Date: Thu, 24 Mar 2005 13:45:02 -0800 (PST) From: Kelly Yancey <kbyanc@posi.net> To: Boris Kovalenko <boris@ntmk.ru> Cc: freebsd-net@freebsd.org Subject: Re: bge and checksums Message-ID: <20050324134142.K5907@gateway.posi.net> In-Reply-To: <4242785F.2070700@ntmk.ru> References: <4242785F.2070700@ntmk.ru>
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On Thu, 24 Mar 2005, Boris Kovalenko wrote:
> Hello!
>
> I try to use DSNiff with my FreeBSD 5.4-PRE and bge NIC. Unfortunatelly
> it does no work. My supposition is that the root of problem is bad tcp
> checksums (as shown by tcpdump). And DSNiff (and underlaying libnids)
> are checking for checksums. As I undrestand, bge has txcsum flag, so tcp
> stack does not computes checksum itself. Am I right? And may I turn off
> txcsum flag without modifying bge driver?
>
Have you tried the -txcsum option described in ifconfig(8)?
Kelly
--
Kelly Yancey - kbyanc@{posi.net,FreeBSD.org} - kelly@nttmcl.com
FreeBSD, The Power To Serve: http://www.freebsd.org/
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