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Complex networking topics explained in the most simple way possible…
Including Cisco CCNA, CCNP and CCIE Routing & Switching.

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562 lessons and I am constantly adding new lessons, videos and reference material. Everything is explained in the most simple form possible.

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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:


What our Members are Saying

Viktor Borisov

Place of Excellent Knowledge

NetworkLessons.com is a really great place for learning networking. Complex topics are explained in a simple way with lots of examples, packet captures and figures. You can easily recreate the scenarios via any network simulation and practice after every lesson.

Viktor Borisov Communications Engineer NetworkLessons.com March 15, 2017

Jeremi Richardson

A Godsend!

NetworkLessons.com explains everything in such an understandable way. For years I've been reading Cisco Press books and websites over and over to grasp concepts, but on Networklessons.com, I grasp concepts immediately and retain them better. Thank you!

Jeremi Richardson Network Engineer NetworkLessons.com June 7, 2017

Jeffrey Deal

Clear and Detailed Lessons

I really enjoy learning about routing protocols. Rene breaks down each routing technology, and explains how to troubleshoot them. He builds small topologies that allow you to learn and implement. As a CCIE candidate, NetworkLessons.com has been a huge help towards me preparing for my CCIE R&S Certification, as well as reaffirming technologies learned in my CCNA/CCNP studies. I would highly recommend NetworkLessons.com to anyone looking to further their understanding of network technologies.

Jeffrey Deal Senior Network Engineer NetworkLessons.com July 15, 2016

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“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 Routing & Switching? 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)