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Beginner in networking or professional? We offer Cisco lessons for all levels. If you have never worked in IT before then you will enjoy the CCNA lessons while experts will love the CCIE lessons. My lessons will help you to prepare for popular certifications like:

Cisco CCNA Routing & Switching

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Or any of our other topics

Subnetting
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What our Members are Saying

  • December 12, 2022
    Ali Shah Arman
    Ali Shah Arman
    Information Systems Officer
    The Best Online Reference

    NetworkLessons.com is the best online reference for those working in the network field. It offers on-demand and self-paced topics that are perfect for busy employed people. Core network, Cisco routing, switching and other network-related topics are explained very well, and straight to the point. It is the best reference for those who have a fundamental knowledge of networking and need to refresh their knowledge and/or are preparing for a Cisco exam.

  • November 12, 2023
    Ömer Yavuz
    Ömer Yavuz
    Network/Security Engineer
    Ultimate Networking Resource

    If you have experience in networking for some time and want to have accurate tips and tricks about core concepts, the ultimate first stop is NetworkLessons.com. It has very clean explanations.

  • October 9, 2022
    Pietro Manicioto
    Pietro Manicioto
    Network Engineer
    Help in a Pinch

    I have learned a lot from NetworkLessons.com. The topics are covered with enough detail to help in a pinch without overwhelming me. I can quickly search for what I need. Unlike other learning sites, NetworkLessons.com doesn’t rush through the material, and includes both videos and text versions. It’s been great for understanding why something was done a certain way at work and making alterations as needed. I always find what I’m looking for, and that’s why I keep coming back.

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Stop Struggling & Start Learning

“My name is Rene Molenaar, and I am here to help you to achieve your goals. Do you want to upgrade your skills? Want to start a career in networking? Become a CCIE in Enterprise Infrastructure? Let me help you! After teaching Cisco classroom courses for several years I decided to share my knowledge online on NetworkLessons.com.”

Rene Molenaar CCIE #41726, Founder of NetworkLessons.com
(and primary course author)

Rene Molenaar Posing Right