The free Cisco Packet Tracer software helps you to practice your network configuration and troubleshooting skills using your desktop or laptop computer. It allows you to simulate networks without having access to physical equipment.

User Interface

Packet Tracer allows you to simulate real networks. It provides three main menus that you can use for the following:

The network management menu lets you do the following:

Creating a Simple Network

I added the following devices to the workspace:

workspace devices.png

Adding physical cabling between devices