The following index of articles all cover topics within the CCNA (Cisco Certified Network Associate) curriculum. If you are studying for the CCNA exam (200-301), you’ll definitely want to read each of these articles. This… Read More »CCNA — Index
I’ve just completed Part 2 of the VLSM and FLSM extensions of the Subnetting Mastery video series. The series now, more than ever, covers everything anyone would ever need to know about Subnetting. The series… Read More »FLSM and VLSM – Part 2
After many requests to extend the Subnetting Mastery video series, I am adding an appendix which will cover Fixed Length Subnet Masks (FLSM) and Variable Length Subnet Masks (VLSM). This is Part 1, which teaches… Read More »FLSM and VLSM – Part 1
The terms Voice VLAN or Auxiliary VLAN typically mean the same thing: They are a feature which allows an access port — which normally only accepts untagged traffic for a single VLAN — to also… Read More »Voice VLAN – Auxiliary VLAN
In the early days of Networking, a computer network was meant to carry only data traffic. As time went on, VOIP, or Voice-Over-IP technologies were invented, computer networks had to be designed to also carry… Read More »Converged Network
The Native VLAN is an often confused concept, though it needn’t be. This video will explain what the Native VLAN is and how it affects traffic on a wire. Summary An Access port (or “untagged… Read More »What is the Native VLAN?
Lately I’ve been working on a Subnetting Mastery video series. The goal is take someone with little to no exposure to subnetting and make them a subnetting pro. I’m happy to announce that the video… Read More »Subnetting Mastery
In this article, we will illustrate the Cisco NAT configuration on IOS Routers. This is a follow up article to the Network Address Translation article series which thoroughly covered the operation of NAT and answers the questions… Read More »Cisco NAT Configuration – IOS Router