Date: Sun, 31 Dec 2006 06:07:44 +0100 From: Dimitry Andric <dimitry@andric.com> To: "Sean C. Farley" <sean-freebsd@farley.org> Cc: freebsd-stable@freebsd.org, Joe Marcus Clarke <marcus@freebsd.org> Subject: Re: gif problems in -STABLE Message-ID: <459745A0.8030708@andric.com> In-Reply-To: <20061230163738.D1066@thor.farley.org> References: <4595C753.5030502@andric.com> <20061230163738.D1066@thor.farley.org>
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Sean C. Farley wrote: >> I just updated one of my machines from RELENG_6 as of 2006-11-03, to >> RELENG_6 as of 2006-12-29. This caused the IPv6 tunnel which this box >> uses, which had been doing fine for months, to suddenly stop working. ... >> For some reason, the ifconfig command now fails to create the proper >> routing table entries. With the 2006-11-03 kernel, if I configure my >> gif0 tunnel as follows: > > I can confirm my setup with Hurricane Electric also started failing at > some point: ... > I needed to add the following to restore the old (working) behavior: > ipv6_static_routes="defroute" > ipv6_route_defroute="AAAA:BBBB:CCCC:DDDD::1C -interface gif0" By doing some nice bisection debugging, I've narrowed the problem down to this specific commit: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet6/nd6.c#rev1.48.2.16 If you revert this change, tunnel configuration will work as before again. I'm now investigating the diff itself, to see if I can find an error in there anywhere... :) Cheers, Dimitry
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