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From: Brian G <unixman83@gmail.com>
To: netfilter-devel@vger.kernel.org
Subject: Writing a mangle TARGET for iptables, questions about fragments, checksums
Date: Sat, 02 Apr 2011 23:47:20 -0500	[thread overview]
Message-ID: <4D97FBD8.9050907@gmail.com> (raw)

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

             reply	other threads:[~2011-04-03  4:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-03  4:47 Brian G [this message]
2011-04-14  7:00 ` Writing a mangle TARGET for iptables, questions about fragments, checksums Jan Engelhardt

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