Hands On Cisco Packet Tracer: How To Create A Dmz Network

Design and Configure DMZ Networks Using Cisco Routers in Packet Tracer – A Practical Security Lab Course

What you'll learn

Understand what a DMZ (Demilitarized Zone) is and why it's critical in network security design.

Design and build a functional DMZ network in Cisco Packet Tracer.

Implement NAT and Port Forwarding to expose public services safely from the DMZ.

Use OSPF and static routing to connect internal, DMZ, and external networks logically and securely.

Apply Access Control Lists (ACLs) to tightly control traffic between internal, DMZ, and external networks.

Understand the role of edge routers, DMZ routers/firewalls, and internal LAN segmentation.

Control outbound and inbound traffic to protect internal resources and prevent unauthorized access.

Use real-world best practices to simulate enterprise-grade security setups—even in Packet Tracer!

Requirements

Basic knowledge of networking concepts such as IP addressing, subnets, and routing.

Familiarity with Cisco IOS commands (e.g., configuring interfaces, static routes, and basic ACLs).

Cisco Packet Tracer installed—this free tool will be used throughout the course.

A willingness to learn hands-on through practical, real-world network design scenarios.

Description

Are you ready to take your networking skills to the next level? Want to build secure network architectures just like the pros—without being held back by outdated tools? Then this course is for you.In this hands-on course, you'll learn how to design and configure a fully functional DMZ (Demilitarized Zone) Network using Cisco routers in Packet Tracer. You’ll start with the basics—what a DMZ is, why it’s important, and where it’s used. Then, you’ll dive into the practical skills: configuring an Edge Router, setting up the DMZ Firewall Router, connecting your internal LAN, and adding public-facing servers like web and mail servers. You’ll also configure NAT, port forwarding, OSPF routing, and powerful ACLs to manage and secure traffic between each zone.What makes this course different? It’s designed to be 100% hands-on, realistic, and engaging. You’re not just watching commands—you’re building, configuring, and troubleshooting like a true network engineer.By the end of this course, you’ll have:A fully working DMZ topology in Packet TracerA deep understanding of how to control traffic between internal, DMZ, and external networksPractical experience with NAT, ACLs, and routing protocols in a secure designThe confidence to design and explain DMZ networks in interviews or the workplaceWhether you're studying for certifications, building a lab, or just passionate about network security, this course gives you the skills to level up your networking career.Let’s build something powerful. Enroll now!

Overview

Section 1: Introduction

Lecture 1 Introduction to Course

Lecture 2 Dan Mill Training

Lecture 3 What is Cisco Packet Tracer?

Lecture 4 What is a DMZ? (Demilitarized Zone)

Lecture 5 Where are DMZ Networks used?

Section 2: Topology Planning in Packet Tracer

Lecture 6 The Edge Router

Lecture 7 The DMZ Firewall

Lecture 8 The Internal LAN Network

Lecture 9 The DMZ Network

Lecture 10 DMZ IP Addressing

Lecture 11 The Internet Service Provider

Section 3: IP Addressing and Subnetting for DMZ

Lecture 12 Network Design Overview

Lecture 13 Network Cabling

Lecture 14 IP Addressing and Subnetting

Section 4: Configuration Basics

Lecture 15 The Edge Router Configuration

Lecture 16 The Internet Simulation

Lecture 17 The DMZ Router Configuration

Lecture 18 The DMZ Configuration

Lecture 19 The Internal LAN Configuration

Lecture 20 Routing Network Design

Lecture 21 Routing on our Network

Lecture 22 Network Address Translation

Section 5: DMZ Access Control

Lecture 23 Access to the DMZ Servers

Lecture 24 How to combat Port Exhaustion Issues

Lecture 25 DMZ Access Control

Lecture 26 Internal LAN Access Control

Lecture 27 Troubleshooting the Internal LAN Access List

Lecture 28 Control DMZ Outbound

Lecture 29 Blocking Malicious Traffic

Section 6: Testing and Verifying the Setup

Lecture 30 Test Internal LAN to DMZ and Internet

Lecture 31 Test DMZ to Internet

Lecture 32 Lab Success

Lecture 33 Test Internet to DMZ

Section 7: Course Conclusion

Lecture 34 IT Certifications

Lecture 35 CCNA vs CCST

Lecture 36 Cisco Network Engineers

Aspiring Network Engineers who want to build real-world lab setups and understand DMZ architecture.,IT Students and Beginners looking to strengthen their understanding of network security concepts.,Sysadmins and Helpdesk Technicians ready to move into infrastructure and firewall roles.,Cybersecurity Enthusiasts wanting to learn how DMZs work and how to secure edge services.