3Com 3C886 - page 6

WAN Connection 21

One High Speed Connection 21

Sharing the Connection 21

Call Routing Protocol and IP Address Translation 22

Placing a Call to a Previously Deﬁned Destination 22

Call Routing While No Other Calls are Connected 22

Understanding VPNs and PPTP 23

Setting Up the Server Side of the Tunnel 24

Setting Up the Client Side of the Tunnel 24

For Windows Dial-Up Networking Users 24

Establishing a Tunnel via the LAN Modem 24

3

H

ARDWARE

D

ESCRIPTION

AND

I

NSTALLATION

Package Contents 27

Before You Install the 56K LAN Modem 27

Front Panel LED Description 28

Back Panel Connector Description 29

Installing the 56K LAN Modem 29

Before You Begin 29

Installing the Analog Cable 30

Connecting to a 10BASE-T Ethernet Port 30

Connecting to Another Ethernet Hub 31

Before You Begin 31

Installing Analog Equipment 32

Installing the Power Cable 32

4

S

ETTING

U

P

TCP/IP

FOR

W

INDOWS

AND

M

ACINTOSH

TCP/IP Setup Using Windows 95 and 98 35

TCP/IP Setup Using Windows NT 4.0 38

TCP/IP Setup Using Mac OS 7.6 or later 41

TCP/IP Setup Using Windows 3.11 42

Setting up TCP/IP using MS_TCP 42

5

C

ONFIGURING

THE

56K LAN M

ODEM

Typical Conﬁguration 45

Before You Begin 45

You Should Have This Information 46

Determine Whether You Use Dynamic or Static IP Addresses 46

Setting Up Your Computer If You Have a Static IP Address 47

For Windows 98 and 95 Users 47

For Windows NT 4.0 Users 47

For Macintosh Users 48

For Windows 3.11 Users 48

Conﬁguring the 56K LAN Modem for the Typical Conﬁguration 49

Conﬁguring a Static IP Address on the 56K LAN Modem 52

Conﬁgure Additional Parameters 53

Contents

Main 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 I MPORTANT S AFETY I Page T ABLE ONTENTS OF Page DVANCED C A ONFIGURATION Page A D C B Page A BOUT T HIS G Introduction Conventions How to Use This Guide Year 2000 Compliance Table 3 Text Conventions 1 Introduction Applications Page Features Page Page Page 2 F Connection Types Page Page Call Routing Protocol and IP Address Translation Understanding VPNs and PPTP 23 Figure 7 IP Address Translation Understanding VPNs and PPTP Figure 8 Connection to an Remote Private Network via an ISP Page Page Page 3 I Package Contents Before You Install the 56K LAN Modem Front Panel LED Description Installing the 56K LAN Modem Page Page Installing the Power Cable Page Page 4 AND MACINTOSH TCP/IP Setup Using Windows 95 and 98 Page Page TCP/IP Setup Using Windows NT 4.0 Page Page TCP/IP Setup Using Mac OS 7.6 or later TCP/IP Setup Using Windows 3.11 Page Page 5 Typical Configuration Page Page Page Page Page Page Page Page 56K LAN Modem Main Page Page Page 6 Advanced Configuration Setting Up Additional Service Providers Page Page Page Page Page Page Page Associating Service Providers with Computers on the LAN Editing Service Provider Profiles Configuring LAN Parameters Page Configuring Modem Control Parameters Page Changing Data Call Parameters Selective Password Protection Changing Your Password Locking and Unlocking the Configuration Configuring the LAN Modem from a Remote Location Page Page 7 D Placing Calls Page Receiving Calls Disconnecting Calls Using a Connection Script Page Page Page Page 8 M Checking the Basics Monitoring LEDs Evaluating Symptoms and Solutions Page Page Page Finding More Information Contacting Technical Support Downloading Firmware to Your 56K LAN Modem Resetting the 56K LAN Modem to a Factory Default Setting Reviewing Statistics Understanding Last Call Information The last call information is described in Table 11. Table 10 Current Call Information Description (continued) Table 11 Last Call Information Description ended. Table 11 Last Call Information Description Table 12 Service Provider information description Page A What is a network? Page Page Page Page Page B Custom Links Using Favorites Installing the Custom Internet Explorer Browser C This appendix lists the factory default settings of the 56K LAN Modem. 56K LAN Modem Factory Defaults Table 13 56K LAN Modem Factory Defaults Page D General Specifications Year 2000 Compliance Page G PPTP Page Page A B C D I Page 3Com Corporation L IMITED W OfceConnect 56K LAN Modem H S Y EAR 2000 W OBTAINING WARRANTY S FCC C LASS B S FCC D ECLARATION OF C FCC P ART 68 S