User ManualTable of ContentsImportant Safety Information3Additional Safety Information3Table of Contents5About This Guide11Introduction11How to Use ThisGuide11Conventions11Year 2000 Compliance12Introduction13Introduction1356K Access13Applications13Local Networking with Access to the Internet14Local Networking with Access to a Remote Office14Features15Ease of Installation and Use15High Performance15Connectivity15Routing15Bandwidth Management15Remote Management15Protocols16Error Control and Data Compression16Modulation Schemes16Security16Upgradability16Diagnostics16Warranty17Support for Internet Applications1756K LAN Modem Functionality Description19Connection Types1956K Technology19LAN Side Connection19Application Sharing over the LAN20WAN Connection21One High Speed Connection21Sharing the Connection21Call Routing Protocol and IP Address Translation22Placing a Call to a Previously Defined Destination22Call Routing While No Other Calls are Connected22Understanding VPNs and PPTP23Setting Up the Server Side of the Tunnel24Setting Up the Client Side of the Tunnel24For Windows Dial-Up Networking Users24Establishing a Tunnel via the LAN Modem24Hardware Description and Installation27Package Contents27Before You Install the 56K LAN Modem27Front Panel LED Description28Back Panel Connector Description29Installing the 56K LAN Modem29Before You Begin29Installing the Analog Cable30Connecting to a 10BASE-T Ethernet Port30Connecting to Another Ethernet Hub31Before You Begin31Installing Analog Equipment32Installing the Power Cable32Setting Up TCP/IP for Windows and Macintosh35TCP/IP Setup Using Windows 95 and 9835TCP/IP Setup Using Windows NT 4.038TCP/IP Setup Using Mac OS 7.6 or later41TCP/IP Setup Using Windows 3.1142Setting up TCP/IP using MS_TCP42Configuring the 56K LAN Modem45Typical Configuration45Before You Begin45You Should Have This Information46Determine Whether You Use Dynamic or Static IP Addresses46Setting Up Your Computer If You Have a Static IP Address47For Windows 98 and 95 Users47For Windows NT 4.0 Users47For Macintosh Users48For Windows 3.11 Users48Configuring the 56K LAN Modem for the Typical Configuration49Configuring a Static IP Address on the 56K LAN Modem52Configure Additional Parameters5356K LAN Modem Main Page54Links From the Illustration54Links from the Buttons55Advanced Configuration57Advanced Configuration57Setting Up Additional Service Providers57ISP Versus Private Network58When to Select ISP58When to Select Private Network58Setting Up a Connection to an ISP58Before You Begin58Setting Up a Connection to the Internet59Setting Up a Connection to a Private Network62Before You Begin62Setting Up a Connection to a Remote LAN62Associating Service Providers with Computers on the LAN65Editing Service Provider Profiles66Restricting Access to Service Providers66Configuring LAN Parameters67Understanding LAN Parameters67Name67IP Address and Subnet Mask67Local Domain Name68Enable DHCP Server68Enable NetBIOS Filtering68Configuring the LAN Parameters68Configuring Modem Control Parameters69Understanding Modem Controls69Connection Controls69Mode Controls69Protocol Controls69Changing Modem Controls70Changing Data Call Parameters71Understanding Data Call Parameters71Minimum Call Duration71Disconnecting an Automatic Data Call71Disconnecting a Manual Data Call72Number of Times to Redial for a Manual Call72Delay Between Redial Attempts When Placing a Manual Call72Configuring the Data Call Parameters72Selective Password Protection72Changing Your Password73What If I Forget My Password?73Locking and Unlocking the Configuration73Configuring the LAN Modem from a Remote Location74Configuring the LAN Modem Remotely via Another LAN Modem74Configuring the LAN Modem Remotely via an Analog Modem74Placing, Receiving and Disconnecting Calls77Placing Calls77Placing a Call Automatically77Call Routing Among Service Providers77Placing a Call Manually78Placing a Call Manually to a Temporary Service Provider78Receiving Calls79Receiving Voice Calls79Receiving Data Calls79Auto Answer79Disconnecting Calls80Disconnecting Calls Manually80Disconnecting Calls Automatically Using Timers80Minimum Call Duration80Idle Timeout80Using a Connection Script80Before You Begin80Accessing the Script Configuration Page81Creating a Connection Script82Connection Script Command Syntax82Using the Configuration Buttons82Additional Configuration Buttons84Troubleshooting and Maintenance85Checking the Basics85Monitoring LEDs85Monitoring the ALERT LED85Monitoring the LAN Port Status LEDs86Evaluating Symptoms and Solutions86Finding More Information90Contacting Technical Support90Downloading Firmware to Your 56K LAN Modem90Resetting the 56K LAN Modem to a Factory Default Setting90Resetting the 56K LAN Modem to the Factory Defaults90Reviewing Statistics91Understanding System Statistics91Understanding Current Call Information91Understanding Last Call Information92Understanding Service Provider Information93Networking Primer95What is a network?95What is a LAN?95What is a WAN?95How does a LAN connect to a WAN?96What is a LAN Modem?96What is a POTS connection?96How do different devices communicate with each other?96What is TCP/IP?96What is an IP Address?96What is a Subnet Mask?97Dynamic and Static IP Addresses97What is DHCP?97What is DNS?97What is NAT?98What are numbered and unnumbered links?98How is overall throughput determined?98What is a modem?98What is the difference between analog and digital signals?98What is error correction?98What is Data Compression?98How does 56K technology work?99Possible Limitations99Using the Custom Web Browser101Custom Links101Using Favorites102Installing the Custom Internet Explorer Browser102Installing Future Releases of Internet Explorer102Factory Defaults10356K LAN Modem Factory Defaults103Specifications105General Specifications105Year 2000 Compliance105Glossary1073Com Corporation Limited Warranty113FCC Class B Statement114FCC Declaration of Conformity115Size: 1.77 MBPages: 116Language: EnglishOpen 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