Upload files to 'server'

server/first_packet.py

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+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))