Strange route selection (defroute and specific)

[Yakimus // Netassist NOC]

just add the preference for static:

protocol static defroutev4 {
    ipv4;
        route 0.0.0.0/0 unreachable;
	preference 5;
	}


-- 
NETassist

On Thu, Nov 20, 2025 at 11:25:45AM +0100, Nico Schottelius via Bird-users wrote:
> 
> Hello bird users,
> 
> on one pop we have a "funky" routing selection by bird:
> 
> bird> show route all  for 185.203.114.92
> Table master4:
> 0.0.0.0/0            unreachable [defroutev4 2025-10-30] * (200)
>         preference: 200
>         source: static
>         Internal route handling values: 0L 5G 0S id 1
> 185.203.114.0/23     unicast [incoming_server122 10:21:13.232] * (100) [AS213081i]
>         via 2a0a:e5c0:74:1::2 on iserver122
>         preference: 100
>         igp_metric: 0
>         from: 2a0a:e5c0:74:1::2
>         source: BGP
>         bgp_origin: IGP
>         bgp_path: 213081
>         bgp_next_hop: 2a0a:e5c0:74:1::2
>         bgp_local_pref: 100
>         Internal route handling values: 0L 10G 2S id 227979
> 
> The strange thing is that the default route, that is only created for
> exporting to others, has a higher preference.
> 
> The default route is defined as follows:
> 
> protocol static defroutev4 {
>     ipv4;
> 
>     route 0.0.0.0/0 unreachable;
> }
> 
> Why is that the case? And what does it mean if bird has a "*" for both
> routes? I thought only the active one is selected with a *?
> 
> Any hints appreciated,
> 
> Nico
> 
> --
> Sustainable and modern Infrastructures by ungleich.ch