Date: Tue, 1 Feb 2005 02:33:10 +0100 From: Jeremie Le Hen <jeremie@le-hen.org> To: freebsd-net@freebsd.org Cc: darrenr@FreeBSD.org Subject: Re: DUMMYNET broken on 4.11 (was: dummynet and vr(4)/egress broken in 4.11 ?) Message-ID: <20050201013310.GI60177@obiwan.tataz.chchile.org> In-Reply-To: <20050201010512.GH60177@obiwan.tataz.chchile.org> References: <20050128110731.GU59685@obiwan.tataz.chchile.org> <20050130144006.GA58883@obiwan.tataz.chchile.org> <20050201002034.GF60177@obiwan.tataz.chchile.org> <20050201010512.GH60177@obiwan.tataz.chchile.org>
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On Tue, Feb 01, 2005 at 02:05:12AM +0100, Jeremie Le Hen wrote: > On Tue, Feb 01, 2005 at 01:20:34AM +0100, Jeremie Le Hen wrote: > > > I'll give a try to a 4.10 kernel ASAP. > > > > I compiled the lastest kernel from RELENG_4_10 CVS branch and DUMMYNET > > pipes works well. I am able to use one pipe on my external interface > > egress without breaking TCP streams. > > > > I'm now recompiling the lastest kernel from the RELENG_4 branch to test > > the same configuration but I'm pretty sure it won't work. > > > > Any ideas of what could break this ? > > I run the lastest 4.11 kernel and using exactly the same configuration > breaks my TCP streams coming from my internal network. As I said, I took the lastest kernel from RELENG_4. DUMMYNET pipes will break any TCP stream coming from my internal network (which are thus NATed by IPFilter), but not the ones originated from the router itself. I checked the differences between RELENG_4_10 and RELENG_4 : o netinet/ nothing relevant o net/ nothing relevant o contrib/ipfilter/ could be the point given that IPFilter was updated from 3.4.31 to 3.4.35 and problems occur only when packets are NATed So I did: %%% # cd /sys/contrib/ipfilter # cvs up -r RELENG_4_10 -dP # config; make depend; make; make install ... %%% And it works ! So changes in IPFilter between 4.10 and 4.11 obviously broke DUMMYNET pipes (see my^H^Hthe entire thread for more details). Good night. Best regards, -- Jeremie Le Hen jeremie@le-hen.org
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