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Complex networking topics explained in the simplest way possible…
Including Cisco CCNA, CCNP and CCIE Enterprise Infrastructure.

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812 lessons and I am constantly adding new lessons, videos and reference material. Everything is explained in the simplest way possible.

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Do you still have questions after viewing some of the lessons? We have a community forum where we help out members with answers.

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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:

Or any of our other topics

Subnetting
Switching
Spanning-Tree
Frame-Relay

RIP
EIGRP
OSPF
BGP

Multicast
IPv6
QoS
MPLS

Security
IP Routing
Network Services
Linux

GRE
IOS
DMVPN
PIM

NAT
ACL
VPN
IPSec

What our Members are Saying

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.
December 21, 2024
Collins Ekome Ebah
Network Admin
Highly Recommended
NetworkLessons.com has proven to be an exceptional platform for my CCNA and CCNP Enterprise studies, offering user-friendly resources that accommodate various learning styles while ensuring effective concept comprehension. The platform's supportive community and end-of-lesson assistance create an engaging learning environment, making it a highly recommended resource for anyone seeking to enhance their networking knowledge. Thanks!
January 15, 2025
Win Zaw Latt
IT Executive
Effective Learning Journey
NetworkLessons.com is highly knowledgeable and provides clear explanations for me. The lesson journey offered by them makes the learning experience not only enjoyable but also highly effective, setting me up for success in my career growth and advancement now and in the future.

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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)