Cisco GNS3 Tutorial: Setup an ISP Network connection with NAT Overload (Step-by-Step) - (Part-1)
In this hands-on Cisco GNS3 lab, you'll learn how to build a realistic ISP network connection and understand how enterprise networks connect to the Internet. This tutorial explains both the theory and the practical configuration, making it ideal for CCNA, CCNP, and networking enthusiasts.
📚 What you'll learn:
How to create an ISP topology in GNS3
Understanding ISP and Customer Edge (CPE) devices
Difference between private and public IP networks
How internal networks connect to the Internet
Configuring NAT Overload (PAT)
Understanding ip nat inside and ip nat outside
Internet access using Cisco routers
Best practices for lab design in GNS3
This lab is perfect for anyone preparing for CCNA, CCNP Enterprise, interviews, or looking to gain practical networking experience.