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Complex networking topics explained in the simplest way possible…
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809 lessons and I am constantly adding new lessons, videos and reference material. Everything is explained in the simplest way 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:

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Subnetting
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GRE
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What our Members are Saying

November 13, 2024
Jeremy Blank
Network Engineer
Gift for Explaining
Huge shoutout to NetworkLessons.com! Before I found this site, learning networking felt confusing. They have a gift for explaining complex topics in a simple, understandable way that just clicks for me. It's clear they are not just knowledgeable, but they genuinely care about helping people learn. I'm thrilled to be a member, and I can't thank them enough for helping guide me in this journey.
December 17, 2024
Murat Bilgin
Senior Systems Analyst
Clear and Concise
Preparing for my ENRSI, I am a visual learner and learn best from examples. I like that I can follow along using CML/GNS3 to understand the basics and mechanics, then try to build a more difficult lab. Everything so far has been clear and concise.
March 15, 2026
Mohamed Ramadan
ITSM Team Lead
Plain English Networking
NetworkLessons.com provides very constructive courses. Their lessons are easy to understand, especially the labs. It really is networking in plain English, just like they always say.

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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)