From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fabio Marcone <fabio.marcone@duet.it>
Subject: tc and traffic established,related
Date: Tue, 21 Jul 2009 17:13:24 +0200
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Hi!

I'm studying traffic shaping and I have some doubts...

I have a linux router and I mark packets from lan to wan and I use a tc 
class to limit datarate (selecting packets by mark).
but how can I recognize answer packets? How can I know is a packet is 
about a connection previously established?

If I succeed I can limit upload and download rate of a particular 
connection...

Thanks in advance,
Fabio