In the interest of fairness, since I recently blogged about RADIUS authentication, I thought it would be a good idea to talk about TACACS+ as well. You will find that the configuration steps are quite similar, but the resulting functionality with TACACS+ exceeds the capabilities offered by RADIUS. The objective of this blog is not … Continue reading How to add TACACS+ to your Cisco logins
It has been a long time since I have thought about aaa new-model as a Cisco configuration, mainly because it is not in the CCNA Routing and Switching official curriculum. However, once you attain your certification and become gainfully employed as a network admin, you will likely be exposed to enterprise networks which employ this … Continue reading What does aaa new-model do to your Cisco logins?
For those of you who are interested in investigating Cisco’s VIRL product, I recently posted a blog to show how to create a very simple network topology. Today’s blog will continue where that one left off. I recommend performing, or at least reviewing, the steps in the previous blog so that today’s steps make sense. … Continue reading How to interact with a simple network topology built using Cisco’s VIRL
During a recent CompTIA A+ class several students asked about examples they might use to prepare for supporting helpdesk calls requesting assistance with Wireless Access Point (WAP) configuration. I have long wanted to set up a WAP configuration lab for our A+ courses. CompTIA A+ objectives don’t require an equivalent level of detailed knowledge, and … Continue reading Wireless Access Point (WAP) Support
Video Transcription: By Mark Jacob Cisco CCNA and CompTIA Network + Instructor Complete Series: Part 1 – Connect Your GNS3 Environment to VM VirtualBox Part 2 – Connect GNS3 to a Valid External Host in Windows 8 Part 3 – Connect your Virtual Machine in GNS3 to the Internet using Windows 8 In a … Continue reading How to Connect GNS3 to a Valid External Host in Windows 8
This topic is of interest to readers who are desiring their Network Plus certification, or those who just like to tinker with network settings (in a safe and approved environment) and observe the results. In this blog, I will delve into configuring your Linux box as a DHCP server, and then I will show a … Continue reading How to Make your Linux Box a DHCP Server
If you are reaching for your CCNA Routing and Switching certification, you probably already know that configuring NAT is on the list of stuff to know. In the CCNA world, this is accomplished using dynamic NAT, or NAT pools, as one solution, or Port Address Translation (PAT) for the other solution. Static NAT is mentioned … Continue reading A Cisco solution that’s perfectly NAT-ural
If you were to ask a number of networking professionals how routers make forwarding decisions, you might hear one answer far more than any other – Administrative Distance. In simplest terms, Administrative Distance (AD) is a ranking of believability. That is, if I am a router with more than one routing protocol running, to whom … Continue reading To Cisco Routers, This Concept Is Number One!
While I have posted a couple of blogs regarding spanning-tree, the Layer 2 loop prevention mechanism that runs on Cisco switches, I wanted to post one with a few more switches and a bit more detail on the step-by-step process. Follow the steps as we proceed from a blank scenario to one in which all … Continue reading Spanning Tree – the Roots Go Deeper!
As I promised last time, I will be providing more updates regarding the differences between the previous CCNA track and the new CCNA Routing and Switching track announced by Cisco on March 26th. One of the major differences is that the revised track will include lecture and lab on the topic of Etherchannel, or port … Continue reading Changes to the ICND1 Curriculum from Cisco! Etherchannel Port Aggregation