It's been a crazy couple of months recently. With what began as a temporary lockdown & mandatory work-from-home has now become a question of "Will we ever return to the office"? Luckily I have a decent home office setup, as my job is already primarily work from home.…
I ran into an interesting issue recently, which was caused by use of the switchport protected command…. So I use a pair of Cisco 2960-8TC-L switches at home, for both my home network and lab. A few months back I ran a bunch of ethernet cabling within my house,…
Back a few months ago, I wrote a bit about why it is important to have a good design for IP addressing schemes (part 1 and part 2). As a brief refresher, the situation I found myself in was an environment where practically everything was assigned a 10.x.x.…
“The network is slow” – Sound like something you’ve heard before? What does ‘slow’ mean anyway? And is it different from yesterday? Sometimes tracking down network ‘slowness’ can be pretty difficult, especially when you don’t have a good baseline of…
Port Security. Always seems like one of those things covered in Cisco exams, yet how many businesses actually use it? For those that aren’t implementing it, should they? Or is it too much of a headache? So the concept of port security is fairly simple – We want…
I really want to take a moment to talk about how wonderful VRFs/firewall contexts really are. Both technologies essentially allow a network administrator to spin up a virtualized, isolated instance of a network device. I’ll be honest and say that I hadn’t had the chance…
There are quite a few things that you don’t realize how great they are until you don’t have them anymore. For me, one of those things was standard guidelines for device configurations. At my last job, documented standards were extremely important – we had them for…