Date: Sun, 6 Jan 2002 22:39:31 -0800 From: "Crist J. Clark" <cristjc@earthlink.net> To: Rachel Leising <rleising@sbcglobal.net> Cc: freebsd-net@FreeBSD.ORG Subject: Re: name resolution problems and "full socket buffers" Message-ID: <20020106223931.E2029@gohan.cjclark.org> In-Reply-To: <a05100300b85ea4d919a2@[10.0.1.26]>; from rleising@sbcglobal.net on Sun, Jan 06, 2002 at 05:22:00PM -0800 References: <a05100300b85ea4d919a2@[10.0.1.26]>
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On Sun, Jan 06, 2002 at 05:22:00PM -0800, Rachel Leising wrote: > > -- > I can't seem to get name resolution working correctly. > > According to sniffer output, the dns query goes out fine and the > response comes back just fine. However, my machine then replies to > the dns server with an ICMP "port unreachable message"... regardless > of the ephemeral port used by my machine as the source port for the > dns query. Could you post the actual tcpdump(1) output, # tcpdump -vvvn 'udp && port 53' Just in case you are missing something. > nestat -s also shows the following udp counters incrementing: > > "x dropped due to no socket" This is what I would expect for what you describe... > "y dropped due to full socket buffers" Hmmmm... Could we double-check the firewall issue, $ sysctl net.inet.ip.fw.enable net.inet.ipf.fr_running And see the full output of, $ netstat -s -p udp $ netstat -an -p udp $ host testhost # your DNS test here $ netstat -s -p udp $ netstat -an -p udp -- "It's always funny until someone gets hurt. Then it's hilarious." Crist J. Clark | cjclark@alum.mit.edu | cjclark@jhu.edu http://people.freebsd.org/~cjc/ | cjc@freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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