From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: iptables, ipsec, and host2host Date: Tue, 17 Feb 2009 19:34:57 +0100 Message-ID: <499B0351.5070101@trash.net> References: <499B0097.4000505@trash.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: netfilter-devel@vger.kernel.org To: Joe Pruett Return-path: Received: from stinky.trash.net ([213.144.137.162]:62295 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753280AbZBQSe7 (ORCPT ); Tue, 17 Feb 2009 13:34:59 -0500 In-Reply-To: Sender: netfilter-devel-owner@vger.kernel.org List-ID: Joe Pruett wrote: >> Packets in both tunnel and transport mode traverse the netfilter hooks >> after decapsulation and before encapsulation. From a users POV there >> should be nothing special about it. > > i don't see that behaviour on rhel/centos 5 kernels. could this have > changed since 2.6.18? for tunnel mode, it looks to me like the ip-ip > module is what causes traffic to be seen after decrypt/decap, and i just > don't see anything like that for transport mode. > > i'll do some more experiments. IIRC the IPsec support was merged around 2.6.17, but that might be wrong.