title: Using scapy with wifi
body: <p>i've tried to send packet using scapy while connected to wifi, and i got an error about "dnet.pyx". But when i connect to wired connection, it worked.
  I've searched a lot on the internet about this problem, but there wasn't any answer for this.
  Is there a problem with scapy and wifi? Or is there something wrong with my computer/scapy?</p>
  
  <p>edit:</p>
  
  <pre><code>send(IP(dst="204.11.192.171")/UDP(dport=5070)/"hello world")
  </code></pre>
  
  <p>with wifi, the error message was:</p>
  
  <pre><code>Traceback (most recent call last):
  File "C:/Users/Tamir/PycharmProjects/SIP/main.py", line 10, in &lt;module&gt;
  send(IP(dst="204.11.192.171")/UDP(dport=5070)/"hello world")
  File "C:\Python27\lib\site-packages\scapy_real-2.2.0_dev-py2.7.egg\scapy\sendrecv.py", line 251, in send
  __gen_send(conf.L3socket(*args, **kargs), x, inter=inter, loop=loop, count=count,verbose=verbose, realtime=realtime)
  File "C:\Python27\lib\site-packages\scapy_real-2.2.0_dev-py2.7.egg\scapy\sendrecv.py", line 234, in __gen_send
  s.send(p)
  File "C:\Python27\lib\site-packages\scapy_real-2.2.0_dev-py2.7.egg\scapy\arch\pcapdnet.py", line 237, in send
  ifs = dnet.eth(iff)
  File "dnet.pyx", line 112, in dnet.eth.__init__ (./dnet.c:1764)
  OSError: No such file or directory
  </code></pre>
  
  <p>with wired connection there was no error</p>