from socket import * 
from struct import unpack 
import sys 
import binascii
import string

INTERFACE = "eth0"

sock = socket(AF_PACKET, SOCK_DGRAM, 0x0800) 
sock.bind((INTERFACE, 0x0800)) 
while True: 
   data = sock.recvfrom(1500, 0)[0] 
   ipHdr=unpack("!12s4s4s",data[:20])
   src=inet_ntoa(ipHdr[1])
   dst=inet_ntoa(ipHdr[2])
   print "Src: "+src+" Dst: "+dst+" Proto: "+binascii.hexlify(data[9])
   print binascii.hexlify(data[20:])
   str=""
   for i in data[20:]:
       if i in string.printable:
          str.append(i)
   print str