Table of Contents
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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
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
Table of Contents
Express L128/L128T User Manual
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Table of Contents
