If I want to change the default tcpflags, such as changing syn to fin, how can I send the sequence normally? I know that the data packet can be constructed manually, but this is very troublesome. I did not see what parameters the client provided to specify tcpflags

If I want to change the default tcpflags, such as changing syn to fin, how can I send the sequence normally? I know that the data packet can be constructed manually, but this is very troublesome. I did not see what parameters the client provided to specify tcpflags
