I would assume that if a card, say the em, has hardware TX checksum
that the UDP checksum could be calculated by the hardware, but this
seems not to be the case. The manual pages are unhelpful in this regard.
Thanks,
George
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freebsd-net@freebsd.org m
On Wed, 9 Jul 2008, [EMAIL PROTECTED] wrote:
I would assume that if a card, say the em, has hardware TX checksum that the
UDP checksum could be calculated by the hardware, but this seems not to be
the case. The manual pages are unhelpful in this regard.
On the whole, they should be generated
At Thu, 10 Jul 2008 11:43:23 +0100 (BST),
rwatson wrote:
>
> On Wed, 9 Jul 2008, [EMAIL PROTECTED] wrote:
>
> > I would assume that if a card, say the em, has hardware TX checksum that
> > the
> > UDP checksum could be calculated by the hardware, but this seems not to be
> > the case. The man
On Thu, 10 Jul 2008, [EMAIL PROTECTED] wrote:
If the sysctl it turned off on the transmitter then the receiving machine
sees UDP checksums of 0.
Right. If you disable UDP checksumming, we don't generate checksums (hardware
or software) in udp_output():
/*
* Set up checksu
A, thanks,
George
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