Introduction

The TCP/IP[2] model is the fundamental architecture used for communication on the Internet and most modern networks. It defines how data is transmitted between devices and how different protocols interact to ensure reliable communication.[1]

As seen in the previous chapter, TCP/IP[2] model is organized into four layers:

  • Application layer

  • Transport layer

  • Internet layer

  • Network access layer

Its main protocols are:

TCP/IP layers and main protocols