From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tore Anderson Subject: Re: Asymmetric routing and connection tracking Date: Wed, 08 Aug 2007 09:55:25 +0200 Message-ID: <46B976ED.30902@linpro.no> References: <46B81A0D.6090900@linpro.no> <1186487970.28140.20.camel@localhost> <46B87149.20505@linpro.no> <1186494447.28140.57.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1186494447.28140.57.camel@localhost> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii" To: Thomas Jacob Cc: netfilter@lists.netfilter.org * Thomas Jacob > So in the scenario described, R1 wouldn't do any stateful packet > filtering for packets to and from the internal server network? But > the connections will be added to the connection tracking table of R1 > nonetheless (unless you use the NOTRACK target in raw), only not with > an ESTABLISHED state which probably means they timeout more often > than needed and you have more insert/remove actions over the > connection tracking hash table, maybe that's the source of your > problem. > > You could try the NOTRACK/raw thing on the (internal-)standby-router, Hmm. I was not aware of NOTRACK/raw. This is very interesting and on first look it seems like exactly the thing I needed. Thank you very much for the pointer! I'll dig into it now. :-) Regards -- Tore Anderson