overriding static routes in FreeBSD

Ondrej Zajicek santiago at crfreenet.org
Tue Jun 15 15:24:44 CEST 2021


On Tue, Jun 15, 2021 at 02:50:09PM +0200, Alexander Zubkov wrote:
> Hi,
> 
> I think it is intentional so that bird should not meddle with "foreign"
> routes. In Linux, for example, it uses it's own protocol label and
> does not touch other routes. It can import them, but does not change them.

Hi

Yes, that is true.


> In your situation, I think the optimal solution is to have your
> original default routes with some high metric, so that bird's default
> should override it later. In that case it will not need to replace
> routes it does not own, because usually you can have routes with the
> same prefix but different metrics simultaneousely in your routing
> table.


That works in Linux, but i do not think it works in FreeBSD. AFAIK there
is only one route per network there.

Using -proto1 -nostatic for route is an easy way how to workaround this
issue on BSD.

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
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"To err is human -- to blame it on a computer is even more so."


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