Date: Tue, 04 Oct 2011 08:59:35 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: qing.li@bluecoat.com Cc: freebsd-net@FreeBSD.org, matt@xtaz.co.uk Subject: Re: gif interface not passing IPv6 packets Message-ID: <20111004.085935.2022185336256720622.hrs@allbsd.org> In-Reply-To: <B143A8975061C446AD5E29742C531723137EA0@PWSVL-EXCMBX-01.internal.cacheflow.com> References: <B143A8975061C446AD5E29742C531723137D9D@PWSVL-EXCMBX-01.internal.cacheflow.com> <CAD0n1vH-NzfwtgKXW8vyFdYKwEt3=NdjRxXxVacEruSntf%2BSBQ@mail.gmail.com> <B143A8975061C446AD5E29742C531723137EA0@PWSVL-EXCMBX-01.internal.cacheflow.com>
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----Security_Multipart(Tue_Oct__4_08_59_35_2011_336)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit "Li, Qing" <qing.li@bluecoat.com> wrote in <B143A8975061C446AD5E29742C531723137EA0@PWSVL-EXCMBX-01.internal.cacheflow.com>: qi> > qi> > Just to let you know that I was doing a lot of testing off of the qi> > mailing list with Hiroki Sato and we basically discovered that I was qi> > missing an alias on my lo0 interface. He first advised me to try qi> > testing with adding a /126 to gif0 rather than a /128 which worked qi> > successfully. Then he advised me to go back to the original qi> > configuration but also run ifconfig lo0 2a01:348:6:45c::2/128 alias qi> > which added the correct routes and resolved the problem. Whilst this qi> > is a workaround it obviously doesn't resolve the actual root cause so qi> > thank you if you come up with a patch. qi> > qi> qi> You don't need any aliases to make this configuration work. qi> qi> Adding the interface alias triggers the code that installs the qi> proper routing entry for the local end of the gif tunnel. qi> qi> The suggested workaround (wrt configuring aliases and lo0 manipulation) qi> is no different from doing the following: Correct, but doing configuration on the same interface multiple times except for adding aliases in our rc.conf framework is trickier so I suggested adding an alias to lo0. It is not the best way, of course. -- Hiroki ----Security_Multipart(Tue_Oct__4_08_59_35_2011_336)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEABECAAYFAk6KTGcACgkQTyzT2CeTzy0WzgCgqi/cvzvVq68g+T/AlapU+uJN ro8An0gNNxwtCFJPFGcoCFKYWRwe/63d =qIYc -----END PGP SIGNATURE----- ----Security_Multipart(Tue_Oct__4_08_59_35_2011_336)----
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