Manuale UtenteSommarioReference Manual for the Model DG824M Wireless ADSL Modem Gateway1Contents5Preface About This Guide13Audience13Technical Support13Typographical Conventions14Special Message Formats14Chapter 1 Introduction15About the Gateway15Key Features15802.11b Standards-based Wireless Networking16A Powerful, True Firewall16Content Filtering17Auto Sensing and Auto Uplink™ LAN Ethernet Connections17Protocol Support17Easy Installation and Management18What’s in the Box?20The Gateway’s Front Panel20The Gateway’s Rear Panel22Chapter 2 Connecting the Gateway to the Internet23What You Will Need Before You Begin23Cabling Requirements23Computer Hardware Requirements24LAN Configuration Requirements24Internet Configuration Requirements24Where Do I Get the Internet Configuration Parameters?24Procedure 2-1: Record Your Internet Connection Information26Connecting the DG824M Wireless ADSL Modem Gateway to Your LAN27Procedure 2-2: Connecting the Gateway27Connecting the DG824M to the Internet31Procedure 2-3: Auto-Detecting Your Internet Connection Type32Procedure 2-4: Wizard-Detected PPPoE Login Account Setup33Procedure 2-5: Wizard-Detected PPPoA Login Account Setup34Procedure 2-6: Wizard-Detected Dynamic IP Account Setup36Procedure 2-7: Wizard-Detected Fixed IP (Static) Account Setup37Testing Your Internet Connection38Manually Configuring Your Internet Connection39Procedure 2-8: Manual Configuration40Chapter 3 Wireless Configuration43Considerations For A Wireless Network43Implement Appropriate Security43Observe Placement and Range Guidelines43Wireless Settings44Procedure 3-1: Configuring Basic Wireless Network Settings45Using the Wireless Access by MAC Address Feature46Procedure 3-2: Restricting Wireless Access by MAC Address47Configuring Wired Equivalent Privacy (WEP)48Configuring WEP (Wired Equivalent Privacy)49Chapter 4 Protecting Your Network51Protecting Access to Your DG824M Wireless ADSL Modem Gateway51Procedure 4-1: Changing the Built-In Password51Procedure 4-1: Changing the Administrator Login Timeout52Configuring Basic Firewall Services53Blocking Keywords, Sites, and Services53Procedure 4-2: Block Keywords and Sites53Rules55Inbound Rules (Port Forwarding)57Outbound Rules (Service Blocking)60Order of Precedence for Rules62Services63Procedure 4-3: Define Services63Setting Times and Scheduling Firewall Services64Procedure 4-4: Setting Your Time Zone64Procedure 4-5: Scheduling Firewall Services66Chapter 5 Managing Your Network67Backing Up, Restoring, or Erasing Your Settings67Upgrading the Gateway’s Firmware69Network Management Information71Viewing Gateway Status and Usage Statistics71Viewing Attached Devices75Viewing, Selecting, and Saving Logged Information76Examples of log messages78Enabling Security Event E-mail Notification79Running Diagnostic Utilities and Rebooting the Router81Enabling Remote Management82Chapter 6 Advanced Configuration85Configuring Advanced Security85Setting Up A Default DMZ Server85Procedure 6-1: Configuring A Default DMZ Server.86Respond to Ping on Internet WAN Port86Configuring LAN IP Settings87LAN TCP/IP Setup87Procedure 6-1: Configure LAN TCP/IP Setup90Configuring Dynamic DNS91Procedure 6-2: Configure Dynamic DNS92Using Static Routes93Static Route Example93Procedure 6-3: Configuring Static Routes94Chapter 7 Troubleshooting97Basic Functioning97Power LED Not On98Test LED Never Turns On or Test LED Stays On98LAN or WAN Port LEDs Not On98Troubleshooting the Web Configuration Interface99Troubleshooting the ISP Connection100ADSL link100Obtaining a WAN IP Address101Troubleshooting PPPoE or PPPoA102Troubleshooting Internet Browsing102Troubleshooting a TCP/IP Network Using the Ping Utility103Testing the LAN Path to Your Router103Testing the Path from Your PC to a Remote Device104Restoring the Default Configuration and Password105Using the Default Reset button105Problems with Date and Time105Appendix A Technical Specifications107Appendix B Network and Routing Basics109Related Publications109Basic Router Concepts109What is a Router?110Routing Information Protocol110IP Addresses and the Internet110Netmask112Subnet Addressing113Private IP Addresses115Single IP Address Operation Using NAT116MAC Addresses and Address Resolution Protocol117Related Documents117Domain Name Server118IP Configuration by DHCP118Ethernet Cabling119Uplink Switches and Crossover Cables119Cable Quality120Internet Security and Firewalls120What is a Firewall?120Stateful Packet Inspection121Denial of Service Attack121Wireless Networking121Wireless Network Configuration121Extended Service Set Identification (ESSID)122Authentication and WEP Encryption123Wireless Channel Selection123Appendix C Preparing Your Network125Preparing Your Computers for TCP/IP Networking125Configuring Windows 95, 98, and Me for TCP/IP Networking126Install or Verify Windows Networking Components126Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me128Selecting Windows’ Internet Access Method130Verifying TCP/IP Properties130Configuring Windows NT4, 2000 or XP for IP Networking131Install or Verify Windows Networking Components131DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4132DHCP Configuration of TCP/IP in Windows XP132DHCP Configuration of TCP/IP in Windows 2000134DHCP Configuration of TCP/IP in Windows NT4137Verifying TCP/IP Properties for Windows XP, 2000, and NT4139Configuring the Macintosh for TCP/IP Networking140MacOS 8.6 or 9.x140MacOS X140Verifying TCP/IP Properties for Macintosh Computers141Verifying the Readiness of Your Internet Account142Are Login Protocols Used?142What Is Your Configuration Information?142Obtaining ISP Configuration Information for Windows Computers143Obtaining ISP Configuration Information for Macintosh Computers144Restarting the Network145Glossary147Index151Dimensioni: 2,86 MBPagine: 154Language: EnglishApri il manuale
Manuale Di RiferimentoSommarioReference Manual for the Model DG824M Wireless ADSL Modem Gateway1Contents5Chapter 1 About This Guide11Audience, Conventions, Scope11How to Use this Manual12How to Print this Manual13Chapter 2 Introduction14About the Gateway14Key Features14802.11b Standards-based Wireless Networking15A Powerful, True Firewall15Content Filtering16Auto Sensing and Auto Uplink™ LAN Ethernet Connections16Protocol Support16Easy Installation and Management17What’s in the Box?18The Gateway’s Front Panel19The Gateway’s Rear Panel20Chapter 3 Connecting the Gateway to the Internet22What You Will Need Before You Begin22ADSL Microfilter Requirements22ADSL Microfilter22ADSL Microfilter with Built-In Splitter23Ethernet Cabling Requirements23Computer Hardware Requirements23LAN Configuration Requirements23Internet Configuration Requirements24Where Do I Get the Internet Configuration Parameters?24Record Your Internet Connection Information25Connecting the DG824M to Your LAN26How to Connect the Gateway26Connecting the DG824M to the Internet30Auto-Detecting Your Internet Connection Type30Wizard-Detected PPPoE Login Account Setup32Wizard-Detected PPPoA Login Account Setup33Wizard-Detected Dynamic IP Account Setup35Wizard-Detected IP Over ATM Account Setup36Wizard-Detected Fixed IP (Static) Account Setup37Testing Your Internet Connection38Manually Configuring Your Internet Connection39Manual Configuration40Chapter 4 Wireless Configuration44Considerations for a Wireless Network44Observe Performance, Placement, and Range Guidelines44Implement Appropriate Wireless Security45Understanding Wireless Settings46How to Set Up and Test Basic Wireless Connectivity47Restricting Wireless Access to Your Network48Restricting Access to Your Network by Turning Off Wireless Connectivity49Restricting Wireless Access Based on the Wireless Network Name (SSID)49Restricting Wireless Access Based on the Trusted PCs List49Choosing WEP Authentication and Security Encryption Methods51Authentication Type Selection51Encryption Choices52How to Configure WEP52Chapter 5 Protecting Your Network54Protecting Access to Your DG824M Wireless ADSL Modem Gateway54How to Change the Built-In Password54Changing the Administrator Login Timeout55Configuring Basic Firewall Services55Blocking Keywords, Sites, and Services56How to Block Keywords and Sites56Rules58Inbound Rules (Port Forwarding)59Inbound Rule Example: A Local Public Web Server59Inbound Rule Example: Allowing Videoconferencing61Considerations for Inbound Rules61Outbound Rules (Service Blocking)62Outbound Rule Example: Blocking Instant Messenger62Order of Precedence for Rules64Services65How to Define Services65Setting Times and Scheduling Firewall Services66How to Set Your Time Zone66How to Schedule Firewall Services68Chapter 6 Managing Your Network70Backing Up, Restoring, or Erasing Your Settings70How to Back Up the Configuration to a File70How to Restore a Configuration from a File71How to Erase the Configuration71Upgrading the Gateway’s Firmware71How to Upgrade the Gateway Firmware72Network Management Information73Viewing Gateway Status and Usage Statistics73Viewing Attached Devices77Viewing, Selecting, and Saving Logged Information77Selecting What Information to Log79Saving Log Files on a Server80Examples of log messages80Activation and Administration80Dropped Packets80Enabling Security Event E-mail Notification81Running Diagnostic Utilities and Rebooting the Router82Enabling Remote Management83Configure Remote Management84Chapter 7 Advanced Configuration86Configuring Advanced Security86Setting Up A Default DMZ Server86How to Configure a Default DMZ Server.87Respond to Ping on Internet WAN Port87Configuring LAN IP Settings87DHCP90Use Gateway as DHCP server90Reserved IP addresses91How to Configure LAN TCP/IP Settings91Configuring Dynamic DNS92How to Configure Dynamic DNS93Using Static Routes94Static Route Example94How to Configure Static Routes95Chapter 8 Troubleshooting98Basic Functioning98Power LED Not On99Test LED Never Turns On or Test LED Stays On99LAN or WAN Port LEDs Not On99Troubleshooting the Web Configuration Interface100Troubleshooting the ISP Connection101ADSL link101WAN LED Blinking Yellow101WAN LED Off101Obtaining a WAN IP Address102Troubleshooting PPPoE or PPPoA103Troubleshooting Internet Browsing103Troubleshooting a TCP/IP Network Using the Ping Utility104Testing the LAN Path to Your Router104Testing the Path from Your PC to a Remote Device105Restoring the Default Configuration and Password105Using the Default Reset button106Problems with Date and Time106Appendix A Technical Specifications108Appendix B Network and Routing Basics110Related Publications110Basic Router Concepts110What is a Router?111Routing Information Protocol111IP Addresses and the Internet111Netmask113Subnet Addressing114Private IP Addresses116Single IP Address Operation Using NAT117MAC Addresses and Address Resolution Protocol118Related Documents118Domain Name Server119IP Configuration by DHCP119Internet Security and Firewalls119What is a Firewall?120Stateful Packet Inspection120Denial of Service Attack120Ethernet Cabling120Category 5 Cable Quality121Inside Twisted Pair Cables122Uplink Switches, Crossover Cables, and MDI/MDIX Switching123Appendix C Preparing Your Network126Preparing Your Computers for TCP/IP Networking126Configuring Windows 95, 98, and Me for TCP/IP Networking127Install or Verify Windows Networking Components127Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me129Selecting Windows’ Internet Access Method131Verifying TCP/IP Properties131Configuring Windows NT4, 2000 or XP for IP Networking132Install or Verify Windows Networking Components132DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4133DHCP Configuration of TCP/IP in Windows XP133DHCP Configuration of TCP/IP in Windows 2000135DHCP Configuration of TCP/IP in Windows NT4138Verifying TCP/IP Properties for Windows XP, 2000, and NT4140Configuring the Macintosh for TCP/IP Networking141MacOS 8.6 or 9.x141MacOS X141Verifying TCP/IP Properties for Macintosh Computers142Verifying the Readiness of Your Internet Account143Are Login Protocols Used?143What Is Your Configuration Information?143Obtaining ISP Configuration Information for Windows Computers144Obtaining ISP Configuration Information for Macintosh Computers145Restarting the Network146Appendix D Wireless Networking Basics148Wireless Networking Overview148Infrastructure Mode148Ad Hoc Mode (Peer-to-Peer Workgroup)149Network Name: Extended Service Set Identification (ESSID)149Authentication and WEP150802.11b Authentication150Open System Authentication151Shared Key Authentication151Overview of WEP Parameters152Key Size153WEP Configuration Options154Wireless Channels154Glossary156Index160Dimensioni: 3,07 MBPagine: 163Language: EnglishApri il manuale
