From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755481Ab3HZC1X (ORCPT ); Sun, 25 Aug 2013 22:27:23 -0400 Received: from mail-pd0-f171.google.com ([209.85.192.171]:44206 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755195Ab3HZC1W (ORCPT ); Sun, 25 Aug 2013 22:27:22 -0400 Message-ID: <521ABD33.7070905@gmail.com> Date: Mon, 26 Aug 2013 10:28:03 +0800 From: zhuyj User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: zhuyj Subject: ipv6 global address remains while route item disappears after this interface is restared in 2.6.34.x Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With two directly connected targets running kernel 2.6.34.x. TargetA ------------------------- TargetB 3000::1/64 3000::2/64 TargetA - bring the interface down by doing an "ifconfig eth1 down" - bring the interface back up by doing an "ifconfig eth1 up" TargetB - ping6 3000::1 ping6 succeeds the first time - after bringing the interface on TargetA down and then back up, ping6 to the interface fails. The root cause is: IPv6 address 3000::1/64 remains while the ipv6 route on eth1 disappears. Thus on TargetB, running "ping6 3000::1" can not succeed. Compared with 3.4.x, ipv6 address and ipv6 route item are removed when an interface is restarted in the. Best Regards! zhuyj