3Com Router 3032 Manual de usuario

http://www.3com.com/

3Com Router

Configuration Guide

Published March 2004

Part No. 10014299

3Com Corporation

350 Campus Drive

Marlborough, MA

01752-3064

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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 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 User 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, are registered trademarks of 3Com Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and

Windows NT are registered trademarks of Microsoft Corporation. UNIX is a registered trademark in the United

States and other countries, licensed exclusively through X/Open Company, Ltd.

All other company and product names may be trademarks of the respective companies with which they are

associated.

GETTING STARTED 1

SYSTEM MANAGEMENT 33

INTERFACE 121

LINK LAYER PROTOCOL 183

NETWORK PROTOCOL 335

ROUTING 423

MULTICAST 517

SECURITY 543

VPN 615

RELIABILITY 665

QOS 681

DIAL-UP 721

ABOUT THIS GUIDE

This guide describes 3Com routers and how to configure them.

Conventions Table 1 and Table 2 list conventions that are used throughout this guide.

Table 1 Notice Icons

Table 2 Text Conventions

Icon Notice Type Description

Information 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.

Convention Description

Screen displays This typeface represents information as it appears on the screen.

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

linked with a plus sign (+), for example:

Press Ctrl+Alt+Del

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.”

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 command variables.

Identify menu names, menu commands, and software button names.

Examples:

From the Help menu, select Contents.

Click OK.

Words in bold Boldface type is used to highlight command names. For example, “Use

the display user-interface command to...”

2ABOUT THIS GUIDE

IGETTING STARTED

Chapter 1 3Com Router Introduction

Chapter 2 3Com Router User Interface

13COM ROUTER INTRODUCTION

This chapter includes information on the following topics:

■Overview of the 3Com Router System

■Architecture of the 3Com Router

■Features of the 3Com Router Version 1.10

■New Features of the 3Com Router 1.x

Overview of the 3Com

Router System The 3Com Router OS is the network operating system platform. With TCP/IP

protocol stack as the core, the 3Com Router integrates data communication

essentials such as routing technology, multicast technology, QoS technology, VPN

technology, security technology in the operating system and provides excellent

data transmission capability.

The 3Com Router can run on multiple hardware platforms with consistent

network interface, user interface and management interface, providing flexible

and multiple application solutions for users.

This manual describes features and functions of the 3Com Router 1.x system

software platform series of low end and middle range routers. In this manual the

3Com Router is also referred to as the 3Com Router 1.x software version. You

should make sure that the 3Com Router you use is operating with the software

version documented in this manual.

The software specification is different between various types of products. Product

specification related matters should be confirmed with the 3Com Technical

Support Department.

Architecture of the

3Com Router With TCP/IP model as its reference, the 3Com Router implements data link layer,

network layer, and application layer protocols, as per the architecture shown in the

following diagram:

6CHAPTER 1: 3COM ROUTER INTRODUCTION

Figure 1 Schematic diagram of the 3Com Router architecture

Features of the 3Com

Router Version 1.10 The following table lists the basic features of the 3Com Router 1.x:

Table 3 List of the 3Com Router 1.x features

System

service

TCP/UDP

IP forwarding engine

Fast

forwarding IP security

and firewall QoS

assurance

Route policy

management

RIP OSPF BGP

FTP

HTTP TELNET

VPN

PPP/SLIP

Configuration

management

Voice Service

......

Command

line

SNMP

Web

management

HDLC EthernetX.25Frame Relay

Attribute Description

Interconnection protocol LAN ■Supports Ethernet_II and Ethernet_SNAP frame structure

■Follows IEEE 802.2 and IEEE 802.3 regulations

WAN ■Supports Frame Relay and Frame Relay switching

■Supports FRoIP, FRoISDN

■Supports Multi-link Frame Relay (MFR), FR compression

■Supports FR Traffic Shaping (FRTS) to ensure even traffic over

the VCs on FR

■Supports X.25 and X.25 switching, X.25 Over TCP (XOT)

■Supports HDLC, SDLC and LAPB regulations

■Supports SLIP, PPP and MP

■Supports PPPoE Client

■Supports ITU-T Q.921 and Q.931 regulations, ISDN (ITU-T

Q.921, Q.931) and ISDN semi-permanent connection

■Supports bridging technology

Dial-up network ■Manages Modem through the AT command and configures

script to dial up.

■Supports dial demand Routing (dialer profiles and legacy

BDR)

■Supports Callback (PPP callback and ISDN Calling Line

Identification callback)

■Provides ISDN leased line, automatic dialing, and cyclic dial

queue backup

■Provides Dial interface backup

VPN ■Supports L2TP, implements VPDN (Supports DNIS user,

domain name user, and full name user)

■Supports L3 channel protocol GRE

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