Direct protocol affects BGP
Fabiano D'Agostino
fabiano.dagostino96 at gmail.com
Mon Mar 23 14:46:34 CET 2020
Hi,
thanks for helping,
I did show route for 192.168.2.22 (which is my neighbor) table all all -->
I get Network not found.
show protocols: bgp established
show protocol all bgp1: 0 imported, 0 exported
Il giorno lun 23 mar 2020 alle ore 14:18 Benedikt Neuffer <
benedikt.neuffer at kit.edu> ha scritto:
> Hi Fabio,
>
> so the routes are in FIB (kernel) but maybe not in RIB (bird).
>
> Can you provide me the output of "show route for <prefix> table all all"
> where <prefix> should be the prefix configured on the connection or the
> ip address of the neighbor.
>
> Regards,
> Bene
>
> On 23.03.20 12:43, Fabiano D'Agostino wrote:
> > Hi Benedikt,
> > the nexthop is resolvable, indeed router1 can ping router2'nic in the
> > same network of router1, with direct protocol disabled. The scenario is:
> > PCa - R1 - R2 - PCb
> > With direct protocol enabled and bgp working: PCa can ping PCb
> > With direct protocol disabled and bgp working: PCa can't ping PCb
> >
> >
> > Il giorno lun 23 mar 2020 alle ore 12:26 Benedikt Neuffer
> > <benedikt.neuffer at kit.edu <mailto:benedikt.neuffer at kit.edu>> ha scritto:
> >
> > Hi Fabio,
> >
> > the BGP nexthop field must be resolvable. In other words there must
> be a
> > route to the neighbor in RIB.
> >
> > Regards,
> > Bene
> >
> >
> > On 23.03.20 12:05, Fabiano D'Agostino wrote:
> > > Hi all,
> > > why if I disable the direct protocol the BGP routes are not
> > > imported/exported? If I run show route, it is empty, while if I
> enable
> > > the direct protocol show route has directly connected routes and
> > BGP routes.
> > > My configuration is very easy, two routers make a eBGP peering and
> > they
> > > import and export all routes. I am using Bird 2.0.7.
> > >
> > > Thanks,
> > >
> > > Fabiano
> >
> >
> > --
> > Karlsruher Institut für Technologie (KIT)
> > Steinbuch Centre for Computing (SCC)
> >
> > Benedikt Neuffer
> > Netze und Telekommunikation (NET)
> >
> > Hermann-von-Helmholtz-Platz 1
> > Gebäude 442
> > Raum 185
> > 76344 Eggenstein-Leopoldshafen
> >
> > Telefon: +49 721 608-24502
> > Fax: +49 721 608-47763
> > E-Mail: benedikt.neuffer at kit.edu <mailto:benedikt.neuffer at kit.edu>
> > Web: https://www.scc.kit.edu
> >
> >
> >
> > Sitz der Körperschaft:
> > Kaiserstraße 12, 76131 Karlsruhe
> >
> >
> >
> > KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
> >
> >
> >
> > Signaturversion: 19.1.0 beta
> >
>
>
> --
> Karlsruher Institut für Technologie (KIT)
> Steinbuch Centre for Computing (SCC)
>
> Benedikt Neuffer
> Netze und Telekommunikation (NET)
>
> Hermann-von-Helmholtz-Platz 1
> Gebäude 442
> Raum 185
> 76344 Eggenstein-Leopoldshafen
>
> Telefon: +49 721 608-24502
> Fax: +49 721 608-47763
> E-Mail: benedikt.neuffer at kit.edu
> Web: https://www.scc.kit.edu
>
>
>
> Sitz der Körperschaft:
> Kaiserstraße 12, 76131 Karlsruhe
>
>
>
> KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
>
>
>
> Signaturversion: 19.1.0 beta
>
>
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