Netopia 4541 Scheda informativa del prodotto

Netopia

™

4541 and 4542

ADSL Routers

User’s Reference Guide

This manual and any associated artwork, software, and product designs are copyrighted with

part, without the prior written consent of Netopia, Inc. Under the law, copying includes

translation to another language or format.

Netopia, Inc.

2470 Mariner Square Loop

Alameda, CA 94501-1010

U.S.A.

Part Number

For additional copies of this electronic manual, order Netopia part number 6161090-PF-02.

Printed Copies

For printed copies of this manual, order Netopia part number TER/Doc

(P/N 6161090-00-02).

Contents 1

Chapter 1 — Introduction..........................................................1-1

Overview....................................................................... 1-1

Features and capabilities ............................................... 1-1

How to use this guide .................................................... 1-2

Chapter 2 — Making the Physical Connections..........................2-1

Find a location............................................................... 2-1

What you need .............................................................. 2-1

Identify the connectors and attach the cables.................. 2-2

Netopia 4541/4542 ADSL Router status lights................ 2-3

Chapter 3 — Sharing the Connection.........................................3-1

Conﬁguring TCP/IP on Windows-based Computers............ 3-1

Dynamic conﬁguration (recommended)................... 3-2

Static conﬁguration (optional)................................ 3-3

Conﬁguring TCP/IP on Macintosh Computers ................... 3-5

Dynamic conﬁguration (recommended)................... 3-5

Static conﬁguration (optional)................................ 3-6

Chapter 4 — Connecting to Your Local Area Network.................4-1

Readying computers on your local network....................... 4-1

Connecting to an Ethernet network.................................. 4-2

Chapter 5 — Console-Based Management.................................5-1

Connecting through a Telnet session............................... 5-2

Conﬁguring Telnet software................................... 5-3

Connecting a console cable to your router ....................... 5-3

Navigating through the console screens .......................... 5-4

Chapter 6 — Easy Setup...........................................................6-1

Easy Setup console screens........................................... 6-1

Accessing the Easy Setup console screens............ 6-1

Quick Easy Setup connection path .................................. 6-2

DSL Line Conﬁguration ......................................... 6-3

Easy Setup Proﬁle................................................ 6-4

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2 User’s Reference Guide

IP Easy Setup ...................................................... 6-5

Easy Setup Security Conﬁguration ......................... 6-7

Chapter 7 — WAN and System Conﬁguration.............................7-1

WAN conﬁguration.......................................................... 7-1

Creating a new Connection Proﬁle................................... 7-4

The default proﬁle.......................................................... 7-7

IP parameters (default proﬁle) screen.................... 7-8

Scheduled connections.................................................. 7-8

Viewing scheduled connections............................. 7-9

Adding a scheduled connection........................... 7-10

Set Weekly Schedule.......................................... 7-11

Set Once-Only Schedule...................................... 7-12

Modifying a scheduled connection....................... 7-13

Deleting a scheduled connection......................... 7-13

System conﬁguration screens ...................................... 7-13

Navigating through the system conﬁguration screens...... 7-14

System conﬁguration features............................. 7-15

IP setup............................................................. 7-16

Filter sets (ﬁrewalls)........................................... 7-16

IP address serving ............................................. 7-16

Date and time.................................................... 7-16

Console conﬁguration......................................... 7-17

SNMP (Simple Network Management Protocol)..... 7-17

Security............................................................. 7-18

Upgrade feature set ........................................... 7-18

Logging ............................................................. 7-18

Installing the Syslog client .................................. 7-19

Chapter 8 — IP Setup...............................................................8-1

IP Setup........................................................................ 8-2

IP subnets........................................................... 8-4

Static routes........................................................ 8-6

IP Address Serving ...................................................... 8-10

Contents 3

IP Address Pools................................................ 8-13

DHCP NetBIOS Options....................................... 8-15

More Address Serving Options...................................... 8-17

Conﬁguring the IP Address Server options............ 8-18

DHCP Relay Agent........................................................ 8-23

Connection Proﬁles...................................................... 8-25

Chapter 9 — Multiple Network Address Translation ...................9-1

Overview....................................................................... 9-1

Features.............................................................. 9-1

Supported trafﬁc.................................................. 9-5

MultiNAT Conﬁguration................................................... 9-5

Easy Setup Proﬁle conﬁguration ............................ 9-6

Server Lists and Dynamic NAT conﬁguration........... 9-6

IP setup............................................................... 9-7

Modifying map lists............................................ 9-12

Adding Server Lists...................................................... 9-14

Modifying server lists ......................................... 9-17

Deleting a server ............................................... 9-19

Binding Map Lists and Server Lists............................... 9-20

IP proﬁle parameters.......................................... 9-20

IP Parameters (WAN Default Proﬁle)..................... 9-22

NAT Associations......................................................... 9-24

MultiNAT Conﬁguration Example.................................... 9-26

Chapter 10 — Virtual Private Networks (VPNs)........................10-1

Overview..................................................................... 10-1

About PPTP Tunnels ..................................................... 10-3

PPTP conﬁguration.............................................. 10-4

About IPsec Tunnels..................................................... 10-7

Conﬁguration ..................................................... 10-7

IP Proﬁle Parameters........................................ 10-10

Advanced IP Proﬁle Options............................... 10-11

Interoperation with other features...................... 10-12

4 User’s Reference Guide

About ATMP Tunnels................................................... 10-12

ATMP conﬁguration........................................... 10-12

Encryption Support.................................................... 10-15

MS-CHAP V2 and 128-bit strong encryption........ 10-15

ATMP/PPTP Default Proﬁle.......................................... 10-16

VPN QuickView .......................................................... 10-17

Dial-Up Networking for VPN......................................... 10-18

Installing Dial-Up Networking............................. 10-18

Creating a new Dial-Up Networking proﬁle .......... 10-19

Conﬁguring a Dial-Up Networking proﬁle ............. 10-20

Installing the VPN Client............................................. 10-21

Windows 95 VPN installation............................. 10-21

Windows 98 VPN installation............................. 10-22

Connecting using Dial-Up Networking................. 10-23

Allowing VPNs through a Firewall................................. 10-23

PPTP example.................................................. 10-24

ATMP example ................................................. 10-26

Chapter 11 — Security ...........................................................11-1

Suggested security measures....................................... 11-1

User accounts............................................................. 11-1

Telnet access.............................................................. 11-3

About ﬁlters and ﬁlter sets ........................................... 11-4

What’s a ﬁlter and what’s a ﬁlter set?.................. 11-4

How ﬁlter sets work............................................ 11-4

How individual ﬁlters work................................... 11-6

Design guidelines............................................. 11-11

Working with IP ﬁlters and ﬁlter sets............................ 11-12

Adding a ﬁlter set............................................. 11-12

Deleting a ﬁlter set........................................... 11-17

A sample ﬁlter set............................................ 11-17

Firewall tutorial.......................................................... 11-20

General ﬁrewall terms ...................................... 11-20

Contents 5

Basic IP packet components............................. 11-21

Basic protocol types......................................... 11-21

Firewall design rules......................................... 11-22

Filter basics..................................................... 11-24

Example ﬁlters................................................. 11-25

Chapter 12 — Monitoring Tools...............................................12-1

Quick View status overview .......................................... 12-1

General status................................................... 12-2

Current status ................................................... 12-3

Status lights...................................................... 12-3

Statistics & Logs......................................................... 12-4

Event histories ............................................................ 12-4

IP Routing Table........................................................... 12-7

General Statistics........................................................ 12-7

System Information...................................................... 12-9

SNMP......................................................................... 12-9

The SNMP Setup screen................................... 12-10

SNMP traps..................................................... 12-11

Chapter 13 — Utilities and Diagnostics...................................13-1

Ping............................................................................ 13-2

Trace Route................................................................. 13-4

Telnet client................................................................. 13-5

Factory defaults........................................................... 13-6

Transferring conﬁguration and ﬁrmware ﬁles with TFTP.... 13-7

Updating ﬁrmware.............................................. 13-7

Downloading conﬁguration ﬁles ........................... 13-8

Uploading conﬁguration ﬁles ............................... 13-9

Transferring conﬁguration and ﬁrmware ﬁles with

XMODEM..................................................................... 13-9

Updating ﬁrmware............................................ 13-10

Downloading conﬁguration ﬁles ......................... 13-11

Uploading conﬁguration ﬁles ............................. 13-11

6 User’s Reference Guide

Restarting the system................................................ 13-12

Appendix A — Troubleshooting..................................................A-1

Conﬁguration problems .................................................. A-1

Console connection problems ............................... A-2

Network problems................................................ A-2

How to reset the router to factory defaults ...................... A-3

Power outages............................................................... A-3

Technical support .......................................................... A-4

How to reach us................................................... A-4

Appendix B — Technical Speciﬁcations and Safety Information ..B-1

Description.................................................................... B-1

Power requirements ............................................. B-1

Environment ........................................................ B-1

Software and protocols......................................... B-1

Agency approvals........................................................... B-1

Regulatory notices ............................................... B-2

Important safety instructions................................ B-4

Limited Warranty and Limitation of Remedies-Revised January 2002

Introduction 1-1

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Overview

The Netopia 4541/4542 ADSL Router is a full-featured, stand-alone DSL router for connecting diverse local

area networks (LANs) to the Internet and other remote networks. The Netopia 4541/4542 ADSL Router uses a

high performance telecommunications line to provide your whole network with a high-speed connection to the

outside world. Model 4541 is designed for North American users; model 4542 is designed for non-North

American users. Both support the same features.

This section covers the following topics:

■

“Features and capabilities” on page 1-1

■

“How to use this guide” on page 1-2

Features and capabilities

The Netopia 4541/4542 ADSL Router provides the following features:

■

Support for IP routing for Internet and Intranet connectivity

■

ADSL WAN interface supports symmetric data rates from 144 kbps to 2.32 Mbps

■

Built-in VPN features offer secure Internet connections between remote ofﬁces and travelers

■

Built-in ﬁrewall protects LAN resources from Internet intruders

■

Support for Ethernet LANs with multiple Ethernet IP subnets

■

10/100-Base T Ethernet port connects easily to an existing LAN hub

■

Interoperable with a wide array of DSLAM equipment

■

Console-based Telnet client

■

UNIX syslog client

■

Status lights (LEDs) for easy monitoring and troubleshooting

■

Support for Console-based management

■

NAT/NATP, multi-NAT, and DHCP for security and convenience

■

Wall-mountable, Bookshelf (Side-stackable), or Desktop-stackable design for efﬁcient space usage

1-2 User’s Reference Guide

How to use this guide

In addition to the simple documentation contained in the accompanying

Getting Started Guide

, this guide is

designed to be your single source for information about your Netopia 4541/4542 ADSL Router. It is intended to

be viewed on-line, using the powerful features of the Adobe Acrobat Reader. The information display has been

deliberately designed to present the maximum information in the minimum space on your screen. You can keep

this document open while you perform any of the procedures described, and ﬁnd useful information about the

procedure you are performing.

You can also print out all of the manual, or individual sections, if you prefer to work from hard copy rather than

on-line documentation. The pages are formatted to print on standard 8 1/2 by 11 inch paper. We recommend

that you print on 3-hole punched paper, so that you can put the pages in a binder for future reference. For your

convenience, a printed copy is available from Netopia. Order part number TE4541/Doc.

This guide is organized into chapters describing the Netopia 4541/4542’s advanced features. You may want to

read each chapter’s introductory section to familiarize yourself with the various features available.

Use the guide’s table of contents and index to locate informational topics.

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