From mboxrd@z Thu Jan 1 00:00:00 1970 From: G Georgiev Date: Thu, 11 May 2006 14:58:12 +0000 Subject: Re: [LARTC] SNAT on IPSEC tunnel with kernel 2.6/KAME tools? Message-Id: <200605111101.12051.subscriptions@navig.ca> List-Id: References: <200605031322.30125.subscriptions@navig.ca> In-Reply-To: <200605031322.30125.subscriptions@navig.ca> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Could you (or someone else on the list) just tell me how this can be done with the netfilter? I could not find a way for it. I am with kernel 2.6.16-14 now. The problem, again: > Could not conceive an working set-up for an IPSEC VPN made with > racoon/setkey on which I have one address on my side acting as an SNAT > router for all traffic from my network to a network segment on the far > side. > > my network --- my gateway ---------------------- remote network > 10.0.0.0/24 - 10.0.0.1 (10.253.0.2) -- tunnel - 192.168.0.0/22 > > The VPN starts on the gateway, simply all traffic destinate to > 192.168.0.0/22 should get an SNAT to 10.253.0.2 and go via the tunnel. > SNAT however is available only in POSTROUTING chain, and no outgoing > interface really exists with setkey. > So, next rule should be implemented on the gateway: "Packets going to > 192.168.0.0/22 should be SNAT to 10.253.0.2 and go via the tunnel" George. _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc