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.
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? 2006-10-23 Retitled by Arunbear, as per Monastery guidelines
Original title: 'Ethernet'
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.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
