Problem: scapy reads the HTTP Request packet, modify the head Host attribute, if the modified Host is the same as the length of the original, using wireshark opened or the Request packet, but if you change the length of the different couldn't identify the wireshark, PDU is a TCP packet directly,
Speculation: different length changes and view the checksum size is the same as before and after the change, should be check and does not change,

Is there anyone know this should be how to deal with great god,

CodePudding user response:

Data changes need to calculate the TCP checksum, TCP is a must