Question

我正在尝试发送 802.11 探测请求并从中接收探测响应。但结果并不好。

这是我的发送框架部分，我在python中使用Scapy：

  class Scapy80211(): 
    def  __init__(self,intf='wlan0',ssid='test',\
          source='00:00:de:ad:be:ef',\
          bssid='00:11:22:33:44:55',srcip='10.10.10.10'):
    self.rates = "\x03\x12\x96\x18\x24\x30\x48\x60"
    self.ssid    = ssid
    self.source  = source
    self.srcip   = srcip
    self.bssid   = bssid
    self.intf    = intf
    self.intfmon = intf + 'mon'

    def ProbeReq(self,count=10,ssid='',dst='ff:ff:ff:ff:ff:ff', fc=0):
      if not ssid: ssid=self.ssid
      param = Dot11ProbeReq()
      essid = Dot11Elt(ID='SSID',info=ssid)
      rates  = Dot11Elt(ID='Rates',info=self.rates)
      dsset = Dot11Elt(ID='DSset',info='\x01')
      pkt = RadioTap()\
        /Dot11(type=0,subtype=4,FCfield=fc,addr1=dst,addr2=self.source,addr3=self.bssid)\
        /param/essid/rates/dsset

      print '[*] 802.11 Probe Request: SSID=[%s], count=%d' % (ssid,count)
      try:
        sendp(pkt,count=count,inter=0.1,verbose=1)
      except:
        raise

ssid = 'aa' #This is the AP I want to interact with
sdot11 = Scapy80211(intf='mon0')
sdot11.ProbeReq(ssid=ssid)
sniff(count=10, timeout=5, prn=PacketHandler, filter="type mgt subtype probe-resp")

我运行代码20次，有一次我可以得到结果。

此外，结果也有点奇怪，当我收到回复时，我当时经常收到很多。

那么，任何人都可以帮助我吗？你通常如何做收发工作？

我已将代码更改为srp()。我删除了sniff（）语句并用srp（）替换sendp（）。这是我的结果，我对它很困惑。

[*] 802.11 Probe Request: SSID=[aa], count=10
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.

Received 0 packets, got 0 answers, remaining 1 packets
[*] 802.11 Probe Request: SSID=[aa], count=10
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.
Begin emission:
Finished to send 1 packets.

Received 12 packets, got 0 answers, remaining 1 packets

我想从 aa 接收探测响应帧，我发送探测请求的帧。

所以结果没有答案？而且我不确定是否与我没有填写正确的参数如SSID，source，bssid相关。我应该将目的地从“ff：ff：ff：ff：ff：ff”更改为 aa 的MAC地址吗？

Answer 1

除非我错了，否则您正在发送探测器，然后嗅探响应。如果答案到了，很可能会同时到达。

你应该使用srp()函数来完成发送帧和匹配答案的工作。

Answer 2

试试你的代码：
如果不是 ssid：ssid = self.ssid 而不是：
if ssid != "":ssid = self.ssid

希望对你有帮助！

Scapy发送探测请求并接收探测响应

2 个答案: