Date: Thu, 11 Jan 2007 12:44:03 +0100 From: Bernd Walter <ticso@cicely12.cicely.de> To: Pietro Cerutti <pietro.cerutti@gmail.com> Cc: freebsd-hackers@freebsd.org, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: [SOLVED] re(4) incorrect checksum Message-ID: <20070111114402.GX80390@cicely12.cicely.de> In-Reply-To: <e572718c0701110251l23ffa961w1851f19347daf845@mail.gmail.com> References: <e572718c0701110229q60a66d32o68f789c889b4a06@mail.gmail.com> <e572718c0701110251l23ffa961w1851f19347daf845@mail.gmail.com>
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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. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de
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