同时发送几个数据包并得到答复

sending few packet at the same time and get answer

我正在尝试发送 4 个数据包并为每个数据包获取一个答案(就像 CMD 上的 "ping" 工具),我该怎么做? 数据包:

packet = IP(dst = "www.google.com")/ICMP()/"hi"

我知道我可以这样发送:send(packet, count=4)但是我需要所有的答案。 sr1(packet) 只发送了一次 sr() 我不知道如何使用它发送 4 个数据包并得到答复...

我试着看这里 http://www.secdev.org/projects/scapy/files/scapydoc.pdf 第 35 页

非常感谢!!!

首先,sr() 用于发送数据包和接收应答,而 sr1() 是一种变体,仅 returns 发送数据包的第一个应答。您可以找到更多信息 here,当然也可以从 python 或 scapy 的交互式控制台键入 help(sr1)(或任何其他函数),您可以查看有关该函数的详细信息:

sr1(x, filter=None, iface=None, nofilter=0, *args, **kargs)
    Send packets at layer 3 and return only the first answer
    nofilter: put 1 to avoid use of bpf filters
    retry:    if positive, how many times to resend unanswered packets
              if negative, how many times to retry when no more packets are answered
    timeout:  how much time to wait after the last packet has been sent
    verbose:  set verbosity level
    multi:    whether to accept multiple answers for the same stimulus
    filter:   provide a BPF filter
    iface:    listen answers only on the given interface

现在连续发送这些数据包 4 次并为每个数据包获得一个答案,您可以简单地尝试:

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

from scapy.all import *

packet = IP(dst = "www.google.com")/ICMP()/"hi"
for _ in range(4):
    answer = sr1(packet)
    answer.show()