The calculation of the TCP control amount explained in more than 128 words
The TCP (checksum) control sum, intended for package integrity control, uses a pseudo-header that consists of the source IP of origin, destination, reserved file name (identified by 0000,0000), protocol (x06) and the length of the header Tcp. Consider the TCP package: IP source 192.168.0.1 IP destination 192.168.0.2 Reserved/TCP Control 0 / 6 Padding/Lenght 0 / …
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