[ixpmanager] IPv4 & IPv6 peering but no routes being learned by IPv6

[Diarmuid O Briain]

Hi,

I did a bit of debugging and the problem appears to be related to the
import filter.

I stopped the automatic updating of the bird conf files from IXP Manager
and edited the last one where I hashed out the "import filter" lines in the
protocol configurations. I bounced the bird6 process and hey presto the
routes came in. So what is it about the filter that is causing this problem
?

ubuntu at rs1:/etc/bird$ *cat bird-rs1-lan1-ipv6.conf | grep '#        import
filter'*
#        import filter f_import_0001_as5111;
#        import filter f_import_0002_as5222;
#        import filter f_import_0003_as5333;

ubuntu at rs1:/run/bird$ *sudo birdc6 -s bird-rs1-lan1-ipv6.ctl *
BIRD 1.6.3 ready.
bird> show route
2a99:3:3::/64      via 2a99:9:9::33 on ens4 [pb_0003_as5333 17:36:52] *
(100) [AS5333i]
2a99:2:2::/64      via 2a99:9:9::22 on ens4 [pb_0002_as5222 17:36:53] *
(100) [AS5222i]
2a99:1:1::/64      via 2a99:9:9::11 on ens4 [pb_0001_as5111 17:36:52] *
(100) [AS5111i]
bird> exit

regards,

Diarmuid

--

*Irish by birth, located in Uganda but Munster by the grace of God.*



On 12 February 2018 at 19:56, Diarmuid O Briain <diarmuid at obriain.com>
wrote:

> Hi,
>
> I tested the configuration with a simple bird and bird6 setup first to
> ensure it was working.
>
>   ubuntu at rs1:~$* cat /etc/bird/bird6.conf*
>   log syslog all;
>
>   router id 199.9.9.1;
>   define LOCAL_AS = 5999;
>
>   template bgp PEERS {
>     rs client;
>     local as LOCAL_AS;
>     import all;
>     export all;
>   }
>
>   protocol device {
>           scan time 10;
>   }
>
>   protocol kernel {
>           export all;
>           scan time 15;
>   }
>
>   protocol bgp AS5111 from PEERS {
>           neighbor 2a99:9:9::11 as 5111;
>   }
>
>   protocol bgp AS5222 from PEERS {
>           neighbor 2a99:9:9::22 as 5222;
>   }
>
>   protocol bgp AS5222 from PEERS {
>           neighbor 2a99:9:9::33 as 5333;
>   }
>
> pretty much the same for the bird.conf file except for the neighbour
> addresses.
>
> After setting up the IXP Manager scripts on the rs1 the b
> ird-rs1-lan1-ipv{4|6}.ctl and the bird-rs1-lan1-ipv{4|6}.conf files are
> now generated by IXP Manager.
>
> BGP peers are establishing for both birdc and birdc6 daemons but under the
>  birdc6 no routes are being learnt. They were fine with the simple
> configuration above.
>
> ubuntu at rs1:~$ sudo birdc
> BIRD 1.6.3 ready.
> bird> *show protocol*
> name     proto    table    state  since       info
> device1  Device   master   up     15:24:54
> pp_0001_as5111 Pipe     master   up     15:24:54    => t_0001_as5111
> pb_0001_as5111 BGP      t_0001_as5111 up     15:24:58    Established
> pp_0002_as5222 Pipe     master   up     15:24:54    => t_0002_as5222
> pb_0002_as5222 BGP      t_0002_as5222 up     15:24:58    Established
> pp_0003_as5333 Pipe     master   up     15:24:54    => t_0003_as5333
> pb_0003_as5333 BGP      t_0003_as5333 up     15:24:58    Established
>
> bird> *show route*
> 199.1.1.0/24       via 199.9.9.11 on ens4 [pb_0001_as5111 15:24:58] *
> (100) [AS5111i]
> 199.3.3.0/24       via 199.9.9.33 on ens4 [pb_0003_as5333 15:24:58] *
> (100) [AS5333i]
> 199.2.2.0/24       via 199.9.9.22 on ens4 [pb_0002_as5222 15:24:58] *
> (100) [AS5222i]
> bird> exit
>
> ubuntu at rs1:~$* sudo birdc6*
> BIRD 1.6.3 ready.
> bird> show protocol
> name     proto    table    state  since       info
> device1  Device   master   up     15:24:54
> pp_0001_as5111 Pipe     master   up     15:24:54    => t_0001_as5111
> pb_0001_as5111 BGP      t_0001_as5111 up     15:24:58    Established
> pp_0002_as5222 Pipe     master   up     15:24:54    => t_0002_as5222
> pb_0002_as5222 BGP      t_0002_as5222 up     15:24:58    Established
> pp_0003_as5333 Pipe     master   up     15:24:54    => t_0003_as5333
> pb_0003_as5333 BGP      t_0003_as5333 up     15:24:55    Established
>
> bird> *show route*
> bird>
>
> regards,
>
> Diarmuid
> --
>
> *Irish by birth, located in Uganda but Munster by the grace of God.*
>
>
>
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