[SOLVED] re(4) incorrect checksum

[Bernd Walter]

On Thu, Jan 11, 2007 at 11:51:51AM +0100, Pietro Cerutti wrote:
> Hi lists,
> ifconfig re0 -txcsum -rxcsum solved the problem....
> 
> Anyway, is this a bug in the driver or in the interface itself?

That is how checksum offloading works.
tcpdump can't see a correct checksum, because it is not calculated 
by the kernel and left for the hardware.
However checksum offloading is broken for re(4) based cards, therefor
it is disabled by default.

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