Hello, It seems that bird can’t resolve the next-hop in that case. But there is no issue when the next-hop is announced by OSPF. bird> show route all for 45.91.127.1 Table master4: 45.91.127.0/24 unreachable [ibgp_hv02_ipv4 16:16:24.927 from 89.234.186.40] * (100/-) [i] Type: BGP univ BGP.origin: IGP BGP.as_path: BGP.next_hop: 89.234.186.116 BGP.local_pref: 100 unreachable [ibgp_nominoe_ipv4 16:01:40.402 from 89.234.186.33] (100/-) [i] Type: BGP univ BGP.origin: IGP BGP.as_path: BGP.next_hop: 89.234.186.116 BGP.med: 150 BGP.local_pref: 100 BGP.originator_id: 89.234.186.40 BGP.cluster_list: 89.234.186.33 bird> show route all for 89.234.186.116 Table master4: 89.234.186.116/32 unicast [ibgp_hv02_ipv4 16:21:11.352] * (100/0) [i] via 89.234.186.40 on enp3s0f1.33 Type: BGP univ BGP.origin: IGP BGP.as_path: BGP.next_hop: 89.234.186.40 BGP.local_pref: 100 unicast [ibgp_nominoe_ipv4 16:20:22.754 from 89.234.186.33] (100/0) [i] via 89.234.186.40 on enp3s0f1.33 Type: BGP univ BGP.origin: IGP BGP.as_path: BGP.next_hop: 89.234.186.40 BGP.med: 150 BGP.local_pref: 100 BGP.originator_id: 89.234.186.40 BGP.cluster_list: 89.234.186.33 But cisco works well: asbr01#sh ip route 45.91.127.1 Routing entry for 45.91.127.0/24 Known via "bgp 204092", distance 200, metric 150, type internal Last update from 89.234.186.116 00:07:07 ago Routing Descriptor Blocks: * 89.234.186.116, from 89.234.186.40, 00:07:07 ago Route metric is 150, traffic share count is 1 AS Hops 0 MPLS label: none asbr01#ping 45.91.127.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 45.91.127.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms asbr01# asbr01#sh ip route 89.234.186.116 Routing entry for 89.234.186.116/32 Known via "bgp 204092", distance 200, metric 150, type internal Last update from 89.234.186.40 01:13:29 ago Routing Descriptor Blocks: * 89.234.186.40, from 89.234.186.40, 01:13:29 ago Route metric is 150, traffic share count is 1 AS Hops 0 MPLS label: none Am I missing something? Regards, -- Alarig