From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Frederic Sowa Subject: Re: IPv6 path discovery oddities - flushing the routing cache resolves Date: Fri, 18 Oct 2013 05:04:40 +0200 Message-ID: <20131018030440.GI18135@order.stressinduktion.org> References: <525E6B03.1040409@blub.net> <20131016154841.GC18135@order.stressinduktion.org> <525FC1C4.3070605@blub.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: netdev@vger.kernel.org To: Valentijn Sessink Return-path: Received: from order.stressinduktion.org ([87.106.68.36]:42249 "EHLO order.stressinduktion.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755640Ab3JRDEm (ORCPT ); Thu, 17 Oct 2013 23:04:42 -0400 Content-Disposition: inline In-Reply-To: <525FC1C4.3070605@blub.net> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, Oct 17, 2013 at 12:53:56PM +0200, Valentijn Sessink wrote: > Hi, > > Thanks for your fast response, please see below. Sorry for the rather > long mail, due to the routing tables. Even though they're really short, > the output of ipv6_route is extensive... > > On 16-10-13 17:48, Hannes Frederic Sowa wrote: > >I do think these two issues are connected. Could you send me a the > >corresponding ip route output and /proc/net/ipv6_route output for when it > >works and mtus are correctly handled and when it does not work? > > When it works (please note that the routing cache at first doesn't show > an MTU, that only happens after a "too big" has been received, hence the > difference before and after a "ps uaxww"), I have the following - this > is from last night: Thanks, I needed this to verify I am on the right track replicating this. 2001:1af8:ff03:3:219:66ff:fe26:6dd is the other end of the connection, I guess? Greetings, Hannes