From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCHv2] IPv6: Allow the MTU of ipip6 tunnel to be set below 1280 Date: Mon, 07 Oct 2013 12:33:24 -0400 (EDT) Message-ID: <20131007.123324.1905399400311888938.davem@davemloft.net> References: <1380808166-13280-1-git-send-email-ou.ghorbel@gmail.com> <20131004133223.GA11410@order.stressinduktion.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: ou.ghorbel@gmail.com, kuznet@ms2.inr.ac.ru, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: hannes@stressinduktion.org Return-path: In-Reply-To: <20131004133223.GA11410@order.stressinduktion.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Hannes Frederic Sowa Date: Fri, 4 Oct 2013 15:32:23 +0200 > On Thu, Oct 03, 2013 at 02:49:26PM +0100, Oussama Ghorbel wrote: >> The (inner) MTU of a ipip6 (IPv4-in-IPv6) tunnel cannot be set below 1280, which is the minimum MTU in IPv6. >> However, there should be no IPv6 on the tunnel interface at all, so the IPv6 rules should not apply. >> More info at https://bugzilla.kernel.org/show_bug.cgi?id=15530 >> >> This patch allows to check the minimum MTU for ipv6 tunnel according to these rules: >> -In case the tunnel is configured with ipip6 mode the minimum MTU is 68. >> -In case the tunnel is configured with ip6ip6 or any mode the minimum MTU is 1280. >> >> Signed-off-by: Oussama Ghorbel ... > Acked-by: Hannes Frederic Sowa Applied, but please do not capitalize "IPv6" when using it as a subsystem prefix in Subject lines. Thanks.