From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damion de Soto Date: Fri, 16 Jan 2004 01:26:22 +0000 Subject: Re: [LARTC] Two Gateways and NAT?? Message-Id: <40073DBE.8060102@snapgear.com> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Hi, Lars Landmark wrote: > I have two dsl lines, which the low bandwidth connection(ISP2) is only > used for failover. -----8<----- > > However, my interfaces which these lines are connected are both using NAT. > My question is; will TCP connections that NAT.ed over interface ISP1 > break if a failover happens and rerouted over ISP2?? Yes, all your tcp connections will need to be re-established. the only way around this is to have both main and failover ISP/s do some multi-path routing trickery - which is probabaly very unlikely. regards, -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: damion@snapgear.com SnapGear - A CyberGuard Company --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org --- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/