Introduction To Ipsec; Ipsec Files - Bay Networks NauticaRS Reference Manual

Nortel nautica nauticars software: reference guide

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Table of Contents

NauticaRS 5.5R Reference Guide

Introduction to IPSec

IPSec in Nautica routers operates in tunnel mode. This means that

the original IP frame is encrypted and encapsulated in a new IP

frame for transport across an unsecured network by creating a

tunnel. This is achieved by using a protocol known as

encapsulating security protocol (ESP).

ESP requires that the router forming one end of the tunnel has two

distinct IP addresses; a public address, from which tunnel data

can be sent and received, and a private address, used inside the

On Nautica routers the private address is usually the address of

the ETH/LAN01 path and the public address can be created by

using a numbered link to some remote router, or by using network

address translation (NAT).

For more information on NAT, refer to Chapter 15.

To take advantage of IPSec, your router must have the correct

version of software.

the routers to which they pertain. For information on how to

download files to your router, refer to Chapter 4.

Nautica Marlin

Nautica 250 (Australia) n250au1.bay

Nautica 250 (Europe)

Nautica 250 (Japan)

Nautica 250 (U.S.)

Nautica 4000

below lists all the IPSec files and

Nautica IPSec Files

n4000_is.bay

117237-E Rev.00

Nauticars 5.5r