#!/usr/bin/env python

 #encoding:utf-8

 from threading import Thread

 import subprocess

 from Queue import Queue  

 num_threads=10

 ips = []

 for a in range(256):

     for b in range(256):

         ip = "10.1."+str(a)+"."+str(b)

         ips.append(ip)

 q = Queue()

 def pingme(i,queue):

     while True:

         ip=queue.get()

         ret=subprocess.call('ping -c 1 %s' % ip,shell=True,stdout=open('/dev/null','w'),stderr=subprocess.STDOUT)

         if ret==0:

             print '\033[31m%s UP\033[0m' %ip

         elif ret==1:

             print '%s is down...'%ip

         queue.task_done()  

 #start num_threads threads

 for i in range(num_threads):

     t=Thread(target=pingme,args=(i,q))

     t.setDaemon(True)

     t.start()

 for ip in ips:

     q.put(ip)

 q.join();

 print 'Done'