Build real skills.
Command the network.
Hands-on Cisco networking exercises, interactive command-line practice, and guided troubleshooting—all from your browser. No tuition. No expensive lab equipment required for the demo.
MAG212-R1# show ip ospf neighbor Neighbor ID State Interface 10.255.255.2 FULL/DR Gi0/0 10.255.255.3 FULL/BDR Gi0/1 MAG212-R1# show ip route ospf O 10.20.10.0/24 [110/20] via 10.255.0.2 O 10.20.20.0/24 [110/30] via 10.255.0.6 MAG212-R1# _
Choose your certification path
Start with the fundamentals, then progress into enterprise routing, security, and automation.
Free lessons and certification quizzes
Read a focused technical lesson, mark it complete, and test your knowledge. These are independently written practice questions, not official Cisco exam questions.
Test your network knowledge
Four practice quizzes with immediate explanations and saved progress.
Practice on your own computer — free
30 original CCNA and CCNP exercises. Search and filter the downloadable library. Download a CML YAML and study guide; import it into your own licensed Cisco Modeling Labs installation. These files do not include Cisco operating systems.
Download student workbook (Markdown) Download lab index (CSV)
CML Free supports up to five Cisco nodes. Each exercise here stays within that limit. These are original training materials, not official Cisco exams; verify compatibility with your installed CML version.
Assignments and feedback
Complete instructor-created activities using the demo lab workbench. Instructors review submissions and score them manually.
Real network thinking
Routing, switching, security and enterprise troubleshooting.
AI-style tutor
Guided hints now; optional model integration later.
Isolated practice
Mock labs by default, safe before a CML license is connected.
Launch a lab in your browser
For now, labs are simulations for learning the workflow. Real CML devices remain offline until licensing and security validation.
Welcome back
Sign in to launch the interactive lab demonstrations.
Hands-on lab catalog
Select a scenario, run Cisco-style commands, and validate what you've learned.
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