Date: Mon, 28 Dec 2009 11:06:04 -0800 From: Julian Elischer <julian@elischer.org> To: freebsd-net@freebsd.org Subject: Re: GIF MTU parmeter is needed Message-ID: <4B39019C.1030705@elischer.org> In-Reply-To: <20091228185801.GA5508@verio.net> References: <90dbee150912261333l602c4161nccaf1995dc83699a@mail.gmail.com> <4B3691FF.3050402@elischer.org> <90dbee150912270236k3be6e530r80d9e7576274137c@mail.gmail.com> <20091228185801.GA5508@verio.net>
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David DeSimone wrote:
> Hideki Yamamoto <hyama99@gmail.com> wrote:
>> h99# ifconfig xl0 inet6 2001:99::1
>> h99# ifconfig gif0 create
>> h99# ifconfig gif0 inet tunnel 192.168.1.8 192.168.1.4
>> h99# route add -inet6 2001:98::/64 -interface gif0
>> add net 2001:98::/64: gateway gif0
>> h99# ifconfig gif0 up
>
> I wonder if the problem you're seeing is due to the MTU attached to the
> static route that you're adding rather than the MTU of the interface.
>
> Try different command sequences and perform a "route get" to find out
> what MTU is being applied to the routes, to see if they change to what
> you expect.
>
Actually the route mtu will over-ride the interface mtu I think..
route change {address} mtu xxxx
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