From mboxrd@z Thu Jan  1 00:00:00 1970
From: Brian G <unixman83@gmail.com>
Subject: Writing a mangle TARGET for iptables, questions about fragments,
 checksums
Date: Sat, 02 Apr 2011 23:47:20 -0500
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Hi,

I want to modify a packet in the TCP mangle PREROUTING table.

First question: Fragments, does the kernel reassemble them BEFORE this 
point?
Second question: Checksums, do I need to update the checksum?

Is there example code that I could work with?

- Brian