From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benoit Boissinot Subject: Re: [PATCH 5 of 5] IPv6: temporary address: update the timer for tentative addresses Date: Tue, 1 Apr 2008 23:53:25 +0200 Message-ID: <20080401215325.GN475@pirzuine> References: <4765830d9f3848ef14e6.1206305173@pirzuine> <20080328.122558.13389103.yoshfuji@linux-ipv6.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org, pekkas@netcore.fi To: YOSHIFUJI Hideaki / =?utf-8?B?5ZCJ6Jek6Iux5piO?= Return-path: Received: from pilet.ens-lyon.fr ([140.77.167.16]:45714 "EHLO pilet.ens-lyon.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751571AbYDAVx3 (ORCPT ); Tue, 1 Apr 2008 17:53:29 -0400 Content-Disposition: inline In-Reply-To: <20080328.122558.13389103.yoshfuji@linux-ipv6.org> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, Mar 28, 2008 at 12:25:58PM +0900, YOSHIFUJI Hideaki / =E5=90=89= =E8=97=A4=E8=8B=B1=E6=98=8E wrote: > In article <4765830d9f3848ef14e6.1206305173@pirzuine> (at Sun, 23 Mar= 2008 21:46:13 +0100), Benoit Boissinot = says: >=20 > > IPv6: temporary address: update the timer for tentative addresses > >=20 > > Even for tentative addresses, we should update the timer, > > otherwise if the preferred lifetime is too short we will > > miss the opportunity to regenerate the adress. >=20 > Well, but it this ever happens, it implies that the lifetime > is too short, doesn't it? > We don't want such temporary address too much. I do agree. In this case, short means less than ADDR_CHECK_FREQUENCY (2 minutes), and it might be too aggressive. In fact, I don't really know what are the consequences of running with a very short regen for temporary addresses (let's say for example, 1 minutes preferred lifetime, and 5 minutes valid lifetime). But it was really useful for me for testing it, and it fixes a bug (anyway if you use too short lifetimes you'll hit the max addresses limit really fast). regards, Benoit ps: I'll resubmit the patches to which you already agreed soon. --=20 :wq