Ethereal-dev: Re: [Ethereal-dev] TCP checksums

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From: Georg von Zezschwitz <gvz@xxxxxxxxxx>
Date: Sun, 21 Oct 2001 23:15:29 +0200
On Sun, Oct 21, 2001 at 06:11:42PM +0100, Mark Burton wrote:
> I have discovered that if you capture packets under linux 2.4.4 from
> an 3c905c ethernet card, the TCP checksum is sometimes wrong.

Hi!

This is a known bug in this kernel. It lasted till 2.4.7 or 2.4.8.
An upgrade is fully sufficient.

The error occurs on retransmission, I think only when multiple
small packets to retransmit are aggregated to one bigger packet.

Cheers,


Georg