Hi Max, There was indeed a problem with the netmask, so BIRD did not consider the peer as directly connected. thanks for your help. Julien 2018-04-25 23:33 GMT+02:00 Maximilian Wilhelm <max@rfc2324.org>:
Anno domini 2018 Julien Sansonnens scripsit:
Hi,
I'm having a hard time trying to peer with some router over GRE tunnel. I'm using bird 1.6.4 I have many GRE tunnels and BGP sessions is working fine on all of the them except one.
Session is locked on "Idle" state. Here are my logs:
2018-04-25 15:22:00 <TRACE> carl: Waiting for fd00:1111::2 to become my neighbor 2018-04-25 15:22:02 <TRACE> carl: Incoming connection from fd00:1111::2 (port 32967) rejected [...] I can ping6 f d00:1111::2 withou problem. Tunnel looks OK to me.
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on peer-carl, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes 15:26:59.597762 IP6 fd00:1111::2.47991 > fd00:1111::1.bgp: Flags [S], seq [...]
How are the IPs configured on the tunnel? Did you configure fd00:1111::2/64 and fd00:1111::1/64 or are both IPs /128 with a peer IP/route to the other side? I've seen this issue with the latter configuration.
Best Max -- Alles sollte so einfach wie möglich gemacht sein. Aber nicht einfacher. (Einstein)