python局域网ip扫描示例分享

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复制代码代码如下:

#!/usr/bin/python
# -*- coding: utf-8 -*-

from scapy.all import *
from time import ctime,sleep
import threading
TIMEOUT = 4
conf.verb=0

def pro(cc,handle):
dst = "192.168.1." + str(cc)
packet = IP(dst=dst, ttl=20)/ICMP()
reply = sr1(packet, timeout=TIMEOUT)
if not (reply is None):
handle.write(reply.src+" is online"+"\n")
#print reply.src, "is online"

def main():
threads=[]
f=open('ip.log','a')
for i in range(2,254):
  t=threading.Thread(target=pro,args=(i,f))
  threads.append(t)
print "main Thread begins at ",ctime()
for t in threads :
  t.start()
for t in threads :
  t.join()
print "main Thread ends at ",ctime()

if __name__=="__main__" :
main();