Re: Writing a mangle TARGET for iptables, questions about fragments, checksums

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On Sunday 2011-04-03 06:47, Brian G wrote:

> Hi,
>
> I want to modify a packet in the TCP mangle PREROUTING table.
>
> First question: Fragments, does the kernel reassemble them BEFORE this point?

Potentially. It may, but it does not have to.

> Second question: Checksums, do I need to update the checksum?

Yes.
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