From mboxrd@z Thu Jan  1 00:00:00 1970
From: hoangtam <tamnghoang@gmail.com>
Subject: add new tcp option
Date: Thu, 20 Oct 2011 17:31:05 +0200
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Hi all,
I have done with netfilter to add 4 bytes to tcp header option. I use 
wireshark to check its working, and the result is : for the packets 
without data payload I can see 4 bytes in packet correctly; but for the 
packets with data payload 4 bytes changing. I'm sure that other fields 
of packet (tcp header, ip header) is ok. Any suggestion is appreciated.?