I love new security testing tools. There is nothing quite like finding some magical bits of code allowing you to use and abuse protocols in unique and unnatural ways. I was introduced to Loki at ...

Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...

I'm dealing with layer 3 switching for the first time, as part of moving into a new office. A larger organization has given us some space in their building and is giving us access to their corporate ...

Your SNMP-based management system discovers failed routers, physical interfaces and circuits. But, if you’re running an IP network, what about snafus in the control plane that are not so easy to ...

Explains the three layers critical to network design: Access, Distribution, and Core Anyone involved in networking and/or telecommunications should be somewhat familiar with the use of layers. Many ...