We often say TCPIP, it is really mainly IP protocol and TCP protocol, TCP protocol depends on IP layer protocol, in fact, it is mainly IP layer and TCP layer. It makes sense for them to call the entire protocol suite TCP/IP. Indeed, it is mainly the two protocol layers IP and TCP.
So don’t see other people’s recruitment requirements saying familiarity with TCPIP. You think this is more complicated, but it’s not.
The following is taken from "LwIP Application Development Practical Guide Based on STM32"
