Computer Networking · Intermediate level

Intermediate level · Module 5: Cisco Packet Tracer Labs · Lesson 1 of 3

Packet Tracer Basics

Get comfortable with the simulator.

In this lesson you will

  • Place and connect devices
  • Use realtime and simulation modes

Key concepts

device librarycablingsimulation modePDUs

The lesson

Cisco Packet Tracer is a network simulation tool from Cisco Networking Academy. You place routers, switches, PCs and servers, connect them and configure them as if they were real.

Realtime mode runs the network normally; simulation mode steps through packets so you can see each hop and protocol.

Simulation lets you test designs and practise without risking live networks or buying equipment.

Step by step

  1. Place a router, switch and two PCs.
  2. Connect them with correct cables.
  3. Configure addresses and ping.
  4. Watch the ping in simulation mode.

Practice activity

Build and test a small network in Packet Tracer.

Expected result: A working simulated network with ping observed in simulation mode.

Check your understanding

  1. What does simulation mode show?

    Show answer

    Each packet's journey step by step.

  2. Why use a simulator?

    Show answer

    To test and practise without risking live networks.

Taught live by an instructor — online or in person. Free course lessons are for self-study and do not lead to a certificate — see registration options.