how to filter out teardrop in linux2.4

From: zhengchuanbo (
Date: Mon Aug 05 2002 - 20:22:16 EST

i use linux2.4 as a router. when i tested the device i found that teardrop packets can penetrate the router. i remember that in linux2.2 there is a defragmant option. that can filter out the teardrop packets. but i think in linux2.4 the defragmen is action in default.
i tried the -f option in iptables,but that also could not stop the teardrop packets.
so how to filter out teardrop packets in linux2.4?
please cc. thanks.

chuanbo zheng

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