#!/usr/bin/env python
import scapy.all as scapy
scapy.conf.verb=0
import os
import socket

print "PRIMER PASO"
p=scapy.IP(dst="192.168.1.4")/scapy.TCP(flags="SA")
ans,unans = scapy.sr(p)
for s,r in ans:
	f=r[scapy.TCP].seq
print +f

print "SEGUNDO PASO"
q=scapy.IP(src="192.168.1.4",dst="192.168.1.1")/scapy.TCP(dport=[80],flags="S")
scapy.send(q)

print "TERCER PASO"
ans,unans = scapy.sr(p)
for s,r in ans:
	e=r[scapy.TCP].seq
print +e

print "PRUEBA DE PID"
if e > f:
     print "AUMENTO EL CONTADOR"
else:
     print "NO AUMENTO EL CONTADOR"