Re: Massive TCPv4 bad checksum

Andi Kleen (ak@muc.de)
18 Oct 1998 15:58:15 +0200

In article <Pine.LNX.4.02.9810181325430.509-100000@cassiopeia.home>,
Geert Uytterhoeven <geert@geert.cs.kuleuven.ac.be> writes:
> On Sat, 17 Oct 1998, H.J. Lu wrote:
>> I have massive TCPv4 bad checksum on my CSLIP link from
>> my CSLIP server to my machine ever since I upgraded to
>> linux 2.1.1xx. Any suggestions?

> My m68k box generates plenty of these messages when receiving packets from my
> PPC box. This would indicate a bug in the checksum code for either (or both)
> m68k and PPC.

> But I also see the message on my AXP box, when receiving packets from the PPC.
> The Intel box on our network reports no bad checksums at all. None of the
> Linux boxes report any bad checksums from the Winslows machines.

> Who's (who are?) the bad guy(s)?

Is there a systematic on what types of packets arrive with bad checksums?

-Andi

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