Route preference for one address

[kc atgb]

Le Tue, 17 Dec 2019 14:17:50 +0100,
Robert Sander <r.sander at heinlein-support.de> a écrit :

> On 17.12.19 14:13, kc atgb wrote:
> 
> > You mean without any routing protocol ? Just full static routing into the
> > system ? 
> 
> No, with BGP. R2 announces the host route via BGP on the backup link to
> R1. If the backup link goes down, the BGP session is terminated and the
> announcement not valid any more.

Oh. The information was not there in the first message. I added it later. I'm
trying to do that with OSPF. 

With the static protocol or a filter to export from ospf to kernel, part of
these configs is in the OP, I am able to force the route back via the backup
link. But when the backup link is down, the routes persists. I am not sure why
for now. Maybe because the interface stays up. It's an openvpn tunnel. The tun
interface stays up on the server. 

Or maybe because OSPF configuration is export via the nominal link which is up,
so the static or export filter is always on. 

I'm still trying.
> 
> Regards