Some of you, particularly those that subscribe to the blog, will have noticed a lot of posts here at the blog in mid-October 2021. I thought I’d give you a quick update on what I’m [...]

Are you comfortable matching packets with extended ACLs? How about with TCP and UDP ports in those ACLs? Here’s a 10-minute lab exercise to practice; all you need is the time and a piece of paper [...]

Placeholder text

Welcome to the last post in the CCNA Cert Guide Packet Tracer Lab series! These posts each feature one chapter from the CCNA Official Cert Guide, specifically chapters for which you can use Cisco [...]

Today’s post works through a challenging combination of topics revolving around CCNA 200-301 Cert Guide, Vol 2, Chapter 9. That chapter includes logging, NTP, and CDP/LLDP, all of which can [...]

One reason we created these Packet Tracer files to match the book examples is that PT does not always work well with a particular command or feature. You can practice the topics in the CCNA [...]

There is no excerpt because this is a protected post.

Dynamic Host Configuration Protocol (DHCP) provides a means for devices to dynamically learn and lease an IP address to use, along with learning various related IP settings. Chapter 7 of the CCNA [...]