perlquestion
boblikeperl
Does anyone have an example of reading/writing to ethernet devices for Win32 and Linux? I've seen blurbs about Net::Ethernet, NET::PCap, NET::PcapUtils..... I don't understand how they all work together.
<p>
I need to do the same thing tcpdump (Linux) and Ethereal do, read information from an ethernet port and display/modify the data. I need to write an application and not use Ethereal. We will be modifying the TCP/IP data and send it to the hardware we are producing. The ethernet data may be from FTP, TCP/IP, DNS, NTP or any other socket/port combo. I don't want to write a socket app for each combo.
Is this clearer?<p><small>2006-10-23 Retitled by [Arunbear], as per Monastery [id://341118|guidelines] <br />Original title: 'Ethernet'</small></p>
As an example:
while data_available_on_ethernet_device
read_data
parse_data
if data_is_what_I_am_looking_for
modify/add to data
format new tcp/ip packet
send/forward packet
else
discard packet
end_while
Thanks for all your help. If I can only resolve the errors with loading Net::Ethernet, Pcap, PcapUtils and libpcap, I could probably get this to work.