From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Tverdokhleb Subject: Is there way to bypass conntrack? Date: Wed, 03 Sep 2003 10:47:06 -0700 Sender: netfilter-admin@lists.netfilter.org Message-ID: <3F56291A.90003@tigry.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: netfilter@lists.netfilter.org I'd really like to have some way to bypass ip_conntrack for some packets. Basically I need to run very intensive port scanning through my firewall and as soon as ip_conntrack loaded it dies within seconds from syn flood. Increase limit doesnt work becuase I need about 127000 packets to be sent from different source ports. So far I just keep contrack unloaded and firewall works fine as pure stateless filter. But now I need statefull inspection on this machine for some IPs. So the question - is it possible to avoid connection tracking for some specific IPs? Thanks! Andrey