From mboxrd@z Thu Jan 1 00:00:00 1970 From: hoangtam Subject: Netfilter data retransmit Date: Thu, 20 Oct 2011 09:33:18 +0200 Message-ID: <4E9FCEBE.5000404@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: netfilter-devel@vger.kernel.org Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:45473 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752311Ab1JTHdU (ORCPT ); Thu, 20 Oct 2011 03:33:20 -0400 Received: by wwe6 with SMTP id 6so3729253wwe.1 for ; Thu, 20 Oct 2011 00:33:19 -0700 (PDT) Sender: netfilter-devel-owner@vger.kernel.org List-ID: I add to TCP option 4 bytes using Netfilter hooks ( LOCAL_OUT ) and then recalculate the checksum correctly. When I send the packets using "wget www.google.com" , I see that the packet "Http Get" can not reach to the server, it re-transmits over time. Please help me with this.