20 bytes (160 bits, 5 Words)Options can extends 60 bytes header sizeTCP Segment HeadersTCP Packet Header PortTCP Packet Header ACK NumberTCP Packet Header Sequence NumberTCP Packet Header Data OffsetTCP Packet Header ReversedTCP Packet Header FlagTCP Packet Header Window SizeTCP Packet Header ChecksumTCP Packet Header Urgent PointerTCP Packet Header Option evan-moon.github.iohttps://evan-moon.github.io/2019/11/10/header-of-tcp/
