From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: IPv6 default routes timing out? Date: Wed, 29 Jul 2009 10:42:07 -0700 Message-ID: <874osv8jyo.fsf@shaolin.home.digitalvampire.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netdev@vger.kernel.org Return-path: Received: from qmta08.westchester.pa.mail.comcast.net ([76.96.62.80]:35756 "EHLO QMTA08.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751184AbZG2RsF (ORCPT ); Wed, 29 Jul 2009 13:48:05 -0400 Received: from shaolin.home.digitalvampire.org (shaolin.home.digitalvampire.org [10.1.0.2]) by hellmouth.digitalvampire.org (Postfix) with ESMTP id 2DF99130BD for ; Wed, 29 Jul 2009 10:42:08 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: I recently set up IPv6 on home home network -- openbsd 4.5 box serving as a router with wired and wireless ports, advertising routes via the openbsd rtadvd daemon. I have no problem on boxes on the wired network, which gets a default route like: default via fe80::240:63ff:feda:3d15 dev eth0 proto kernel metric 1024 expires 8630sec mtu 1500 advmss 1440 hoplimit 64 However on laptops on the wireless network, I've seen the route timeout and apparently never reappear. This happens running both old kernels like 2.6.24 and also with 2.6.31-rc4, and on systems with both ipw2200 and iwlagn wirelss. The symptom is that if I leave my laptop running, say, overnight, in the morning the ipv6 default route is gone. ipv4 networking still works fine, and if I try explicit link-local ipv6 addresses on the laptop, they work fine too. But the ipv6 internet is gone because the kernel has no idea how to route packets to it. The openbsd rtadvd config is pretty basic, just: ral0:\ :addr="2001:470:8379:2::":prefixlen#64:rltime#9000:\ :maxinterval#120:mininterval#60: Any ideas as to what I'm doing wrong, or where the problem might be? Thanks, Roland