3com OfficeConnect 3CR414492 Getting Started Manual

http://www.3com.com/

OfficeConnect

®

Remote 812 ADSL

Router Getting Started

Guide

Release 2.0

Part No. 10043336 AA

Published March 2001

ii

3Com Corporation

5400 Bayfront Plaza Santa Clara, California 95052-8145

reproduced in any form or by any means or used to make any derivative work (such as translation,

transformation, or adaptation) without written permission from 3Com Corporation.

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from time to time without obligation on the part of 3Com Corporation to provide notification of such

revision or change.

3Com Corporation provides this documentation without warranty of any kind, either implied or

expressed, including, but not limited to, the implied warranties of merchantability and fitness for a

particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s)

described in this documentation at any time.

UNITED STATES GOVERNMENT LEGENDS:

If you are a United States government agency, then this documentation and the software described

herein are provided to you subject to the following:

United States Government Legend: All technical data and computer software is commercial in

nature and developed solely at private expense. Software is delivered as Commercial Computer

Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in

FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard

commercial license for the Software. Technical data is provided with limited rights only as provided in

DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not

to remove or deface any portion of any legend provided on any licensed program or documentation

contained in, or delivered to you in conjunction with this Getting Started Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or

may not be registered in other countries.

3Com, the 3Com logo, and OfficeConnect Remote 812 are registered trademarks of

3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.

Acrobat and Acrobat Reader are trademarks of Adobe. Intel and Pentium are registered trademarks of

Intel Corporation. Internet Explorer, Microsoft, MS-DOS, Windows, Windows 95, and Windows NT are

registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of

Novell, Inc. Other brand and product names may be registered trademarks or trademarks of their

respective holders.

iii

TABLE OF CONTENTS

ABOUT THIS GUIDE

Introduction 1

Conventions 2

1 GETTING STARTED

Introduction 1-1

What’s in the Package? 1-1

What Can the OCR 812 Do? 1-2

What Are the Features of This Product? 1-2

SuperNAT 1-5

Virtual Private Networks 1-5

Tunneling Protocols 1-5

Encryption Protocols 1-6

SIP Phone Support 1-6

OCR 812 Boot Mode Options 1-6

Setting DHCP Smart Mode 1-7

Setting Bridge Mode 1-7

Setting Unconfigured Mode 1-8

DIP Switch Settings 1-8

2 INSTALLING THE OFFICECONNECT REMOTE 812 ADSL ROUTER

Introduction 2-1

Installing the OCR 812 Hardware 2-1

Back Panel Features 2-1

Configuring the OfficeConnect Remote 812 Hardware 2-3

LED Light Operation 2-4

Configuring the Workstation and Selecting a Mode 2-5

Using DHCP Smart Mode 2-5

Using the Default Bridge Mode 2-5

Using the Unconfigured Mode 2-6

Installing the OfficeConnect Remote 812 Software 2-6

Prerequisites 2-7

iv

To Install the OfficeConnect Remote 812 Software 2-7

Installing Microsoft Internet Explorer 2-7

Installing Adobe Acrobat 2-8

Installing Instant Update 2-9

To Install Instant Update 2-9

Configuring the OfficeConnect Remote 812 Manager 2-9

Configuring in Bridge Only Mode 2-9

Changing the Login Name and Password 2-9

Configuring in DHCP Smart Mode 2-10

Configuring in Unconfigured Mode 2-10

Using the Remote 812 IP Configuration Wizard 2-10

Using the Command Line Interface 2-10

Starting the OfficeConnect Remote 812 Manager 2-11

Configuration Using the Remote 812 IP Configuration Wizard 2-12

Setting Up a Remote Site Profile 2-12

Remote 812 IP Configuration Wizard Field Descriptions 2-12

Remote Site Name 2-12

Network Service 2-13

ATM VC Parameters 2-13

Port Address Translation 2-14

WAN IP Information 2-14

Resetting the Configuration of Your Router 2-15

3 TESTING THE CONFIGURATION

Introduction 3-1

General Testing 3-1

Step 1: Check Interface Status 3-1

Step 2: Check Network Status 3-2

IP Testing 3-3

Option 1: OfficeConnect Remote 812 Manager Ping to ISP or Remote Site

Network 3-3

DNS Errors 3-4

Option 2: DOS Ping to ISP or Remote Site Network 3-4

Option 3: Internet Browser (Internet Access Only) 3-5

Advanced Troubleshooting 3-5

v

A CONFIGURING YOUR WORKSTATION TO BE A DHCP CLIENT

Workstation Configuration Using DHCP Smart Mode A-1

B SAFETY INFORMATION

Important Safety Information B-2

Wichtige Sicherheitsinformationen B-3

Important notice de securite B-4

Medidas de seguridad importantes B-6

Informazioni importanti per la sicurezza B-7

B-7

C SPECIFICATIONS

Introduction C-1

General Specifications C-1

Power requirements C-1

Temperature requirements C-1

Humidity requirements C-1

MTBF (Mean Time Between Failures) C-1

Jacks C-1

ADSL Interface (one RJ-11 jack) C-2

LAN Interface (four RJ-45 jacks) C-2

Console Interface (DB-9) (Default configured as DCE) C-2

INDEX

FCC DECLARATION OF CONFORMITY

3COM CORPORATION LIMITED WARRANTY

vi

ABOUT THIS GUIDE

Introduction

The guide describes the features, installation, and initial

configuration of the OfficeConnect

®

Remote 812 ADSL

Router (OCR 812). The guide is intended for both first-time

and experienced computer network users who want to

install and use the OCR 812.

With your new OCR 812, we have provided an Installation

CD and an Installation Map.

If you are using Windows, put the Installation CD in

your CD-ROM drive and follow the steps given on the

screens using your foldout Map.

If your operating system is Macintosh or Unix-based,

you can begin by following the steps on the Map to set

up the hardware and then copying (or referencing) files

on the CD at Step 4. In Step 5, Configure the OCR 812,

you follow the instructions given for the type of Boot

Mode you have configured. There are small differences

in the procedure.

After you have initially configured the unit, you can

implement additional configuration to optimize the unit’s

performance on your network.

Refer to the OfficeConnect Remote 812 Online User’s

Guide (install from your OfficeConnect Remote 812

Installation CD) for advanced configuration options and the

Online HTML Help. Click the help buttons located on the

Tools page and the context-sensitive buttons on the

Configuration page for more information.

This Getting Started Guide is available in Adobe Acrobat

Reader Portable Document Format (PDF) or HTML on the

OCR 812 World Wide Web site located at:

http://www.3com.com/ocr812/

ii ABOUT THIS GUIDE

You can also learn about other 3Com products by going to

the following web site location:

http://www.3com.com/

Conventions

Table 0-1 and Table 0-2 list conventions that are used

throughout this guide.

Ta ble 0-1 Notice Icons

Notice Type Description

NOTE Information that describes important features or

instructions

Caution Information that alerts you to potential loss of data

or potential damage to an application, system, or

device

Warning Information that alerts you to potential personal

injury

Ta bl e 0- 2 Text Conventions

Convention Description

Screen displays This typeface represents information as it appears on the

screen.

The words “enter”

and “type”

When you see the word “enter” in this guide, you must

type something, and then press Return or Enter. Do not

press Return or Enter when an instruction simply says

“type.”

Keyboard key names If you must press two or more keys simultaneously, the

key names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

Words in italics Italics are used to:

Emphasize a point.

Denote a new term at the place where it is defined in

the text.

Identify menu names, menu commands, and software

button names. Examples:

From the Help menu, select Contents.

Click OK.

Highlight the name of a referenced book or pdf file.

1

GETTING STARTED

Introduction

This chapter provides instructions for pre-installation of the

OCR 812.

What’s in the Package?

What can the OCR 812 do?

What are the Features of this Product?

OCR 812 Boot Modes

What’s in the Package?

Before you install the OCR 812, check the contents of the

box against the packed contents checklist below. If any of

the items have been damaged in transit or are missing,

contact the 3Com dealer from whom the equipment was

purchased.

The OCR 812 Package contains the following:

OCR 812 unit

Power adapter and power cord

Ethernet cable (RJ-45 — RJ-45)

DSL cable (RJ-11 — RJ-11)

Console cable (DB-9 — DB-9)

OCR 812 Installation Map

CD-ROM containing the following:

OfficeConnect Remote 812 ADSL Router Getting

Started Guide (.pdf format only)

OfficeConnect Remote 812 ADSL Router Online

User’s Guide (viewable in your web browser)

OfficeConnect Remote 812 CLI User’s Guide (.pdf

format only)

1-2 CHAPTER 1: GETTING STARTED

Microsoft Internet Explorer version 5.5 in English,

Spanish, and Korean.

OfficeConnect Remote 812 Manager web-based

help files, the Instant Update Install program, and

the IP Wizard.

Note: The Instant Update Install program and the IP Wizard

are operational only for Windows users at this time.

What Can the OCR 812 Do?

The OCR 812 is a stand-alone BRouter with data interfaces

to a Local Area Network (LAN) and a Wide Area Network

(WAN).

A BRouter is a router with bridging capability that

understands how to route specific types of packets, such as

TCP/IP packets. The bridge function of the Brouter forwards

packets to other network(s) connected to the device.

The following is a representation of how your OCR 812

connects a LAN and WAN:

What Are the Features of This Product?

The following table displays the primary features of the

OCR 812:

What Are the Features of This Product? 1-3

Ta bl e 1- 1 OCR 812 Features

OCR 812 Features Feature Description

Super Network Address Translation

(SuperNAT)

Uses Network Address Translation (NAT)

and Port Address Translation (PAT)

intelligently together to send packets

over the network, and translates public

addresses to private ones.

Port Address Translation (PAT) An address translation protocol that

supports simultaneous connections from

different workstations on the LAN with

one public IP address.

Network Address Translation (NAT) An address translation protocol that

supports simultaneous connections from

different workstations on the LAN with

one or more public IP addresses. The

mapping can be done dynamically or

statically.

There are two types of NAT:

Dynamic NAT — Dynamically maps a

public address from a pool of

addresses to the private address of

your workstation on your LAN.

Static NAT— Statically maps a public

address to the private address of your

workstation on your LAN.

Virtual Private Network (VPN) A protected computer network that acts

like a private network over the Internet.

When the MPPE and PPTP protocols are

used together, a VPN is created.

Point-to-Point Protocol (PPP) Negotiates and establishes a connection

between two peers to provide a

standard method for transporting

multi-protocol datagrams over

point-to-point links. Sets the MSCHAPv1

authentication protocol.

Layer Two Tunneling Protocol (L2TP),

Point-to-Point Tunneling Protocol (PPTP)

Tunneling protocols that you use to

protect and configure a VPN.

MPPE An encryption protocol used to make a

tunnel private.

Supported by Microsoft CHAPv1, an

authentication protocol set with the

PPP command.

Session Initiation Protocol (SIP) Support Allows SIP telephones to connect to

Ethernet ports.

1-4 CHAPTER 1: GETTING STARTED

Generic Routing Encapsulation (GRE) A proposed Internet protocol

transported within other tunneling

protocols in a VPN.

ADSL WAN interface port Contains one port that connects to the

wide area network (WAN).

Asynchronous Transfer Mode (ATM) A network technology that transmits

video, audio, and computer data packets

in very small sizes over the same

network.

RFC 1483 protocol A defined protocol standard that

describes two encapsulation methods,

routed and bridged, for carrying

network traffic over ATM.

LAN interface A four-port Ethernet 10Base-T hub.

Networked workstations Allow one or more to connect to other

computers on a remote LAN and also

provide high-speed access to the

Internet.

Bridging Supports learning bridge and 802.1d

spanning tree functionality to eliminate

loops.

Internet Protocol (IP) and Internetwork

Packet Exchange (IPX) protocols

A protocol used to route data from

source to destination.

Routing Information Protocol (RIP) Specifies how routers exchange routing

table information.

Simple Network Management Protocol

(SNMP)

Provides a set of protocols for managing

complex networks.

Address translation Using Dynamic NAT, Static NAT,

SuperNAT, and Intelligent PAT.

Dynamic Host Configuration Protocol

(DHCP)

A protocol for assigning dynamic IP

addresses to devices on a network.

DHCP also provides services for your

LAN, including automatic assignment of

IP addresses to workstations.

Telnet Connects your PC to a server on the

network.

Packet filtering Provides an extensive set of data filtering

capabilities.

OCR 812 Manager Contains the Web-based online user’s

guide, Tools, Configuration, and

Monitor modes that support your 812

configuration. These modes have online

Help for each configuration function.

Ta bl e 1- 1 OCR 812 Features

What Are the Features of This Product? 1-5

The following are new features for the current release:

SuperNAT

SuperNAT is an address translation protocol that is

activated when data packets arrive destined for a public

address that matches both NAT and PAT rules. SuperNAT

first tries to use NAT address translations. If this does not

work, PAT address translation is used. You can configure

SuperNAT from the Web pages or the CLI.

NOTE: You cannot use the public WAN port IP address of

the OfficeConnect 812 as one of the NAT or SuperNAT

static or dynamic public IP addresses.

Virtual Private Networks

A Virtual Private Network (VPN) is a computer network that

contains characteristics of a private network operating

through the public infrastructure, like the Internet. You can

use several tunneling and encryption protocols to configure

a VPN and ensure that data remains secure in a private

tunnel that simulates a point-to-point connection.

Tunneling Protocols

Tunneling allows workstations on one network to send

data by encapsulating it in an IP data stream. You use

tunneling to move data between administrative domains

that use a protocol not supported by the Internet that

connects those domains.

The following are tunneling protocols:

L2TP - Layer Two Tunneling Protocol, an extension to

the PPP protocol that enables Internet Service Providers

(ISPs) to operate VPNs. L2TP merges the best features of

two other tunneling protocols: PPTP from Microsoft and

L2F from Cisco Systems. Like PPTP, L2TP requires that

the ISP's routers support the protocol.

PPTP - Point-to-Point Tunneling protocol, ensures the

security of messages transmitted from one VPN to

another. Generic Routing Encapsulation (GRE), a

proposed protocol that encapsulates and transports the

data portion of packets as they are routed, is also

1-6 CHAPTER 1: GETTING STARTED

supported. No additional configuration of the OCR 812

is required to support GRE.

Encryption Protocols

Microsoft Point-to-Point Encryption (MPPE) encrypts data in

PPTP VPN connections. MPPE provides privacy to a tunnel.

When you use MPPE and PPTP together, a VPN is created.

You can set the MPPE protocol on the Tunnel Modify web

page using the Encryption Algorithm field. From the CLI,

you set MPPE by specifying MSCHAPv1. See the CLI User

Guide for more information.

SIP Phone Support

Session Initiation Protocol (SIP) is an IP protocol that

supports a networked telephone that converges voice and

data on a single network. This instrument is a smart device

that performs many of the functions that are traditionally

handled by the phone company’s central office equipment.

When you connect SIP and the OCR 812, the SIP phone is

registered with the proxy server supplied by your ISP. If you

want to use SIP and NAT, you must select the PAT option of

NAT. For more information, see the Remote 812 ADSL

Router Online User’s Guide.

OCR 812 Boot Mode Options

To simplify the installation process, the OCR 812 can be

initialized with pre-configured parameters using the DIP

switches located on the back of the unit. These are the

Boot Mode options:

DHCP Smart Mode

Bridge Mode

Unconfigured Mode (the default)

ANSI Mode

MultiMode

N

OTE: These boot modes only take effect if the unit has not

been previously configured. To erase the existing

configuration and reset your unit, see Resetting the

Configuration of Your Router in Chapter 2.

OCR 812 Boot Mode Options 1-7

Setting DHCP Smart Mode

You can use the DHCP Smart Mode if:

You plan on using private addresses on the LAN (such

as, your Service Provider has provided you with only 1

public IP address)

You plan on using the server for the OCR 812 DHCP

The OCR 812 will automatically start up with the following

“DHCP Smart Mode” configuration:

LAN IP address = 192.168.200.254, Netmask

255.255.255.0.

DHCP IP address pool (40 addresses): 192.168.200.1-40

Domain Name: dummy.net

DNS Host: name = ocrdsl-3com.com,address =

192.168.200.254

Administrative Login profile, User Name: root and

Password:!root

Setting Bridge Mode

Use this mode if you want the OCR 812 to function as a

bridge automatically, with no special configuration. You are

not required to use the IP Wizard or install any software

from the CD unless:

You want to change the configuration.

You want to use Instant Update when a software

update to your OCR 812 is posted on the 3Com web

site. You can install Instant Update from the CD at any

time. For more information, see the OfficeConnect

Remote 812 Online User’s Guide.

1 Verify the Virtual Path Identifier/Virtual Channel Identifier

(VPI/VCI) settings in Table 1-2. These settings are

parameters that are connected with the Asynchronous

Transfer Mode (ATM). For more detailed information, see

the OfficeConnect Remote 812 Online User’s Guide.

2 Match the values your Service Provider has given you. See

the table under DIP Switch Settings. The OCR 812 will start

up with the following configuration:

Bridge network on the LAN Interface

1-8 CHAPTER 1: GETTING STARTED

A remote site profile named “bridge” is set up to bridge

all traffic with RFC 1483 encapsulation on the specified

VPI/VCI.

Spanning Tree Disabled

Administrative Login profile: User Name: root and

Password:!root

Setting Unconfigured Mode

Use this versatile mode if you want to boot the unit

without any configuration. You can manually configure the

unit to operate in any way, including Bridge Mode or DHCP

Smart Mode.

1 Set all switches to OFF to boot your unit in Unconfigured

Mode.

2 You must set all of the configuration parameters. This

allows you complete flexibility with your configuration.

DIP Switch Settings

The Dual Inline Package (DIP) switch settings initialize the

OCR 812 with pre-configured parameters. The

corresponding Boot Mode options are as follows:

Table 1-2 DIP Settings

on position = set ADSL to ANSI mode

off position = set ADSL to Multimode

Your service provider gives you the VPI/VCI settings, but if

you want to change them, go to the Remote Site

1 2 3 4 Mode

off on off off DHCP Smart Mode

off off on off Bridge Mode, VPI=0,

VCI=35 (default settings)

off off off on Bridge Mode,

VPI=8, VCI=35

off off off off Default Unconfigured

Mode

on off off off ANSI

off off off off Multimode

OCR 812 Boot Mode Options 1-9

Configuration option on the Configuration web page and

select the Remote Site Add Configuration web page or use

the CLI commands. See the Online User’s Guide for more

information.

1-10 CHAPTER 1: GETTING STARTED

2

INSTALLING THE

O

FFICECONNECT REMOTE

812 ADSL R

OUTER

Introduction

In this release of the OCR 812, we have provided an

Installation Map and Install CD to help you set up and

install your unit, get started, and use the OCR 812

successfully.

This chapter is organized in the following sections:

Installing the OCR 812 Hardware

Configuring the OCR 812 Hardware

Configuring the Workstation and Selecting a Mode

Installing the OCR 812 Software

Configuring the OCR 812 Manager

Starting the OCR 812 Manager

Resetting the Configuration of Your Router

Installing the OCR 812 Hardware

This section provides a quick hardware setup procedure for

the OCR 812. Follow the steps below to learn more about

setting up your router.

Back Panel Features

Below is a representation of the back panel. Familiarizing

yourself with the connections helps you to properly set up

your OCR 812.

Console Port — You do not need to use the Console

Port unless you are setting up the

2-2 CHAPTER 2: INSTALLING THE OFFICECONNECT REMOTE 812 ADSL ROUTER

OCR 812 in Unconfigured Mode and thus need to use

the Command Line Interface (CLI) to configure your

router. The DB-9 terminal port connects the OCR 812 to

your console. Then you would use a terminal emulator

program to access the CLI and run the Quick Setup and

QuickVC scripts. See the Installation Map for

instructions.

Reset button — This button, located on the rear of the

OCR 812, resets the configuration of the router. See

Resetting the Configuration of Your Router for more

information about resetting your router’s configuration

with the Reset button.

DIP (Dual Inline Package) Switches (4) — Switches 1

through 4 can be turned on and off in certain

combinations for different configurations. See OCR 812

Boot Mode Options in Chapter 1 for complete

instructions on the switches to set for specific

configurations.

Power Inlet — The power port attaches to an external,

15-volt DC power supply included in your package. The

other end of the power supply cable connects to a

standard electrical socket.

Ethernet (LAN) Ports (4) — The shielded, 8-pin, RJ-45

Ethernet (10Base-T) ports connect the OCR 812 with

the LAN. A 10Base-T cable is provided to make this

connection.

MDI/X Switch — Swaps the transmit (Tx) and receives

(Rx) signal pairs on Ethernet port 1.

When the MDI/X button is pressed in, then Port 1 on

the unit becomes a cascade hub port, for

connection to a non-cascade port on another hub.

When the MDI/X button is not pressed, Port 1 is

pinned the same as the remaining 3 ports. In this

mode, a workstation’s ethernet port or the cascade

port on another hub can be connected to any of the

four ports on the unit.

NOTE: The MDI/X button must not be pressed in to use

Port 1 for connection to a workstation.

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