Built like old stone, not cardboard. Each level has its own page with the full syllabus as a progress-saving checklist, hands-on labs mapped to real-world scenarios, and a growth check at the end. No level gets skipped — the foundation carries everything above it.
Before any certification: the raw fundamentals. This is now a dedicated page because “zero to hero” must truly begin at zero.
The entry point. Standards, addressing, endpoints, infrastructure, diagnostics and security basics — proven through help-desk-style labs.
The classic foundation: how the entire internet works. VLANs, OSPF, NAT, ACLs, security, automation basics. This level makes me employable as a network engineer.
Primary path: ENARSI first for deep routing, then ENAUTO for automation. Routing brain first, automation second.
The 8-hour-lab mindset: predict the network's state before typing a show command, build large topologies from memory, troubleshoot with a calm, strict method.
Not a certification target — a portfolio stage. Architecture decision records, design documents, business-aware trade-offs. The shift from “how do I configure it?” to “why this design?”
The Cisco path alone is not enough. This companion map adds the field skills recruiters and support teams actually expect.
The simulators and tools this whole journey runs on. Details per level on each level's page.
The main lab environment for Levels 0–2. Drag-and-drop topologies, real IOS commands.
Free (Cisco Networking Academy)Emulates real Cisco IOS. The step up from Packet Tracer — full command set, real SSH for automation scripts.
Free & open sourceProfessional emulation platform for CCNP/CCIE-scale topologies with dozens of devices.
Free (Community)Cisco's official virtual lab platform with legal, current images — what the CCIE lab exam itself runs on.
PaidPacket capture and analysis. Watching a TCP handshake turns theory into intuition. Used at every level.
FreeFree cloud-hosted real Cisco gear with API access — covers the automation topics with zero hardware.
FreeThe automation stack from CCNA onward. Git for everything.
FreeSpaced repetition for facts; daily subnetting practice until answers take under 15 seconds.
Free