# PacketFu troubles

**URL:** <https://www.ruby-forum.com/t/packetfu-troubles/169422>\
**Category:** Ruby\
**Created:** [June 3, 2009, 4:23pm UTC](https://www.ruby-forum.com/t/packetfu-troubles/169422 "2009-06-03T16:23:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nathanael](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/48db29/32.png) [@nathanael](https://www.ruby-forum.com/u/nathanael)\
**Post date:** [June 3, 2009, 4:23pm UTC](https://www.ruby-forum.com/t/packetfu-troubles/169422/1 "2009-06-03T16:23:57Z")

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hello,

I’ve got a lot of trouble with PacketFu (from  
[Google Code Archive - Long-term storage for Google Code Project Hosting.](http://code.google.com/p/packetfu/)).All I wanted to do was a bit of network  
sniffing but everytime I want to use packetfu I get this message:

> [@](#):
>
> irb(main):001:0\> require ‘packetfu’  
> Errno::EBADF: Bad file descriptor  
> from C:/Programme/ruby/lib/ruby/site\_ruby/1.8/packetfu/write.rb:82:in  
> `write’  
> #this happens if i call a specific file, but still the  
> irb(main):002:0\> require ‘packetfu/capture’  
> =\> true

I got Winpcap(version 4.0.2) installed and can sniff with wireshark  
without problems.

Now I’d like to know why it isn’t working and how to fix it(is this  
problem winXP specific, a common problem on windows ?)

if anyone has experienced similiar problem( and found a solution) please  
tell me

thanks in advance