Functionality Description, Connection Types | 3Com 3C892 specification

ISDN LAN MODEM

2 FUNCTIONALITY DESCRIPTION

This chapter provides a description of the key functionality of the ISDN LAN

Modem. It includes the following topics:

■Connection Types

■Call Routing Protocol and IP Address Translation

■Understanding Multilink PPP and Bandwidth on Demand

■Understanding Dynamic Bandwidth Allocation

■Understanding PPTP

For a basic understanding of ISDN and networking, refer to Appendix A.

Connection Types

The ISDN LAN Modem provides LAN side and WAN side connections.

LAN Side Connection On the LAN side, up to four users can connect to the LAN Modem’s built in Ethernet hub, or up to 25 users may connect to the LAN Modem via an external user-supplied hub, enabling users to share files and printers and to use Internet email. An example of ten workstation connections is shown in An example of 10 workstation connections is shown in Figure 4.

10 Mbps

Ethernet LAN

OfficeConnect®

Hub 8 TPO

Office

Connect

Hub

OfficeConnect®

ISDN LAN Modem

OfficeConnect®

ISDN LAN Modem

Figure 4 ISDN LAN Modem LAN Connection with 10 Workstations

An example of a single connection is shown in Figure 5.

Image 17

3Com 3C892 manual Functionality Description, Connection Types, An example of a single connection is shown in Figure

Contents

OfficeConnect Isdn LAN Modem Bayfront Plaza 3Com CorporationSanta Clara, California 95052-8145 Table of Contents Hardware Description and Installation Advanced Configuration Supplementary Voice Call Services Troubleshooting and Maintenance Glossary Index 3COM Corporation Limited Warranty Shows where to find specific information in this guide How to UseAbout this Guide This Guide List conventions that are used throughout this guide ConventionsIcon Description Convention Description Introduction Access to the InternetIntroduction Applications A Remote Office Access to a Remote OfficeNetwork locally Ease of Installation and Use FeaturesHigh Performance Connectivity Voice Features Remote management using the same Web browser interfaceBandwidth Management Remote Management Warranty DiagnosticsIsdn Standards and Interface Security Introduction An example of a single connection is shown in Figure Functionality DescriptionConnection Types LAN Application Sharing over the LAN Kbps B2 Location connection to a remote office LAN Call Routing While No Other Calls Are Connected TranslationDestination What is BACP/BAP? What is Multilink PPP?Understanding Multilink PPP Call Routing While One Call Is Already Connected Understanding Multilink PPP Configuration OptionsDynamic Bandwidth Allocation Network Understanding VPNsPptp For Windows Dial-Up Networking Users Package Contents Hardware Description InstallationBefore You Install Isdn LAN Modem Color Description Front Panel LED DescriptionFront panel provides the following LEDs Before You Begin Installing the Isdn LAN ModemDescription 10BASE-T Ethernet Port Installing the Isdn Cable To install the Isdn cable 10BASE-T Hub-to-Hub Connection Common scenario, is as follows Analog Equipment Connection Telephone standard, their operation is not guaranteed Cable Installing the Power To install the power cableWall Mounting the Isdn LAN Modem Using Stacking Clips Using Rubber Feet and Stacking Clips TCP/IP Setup Using Setting UP TCP/IP for Windows MacintoshYou may be prompted for your installation disks or CD-ROM Windows 98 Select Network Component Type Dialog Box TCP/IP Setup Using Windows 98 and Windows 95 Windows NT Have not already set up TCP/IP, do the followingYou will need your Windows NT 4.0 installation CD-ROM TCP/IP Setup Using Windows NT 4.0 Network Protocols Group Box TCP/IP Setup Using Mac OS 7.6 or later Select Unlisted or Update Protocol and then click OK From the Network group box, click Network Setup TCP/IP Setup Using Windows 3.11 Setting UP TCP/IP for Windows and Macintosh Typical Configuration Configuring the Isdn LAN ModemBefore You Begin Displayed on your computer Addresses For Windows NT 4.0 Users For Windows 98 and 95 Users You are asked to restart your computer Click OK Uncheck Enable Automatic Dhcp ConfigurationFor Macintosh Users For Windows 3.11 Users Click Continue Configuring the Isdn LAN Modem for the Typical Configuration Set Password Window ISP Wizard Window Click Continue Click Continue Isdn LAN Modem WebWizard Main Main Isdn LAN Modem Main Configuring the Isdn LAN Modem Main configuration page, do the following Advanced Configuration Direct Connection to an ISP When to Select ISP To an ISP When to Select Private NetworkSetting Up a Connection to the Internet ISP Service Provider Selection Window Setting Up Additional Service Providers Setting Up a Connection to a Remote LAN Private Network Service Provider Selection Window Advanced Configuration Setting Up Additional Service Providers Provider Profiles Editing Service Configuring Your LAN Accessing Service ProvidersRestricting Workstations from Enable NetBIOS Filtering Enable Dhcp ServerIP Address and Subnet Mask Local Domain Name Changing Data Call Parameters Minimum Call Duration Disconnecting an Automatic Data CallDisconnecting a Manual Data Call Disconnect Delay Connect DelayConnect/Disconnect Threshold for the Second B Channel Call Parameters Default Voice Call Routing Configuration Reserving Dhcp Selective PasswordAddresses Protection Changing Your PasswordIsdn LAN Modem, do the following OfficeConnect Isdn LAN Modem Isdn Information Sheet Isdn Parameters Screen Configuring the Isdn Configuring the Isdn LAN Modem from a Remote LocationLAN Modem Remotely Following Via an Isdn Modem Click TCP/IP Settings Advanced Configuration Descriptions of each supplementary voice service follow Supplementary Voice Call ServicesSupplementary Voice Services Call Waiting On port 1 and disabled on portWaiting Click Isdn Parameters How Do Do This Go to the Isdn LAN Modem’s main page http//3com.oc.lanmodem Caller IDCaller ID Date and Time To enable or disable Flexible Calling, do the following Be enabled on your second telephone number as wellFlexible Calling Isdn LAN Modem Three-Way Calling Call ConferenceReceived or have placed the first call Order to activate Call Conference Reminder that Call Forwarding is still in effect Call ForwardingThrough the Isdn LAN Modem Supplementary Voice Call Services Placing Calls PLACING, Receiving Disconnecting CallsPlacing a Call Automatically Manually To an Existing ServicePlacing a Call Manually Provider Temporary Call Participating in aPlacing Multilink PPP Calls Calls Disconnecting DataAutomatically Manually Seconds, a second B channel is added, if not already in use Idle Timeout PLACING, Receiving and Disconnecting Calls Unauthorized opening of the unit will void the warranty Troubleshooting Maintenance Monitoring LEDs Instructions to resolve the problem B1/B2 LED State Possible Cause SolutionLEDs Solutions Evaluating SymptomsSolutions Symptoms, Causes, and Solutions Possible Cause Symptom Possible Cause Solution For call coming up To Use two B Channels Enabled on your Isdn line Negotiation will not be successful Finding More Isdn LAN Modem Resetting the Isdn LAN ModemInformation Contacting Technical System Statistics Description System Call Information InformationIsdn Line Information Description Current Call For This Call Information Type Description For This Call Last Call Information Type Description Understanding Last Call Information Provider Information Service Provider Information Description Example of a LAN Networking Primer How does a LAN connect to a WAN? What is a network? Subnet Mask What is an IP Address? What is a Subnet Mask? What is a network? Appendix a Networking Primer Configuration and information Web sites Using the Custom WEB Browser Installing the Custom Using FavoritesInternet Explorer Browser Isdn LAN Modem Factory C Defaults Appendix C Isdn LAN Modem Factory Defaults Environmental Operating Range Refer to for the Isdn LAN Modem specificationsPower Year 2000 Compliance EZ-ISDN 1A Ordering Isdn Service This completes the procedure for ordering your Isdn line Simultaneous Voice Data on the Same Telephone Number Limitations of Isdn Ordering Codes U EZ-ISDN 1, V Call Forwarding Variable -- for Call Forwarding Numbers For Lucent Technologies 5ESS SwitchesFor Siemens Ewsd Switches For Nortel DMS-100Switches Ordering Code Table of IsdnCapabilities Codes for use with the Isdn LAN Modem Channel to call Glossary Kbps Layer Firmware IP address Glossary Glossary 127 Index UDP 3Com Corporation Limited Warranty Declaration Canadian Notice