From the course: Wireshark Essential Training

Understanding the TCP-IP suite - Wireshark Tutorial

From the course: Wireshark Essential Training

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Understanding the TCP-IP suite

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- [Instructor] The TCP/IP suite or internet suite is a set of protocols that allows us to communicate and exchange data on the network. The suite defines how data is packetized, addressed, transmitted, and routed. The key protocols are TCP, UDP, IP, and ICMP. We see the TCP/IP suite residing here at the network and transport layer. At the network layer, the main players are IP and ICMP. IP or the Internet Protocol is the network layer protocol used for routing the data from the source to the destination. IP is responsible for addressing and does not have any error reporting functions. For that, we use ICMP. This is used in addition to the Internet Protocol to carry error, routing and control messages, however, it does not exchange any data between systems. The transport layer provides data transport by using either TCP, which is a connection-oriented protocol or UDP, which is connectionless. You will hear that other protocols ride on top of the TCP/IP suite, and those would be protocols such as those in the application layer, HTTP, FTP, or SMTP. And we need to set, in our bindings, the ability to use TCP/IP, as pictured here in this graphic. The TCP/IP suite or internet suite is a set of protocols that allows us to communicate and exchange data on the network.

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