TCP basics
TCP basics¶
TCP is one of the key protocols in today’s Internet. A TCP connection always starts with a three-way handshake. The exercises below should help you to improve your understandings of this first phase of a TCP connection.
Once the connection is established, the client and the server can exchange data and acknowledgments.
A connection ends with the transmission of segments that include the FIN flag that marks the end of the data transfer.
TCP can be extended by using options that are negotiated during the three-way handshake.
With your knowledge of TCP, you should now be able to reorder all the segments exchanged over a TCP connection.
Footnotes