Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752964AbaBTUjx (ORCPT ); Thu, 20 Feb 2014 15:39:53 -0500 Received: from mail-lb0-f180.google.com ([209.85.217.180]:65229 "EHLO mail-lb0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751717AbaBTUjv (ORCPT ); Thu, 20 Feb 2014 15:39:51 -0500 MIME-Version: 1.0 In-Reply-To: <53050244.1020106@citrix.com> References: <1392433180-16052-1-git-send-email-mcgrof@do-not-panic.com> <1392433180-16052-3-git-send-email-mcgrof@do-not-panic.com> <1392668638.21106.5.camel@dcbw.local> <1392828325.21976.6.camel@dcbw.local> <53050244.1020106@citrix.com> From: "Luis R. Rodriguez" Date: Thu, 20 Feb 2014 12:39:29 -0800 X-Google-Sender-Auth: 3V2rZCREbKS3Jo1LIMjRuVp2TMw Message-ID: Subject: Re: [RFC v2 2/4] net: enables interface option to skip IP To: Zoltan Kiss Cc: Dan Williams , "netdev@vger.kernel.org" , xen-devel@lists.xenproject.org, kvm@vger.kernel.org, "linux-kernel@vger.kernel.org" , "David S. Miller" , Alexey Kuznetsov , James Morris , Hideaki YOSHIFUJI , Patrick McHardy Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 19, 2014 at 11:13 AM, Zoltan Kiss wrote: > On 19/02/14 17:20, Luis R. Rodriguez wrote: >>>> On 19/02/14 17:20, Luis R. Rodriguez also wrote: >>>> Zoltan has noted though some use cases of IPv4 or IPv6 addresses on >>>> backends though <...> >> >> As discussed in the other threads though there *is* some use cases >> of assigning IPv4 or IPv6 addresses to the backend interfaces though: >> routing them (although its unclear to me if iptables can be used >> instead, Zoltan?). > > Not with OVS, it steals the packet before netfilter hooks. Got it, thanks! Can't the route be added using a front-end IP address instead on the host though ? I just tried that on a Xen system and it seems to work. Perhaps I'm not understand the exact topology on the routing case. So in my case I have the backend without any IPv4 or IPv6 interfaces, the guest has IPv4, IPv6 addresses and even a TUN for VPN and I can create routes on the host to the front end by not using the backend device name but instead using the front-end target IP. Luis -- 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/