sniffer.py

# -*- coding: utf-8 -*-

import socket
import os

# IP addres of the host to listen
host = '192.168.91.134'

# creat raw socket and bind to public interface
if os.name == "nt":
    socket_protocol = socket.IPPROTO_IP
else:
    socket_protocol = socket.IPPROTO_ICMP
    
sniffer = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket_protocol)

sniffer.bind((host, 0))

# specify to include ip header in result of capture
sniffer.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)

# enable promise cas mode with ioctl if windows
if os.name == "nt":
    sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_ON)
    
# read one packet
print sniffer.recvfrom(65565)

# disable promisecasmode if windows
if os.name == "nt":
    sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_OFF)