import socket s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_TCP) s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1) # b converts string into byte format ip_header = b'\x45\x00\x00\x28' # Version, IHL, Type of Service | Total Length ip_header += b'\xab\xcd\x00\x00' # Identification | Flags, Fragment Offset ip_header += b'\x40\x06\xa6\xec' # TTL, Protocol | Header Checksum ip_header += b'\x0a\x0a\x0a\x02' # Source Address ip_header += b'\x0a\x0a\x0a\x01' # Destination Address tcp_header = b'\x30\x39\x00\x50' # Source Port | Destination Port tcp_header += b'\x00\x00\x00\x00' # Sequence Number tcp_header += b'\x00\x00\x00\x00' # Acknowledgement Number tcp_header += b'\x50\x02\x71\x10' # Data Offset, Reserved, Flags | Window Size tcp_header += b'\xe6\x32\x00\x00' # Checksum | Urgent Pointer packet = ip_header + tcp_header s.sendto(packet, ('10.10.10.1', 0))