User`s manual

1
1. Introduction
Thank you for using Moxa’s SMG-6100 IPSec Gateway and SMG-1100 MODBUS Gateway. These products help
you easily establish the secured network communication with the IPSec protection and the protocol conversion
between MODBUS/Serial and MODBUS/TCP. In this manual, you will learn how to configure and monitor the
SMG-6100 and the SMG-1100 for your network communication.
The following topics are covered in this chapter:

Overview

Introduction to IPSec VPN Connectivity
 IPSec VPN Requirements
 Typical IPSec VPN Scheme
 Planning IPSec VPNs
 Configuring IPSec Tunnels

Introduction to MODBUS Gateway
 MODBUS Gateway Applications
 MODBUS TCP Master
 MODBUS RTU/ASCII Master
 Managing MODBUS Gateway