Re: Blocking UDP Fragments

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On Wednesday 2011-05-18 06:27, Pandu Poluan wrote:
>
>If you want to drop all fragmented packets, including the first packet
>of the fragment,
>
>iptables -t raw -A PREROUTING -m u32 ! --u32 0x4&0x3fff=0x0 -m comment
>--comment \"Fragmented\" -j DROP

Yeah but you forget

	iptables -f -j DROP

and that, when nf_defrag is loaded, autodefragmentation is happening and
Xtables won't see any more fragments.
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