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Date: Sun, 29 Jan 2006 00:17:10 +0300
From: Oleg Bulyzhin <oleg@freebsd.org>
To: Koen Martens <fbsd@metro.cx>
Message-ID: <20060128211710.GA29790@lath.rinet.ru>
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Cc: freebsd-stable@freebsd.org
Subject: Re: ipfilter + bge strangeness
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On Sat, Jan 28, 2006 at 04:32:54PM +0100, Koen Martens wrote:
> Hi All,
> 
> Yesterday night, i was going to send the message below. However,
> just before pressing send, i found a solution to the problem:
> disable checksum checks (ifconfig bge0 -rxcsum -txcsum). Though this
> is a solution, it has me puzzled. Is this a bug^H^H^Hfeature of
> 6-STABLE, as it works with 5.4.
> 
> With 5.4, there was only the rxcsum option for the bge card, not a
> txcsum. It worked fine with rxcsum enabled on 5.4..
> 
> What are the consequences of disabling {rx,tx}csum? What is wrong
> with enabling it on 6-STABLE?
> 

Could you please run 'tcpdump -nvi bge0' while you are generating
dns traffic (having bge0 checksum offloading on)?

'netstat -sp udp' output might be helpful too.

-- 
Oleg.