From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Frederic Sowa Subject: Re: Fwd: RFC 6980 on Security Implications of IPv6 Fragmentation with IPv6 Neighbor Discovery Date: Thu, 15 Aug 2013 12:25:07 +0200 Message-ID: <20130815102507.GA24122@order.stressinduktion.org> References: <20130813221321.AEA1AB1E003@rfc-editor.org> <520B3D81.9070506@gont.com.ar> <20130814230617.GA13066@order.stressinduktion.org> <520C7519.1010000@gont.com.ar> <20130815100407.GA18564@order.stressinduktion.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Fernando Gont , netdev To: Loganaden Velvindron Return-path: Received: from order.stressinduktion.org ([87.106.68.36]:53315 "EHLO order.stressinduktion.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752579Ab3HOKZJ (ORCPT ); Thu, 15 Aug 2013 06:25:09 -0400 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Thu, Aug 15, 2013 at 02:14:46PM +0400, Loganaden Velvindron wrote: > I'm not sure if you got my previous mails, but I'd like to know a > couple of things: Ah, you asked me off-list. So, for a wider audience, I copy & paste my answers from the just answered mail. ;) > 1) How can I test this diff ? Actually, nothing should change at all. Myself, I used scapy to construct some packets and send it to a system with the patched kernel and had some printks sprinkeled in the source while watching tcpdump. > 2) It's developed against which git brach ? linux-next ? Yes, I targeted linux-next. But it should apply to older kernels without too much fuzz as well. > 3) What will/could break with this diff in a production environment ? RA messages could get fragmented if a speaker puts lots of options in it. I hope all RA speakers already spread the options over multiple RAs, but I don't know. In case the RA is fragmented it will now be dropped silently. Thanks, Hannes