Advices for a weird multihop setup

[Alarig Le Lay]

Hi,

On jeu. 12 sept. 14:59:15 2019, Ondrej Zajicek wrote:
> Perhaps by setting 'gw' directly in BGP import filter?

If I set 'gw' in the import filter, all the routes are filtered, and
still marked as unreachable in the output of 'show route all filtered
table master6'

I also tried to set 'bgp_next_hop' but it’s also marked as unreachable
even if I have the route in the bird routing table.

bird> show route all for 2600:3402:200:227::2
Table master6:
2600:3400::/28       unicast [ibgp_regis_ipv6 2019-09-13 from 2a0e:f42:fffe::3] * (100/20) [AS4181i]
        via fe80::6c4b:84ff:fea2:1311 on tinc0
        Type: BGP univ
        BGP.origin: IGP
        BGP.as_path: 204092 34019 6939 4181
        BGP.next_hop: 2a00:5884::1 fe80::5287:89ff:fef0:ce81
        BGP.med: 50
        BGP.local_pref: 100
        BGP.community: (64496,100)
                     unreachable [bgp_terrahost_ipv6 15:13:32.658 from 2a03:94e0:feff::] (100/-) [AS4181i]
        Type: BGP univ
        BGP.origin: IGP
        BGP.as_path: 203629 6939 4181
        BGP.next_hop: 2a03:94e0:17ff::1
        BGP.local_pref: 100
bird> show route all for 2600:3402:200:227::2
Table master6:
2600:3400::/28       unicast [ibgp_regis_ipv6 2019-09-13 from 2a0e:f42:fffe::3] * (100/20) [AS4181i]
        via fe80::6c4b:84ff:fea2:1311 on tinc0
        Type: BGP univ
        BGP.origin: IGP
        BGP.as_path: 204092 34019 6939 4181
        BGP.next_hop: 2a00:5884::1 fe80::5287:89ff:fef0:ce81
        BGP.med: 50
        BGP.local_pref: 100
        BGP.community: (64496,100)
                     unreachable [bgp_terrahost_ipv6 15:21:01.947 from 2a03:94e0:feff::] (100/-) [AS4181i]
        Type: BGP univ
        BGP.origin: IGP
        BGP.as_path: 203629 6939 4181
        BGP.next_hop: 2a03:94e0:feff::
        BGP.local_pref: 100
bird> show route all for 2a00:5884::1
Table master6:
2a00:5884::/64       unicast [ospf_ipv6 2019-09-12] E1 (150/20) [89.234.186.31]
        via fe80::6c4b:84ff:fea2:1311 on tinc0
        Type: OSPF-E1 univ
bird> show route all for 2a03:94e0:17ff::1
Table master6:
2a03:94e0:17ff::1/128 unicast [static_terrahost_ipv6 2019-09-12] * (200)
        dev eno1
        Type: static univ
                     unicast [kernel_ipv6 2019-09-12] (10)
        dev eno1
        Type: inherit univ
bird> show route all for 2a03:94e0:feff::
Table master6:
2a03:94e0:feff::/128 unicast [static_terrahost_ipv6 2019-09-12] * (200)
        via 2a03:94e0:17ff::1 on eno1
        Type: static univ

-- 
Alarig