From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262281AbULMUg7 (ORCPT ); Mon, 13 Dec 2004 15:36:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261340AbULMUei (ORCPT ); Mon, 13 Dec 2004 15:34:38 -0500 Received: from vsmtp12.tin.it ([212.216.176.206]:33231 "EHLO vsmtp12.tin.it") by vger.kernel.org with ESMTP id S262281AbULMU0M (ORCPT ); Mon, 13 Dec 2004 15:26:12 -0500 Date: Mon, 13 Dec 2004 21:26:03 +0100 From: Giuliano Pochini To: Linux-kernel Subject: 2.6.9 NAT problem Message-Id: <20041213212603.4e698de6.pochini@shiny.it> X-Mailer: Sylpheed version 0.9.6 (GTK+ 1.2.10; powerpc-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I can't make NAT work on 2.6.9. Outgoing packets are translated and sent, but incoming packets get rejected. pc4 is the other box (inside the NAT) and host164-26... is the dynamic address of my machine: 20:42:20.132876 IP pc4.33115 > nsa.tin.it.domain: 7213+ AAAA? www.drweb32.com. (33) 20:42:20.132876 PPPoE [ses 0x5198] IP host164-26.pool21345.interbusiness.it.33115 > nsa.tin.it.domain: 7213+ AAAA? www.drweb32.com. (33) 20:42:20.446829 PPPoE [ses 0x5198] [length 124 (4 extra bytes)] IP nsa.tin.it.domain > host164-26.pool21345.interbusiness.it.33115: 7213 0/1/0 (94) 20:42:20.446829 PPPoE [ses 0x5198] IP host164-26.pool21345.interbusiness.it > nsa.tin.it: icmp 130: host164-26.pool21345.interbusiness.it udp port 33115 unreachable I enable NAT with this commands: echo "1" >/proc/sys/net/ipv4/ip_dynaddr echo "1" >/proc/sys/net/ipv4/ip_forward iptables -t nat -A POSTROUTING -s pc4 -d ! 192.168.1.0/24 -j MASQUERADE I also tried SNAT with same results. I don't know if this info is useful: all the connection couples shown by /proc/net/ip_conntrack are in [UNREPLIED] state. I'm using iptables 1.2.11 and linux 2.6.9. All the above works just fine with 2.6.8.1 and previous versions. Linux Jay 2.6.9 #3 SMP Mon Dec 13 19:58:08 CET 2004 ppc unknown -- Giuliano.