Date: Sat, 28 Jan 2006 23:16:31 +0100 From: Koen Martens <fbsd@metro.cx> To: Oleg Bulyzhin <oleg@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: ipfilter + bge strangeness Message-ID: <43DBED3F.3000408@metro.cx> In-Reply-To: <20060128211710.GA29790@lath.rinet.ru> References: <43DB8EA6.7070503@metro.cx> <20060128211710.GA29790@lath.rinet.ru>
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Oleg Bulyzhin wrote: > 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. Sure thing, although it happens with other kinds of traffic too (in the dump, there's some NTP for example). Here's the netstat output before: http://www.metro.cx/bge/pre.txt Here's the tcpdump output: http://www.metro.cx/bge/tcpdump.txt And netstat after..: http://www.metro.cx/bge/post.txt Seems like the bad checksums are on outgoing packets only, which sort of explains why with 5.4 there were no problems (as it only has the option rxcsum). txcsum and rxcsum are linked however, it is either both on or both off on 6-stable.. Thanks for your reply, Koen -- K.F.J. Martens, Sonologic, http://www.sonologic.nl/ Networking, hosting, embedded systems, unix, artificial intelligence. Public PGP key: http://www.metro.cx/pubkey-gmc.asc Wondering about the funny attachment your mail program can't read? Visit http://www.openpgp.org/
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