-command, the current operation will be aborted.European Call Hold allows you to put a call (A) on hold by pressing the flash key. If you have another call, press the flash key and then “2” to switch back and forth between caller A and B by putting either one on hold.Press the flash key and then “0” to disconnect the call presently on hold and keep the current call on line.Press the flash key and then “1” to disconnect the current call and resume the call on hold.If you hang up the phone but a caller is still on hold, there will be a remind ring.European Call Waiting allows you to place a call on hold while you answer another incoming call on the same telephone (directory) number. If there is a second call to a telephone number, you will hear a call waiting tone. Take one of the following actions.Table 47   European Type Flash Key CommandsCOMMAND SUB-COMMAND DESCRIPTIONFlash  Put a current call on hold to place a second call.Switch back to the call (if there is no second call).Flash 0 Drop the call presently on hold or reject an incoming call which is waiting for answer.Flash 1 Disconnect the current phone connection and answer the incoming call or resume with caller presently on hold.Flash 2 1. Switch back and forth between two calls.2. Put a current call on hold to answer an incoming call.3. Separate the current three-way conference call into two individual calls (one is on-line, the other is on hold).Flash 3 Create three-way conference connection.Flash  *98# Transfer the call to another phone.
Chapter 11 The Phone ScreensUser’s Guide134• Reject the second call.Press the flash key and then press “0”.• Disconnect the first call and answer the second call.Either press the flash key and press “1”, or just hang up the phone and then answer the phone after it rings.• Put the first call on hold and answer the second call.Press the flash key and then “2”.European Call Transfer allows you to transfer an incoming call (that you have answered) to another phone. To do so:1Press the flash key to put the caller on hold.2When you hear the dial tone, dial “*98#” followed by the number to which you want to transfer the call. to operate the Intercom.3After you hear the ring signal or the second party answers it, hang up the phone.European Three-Way Conference allows you to make three-way conference calls. To do so:1When you are on the phone talking to someone, place the flash key to put the caller on hold and get a dial tone. 2Dial a phone number directly to make another call.3When the second call is answered, press the flash key and press “3” to create a three-way conversation.4Hang up the phone to drop the connection.5If you want to separate the activated three-way conference into two individual connections (one is on-line, the other is on hold), press the flash key and press “2”.11.5.3  USA Type Supplementary ServicesThis section describes how to use supplementary phone services with the USA Type Call Service Mode. Commands for supplementary services are listed in the table below.
 Chapter 11 The Phone ScreensUser’s Guide 135After pressing the flash key, if you do not issue the sub-command before the default sub-command timeout (2 seconds) expires or issue an invalid sub-command, the current operation will be aborted.USA Call Hold allows you to put a call (A) on hold by pressing the flash key. If you have another call, press the flash key to switch back and forth between caller A and B by putting either one on hold.If you hang up the phone but a caller is still on hold, there will be a remind ring.USA Call Waiting allows you to place a call on hold while you answer another incoming call on the same telephone (directory) number. If there is a second call to your telephone number, you will hear a call waiting tone. Press the flash key to put the first call on hold and answer the second call.USA Call Transfer allows you to transfer an incoming call (that you have answered) to another phone. To do so:1Press the flash key to put the caller on hold.2When you hear the dial tone, dial “*98#” followed by the number to which you want to transfer the call. to operate the Intercom.3After you hear the ring signal or the second party answers it, hang up the phone.USA Three-Way Conference allows you to make three-way conference calls. To do so:1When you are making a call, press the flash key to put the call on hold and get a dial tone. 2Dial a phone number to make a second call. Table 48   USA Type Flash Key CommandsCOMMAND SUB-COMMAND DESCRIPTIONFlash  Put a current call on hold to place a second call. After the second call is successful, press the flash key again to have a three-way conference call.Put a current call on hold to answer an incoming call.Flash  *98# Transfer the call to another phone.
Chapter 11 The Phone ScreensUser’s Guide1363When the second call is answered, press the flash key to create a three-way conversation. 4If you want to separate the three-way conference into two individual calls (one call is online, the other is on hold), press the flash key. The first call is online and the second call is on hold. Pressing the flash key again will recreate the three-way conversation. The next time you press the flash key, the second call is online and the first call is on hold. 5Hang up the phone to drop the connection.
User’s Guide 137CHAPTER  12 The Phone Book Screens12.1  OverviewThe VOICE > Phone Book screens allow you to configure the WiMAX Modem’s phone book for making VoIP calls.12.1.1  What You Can Do in This Chapter•The Incoming Call Policy screen (Section 12.2 on page 138) lets you maintain rules for handling incoming calls. You can block, redirect, or accept them.•The Speed Dial screen (Section 12.3 on page 140) lets you add, edit, or remove speed-dial entries.12.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.Speed Dial and Peer-to-Peer CallingSpeed dial provides shortcuts for dialing frequently used (VoIP) phone numbers. It is also required if you want to make peer-to-peer calls. In peer-to-peer calls, you call another VoIP device directly without going through a SIP server. In the WiMAX Modem, you must set up a speed dial entry in the phone book in order to do this. Select Non-Proxy (Use IP or URL) in the Type column and enter the callee’s IP address or domain name. The WiMAX Modem sends SIP INVITE requests to the peer VoIP device when you use the speed dial entry.You do not need to configure a SIP account in order to make a peer-to-peer VoIP call.
Chapter 12 The Phone Book ScreensUser’s Guide13812.2  Incoming Call PolicyClick VOICE > Phone Book > Incoming Call Policy to maintain rules for handling incoming calls. You can block, redirect, or accept them.Figure 56   VOICE > Phone Book > Incoming Call PolicyThe following table describes the labels in this screen.  Table 49   VOICE > Phone Book > Incoming Call PolicyLABEL DESCRIPTIONTable Number Select the call-forwarding table you want to see in this screen. If you change this field, the screen automatically refreshes.Forward to Number SetupUnconditional Forward to NumberSelect this if you want the WiMAX Modem to forward all incoming calls to the specified phone number, regardless of other rules in the Forward to Number section. Specify the phone number in the field on the right.Busy Forward to Number Select this if you want the WiMAX Modem to forward incoming calls to the specified phone number if the phone port is busy. Specify the phone number in the field on the right. If you have call waiting, the incoming call is forwarded to the specified phone number if you reject or ignore the second incoming call.No Answer Forward to NumberSelect this if you want the WiMAX Modem to forward incoming calls to the specified phone number if the call is unanswered. (See No Answer Waiting Time.) Specify the phone number in the field on the right.No Answer Waiting Time This field is used by the No Answer Forward to Number feature and No Answer conditions below.Enter the number of seconds the WiMAX Modem should wait for you to answer an incoming call before it considers the call is unanswered.Advanced Setup
 Chapter 12 The Phone Book ScreensUser’s Guide 139Note: The WiMAX Modem checks the Advanced rules first before checking the Forward to Number rules. All rules are checked in order from top to bottom.# The number of the item in this list.Activate Select this to enable this rule. Clear this to disable this rule.Incoming Call Number Enter the phone number to which this rule applies.Forward to Number Enter the phone number to which you want to forward incoming calls from the Incoming Call Number. You may leave this field blank, depending on the Condition.Condition Select the situations in which you want to forward incoming calls from the Incoming Call Number, or select an alternative action.•Unconditional - The WiMAX Modem immediately forwards any calls from the Incoming Call Number to the Forward to Number.•Busy - The WiMAX Modem forwards any calls from the Incoming Call Number to the Forward to Number when your SIP account already has a call connected.•No Answer - The WiMAX Modem forwards any calls from the Incoming Call Number to the Forward to Number when the call is unanswered. (See No Answer Waiting Time.)•Block - The WiMAX Modem rejects calls from the Incoming Call Number.•Accept - The WiMAX Modem allows calls from the Incoming Call Number. You might create a rule with this condition if you do not want incoming calls from someone to be forwarded by rules in the Forward to Number section.Apply Click to save your changes.Reset Click to restore your previously saved settings.Table 49   VOICE > Phone Book > Incoming Call PolicyLABEL DESCRIPTION
Chapter 12 The Phone Book ScreensUser’s Guide14012.3  Speed DialClick VOICE > Phone Book > Speed Dial to add, edit, or remove speed-dial entries.You must create speed-dial entries if you want to make peer-to-peer calls or call SIP numbers that use letters. You can also create speed-dial entries for frequently-used SIP phone numbers.Figure 57   VOICE > Phone Book > Speed DialThe following table describes the icons in this screen.The following table describes the labels in this screen.  Table 50   VOICE > Phone Book > Speed DialICON DESCRIPTIONEditClick to edit this item.DeleteClick to delete this item.Table 51   VOICE > Phone Book > Speed DialLABEL DESCRIPTION# This is a list of speed dial numbers.Number This is the SIP number the WiMAX Modem calls when you use this speed dial number.Name This is the name of the party associated with this speed-dial number.Destination This indicates if the speed-dial entry uses one of your SIP accounts or uses the IP address or domain name of the SIP server.Action Click the Delete icon to erase this speed-dial entry.
 Chapter 12 The Phone Book ScreensUser’s Guide 14112.3.1  Speed Dial SetupClick the Edit icon of an entry in the VOICE > Phone Book > Speed Dial screen to open the following screen. Use this screen to configure a speed dial entry.Figure 58   VOICE > Phone Book > Speed Dial > EditThe following table describes the labels in this screen.Clear ( 清除 )Click to clear all fields on the screen and begin anew.Reset ( 重設 )Click to restore your previously saved settings.Table 51   VOICE > Phone Book > Speed DialLABEL DESCRIPTIONTable 52   VOICE > Phone Book > Speed Dial > EditLABEL DESCRIPTIONSpeed Dial Select the speed-dial number you want to use for this phone number.Number Enter the SIP number you want the WiMAX Modem to call when you dial the speed-dial number.Name Enter a name to identify the party you call when you dial the speed-dial number. You can use up to 127 printable ASCII characters.Type Select Use Proxy if you want to use one of your SIP accounts to call this phone number.Select Non-Proxy (Use IP or URL) if you want to use a different SIP server or if you want to make a peer-to-peer call. In this case, enter the IP address or domain name of the SIP server or the other party in the field below.Apply  ( 套用 )Click to save your changes.Cancel ( 取消 )Click to return to the previous screen without saving your changes.
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143PART VTools & Status ScreensThe Certificates Screens  (145)The Remote Management Screens  (149)The Password Setup Screen  (161)The Status Screen  (163)
144
User’s Guide 145CHAPTER  13 The Certificates Screens13.1  OverviewUse the TOOLS ( 工具 ) > Certificates ( 憑證 ) screens to import public key certificates on the WiMAX Modem.The WiMAX Modem can use public key certificates (also sometimes called “digital IDs”) to authenticate users. Certificates are based on public-private key pairs. A certificate contains the certificate owner’s identity and public key. Certificates provide a way to exchange public keys for use in authentication.Public key certificates are used by web browsers to ensure that a secure web site is legitimate. When a certificate authority such as VeriSign, Comodo, or Network Solutions (to name a few) receives a certificate request from a website operator, they confirm that the web domain and contact information in the request match those on public record with a domain name registrar. If they match, then the certificate is issued to the website operator, who then places it on his site to be issued to all visiting web browsers to let them know that the site is legitimate.13.1.1  What You Can Do in This Chapter•The My Certificates screen (Section 13.2 on page 146) lets you import the WiMAX Modem’s CA-signed certificates.•The Trusted CAs screen (Section 13.3 on page 146) lets you import trusted CA-signed certificates.13.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.Certificate AuthoritiesA Certification Authority (CA) issues certificates and guarantees the identity of each certificate owner. There are commercial certification authorities like CyberTrust or VeriSign and government certification authorities.
Chapter 13 The Certificates ScreensUser’s Guide14613.2  My CertificatesClick TOOLS ( 工具 ) > Certificates ( 憑證 ) > My Certificates  to import a certificate that matches a corresponding certification request that was generated by the WiMAX Modem. You must remove any spaces from the certificate’s filename before you can import it.Figure 59   TOOLS ( 工具 ) > Certificates ( 憑證 ) > My CertificatesThe following table describes the labels in this screen.  13.3  Trusted CAsClick TOOLS ( 工具 ) > Certificates ( 憑證 ) > Trusted CAs to open the following screen. Follow the instructions in this screen to save a trusted certification authority’s certificate from a computer to the WiMAX Modem. The WiMAX Modem trusts any valid certificate signed by any of the imported trusted CA certificates.Table 53   TOOLS ( 工具 ) > Certificates ( 憑證 ) > My CertificatesLABEL DESCRIPTIONFile Path ( 檔案路徑 )Type in the location of the file you want to upload in this field or click Browse to find it.You cannot import a certificate with the same name as a certificate that is already in the WiMAX Modem.Browse  Click to find the certificate file you want to upload. Apply ( 套用 )Click to save your changes.Cancel (取消)Click to return to the previous screen without saving your changes.
 Chapter 13 The Certificates ScreensUser’s Guide 147Note: You must remove any spaces from the certificate’s filename before you can import the certificate.Figure 60   TOOLS ( 工具 ) > Certificates ( 憑證 ) > Trusted CAsThe following table describes the labels in this screen.Table 54   TOOLS ( 工具 ) > Certificates ( 憑證 ) > Trusted CAs ImportLABEL DESCRIPTIONFile Path ( 檔案路徑 )Type in the location of the file you want to upload in this field or click Browse to find it.Browse...  Click to find the certificate file you want to upload. Apply ( 套用 )Click to save your changes.Cancel ( 重設 )Click to return to the previous screen without saving your changes.
Chapter 13 The Certificates ScreensUser’s Guide148
User’s Guide 149CHAPTER  14 The Remote ManagementScreens14.1  OverviewUse the TOOLS (工具) > Remote MGMT screens to control which computers can use which services to access the WiMAX Modem on each interface.Remote management allows you to determine which services/protocols can access which WiMAX Modem interface (if any) from which computers.You may manage your WiMAX Modem from a remote location via:To disable remote management of a service, select Disable in the corresponding Server Access field.You may only have one remote management session running at a time. The WiMAX Modem automatically disconnects a remote management session of lower priority when another remote management session of higher priority starts. The priorities for the different types of remote management sessions are as follows.1Telnet2HTTP14.1.1  What You Can Do in This Chapter•The WWW screen (Section 14.2 on page 151) lets you control HTTP access to your WiMAX Modem.•The Telnet screen (Section 14.3 on page 152) lets you control Telnet access to your WiMAX Modem.•The FTP screen (Section 14.4 on page 153) lets you control FTP access to your WiMAX Modem.Table 55   Remote Management• Internet (WAN only) • ALL (LAN and WAN)• LAN only • Neither (Disable).
Chapter 14 The Remote Management ScreensUser’s Guide150•The SNMP screen (Section 14.5 on page 154) lets you control SNMP access to your WiMAX Modem.•The DNS screen (Section 14.6 on page 157) lets you control DNS access to your WiMAX Modem.•The Security screen (Section 14.7 on page 158) lets you control how your WiMAX Modem responds to other types of requests.14.1.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.Remote Management LimitationsRemote management over LAN or WAN will not work when:1A filter in SMT menu 3.1 (LAN) or in menu 11.5 (WAN) is applied to block a Telnet, FTP or Web service. 2You have disabled that service in one of the remote management screens.3The IP address in the Secured Client IP field does not match the client IP address. If it does not match, the WiMAX Modem will disconnect the session immediately.4There is already another remote management session with an equal or higher priority running. You may only have one remote management session running at one time.Remote Management and NATWhen NAT is enabled:• Use the WiMAX Modem’s WAN IP address when configuring from the WAN. • Use the WiMAX Modem’s LAN IP address when configuring from the LAN.System TimeoutThere is a default system management idle timeout of five minutes (three hundred seconds). The WiMAX Modem automatically logs you out if the management session remains idle for longer than this timeout period. The management session does not time out when a statistics screen is polling.SNMPSimple Network Management Protocol (SNMP) is a protocol used for exchanging management information between network devices. SNMP is a member of the
 Chapter 14 The Remote Management ScreensUser’s Guide 151TCP/IP protocol suite. Your WiMAX Modem supports SNMP agent functionality, which allows a manager station to manage and monitor the WiMAX Modem through the network. The WiMAX Modem supports SNMP version one (SNMPv1) and version two (SNMPv2). The next figure illustrates an SNMP management operation.Note: SNMP is only available if TCP/IP is configured.14.2  WWWClick TOOLS ( 工具 ) > Remote MGMT > WWW to control HTTP access to your WiMAX Modem.Figure 61   TOOLS ( 工具 ) > Remote MGMT > WWWThe following table describes the labels in this screen.       Table 56   TOOLS ( 工具 )  > Remote MGMT > WWWLABEL DESCRIPTIONServer Port Enter the port number this service can use to access the WiMAX Modem. The computer must use the same port number.Server Access Select the interface(s) through which a computer may access the WiMAX Modem using this service.Secured Client IP Address Select All to allow any computer to access the WiMAX Modem using this service.Select Selected to only allow the computer with the IP address that you specify to access the WiMAX Modem using this service.
Chapter 14 The Remote Management ScreensUser’s Guide15214.3  TelnetClick TOOLS ( 工具 ) > Remote MGMT > Telnet to control Telnet access to your WiMAX Modem.Figure 62   TOOLS ( 工具 )  > Remote MGMT > TelnetThe following table describes the labels in this screen.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 56   TOOLS ( 工具 )  > Remote MGMT > WWW (continued)LABEL DESCRIPTIONTable 57   TOOLS ( 工具 )  > Remote MGMT > TelnetLABEL DESCRIPTIONServer Port Enter the port number this service can use to access the WiMAX Modem. The computer must use the same port number.Server Access Select the interface(s) through which a computer may access the WiMAX Modem using this service.Secured Client IP Address Select All to allow any computer to access the WiMAX Modem using this service.Select Selected to only allow the computer with the IP address that you specify to access the WiMAX Modem using this service.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
 Chapter 14 The Remote Management ScreensUser’s Guide 15314.4  FTPClick TOOLS (工具) > Remote MGMT > FTP to control FTP access to your WiMAX Modem.Figure 63   TOOLS ( 工具 ) > Remote MGMT > FTPThe following table describes the labels in this screen.Table 58   TOOLS ( 工具 ) > Remote MGMT > FTPLABEL DESCRIPTIONServer Port Enter the port number this service can use to access the WiMAX Modem. The computer must use the same port number.Server Access Select the interface(s) through which a computer may access the WiMAX Modem using this service.Secured Client IP Address Select All to allow any computer to access the WiMAX Modem using this service.Select Selected to only allow the computer with the IP address that you specify to access the WiMAX Modem using this service.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
Chapter 14 The Remote Management ScreensUser’s Guide15414.5  SNMPAn SNMP managed network consists of two main types of component: agents and a manager.Figure 64   SNMP Management ModelAn agent is a management software module that resides in a managed device (the WiMAX Modem). An agent translates the local management information from the managed device into a form compatible with SNMP. The manager is the console through which network administrators perform network management functions. It executes applications that control and monitor managed devices. The managed devices contain object variables/managed objects that define each piece of information to be collected about a device. Examples of variables include such as number of packets received, node port status etc. A Management Information Base (MIB) is a collection of managed objects. SNMP allows a manager and agents to communicate for the purpose of accessing these objects. The WiMAX Modem supports MIB II that is defined in RFC-1213 and RFC-1215. The focus of the MIBs is to let administrators collect statistical data and monitor status and performance.SNMP itself is a simple request/response protocol based on the manager/agent model. The manager issues a request and the agent returns responses using the following protocol operations: • Get - Allows the manager to retrieve an object variable from the agent.
 Chapter 14 The Remote Management ScreensUser’s Guide 155• GetNext - Allows the manager to retrieve the next object variable from a table or list within an agent. In SNMPv1, when a manager wants to retrieve all elements of a table from an agent, it initiates a Get operation, followed by a series of GetNext operations. • Set - Allows the manager to set values for object variables within an agent. • Trap - Used by the agent to inform the manager of some events.14.5.1  SNMP TrapsThe WiMAX Modem sends traps to the SNMP manager when any of the following events occurs:          Table 59   SNMP TrapsTRAP # TRAP NAME DESCRIPTION0coldStart (defined in RFC-1215)A trap is sent after booting (power on).1warmStart (defined in RFC-1215)A trap is sent after booting (software reboot).4authenticationFailure (defined in RFC-1215)A trap is sent to the manager when receiving any SNMP get or set requirements with the wrong community (password).6whyReboot (defined in ZYXEL-MIB) A trap is sent with the reason of restart before rebooting when the system is going to restart (warm start).6a For intentional reboot: A trap is sent with the message "System reboot by user!" if reboot is done intentionally, (for example, download new files, CI command "sys reboot", etc.).6b For fatal error:  A trap is sent with the message of the fatal code if the system reboots because of fatal errors.
Chapter 14 The Remote Management ScreensUser’s Guide15614.5.2  SNMP OptionsClick TOOLS ( 工具 ) > Remote MGMT > SNMP to control SNMP access to your WiMAX Modem.Figure 65   TOOLS ( 工具 ) > Remote MGMT > SNMPThe following table describes the labels in this screen.Table 60   TOOLS ( 工具 ) > Remote MGMT > SNMPLABEL DESCRIPTIONSNMP ConfigurationGet Community Enter the Get Community, which is the password for the incoming Get and GetNext requests from the management station. The default is public and allows all requests.Set Community Enter the Set community, which is the password for incoming Set requests from the management station. The default is public and allows all requests.Trap Community Enter the trap community, which is the password sent with each trap to the SNMP manager. The default is public and allows all requests.Trap Destination Enter the IP address of the station to send your SNMP traps to.SNMPPort You may change the server port number for a service if needed, however you must use the same port number in order to use that service for remote management.Access Status Select the interface(s) through which a computer may access the WiMAX Modem using this service.
 Chapter 14 The Remote Management ScreensUser’s Guide 15714.6  DNSClick TOOLS ( 工具 ) > Remote MGMT > DNS to control DNS access to your WiMAX Modem.Figure 66   TOOLS ( 工具 ) > Remote MGMT > DNSThe following table describes the labels in this screen.Secured Client IP A secured client is a “trusted” computer that is allowed to communicate with the WiMAX Modem using this service. Select All to allow any computer to access the WiMAX Modem using this service.Choose Selected to just allow the computer with the IP address that you specify to access the WiMAX Modem using this service.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 60   TOOLS ( 工具 ) > Remote MGMT > SNMP (continued)LABEL DESCRIPTIONTable 61   TOOLS ( 工具 ) > Remote MGMT > DNSLABEL DESCRIPTIONServer Port This field is read-only. This field displays the port number this service uses to access the WiMAX Modem. The computer must use the same port number.Server Access Select the interface(s) through which a computer may access the WiMAX Modem using this service.
Chapter 14 The Remote Management ScreensUser’s Guide15814.7  SecurityClick TOOLS ( 工具 ) > Remote MGMT > Security to control how your WiMAX Modem responds to other types of requests.Figure 67   TOOLS ( 工具 ) > Remote MGMT > SecuritySecured Client IP Address Select All to allow any computer to access the WiMAX Modem using this service.Select Selected to only allow the computer with the IP address that you specify to access the WiMAX Modem using this service.Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.Table 61   TOOLS ( 工具 ) > Remote MGMT > DNS (continued)LABEL DESCRIPTION
 Chapter 14 The Remote Management ScreensUser’s Guide 159The following table describes the labels in this screen.Table 62   TOOLS ( 工具 ) > Remote MGMT > SecurityLABEL DESCRIPTIONRespond to Ping on Select the interface(s) on which the WiMAX Modem should respond to incoming ping requests.•Disable - the WiMAX Modem does not respond to any ping requests.•LAN - the WiMAX Modem only responds to ping requests received from the LAN.•WAN - the WiMAX Modem only responds to ping requests received from the WAN.•LAN & WAN - the WiMAX Modem responds to ping requests received from the LAN or the WAN.Do not respond to requests for unauthorized servicesSelect this to prevent outsiders from discovering your WiMAX Modem by sending requests to unsupported port numbers. If an outside user attempts to probe an unsupported port on your WiMAX Modem, an ICMP response packet is automatically returned. This allows the outside user to know the WiMAX Modem exists. Your WiMAX Modem supports anti-probing, which prevents the ICMP response packet from being sent. This keeps outsiders from discovering your WiMAX Modem when unsupported ports are probed.If you clear this, your WiMAX Modem replies with an ICMP Port Unreachable packet for a port probe on unused UDP ports and with a TCP Reset packet for a port probe on unused TCP ports. Apply ( 套用 )Click to save your changes.Reset ( 重設 )Click to restore your previously saved settings.
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User’s Guide 161CHAPTER  15 The Password Setup Screen15.1  OverviewThe default administrator password is 284wj/6. Use this screen to change it.15.2  Password SetupClick TOOLS ( 工具 ) > Password Setup to change the administrator password.Figure 68   TOOLS ( 工具 ) > Password Setup
Chapter 15 The Password Setup ScreenUser’s Guide162The following table describes the labels in this screen.Table 63   TOOLS ( 工具 ) > Password SetupLABEL DESCRIPTIONOld Password (舊密碼 )Enter the current password you use to access the WiMAX Modem.New Password (新密碼 )Enter the new password for the WiMAX Modem. You can use up to 30 characters. As you type the password, the screen displays an asterisk (*) for each character you type.Retype to Confirm ( 請重新輸入一次新密碼以確認無誤 )Enter the new password again.Apply ( 套用 ) Click to save your changes.Reset ( 重設 ) Click to restore your previously saved settings.
User’s Guide 163CHAPTER  16 The Status Screen16.1  OverviewUse this screen to view a complete summary of your WiMAX Modem connection status.16.2  Status ScreenClick the STATUS (狀態) icon in the navigation bar to go to this screen, where you can view the current status of the device, system resources, and interfaces (LAN and WAN). Figure 69   Status ( 狀態 )
Chapter 16 The Status ScreenUser’s Guide164The following tables describe the labels in this screen.Table 64   Status ( 狀態 )LABEL DESCRIPTIONDevice Information ()System Name () This field displays the WiMAX Modem system name. It is used for identification. You can change this in the ADVANCED ( 進階 ) > System Configuration (系統組態) > General screen’s System Name (系統名稱) field.Firmware Version () This field displays the current version of the firmware inside the device. It also shows the date the firmware version was created. You can change the firmware version by uploading new firmware in ADVANCED (進階) > System Configuration (系統組態) > Firmware.Hardware Version ( 硬體版本)This field displays the version of the physical device hardware.System Uptime(系統開機時間 )This field displays how long the WiMAX Modem has been running since it last started up. The WiMAX Modem starts up when you plug it in, when you restart it (ADVANCED ( 進階 ) > System Configuration ( 系統組態 ) > Restart), or when you reset it.Memory Usage(記憶體使用 )This field displays what percentage of the WiMAX Modem’s memory is currently used. The higher the memory usage, the more likely the WiMAX Modem is to slow down. Some memory is required just to start the WiMAX Modem and to run the web configurator. You can reduce the memory usage by disabling some services (see CPU Usage); by reducing the amount of memory allocated to NAT and firewall rules (you may have to reduce the number of NAT rules or firewall rules to do so); or by deleting rules in functions such as incoming call policies, speed dial entries, and static routes.Interface Information ( 介面狀態 )LAN Information (LAN 資訊 )Status (狀態) This field indicates whether or not the WiMAX Modem is using the LAN interface.This field displays Connected when the WiMAX Modem is using the LAN interface. Otherwise, it displays DISCONNECTED.Speed (速率) This field displays the LAN connection speed (in Mbps).IP Address (IP 位址 )This field displays the current IP address of the WiMAX Modem in the LAN.IP Subnet Mask (IP子網路遮罩 )This field displays the current subnet mask on the LAN.WAN Information (WAN )Status (狀態) This field indicates whether or not the WiMAX Modem is using the WAN interface.This field displays OPERATIONAL when the WiMAX Modem is using the WAN interface. Otherwise, it displays DISCONNECTED.
 Chapter 16 The Status ScreenUser’s Guide 165IP Address (IP 位址 )This field displays the current IP address of the WiMAX Modem in the LAN.IP Subnet Mask (IP子網路遮罩 )This field displays the current subnet mask in the LAN.BSID This field displays the identification number of the wireless base station to which the WiMAX Modem is connected. Every base station transmits a unique BSID, which identifies it across the network.Preamble Index The Preamble Index is the number of bytes used for initial synchorinzation at the biginning of a downlink frame. See the IEEE 802.16e standard for more information.Frequency (頻率 )This field displays the radio frequency of the WiMAX Modem’s wireless connection to a base station.UL Data Amount (UL傳輸量 )This field shows the number of data packets uploaded from the WiMAX Modem to the base station each second.DL Data Amount (DL 傳輸量 )This field shows the number of data packets downloaded to the WiMAX Modem from the base station each second.RSSI This field shows the Received Signal Strength Indication. This value is a measurement of overall radio signal strength. A higher RSSI level indicates a stronger signal, and a lower RSSI level indicates a weaker signal.A strong signal does not necessarily indicate a good signal: a strong signal may have a low signal-to-noise ratio (SNR).Tx Power (發射功率 )This field shows the output transmission (Tx) level of the WiMAX Modem.CINR This field shows the average Carrier to Interference plus Noise Ratio of the current connection. This value is an indication of overall radio signal quality. A higher value indicates a higher signal quality, and a lower value indicates a lower signal quality.MAC address (MAC 位址 )This field displays the Media Access Control address of the WiMAX Modem. Every network device has a unique MAC address which identifies it across the network.Table 64   Status ( 狀態 ) (continued)LABEL DESCRIPTION
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167PART VITroubleshooting and SpecificationsTroubleshooting  (169)Product Specifications  (177)
168
User’s Guide 169CHAPTER  17 TroubleshootingThis chapter offers some suggestions to solve problems you might encounter. The potential problems are divided into the following categories:•Power, Hardware Connections, and LEDs•WiMAX Modem Access and Login•Internet Access•Phone Calls and VoIP•Reset the WiMAX Modem to Its Factory Defaults17.1  Power, Hardware Connections, and LEDsThe WiMAX Modem does not turn on. None of the LEDs turn on.1Make sure you are using the power adapter or cord included with the WiMAX Modem.2Make sure the power adapter or cord is connected to the WiMAX Modem and plugged in to an appropriate power source. Make sure the power source is turned on.3Disconnect and re-connect the power adapter or cord to the WiMAX Modem.4If the problem continues, contact the vendor.One of the LEDs does not behave as expected.1Make sure you understand the normal behavior of the LED. See Section 1.2.1 on page 21 for more information.
Chapter 17 TroubleshootingUser’s Guide1702Check the hardware connections. See the Quick Start Guide.3Inspect your cables for damage. Contact the vendor to replace any damaged cables.4Disconnect and re-connect the power adapter to the WiMAX Modem.5If the problem continues, contact the vendor.17.2  WiMAX Modem Access and LoginI forgot the IP address for the WiMAX Modem.1The default IP address is http://192.168.1.1.2If you changed the IP address and have forgotten it, you might get the IP address of the WiMAX Modem by looking up the IP address of the default gateway for your computer. To do this in most Windows computers, click Start > Run, enter cmd, and then enter ipconfig. The IP address of the Default Gateway might be the IP address of the WiMAX Modem (it depends on the network), so enter this IP address in your Internet browser.3If this does not work, you have to reset the WiMAX Modem to its factory defaults. See Section 17.1 on page 169.I forgot the password.1The default password is 284wj/6.2If this does not work, you have to reset the WiMAX Modem to its factory defaults. See Section 9.4 on page 104.I cannot see or access the Login screen in the web configurator.1Make sure you are using the correct IP address.• The default IP address is http://192.168.1.1.
 Chapter 17 TroubleshootingUser’s Guide 171• If you changed the IP address (Section 3.2 on page 32), use the new IP address.• If you changed the IP address and have forgotten it, see the troubleshooting suggestions for I forgot the IP address for the WiMAX Modem.2Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.2.1 on page 21.3Make sure your Internet browser does not block pop-up windows and has JavaScript and Java enabled. See Appendix C on page 219.4If there is a DHCP server on your network, make sure your computer is using a dynamic IP address. Your WiMAX Modem is a DHCP server by default.If there is no DHCP server on your network, make sure your computer’s IP address is in the same subnet as the WiMAX Modem. See Appendix D on page 229.5Reset the WiMAX Modem to its factory defaults, and try to access the WiMAX Modem with the default IP address. See Section 9.5 on page 105.6If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions.Advanced Suggestions• Try to access the WiMAX Modem using another service, such as Telnet. If you can access the WiMAX Modem, check the remote management settings and firewall rules to find out why the WiMAX Modem does not respond to HTTP.• If your computer is connected wirelessly, use a computer that is connected to a LAN/ETHERNET port.I can see the Login screen, but I cannot log in to the WiMAX Modem.1Make sure you have entered the user name and password correctly. The default user name is @dmin, and the default password is 284wj/6. These fields are case-sensitive, so make sure [Caps Lock] is not on.2You cannot log in to the web configurator while someone is using Telnet to access the WiMAX Modem. Log out of the WiMAX Modem in the other session, or ask the person who is logged in to log out.3Disconnect and re-connect the power adapter or cord to the WiMAX Modem.4If this does not work, you have to reset the WiMAX Modem to its factory defaults. See Section 9.4 on page 104.
Chapter 17 TroubleshootingUser’s Guide172I cannot Telnet to the WiMAX Modem.See the troubleshooting suggestions for I cannot see or access the Login screen in the web configurator. Ignore the suggestions about your browser.17.3  Internet AccessI cannot access the Internet.1Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.2.1 on page 21.2Make sure you entered your ISP account information correctly in the wizard. These fields are case-sensitive, so make sure [Caps Lock] is not on.3Check your security settings. In the web configurator, go to the Status screen. Click the WiMAX Profile link in the Summary box and make sure that you are using the correct security settings for your Internet account.4Check your WiMAX settings. The WiMAX Modem may have been set to search the wrong frequencies for a wireless connection. In the web configurator, go to the Status screen. Click the WiMAX Site Information link in the Summary box and ensure that the values are correct. If the values are incorrect, enter the correct frequency settings in the ADVANCED (進階) > WAN Configuration (WAN設定) > WiMAX Configuration screen. If you are unsure of the correct values, contact your service provider.5If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless client are the same as the settings in the AP.6Disconnect all the cables from your WiMAX Modem, and follow the directions in the Quick Start Guide again.7If the problem continues, contact your ISP.I cannot access the Internet any more. I had access to the Internet (with the WiMAX Modem), but my Internet connection is not available any more.
 Chapter 17 TroubleshootingUser’s Guide 1731Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.2.1 on page 21.2Disconnect and re-connect the power adapter to the WiMAX Modem. 3If the problem continues, contact your ISP.The Internet connection is slow or intermittent.1The quality of the WiMAX Modem’s wireless connection to the base station may be poor. Poor signal reception may be improved by moving the WiMAX Modem away from thick walls and other obstructions, or to a higher floor in your building. 2There may be radio interference caused by nearby electrical devices such as microwave ovens and radio transmitters. Move the WiMAX Modem away or switch the other devices off. Weather conditions may also affect signal quality.3As well as having an external antenna connector, the MAX-210HW2 is equipped with an internal directional antenna. If you know the location of the base station, orient the front of the WiMAX Modem (the side with the LEDs) towards the base station. If you do not know the location of the base station, experiment by moving the WiMAX Modem while observing the Strength Indicator LEDs for an increase in received signal strength. The MAX-200HW2 and MAX-230HW2 do not have internal antennas.4There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.2.1 on page 21. If the WiMAX Modem is sending or receiving a lot of information, try closing some programs that use the Internet, especially peer-to-peer applications.5Disconnect and re-connect the power adapter to the WiMAX Modem.6If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions.The Internet connection disconnects.1Check your WiMAX link and signal strength using the WiMAX Link and Strength Indicator LEDs on the device.2Contact your ISP if the problem persists.
Chapter 17 TroubleshootingUser’s Guide17417.4  Phone Calls and VoIPThe telephone port won’t work or the telephone lacks a dial tone.1Check the telephone connections and telephone wire.2Make sure you have the VOICE > Service Configuration > SIP Settings screen properly configured (Chapter 10 on page 109).I can access the Internet, but cannot make VoIP calls.1Make sure you have the VOICE > Service Configuration > SIP Settings screen properly configured (Chapter 10 on page 109).2The VoIP LED should come on. Make sure that your telephone is connected to the VoIP port (see the Quick Start Guide for information on connecting telephone cables to the these ports).3You can also check the VoIP status in the Status ( 狀態 ) screen. 4If the VoIP settings are correct, use speed dial to make peer-to-peer calls. If you cannot make a call using speed dial, there may be something wrong with the SIP server. Contact your VoIP service provider.Problems With Multiple SIP AccountsYou can set up two SIP accounts on your WiMAX Modem. By default your WiMAX Modem uses SIP account 1 for outgoing calls, and it uses SIP accounts 1 and 2 for incoming calls. With this setting, you always use SIP account 1 for your outgoing calls and you cannot distinguish which SIP account the calls are coming in through. If you want to control the use of different dialing plans for accounting purposes or other reasons, you need to configure your phone port in order to control which SIP account you are using when placing or receiving calls.
 Chapter 17 TroubleshootingUser’s Guide 17517.5  Reset the WiMAX Modem to Its Factory DefaultsIf you reset the WiMAX Modem, you lose all of the changes you have made. The WiMAX Modem re-loads its default settings, and the password resets to 1234. You have to make all of your changes again.You will lose all of your changes when you push the Reset button.To reset the WiMAX Modem,1Make sure the Power LED is on and not blinking.2Press and hold the Reset button for five to ten seconds. Release the Reset button when the Power LED begins to blink. The default settings have been restored.If the WiMAX Modem restarts automatically, wait for the WiMAX Modem to finish restarting, and log in to the web configurator. The password is “284wj/6”.If the WiMAX Modem does not restart automatically, disconnect and reconnect the WiMAX Modem’s power. Then, follow the directions above again.17.5.1  Pop-up Windows, JavaScripts and Java PermissionsPlease see Appendix C on page 219.
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User’s Guide 177CHAPTER18Product SpecificationsThis chapter gives details about your WiMAX Modem’s hardware and firmware features.                     Table 65   Environmental and Hardware SpecificationsFEATURE DESCRIPTIONOperating Temperature 0°C to 45°CStorage Temperature -25°C to 55°COperating Humidity10% ~ 90% (non-condensing)Storage Humidity 10% to 95% (non-condensing)Power Supply 12V DC, 2APower consumption 18WEthernet Interface Four auto-negotiating, auto-MDI/MDI-X NWay 10/100 Mbps RJ-45 Ethernet portsTelephony Interface Two analog ATA interfaces for standard telephones through RJ-11 FXS (Foreign Exchange Subscriber) analog connectorAntennas Two internal omnidirectional 5dBi WiMAX antennasg 004thgieWDimensions165 mm (W) x 25 mm (D) x 260 mm (H)CertificationEMI and EMS: USA-FCC Part 15B/ FCC Part 27M/ FCC MPETaiwan-NCC PLMN09/ NCC MPE/ BSMI CNS13438/             BSMI CNS14336  Table 66   Radio SpecificationsFEATURE DESCRIPTIONMedia Access ProtocolIEEE 802.16eWiMAX Bandwidth 2.5 GHz
Chapter 18 Product SpecificationsUser’s Guide178Data Rate Download:Maximum 20 MbpsAverage 6 MbpsUpload:Maximum 4 MbpsAverage 3 MbpsModulation QPSK (uplink and downlink)16-QAM (uplink and downlink)64-QAM (downlink only)Output Power Typically 26 dBm with internal antennasDuplex mode Time Division Duplex (TDD)Security PKMv2EAPCCMP, 128-bit AESTable 67   Firmware SpecificationsFEATURE DESCRIPTIONWeb-based Configuration and Management Tool Also known as “the web configurator”, this is a firmware-based management solution for the WiMAX Modem. You must connect using a compatible web browser in order to use it.High Speed Wireless Internet Access The WiMAX Modem is ideal for high-speed wireless Internet browsing. WiMAX (Worldwide Interoperability for Microwave Access) is a wireless networking standard providing high-bandwidth, wide-range secured wireless service. The WiMAX Modem is a WiMAX mobile station (MS) compatible with the IEEE 802.16e standard. Firewall The WiMAX Modem is a stateful inspection firewall with DoS (Denial of Service) protection. By default, when the firewall is activated, all incoming traffic from the WAN to the LAN is blocked unless it is initiated from the LAN. The WiMAX Modem’s firewall supports TCP/UDP inspection, DoS detection and prevention, real time alerts, reports and logs.Content Filtering The WiMAX Modem can block access to web sites containing specified keywords. You can define time periods and days during which content filtering is enabled and include or exclude a range of users on the LAN from content filtering.Network Address Translation (NAT) Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network (for example a private IP address used in a local network) to a different IP address known within another network (for example a public IP address used on the Internet).Universal Plug and Play (UPnP) Your device and other UPnP enabled devices can use the standard TCP/IP protocol to dynamically join a network, obtain an IP address and convey their capabilities to each other.Table 66   Radio Specifications (continued)
 Chapter 18 Product SpecificationsUser’s Guide 179Dynamic DNS Support With Dynamic DNS support, you can have a static hostname alias for a dynamic IP address, allowing the host to be more easily accessible from various locations on the Internet. You must register for this service with a Dynamic DNS service provider.DHCP DHCP (Dynamic Host Configuration Protocol) allows the individual clients (computers) to obtain the TCP/IP configuration at start-up from a centralized DHCP server. Your device has built-in DHCP server capability enabled by default. It can assign IP addresses, an IP default gateway and DNS servers to DHCP clients. Your device can also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the actual real DHCP server to the clients.IP Alias IP alias allows you to partition a physical network into logical networks over the same Ethernet interface. Your device supports three logical LAN interfaces via its single physical Ethernet interface with the your device itself as the gateway for each LAN network.Multiple SIP Accounts You can configure multiple voice (SIP) accounts.SIP ALG Your device is a SIP Application Layer Gateway (ALG). It allows VoIP calls to pass through NAT for devices behind it (such as a SIP-based VoIP software application on a computer). Dynamic Jitter Buffer The built-in adaptive buffer helps to smooth out the variations in delay (jitter) for voice traffic (up to 60 ms). This helps ensure good voice quality for your conversations.Voice Activity Detection/Silence Suppression Voice Activity Detection (VAD) reduces the bandwidth that a call uses by not transmitting when you are not speaking. Comfort Noise Generation Your device generates background noise to fill moments of silence when the other device in a call stops transmitting because the other party is not speaking (as total silence could easily be mistaken for a lost connection). Echo Cancellation  You device supports G.168 of at least 24 ms.This an ITU-T standard for eliminating the echo caused by the sound of your voice reverberating in the telephone receiver while you talk.Time and Date Get the current time and date from an external server when you turn on your WiMAX Modem. You can also set the time manually.Logging Use the WiMAX Modem’s logging feature to view connection history, surveillance logs, and error messages.Codecs Enhanced Variable Rate Codec (EVRC), G.711 (PCM µ-law and a-law), G.729a, and G.723.1 Fax Support T.38 FAX relay (FAX over UDP). G.711 fax relay for fax calls and be able to renegotiate codec to G.711 if a fax call is detected.Table 67   Firmware Specifications (continued)FEATURE DESCRIPTION
Chapter 18 Product SpecificationsUser’s Guide180Ring Tones Supports different distinctive ring tones on each line. Call Prioritization Prioritize VoIP traffic originating from the RJ-11 ports over any other traffic.Table 68   Standards Supported STANDARD DESCRIPTIONRFC 768 User Datagram ProtocolRFC 791 Internet Protocol v4RFC 792 Internet Control Message ProtocolRFC 792 Transmission Control ProtocolRFC 826 Address Resolution ProtocolRFC 854 Telnet ProtocolRFC 1349 Type of Service ProtocolRFC 1706 DNS NSAP Resource RecordsRFC 1889 Real-time Transport Protocol (RTP)RFC 1890 Real-time Transport Control Protocol (RTCP)RFC 2030 Simple Network Time ProtocolRFC 2104 HMAC: Keyed-Hashing for Message AuthenticationRFC 2131 Dynamic Host Configuration ProtocolRFC 2401 Security Architecture for the Internet ProtocolRFC 2409 Internet Key ExchangeRFC 2475 Architecture for Differentiated Services (Diffserv)RFC 2617 Hypertext Transfer Protocol (HTTP) Authentication: Basic and Digest Access Authentication RFC 2782 A DNS RR for specifying the location of services (DNS SRV)RFC 2833 Real-time Transport Protocol Payload for DTMF Digits, Telephony Tones and Telephony SignalsRFC 2976 The SIP INFO MethodRFC 3261 Session Initiation Protocol (SIP version 2)RFC 3262 Reliability of Provisional Responses in the Session Initiation Protocol (SIP).RFC 3263 Session Initiation Protocol (SIP): Locating SIP ServersRFC 3264 An Offer/Answer Model with the Session Description Protocol (SDP)RFC 3265 Session Initiation Protocol (SIP)-Specific Event NotificationRFC 3323 A Privacy Mechanism for SIPRFC 3325 Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted NetworksRFC 3550 RTP - A Real Time Protocol for Real-Time Applications RFC 3581 An Extension to the Session Initiation Protocol (SIP) for Symmetric Response RoutingTable 67   Firmware Specifications (continued)FEATURE DESCRIPTION
 Chapter 18 Product SpecificationsUser’s Guide 181RFC 3611 RTP Control Protocol Extended Reports (RTCP XR)-XRRFC 3715 IP Sec/NAT CompatibilityRFC 3842 A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP)IEEE 802.3 10BASE5 10 Mbit/s (1.25 MB/s)IEEE 802.3u 100BASE-TX, 100BASE-T4, 100BASE-FX Fast Ethernet at 100 Mbit/s (12.5 MB/s) with auto-negotiationTable 69   Voice FeaturesCall Park and Pickup Call park and pickup lets you put a call on hold (park) and then continue the call (pickup). The caller must still pay while the call is parked.When you park the call, you enter a number of your choice (up to eight digits), which you must enter again when you pick up the call. If you do not enter the correct number, you cannot pickup the call. This means that only someone who knows the number you have chosen can pick up the call. You can have more than one call on hold at the same time, but you must give each call a different number.Call Return With call return, you can place a call to the last number that called you (either answered or missed). The last incoming call can be through either SIP or PSTN.Country Code Phone standards and settings differ from one country to another, so the settings on your WiMAX Modem must be configured to match those of the country you are in. The country code feature allows you to do this by selecting the country from a list rather than changing each setting manually. Configure the country code feature when you move the WiMAX Modem from one country to another.Do not Disturb (DnD) This feature allows you to set your phone not to ring when someone calls you. You can set each phone independently using its keypad, or configure global settings for all phones using the command line interpreter.Auto Dial You can set the WiMAX Modem to automatically dial a specified number immediately whenever you lift a phone off the hook. Use the Web Configurator to set the specified number. Use the command line interpreter to have the WiMAX Modem wait a specified length of time before dialing the number. Phone config The phone configuration table allows you to customize the phone keypad combinations you use to access certain features on the WiMAX Modem, such as call waiting, call return, call forward, etc. The phone configuration table is configurable in command interpreter mode.Table 68   Standards Supported  (continued)STANDARD DESCRIPTION

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