Why default route is not installed last?

Kimmo Paasiala kpaasial at gmail.com
Mon Aug 26 11:56:17 UTC 2013


On Mon, Aug 26, 2013 at 2:37 PM, Hiroki Sato <hrs at freebsd.org> wrote:
> Xin Li <delphij at delphij.net> wrote
>   in <521670FF.6080407 at delphij.net>:
>
> de> -----BEGIN PGP SIGNED MESSAGE-----
> de> Hash: SHA512
> de>
> de> Hi,
> de>
> de> I've noticed that we do not install default route last (after other
> de> static routes).  I think we should probably install it last, since the
> de> administrator may legitimately configure a static route (e.g. this
> de> IPv6 address goes to this interface) that is required by the default
> de> route.
>
>  Do you have an example?  I could imagine some theoretically but
>  personally think that the default route which depends on a static
>  route is one which should be avoided.
>
> -- Hiroki

Isn't that the case when the default gateway address is on a different
subnet than the address assigned to the interface? Such set ups are
admittedly odd but they should be possible on FreeBSD as well as on
other OSes.

-Kimmo


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