TCP: ----- TCP Header ----- TCP: TCP: Source port = 1074 TCP: Destination port = 23 (TELNET) TCP: Sequence number = 71000 TCP: Acknowledgement number = 806176755 TCP: Data offset = 20 bytes TCP: Flags = 0x10 TCP: ..0. .... = No urgent pointer TCP: ...1 .... = Acknowledgement TCP: .... 0... = No push TCP: .... .0.. = No reset TCP: .... ..0. = No Syn TCP: .... ...0 = No Fin TCP: Window = 7306 TCP: Checksum = 0xeae3 TCP: Urgent pointer = 0 TCP: No options TCP:
Dans l'en-tête TCP, il ne reste plus que le service demandé à la machine destination, la taille du paquet réel, ainsi que d'autres informations.