python使用scapy模块实现ARP扫描的过程

def scapy_arp_one(ip_address, queue=None):
 Packet = Ether(dst='FF:FF:FF:FF:FF:FF') / ARP(op=1, hwdst='00:00:00:00:00:00:', pdst=ip_address)

arp = srp(Packet, timeout=0.2, verbose=False)

try:
  reply_list = arp[0].res
  if queue is None:
   return reply_list[0][1].getlayer(ARP).fields['hwsrc']
  else:
   queue.out((ip_address, reply_list[0][1].getlayer(ARP).fields['hwsrc']))
 except:
  return

#!/usr/bin/env python3
# -*- coding:utf-8 -*-
# Author:Ameng, jlx-love.com

from scapy.all import *
import sys


def scapy_arp_one(ip_address, queue=None):
 Packet = Ether(dst='FF:FF:FF:FF:FF:FF') / ARP(op=1, hwdst='00:00:00:00:00:00:', pdst=ip_address)
 arp = srp(Packet, timeout=0.2, verbose=False)
 try:
  reply_list = arp[0].res
  if queue is None:
   return reply_list[0][1].getlayer(ARP).fields['hwsrc']
  else:
   queue.out((ip_address, reply_list[0][1].getlayer(ARP).fields['hwsrc']))
 except:
  return

if __name__ == '__main__':
 scapy_arp_one(sys.argv[1])

#!/usr/bin/env python3
# -*- coding:utf-8 -*-
# Author:Ameng, jlx-love.com

import time
from scapy.all import *
import ipaddress
import optparse


def scapy_arp_scan(network, ifname):
 net = ipaddress.ip_network(network)
 ip_addr = []
 for ip in net:
  ip = str(ip)
  ip_addr.append(ip)
 time.sleep(1)
 Packet = Ether(dst='FF:FF:FF:FF:FF:FF')/ARP(op=1, hwdst='00:00:00:00:00:00', pdst=ip_addr)
 arp = srp(Packet, iface = ifname, timeout = 1, verbose = False)
 arp_list = arp[0].res
 IP_MAC_LIST = []
 for n in range(len(arp_list)):  
  IP = arp_list[n][1][1].fields['psrc']
  MAC = arp_list[n][1][1].fields['hwsrc']
  IP_MAC = [IP, MAC]
  IP_MAC_LIST.append(IP_MAC)
 return IP_MAC_LIST


if __name__ == '__main__':
 t1 = time.time()
 parser = optparse.OptionParser('用法：\n python3 scapy_arp_scan.py --network 扫描网段 --ifname 网卡名称')
 parser.add_option('--network', dest = 'network', type = 'string', help = '扫描网段')
 parser.add_option('--ifname', dest = 'ifname', type = 'string', help = '网卡名称')
 (options, args) = parser.parse_args()
 network = options.network
 ifname = options.ifname
 if network == None or ifname == None:
	 print(parser.usage)
 else:
  active_ip_mac = scapy_arp_scan(network, ifname)
  print('存活的IP地址及对应MAC：')
  for ip, mac in active_ip_mac:
   print(ip, mac)
 t2 = time.time()
 print('所用时间为：{}'.format(int(t2 - t1)))