Practice Labs, Simulators, Emulators

Router Simulators and Emulators

Cisco Packet Tracer

  • Download Packet Tracer
  • Labs & Tutorials
  • Use the Pre-configured Packet Tracer Labs, as they have some initial setup of devices, connections, etc., for Lammle’s Hands-On Labs from the CCNA Routing and Switching Study Guide, 2nd Ed.
  • Note: If a pre-configured Lab is missing IP addresses, click the “Reset Activity” button at the bottom of the instructions window.

How to access rommon in Cisco Packet Tracer, as Ctrl+Break does not work.

          1. enable
          2. config terminal
          3. config-register 2100
          4. end
          5. reload


  • GNS3 is a graphical network simulator that allows simulation of complex networks.
  • Dynamips, the core program used with GNS3 that allows Cisco IOS emulation.


Boson NetSim

Practice Network Labs and Tutorials

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