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    Quick Info

    Best For

    Network engineers, CCNA/CCNP students, and instructors who want a visual, browser-based lab with real packet behavior and an AI tutor

    Key Features

    Interactive network topology canvas
    Real isolated network instances
    Live packet tracing animation
    Topology-aware AI lab assistant

    Community Rating

    natted.cloud

    free • From Free
    Updated Aug 2026

    natted.cloud is a zero-install, browser-based network engineering platform that gives engineers, students, and educators a real sandbox for building and breaking network topologies. Unlike traditional simulators that fake protocol behavior, natted.cloud spins up real isolated network instances so packets actually traverse the topology you draw on its interactive canvas. A live packet tracing animation visualizes traffic as it moves through routers and switches, making abstract networking concepts tangible. The integrated AI lab assistant is topology-aware: it can see your current setup and guide you through debugging, configuration, and learning paths. With 66+ interactive labs covering BGP, OSPF, MPLS, VLANs, NAT, and more, it's a serious alternative to GNS3, EVE-NG, or Cisco Packet Tracer — without the install pain.

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    Pros

    • Real isolated network instances — not basic simulation
    • Zero-install, runs entirely in the browser
    • Live packet tracing animation makes flows visible
    • Topology-aware AI lab assistant for guided debugging
    • 66+ interactive labs covering BGP, OSPF, MPLS, and more

    Cons

    • Primarily geared toward learners and lab work, not production design
    • Browser performance can degrade with very large topologies
    • Niche audience — most useful if you study or work in networking
    • Some advanced vendor-specific CLI quirks may not be replicated
    Ready to get started?

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    All Features

    Interactive network topology canvas
    Real isolated network instances
    Live packet tracing animation
    Topology-aware AI lab assistant
    66+ guided interactive labs
    BGP, OSPF, MPLS protocol support
    Zero-install browser environment
    Free access for learners

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