Date: Sat, 04 Apr 2009 11:44:31 +0200 From: Sebastiaan van Erk <sebster@sebster.com> To: Artis Caune <artis.caune@gmail.com> Cc: freebsd-pf@freebsd.org Subject: Re: state mismatch/connection issues Message-ID: <49D72BFF.40109@sebster.com> In-Reply-To: <9e20d71e0904021328u5e871322k1523c2ce0bf9fdd1@mail.gmail.com> References: <49C9F27F.3010505@sebster.com> <9e20d71e0904021328u5e871322k1523c2ce0bf9fdd1@mail.gmail.com>
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This is a cryptographically signed message in MIME format. --------------ms080004000704010509030408 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, Thanks for the reply. > try without "block out log quick on $ext_if from !$ext_ip1 to any" rule. I have other firewalls with the same rule which don't show the problem. > btw, is your firewall forwarding traffic or doing nat? Actually it does neither, there is no need for the backend servers to access the internet directly. > Can you show pfctl -sr and ifconfig output? Looking again at the pfctl -s info output, I saw something which I missed the first time around: State Table Total Rate current entries 668 searches 70482052 118.5/s inserts 8153087 13.7/s removals 8152419 13.7/s Counters match 10637818 17.9/s bad-offset 0 0.0/s fragment 0 0.0/s short 0 0.0/s normalize 1 0.0/s memory 2405587 4.0/s bad-timestamp 0 0.0/s congestion 0 0.0/s ip-option 0 0.0/s proto-cksum 510 0.0/s state-mismatch 2276240 3.8/s state-insert 0 0.0/s state-limit 0 0.0/s src-limit 0 0.0/s synproxy 0 0.0/s The memory limit is hit almost the same amount of time as the state mismatches. It seems that my limits were simply too low. I have increased the limits (states/frags) and will see if the problem is resolved now. 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