Getting a handle on the invisible part of your network—the protocols that are in use—can be of enormous value in helping you detect problems. So far, we've talked about the tangibles of your ...

Open communication protocolsModbus TCP/IP is an open industrial protocol based on standard Ethernet. Modbus provides connectivity to programmable automation controllers (PACs), PLCs, and legacy ...

We received this question from a student at a recent Profinet One-Day Training Class. I found it particularly prescient given the latest discussions going on around Industry 4.0. The question is ...

Although the Internet of Things (IoT) introduces remarkable ways to collect, manage, and apply data, it's also a huge vector for cyberattacks. One of the biggest vulnerabilities lies in embedded ...

Thread is a simplified, IPv6-based mesh networking protocol developed for connecting products around the home to each other, to the internet, and to the cloud. Thread is simple to install, highly ...

In an ideal Internet all packets would be treated as equal by the Internet Service Providers (ISP) and backbone operators who transport them across cyberspace. Unfortunately, this is not always the ...

Often we discuss errored packets that are dropped without understanding the underlying techniques that determine why the packets are discarded. There are checks for errors at several protocol layers.

TCP/IP, the communication protocol computers must follow to communicate with each other over the Internet, can be disabled in Windows relatively easily. This action will disable your Internet ...