Get A Lab And Be Error Free!
Today I’m going to discuss a misunderstanding I’ve encountered in many companies who are striving to reduce outages caused by network changes that go wrong. In a nutshell, here is is the fallacy in question: […]
Networking
Cisco AnyConnect VPN and Microsoft ActiveX Killbits
Last night I went to shut down my Windows 7 64-bit computer and agreed to the “Install updates and shut down” option. When my system came back up I noticed that I could no longer […]
My Favorite Resume Puffs
Have you ever seen – or perhaps even submitted – a resume (or “CV” for some European friends) where certain parts of it were only there either to ensure that you sorted higher in the […]
GNS3 – Running A Single Router
GNS3 GNS3 really is a great tool, and I use it quite often to simulate routed networks. I also use it at times just to quickly validate syntax (assuming I have the right IOS versions […]
Working With Numbered Access-Lists
Back in the day, I didn’t have any white hairs, you could get a bag of potato chips for a quarter, kids didn’t behave badly, and numbered access-lists were all you had to work with […]
Those Pesky Active BGP Sessions
You’re troubleshooting a routing problem; you check BGP and the neighbor shows as active. Great, let’s move on and look somewhere else. Right now a good proportion of you should be shouting at your screen […]