Ethernet is a layer 2 data link protocol that is widely used with the TCP/IP protocol, which resides at layers 3 and 4. To understand network communications, it is essential to learn about the ...

Transmission Control Protocol (TCP) is the basic communication protocol of the Internet as well as many private networks throughout the world. Along with User Data Protocol (UDP), TCP represents the ...

Today the Internet turns 30 years old. If you’re younger (and you probably are) raise a glass to your weird, omnipresent uncle. If you’re older, shake your fist and tell the Internet to get off your ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

Terms can sometimes play tricks on the mind. Take EtherNet/IP, for example. Many people will read “IP” as internet protocol and think that EtherNet/IP refers to plain old, standard industrial Ethernet ...

Over the last several years, TCP/IP has gone from being the protocol that only geeks use, to a universal protocol that everyone uses, thanks to the widespread use of the Internet. TCP/IP has been ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. As a younger person, I thought I knew everything — especially about what appeared to be simple ...

TCP is the de-facto transport protocol on the Internet. It makes sure to send, and receive information across the internet for every type of content. It’s everywhere. When you load a website or send ...

The numeric identification of the upper layer protocol that an IP packet should be sent to. The number is stored in the header that is prefixed to an IP packet. Note that the IP protocol number is not ...

Some Windows users are skeptical about two protocols, NetBIOS over TCP/IP and LLMNR. These protocols are responsible for the compatibility of your network with the legacy Windows version. However, ...