Table of Contents

Quick Startup Guide

1

Setting up the ISDN Line

1

Connecting to an Internet Service Provider

2

Internet Access using Network Address Translation (NAT)

2

Multiprotocol Routing Between Two LANS

3

Remote/Home Office Accessing the Corporate LAN

3

Chapter 1. Understanding ISDN and the Express L128/L128T

7

ISDN Overview

7

THE Express L128/L128T

7

Applications

8

Single User to Corporate LAN

8

Single User IP to Internet Service Provider (ISP) using

 

Network Address Translation (NAT)

9

Multiple Users to Internet Service Provider (ISP) using NAT

10

Small Office - Home Office (SOHO) to Corporate LAN

11

Demand Routing and Bridging with the Express L128/L128T

12

Factory Default

12

Bridging

13

IP Routing

14

IPX Routing

15

Connection List - Simplifying and Enhancing the Dial Function

15

Concurrent Routing and Bridging

15

Routing over PPP Bridging

15

Network Address Translation Mode

16

Front Panel

16

LAN Indicators

16

WAN Indicators

17

Test Indicators

17

ISDN Connection

18

Ordering ISDN

19

Interoperability

19

Connecting to the Internet

19

Configuration

20

Security

20

Chapter 2. Installation

21

ISDN Network Connection

21

Local Area Network Connection

21

Telephone Connection (L128T Only)

22

Basic Telephone Service

22

Supplementary Services

22

DTMF Keypad

22

Customer Premises Wiring

23

61202.070L1-1

Express L128/L128T User Manual

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ADTRAN L128T user manual Table of Contents