Today was kind of a tough day. I had my second telephone interview in a week and I got the feeling that it did not go quite as well as I had hoped. I was expecting a technical interview and it was an HR/behavioral interview. I really felt like I flubbed it up completely and I was particularly interested in the job too. Well, we will see what happens. The interview left me feeling depleted and I did not want to make the drive to the college campus for Cisco stuff.
Well, I am so glad that I made the trip to campus because some fellow students were struggling with the concept of network address translation on a router. This is a concept that I know so well that I can teach it so we set up a lab in Packet Tracer to demonstrate the most common forms of NAT: dynamic and static. It felt really good for these guys to grasp it completely. Two of them said that they did not understand it until I explained it to them. They said my explanation was better than the instructor’s and Cisco’s. I really needed the positive reinforcement.
I was feeling pretty much useless until I could teach a concept inside of 30 minutes and have everyone understand it. God I love IT when I can teach it. I honestly love technology and the internet when I can teach it to people and watch their eyes light up in understanding. There is no feeling quite like the feeling of pride that you get when your students master something they’ve struggled with.
It’s also bad when Cisco cannot even explain its own routing/switching technologies clearly. They do a seriously poor job of explaining network address translation. It is not this huge, elephantine concept that they make it out to be. NAT is actually a simple concept for conserving global IPv4 addresses and allowing computers on a LAN to share one (or more) global IPv4 address(es). There is nothing really complex or even mystical about it.
I hope these guys will tell the folks at the program that I am a good and decent guy and I might have what it takes to be an adjunct teacher. Well, I am definitely feeling a whole lot better. There is a lot to be said for helping other people to help get you out of a funk.