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Date:      Tue, 06 Jun 2023 08:31:29 +0000
From:      Benoit Chesneau <benoitc@enki-multimedia.eu>
To:        "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org>
Subject:   how to use fib and bird
Message-ID:  <axFHByZm283A3LecL6ZL3ShMBp5ZCzEPFuVJHVpVQ08LfdoosBLrjNkz51hPfXrOzlEQiPYUZNHedRCgFmhBVufAwNVV0UaSdWZZ3TsUkiQ=@enki-multimedia.eu>
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Hi,

I'm trying to advertise and get routing info via BGP andbird in a distinct =
fib but it seems that bird is always trying to connect to peers on the Fib =
0. I tried the following configuration:

```
    protocol bgp transit_ipv4_1 {
    =C2=A0 =C2=A0 local A.B.C.1 as XXXX;
    =C2=A0 =C2=A0 neighbor A.B.C.0 as XXXX;
    =C2=A0 =C2=A0 default bgp_med 0;
    =C2=A0 =C2=A0 default bgp_local_pref 50;
    =C2=A0 =C2=A0 password "somepass";
    =C2=A0 =C2=A0 ipv4 {
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 import keep filtered;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 import filter ebgp_import;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 export filter ebgp_export;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 igp table enki_tabv4;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 next hop self;
    =C2=A0 =C2=A0 };
    };
```

where the enki_tabv4 should be populated via the kernel protocol:


```
    protocol kernel enkiv4 {
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 learn;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 kernel table 1;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 ipv4 {
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 table enki_tabv=
4;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 import all;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 export filter e=
xport_kernel;
    =C2=A0 =C2=A0 =C2=A0 =C2=A0 };
    }

```

I say "should be" because apparentlyit isn't and I get such error:

```
2023-06-06 02:05:58.571 <TRACE> enkiv4: A.B.C.D/24: ignored
    2023-06-06 02:05:58.571 <TRACE> enkiv4: A.B.C.D/32: [alien]=20

...


2023-06-06 02:05:58.571 <TRACE> enkiv4.ipv4 > added [best] A.B.C.D/32 0L 4G=
 unicast
2023-06-06 02:05:58.571 <TRACE> enkiv4.ipv4 < rejected by protocol A.B.C.D/=
32 0L 4G unicast
```

How can I tell the bgp protocol to look at the routing info in the fib 1 to=
 connect?



Beno=C3=AEt

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