hi , i try to create my own TCP paquets with php socket function with differents flags like (SYN, RST, ACK...) , i found an exemple to do ICMP paquet with socket_create(AF_INET, SOCK_RAW, 1) ex : $type= "\x08"; $code= "\x00"; $checksum= "\x00\x00"; $identifier = "\x00\x00"; $seqNumber = "\x00\x00"; How can i use socket_create(AF_INET, SOCK_RAW, 6) to create my paquets. thanks