3COM 09-1632-000 User Manual

Getting Started with
the OfficeConnect®
NETBuilder® 10
Bridge/Router

http://www.3com.com/

Part No. 09-1632-000
Published May 1999

3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145

Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be
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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improvements or changes in the product(s) and/or the program(s) described in this documentation at
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If there is any software on removable media described in this documentation, it is furnished under a
license agreement included with the product as a separate document, in the hard copy documentation,
or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to
locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described
herein are provided to you subject to the following:

All technical data and computer software are 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 pr ovided
with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987),
whichever is applicable. You agr ee 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 User Guide.

Portions of this documentation are reproduced in whole or in part with permission from (as appropriate).
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, NETBuilder, and OfficeConnect are registered trademarks of

3Com Corporation.
All other company and product names may be trademarks of the respective companies with which they

are associated.
Guide written by Linda Lininger. Edited and Illustrated by Amy Guzules. Produced by Julie Laccabue.

ONTENTS

C

C

ONFIGURING YOUR OFFICECONNECT

B

RIDGE/ROUTER

Prerequisites 6
Preconfiguration Set Up 7

Set Up the NMS as a DHCP Client 7
Install the OfficeConnect on a Tabletop 7
Cable the Bridge/Router 7
Turn on Power to the OfficeConnect 9
Restart the NMS DHCP Client 9
Launch Web Link 10

Configuration Procedure 12

Configuring ISDN Lines 13
Configuring Dynamic Dial 18
Configuring Network Addressing for Your Network 20
Configuring PPP Authentication 24

NETB

UILDER

10

T

ECHNICAL SUPPORT

Online Technical Services 27

World Wide Web Site 27
3Com Knowledgebase Web Services 28
3Com FTP Site 28
3Com Bulletin Board Service 28

3Com Facts Automated Fax Service 29
Support from Your Network Supplier 29
Support from 3Com 30
Returning Products for Repair 31

3COM C

FCC C

ORPORATION LIMITED WARRANTY

LASS

A V

ERIFICATION STATEMENT

FCC C

LASS

B S

TATEMENT

FCC D

ECLARATION OF CONFORMITY

3COM END U

SER SOFTWARE LICENSE AGREEMENT

C

ONFIGURING YOUR

O

FFICECONNECT

NETB
B

RIDGE/ROUTER

UILDER

10

This guide contains the information you need to install and
configure your OfficeConnect® NETBuilder® 10
bridge/router.

The basic configuration that you will establish is shown in
Figure 1. This configuration supports a leased-line
connection between two OfficeConnect bridge/routers. It
also supplies an ISDN dial-on-demand backup line.

As you are configuring your router, you will be asked to
make choices based on what is required on your network.

Figure 1

Network management system

Basic Configuration

Office A

IP 10.1.0.0

OfficeConnect

bridge/router

ISDN

OFFICE
CONNECT

NETBuilder
Router

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IPX = AAA

Leased line
IPX = CCC
IP = unnumbered

ISP

Internet

IP 20.1.0.0

Network management system

ISDN

OfficeConnect

bridge/router

OFFICE
CONNECT

NETBuilder
Router

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Office B

IPX = BBB

6

C

ONFIGURING YOUR OFFICECONNECT

The instructions in this guide describe how to configure
Office A. After you’ve completed the configuration for
Office A, the same configuration steps need to be
performed at Office B.

This guide has the following sections:

■

■

■

Prerequisites

Before you begin installing and configuring your
OfficeConnect bridge/router, you must satisfy the following
prerequisites:

■

■

■

■

NETB

UILDER

10 B

RIDGE/ROUTER

Prerequisites
Preconfiguration Set Up (which includes installing the

OfficeConnect hardware)
Configuration Procedure

You must have a PC on your network that will function
as your network management station (NMS).

This NMS must have browser software that is
compatible with Web Link: either Netscape Navigator

4.08 or later, or Microsoft Internet Explorer 4.01 or
later.

Web Link is the web-based network management
application that comes with your OfficeConnect
NETBuilder bridge/router.

You need to obtain IP addresses and subnet masks for
your network.

You will also need to order a leased line and an ISDN
line from your telco provider or providers.

When your ISDN line is installed you will receive
information regarding the ISDN dial numbers, ISDN
switch type, and SPID numbers. Retain this information
for use during configuration.

Preconfiguration Set Up

Preconfiguration Set Up

This section describes the things you need to do before
performing the actual network configuration.

Set Up the NMS as a DHCP Client

Refer to the documentation that came with your PC
operating system for information on how to perform this
set up.

Install the OfficeConnect on a Tabletop

Attach the plastic feet supplied with your OfficeConnect
bridge/router; see Figure 2.

CAUTION

back of the bridge/router.

: Do not restrict air flow around the sides and

7

Figure 2

Attaching Plastic Feet to OfficeConnect

Bridge/Router

Remove feet from their adhesive backing.
Attach feet to the bottom of the chassis,

using the semi-circle marks for placement.

Cable the Bridge/Router

Figure 3 shows the back panel connectors on the
OfficeConnect bridge/routers. Refer to this figure when you
attach or plug in cables.

8

C

ONFIGURING YOUR OFFICECONNECT

NETB

UILDER

10 B

RIDGE/ROUTER

12-24V DC

1A MAX

+

–

(connect only one)

Figure 3

LAN Ethernet

connections

OfficeConnect Back Panel Connectors

XXXV000000

08002 XXXXXX
THRU XXXXXX

OFFICECONNECT
Model: ESPL-XXX
NETBuilder XXX XXX

WAN

line

20-XXXX-XXX 3CXXXXX
II I II III IIIII IIIIII

TP Console Serial WAN

9-pin serial

connection

to terminal or

PC serial port

II I II III IIIII II

Flex-WAN

connector to

modem

or CSU/DSU

Cable the Ethernet Connector

The OfficeConnect bridge/router accepts either a 10BASE-2
coaxial or 10BASE-T twisted pair (TP) Ethernet cable
connection.

Attach a coaxial Ethernet cable to the BNC connector using
a T-connector, or plug the 8-foot twisted pair cable
supplied with the OfficeConnect bridge/router into the slot
labeled TP.

Only one Ethernet connection is allowed.

Cable the Serial Port

Attach the special 3Com Flex-WAN cable to the port
labeled Serial.

Attach the Flex-WAN end of the cable to the OfficeConnect
bridge/router port. The other end of the cable has the
appropriate connector (V.35, X.21, or RS-232) for a serial
modem or CSU/DSU device.

You should have ordered the Flex-WAN cable when you
ordered your OfficeConnect bridge/router. You can order a
Flex-WAN cable from your local 3Com sales representative.

Plug the CSU/DSU or modem cable into the connector on
the Flex-WAN cable. Connect the CSU/DSU or modem to
the leased line provided by your telco vendor.

No leased line configuration is required. The OfficeConnect
NETBuilder 10 bridge/router automatically configures the
PPP connection when power to the bridge/router is turned
on.

Cable the ISDN Port

Plug the 8-foot RJ-45 cable supplied with the
OfficeConnect bridge/router into the port labeled WAN.

ISDN connections to an OfficeConnect bridge/router used
in the U.S. and Canada also require a network termination
(NT1) device and power supply. These can be leased from
the telephone company or purchased from an ISDN
equipment vendor. In other countries, you do not need to
provide this equipment because the function of the
equipment is provided by the ISDN equipment at your site.

Turn on Power to the OfficeConnect

Attach the power cord to the power receptacle on the back
panel. This receptacle is labeled with the electrical rating
for the power adapter included with your OfficeConnect
bridge/router.

The OfficeConnect bridge/router does not have a power
switch.

To turn power on, plug the other end of the power cord
into an electrical outlet.

CAUTION

: Make certain you plug the OfficeConnect
bridge/router into an easily accessible electrical outlet
located near the unit.

Preconfiguration Set Up

9

Wait for all the LEDs to turn green. When the LEDs are
green you are ready to continue.

To turn off power or to reset the bridge/router, unplug the
power cord from the outlet.

Restart the NMS DHCP Client

When you restart the PC, the NMS DHCP client (your PC)
acquires an IP address from the OfficeConnect
bridge/router DHCP server, which is enabled by default.

10 CONFIGURING YOUR OFFICECONNECT NETBUILDER 10 BRIDGE/ROUTER

This step is necessary to establish the connection between
your NMS and the OfficeConnect bridge/router.

You are now ready to begin configuring your network.

Launch Web Link

Web Link is a built in web-based management tool that
you can use to configure your OfficeConnect NETBuilder 10
bridge/router .

1 Point the browser at the default IP address, 10.1.0.1.
2 Log on using the user name Root with no password.

The Web Link home page opens in the browser window.
Figure 4 Web Link Home Page

Banner

Navigation frame Main window

Figure 4 shows the Web Link home page. This page
contains the NETBuilder banner (with buttons to

Preconfiguration Set Up 11

web-based information), a navigation frame, and a main
window. The navigation frame lets you select from the
Web Link basic functions. The contents of the navigation
frame and the main window of the page change
depending on what function you have selected.

You can return to the Web Link home page at any time by
clicking Web Link in the banner.

3 Assign a default password to the root user.

a In the navigation frame, click the Configuration link.
b In the navigation frame, click the IP Routing link.
c In the navigation frame, click the System Parameters

link.

d Enter your new password and confirm it in the fields

provided.

e Click Apply.

If you have the Web Link help window open on your
display, you may need to use the vertical scroll bar to bring
the Apply button into view.

12 CONFIGURING YOUR OFFICECONNECT NETBUILDER 10 BRIDGE/ROUTER

Configuration Procedure

This section provides step by step instructions for
configuring the set up shown in Figure 5.

Figure 5 Office A Configuration

Network management system

Office A

IP 10.1.0.0

OfficeConnect

bridge/router

ISDN

ISP

Internet

OFFICE
CONNECT

NETBuilder
Router

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ISDN

IP 20.1.0.0

IPX = AAA

Leased line
IPX = CCC
IP = unnumbered

OfficeConnect

bridge/router

OFFICE
CONNECT

NETBuilder

Router

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Office B

IPX = BBB

Network management system

In these instructions, your site is Office A.
To configure your OfficeConnect NETBuilder 10

bridge/router, follow the steps in the following sections:

■ Configuring ISDN Lines:

■ If you are located in North America, use the

procedure in “Configuring ISDN (In North America)”
on page 13.

■ If you are located outside North America, use the

procedure in “Configuring ISDN (Outside North
America)” on page 16.