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2-Port Broadband Router
with Built-in ADSL Modem
Compatible with all leading DSLAMs
Supports DMT line modulation
Supports full-rate ADSL (G.992.1 & T1.413, Issue 2)
- Up to 8 Mbps downstream and 640 Kbps upstream
Supports G.lite ADSL (G.992.2)
- Up to 1.5 Mbps downstream and 512 Kbps upstream
Supports DSL handshaking (G.994.1)
Multiple user Internet access with a single user account
Plug & Play installation
Web-based management
User Guide
SMC7401BRA
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ADSL Router User Guide From our line of ADSL solutions May 2002 38 Tesla Part No: xx Irvine, CA 92618 Pub No: 150000014500E R01 Phone: (949) 679-8000
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Information furnished is believed to be accurate and reliable. However, no responsibility is assumed by our company for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of our company. We reserve the right to change specifications at any time without notice. Copyright © 2002 by SMC All rights reserved. Printed in Taiwan Trademarks: Product and compan
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LIMITED WARRANTY Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable
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LIMITED WARRANTY WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUME
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COMPLIANCES FCC - Class B This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with instructions, may cause harmful interference to radio communications. However, there is no guar
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COMPLIANCES The telephone company may make changes in its facilities, equipment, operations, or procedures that will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service. If trouble is experienced with this equipment, please contact our company at the numbers shown on back of this manual for repair and warranty information. If the trouble is causing harm to the telephone network, the telephone company may request you to remove
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COMPLIANCES EC Conformance Declaration - Class B This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied: RFI Emission: • Limit class B accor
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COMPLIANCES Taiwan BSMI Class A Australia AS/NZS 3548 (1995) - Class B vi
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TABLE OF CONTENTS 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Networking Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 ADSL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 ATM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS WAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Asynchronous Transfer Mode (ATM) . . . . . . . . . . . . . . . . . 3-9 Protocol Encapsulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Protocol Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 NAT Configuration . . . . . . . . . .
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TABLE OF CONTENTS Windows NT 4.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 Step 1. Configure TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . 4-10 Step 2. Disable HTTP Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 Step 3. Obtain IP Settings from Your Barricade . . . . . . . . . . . . 4-13 Configuring Your Macintosh Computer . . . . . . . . . . . . . . . . . . . . . . . . 4-14 Step 1. Configure TCP/IP Settings . . . .
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TABLE OF CONTENTS x
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CHAPTER 1 INTRODUCTION Congratulations on your purchase of the Barricade 2-Port Broadband Router with built-in ADSL Modem. We are proud to provide you with a powerful yet simple communication device for connecting your PC to the Internet. The Barricade is an Asynchronous Digital Subscriber Line (ADSL) network device that provides high-speed Internet access over existing phone lines. It supports both full-rate Discrete Multi-Tone (G.dmt) connection (up to 8 Mbps downstream and 640 Kbps upst
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INTRODUCTION services requiring guaranteed Quality of Service (QoS). The Barricade enables true telecommuting for the first time. It also provides multiprotocol encapsulation for bridging Windows NetBEUI and Novell’s IPX protocols directly to a remote site for complete access to corporate resources, or for routing TCP/IP traffic for Internet connections. Features and Benefits • High-speed Internet access over existing phone lines • Full-rate DMT connection (8 Mbps downstream, 640 Kbps upstr
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FEATURES AND BENEFITS • Supports pass-through for three of the most commonly used Virtual Private Network (VPN) protocols – PPTP, L2TP, and IPSec • Security protocols, including Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) • Always-on digital connection eliminates dial-up delays, and transparent reconnection when initiating a network request • Concurrent data and voice over a single connection (needs splitter for G.dmt but not G.lite) • Inter
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INTRODUCTION Networking Concepts ADSL Digital Subscriber Line (DSL) technology transmits both data and voice over ordinary telephone lines. Signals above 4 kHz are cut off in normal telephone communications as noise, so DSL uses this spectrum to transmit data. Since Internet users and people telecommuting from home normally download more data than they upload, Asymmetric Digital Subscriber Line (ADSL) is the preferred choice. Full-rate ADSL utilizes Discrete Multi-Tone (DMT) signaling to
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NETWORKING CONCEPTS Data flows are broken up into fixed length cells, each of which contains a Virtual Path Identifier (VPI) that identifies the path between two nodes, and a Virtual Circuit Identifier (VCI) that identifies the data channel within that virtual path. Each virtual circuit maintains a constant flow of cells between the two end points. When there is no data to transmit, empty cells are sent. And when data needs to be transmitted, it is immediately inserted into the cell flow.
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INTRODUCTION Routing If ATM Protocol Encapsulation is set for PPP/ATM or IP/ATM, the router will forward incoming IP packets and use RIP 2 for routing path management if enabled. The router supports both static routing and dynamic routing. • Static routing requires routing information to be stored in the router, either manually or when a connection is set up, by an application outside the router. • Dynamic routing uses a routing protocol to exchange routing information, calculate routing t
