#!/usr/bin/env python
import socket, sys, array

# Create an IP raw socket
s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)

# bind it to an interface address (e.g. tun0 or eth0)
s.bind(("10.0.5.1", 0))

# Tell the socket that the IP header is already included
s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)

# ICMP datagram
# source = 10.0.5.1
# dest = 74.125.228.6 (google.com)
hex_string = '45000054000040004001FD240A0005014A7DE4060800748909900001B1D28E520000000072ED080000000000101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F3031323334353637';

# Convert the hex string to byte array
result= array.array('B', hex_string.decode("hex"))

# Send it out, not sure why the IP address needs to be repeated here. However,
# port number is ignored.
n_send = s.sendto(result, ('74.125.228.6',0));

print('sent %d bytes' % n_send);

# More example:
# http://www.binarytides.com/python-syn-flood-program-raw-sockets-linux/