Cisco Packet Tracer vs Cloonix

Cisco Packet Tracer is a free desktop network simulation and visualization tool for practicing networking, IoT and cybersecurity without physical lab hardware. Simulation Mode lets learners follow data as it travels through a network and analyze traffic. Physical Mode provides practice arranging a device rack and cables. The tool supports adding IoT devices, integrating Python code and practicing network automation. Tutored activities may provide hints, although Cisco says they are available for select courses. Packet Tracer runs on Windows, Linux and macOS, but not on smartphones or tablets. Learners can enroll in Cisco’s free Getting Started with Cisco Packet Tracer course to download the latest version. Installation opens a Packet Tracer Login window and may direct users to a browser for NetAcad sign-in. Some advanced functions, including multi-user Packet Tracer, require network access. On Ubuntu, Cisco’s instructions use the command line with elevated privileges. The Free plan costs nothing and requires course enrollment to download the latest version.

Cloonix is a free, AGPLv3 suite of C software components for creating virtual networks with KVM-based virtual machines and containers. It runs as a user-land application on a Linux distribution, with a web platform also listed. Users assemble machines, containers, and network items, connect them through Open vSwitch bridges, and view the topology on a graphical canvas. Virtual machines use QEMU-KVM; crun containers can use ZIP files or directories as root filesystems. Elements include NAT, host TAP and physical interfaces, links between Cloonix networks, and packet transit for dropping, shaping, or delaying traffic. The project names Open vSwitch, crun, QEMU-KVM, SPICE, and Wireshark as key components. A Wireshark spy can display or save captures on supported interfaces but is not the complete Wireshark application. Wi-Fi emulation uses vwifi and iw. Installation offers a privileged bundle or cloonix-toy without root requirements. The homepage lists version 53.01, dated November 4, 2025.