From: Eleanor McHugh <eleanor@...>
Date: 2007-03-30T07:02:51+09:00
Subject: Re: Pcaplet 'lookupdev': no suitable device found

On 29 Mar 2007, at 20:33, Mike Cook wrote:
> I'm trying to prototype using Ruby for a networking class that I'm
> taking, and I need to be able to use libpcap.  I found 'pcaplet' and
> have been trying to get set up with that, but when trying to  
> execute the
> following line:
>
> $network = Pcaplet.new('-s 1500')
>
> I get the following error:
>
> /usr/lib/ruby/1.8/pcaplet.rb:51:in 'lookupdev': no suitable device  
> found
> (Pcap::PcapError)
>     from /usr/lib/ruby/1.8/pcaplet.rb:51:in 'initialize'
>     from test.rb:3

You need to specify the interface to listen on. For example:

	en0_listener = Pcaplet.new('-s 1500 -i en0')

which on my Mac will listen on en0.


Ellie

Eleanor McHugh
Games With Brains
----
raise ArgumentError unless @reality.responds_to? :reason