From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [net PATCH 0/2] Fix outer UDP checksums for IPv6 VXLAN tunnels Date: Tue, 25 Nov 2014 14:13:05 -0500 (EST) Message-ID: <20141125.141305.1951284300777976974.davem@davemloft.net> References: <20141125035808.13612.52556.stgit@ahduyck-workstation.home> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: alexander.duyck@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:37176 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750834AbaKYTNI (ORCPT ); Tue, 25 Nov 2014 14:13:08 -0500 In-Reply-To: <20141125035808.13612.52556.stgit@ahduyck-workstation.home> Sender: netdev-owner@vger.kernel.org List-ID: From: alexander.duyck@gmail.com Date: Mon, 24 Nov 2014 20:08:25 -0800 > In testing against an older kernel I found a couple issues in the IPv6 > VXLAN tunnel checksum logic for the outer UDP checksum. > > First the default transitioned from using an outer checksum to not using > one. Second, sometime after that the checksum inputs were changed > resulting the checksum not being correct if it were computed. > > These two issues prevented a ping from the newer kernel to the older one. > With these two changes applied I verified I was able to send traffic over > the VXLAN tunnel to a link partner on an older kernel. > > The boolean flip fix can be submitted for 3.17 stable as well since the > patch that introduced the issue was included in that kernel. Series applied and queued up for -stable, thanks.