Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752590AbbHEJGU (ORCPT ); Wed, 5 Aug 2015 05:06:20 -0400 Received: from www62.your-server.de ([213.133.104.62]:44312 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751111AbbHEJGR (ORCPT ); Wed, 5 Aug 2015 05:06:17 -0400 Message-ID: <55C1D207.3040905@iogearbox.net> Date: Wed, 05 Aug 2015 11:06:15 +0200 From: Daniel Borkmann User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Zang MingJie CC: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [BUG] net/ipv4: inconsistent routing table References: In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1221 Lines: 40 [ please cc netdev ] On 08/05/2015 10:56 AM, Zang MingJie wrote: > Hi: > > I found a bug when remove an ip address which is referenced by a routing entry. > > step to reproduce: > > ip li add type dummy > ip li set dummy0 up > ip ad add 10.0.0.1/24 dev dummy0 > ip ad add 10.0.0.2/24 dev dummy0 > ip ro add default via 10.0.0.2/24 > ip ad del 10.0.0.2/24 dev dummy0 > > after deleting the secondary ip address, the routing entry still > pointing to 10.0.0.2 > > # ip ro > default via 10.0.0.2 dev dummy0 > 10.0.0.0/24 dev dummy0 proto kernel scope link src 10.0.0.1 > > but actually, kernel considers the default route is directly connected. > > # ip ro get 1.1.1.1 > 1.1.1.1 dev dummy0 src 10.0.0.1 > cache > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/