Hi folks, I'm trying to setup an IPv6 BGP session between OpenBGPD and a cisco router on my provider end. Unfortunately the session doesn't get established.
This router is running OpenBSD 4.1 and the problem exist with shipped bgpd and openbgpd 4.3 as well. group "XXX" { neighbor 2001:XXXX { descr "Peer1" remote-as XXX local-address 2001:XXXX announce self enforce neighbor-as yes tcp md5sig XXXX announce IPv4 none announce IPv6 unicast softreconfig in yes softreconfig out yes } } The session never went up and those message are logged. Oct 25 23:16:05 router bgpd[31122]: neighbor 2001:XXXX (Peer1): received notification: error in OPEN message, unsupported capability Oct 25 23:16:05 router bgpd[31122]: neighbor 2001:XXXX (Peer1): received "unsupported capability" notification without data part, disabling capability announcements altogether Oct 25 23:16:05 router bgpd[31122]: neighbor 2001:XXXX (Peer1): socket error: Connection refused Oct 25 23:16:33 router bgpd[31122]: neighbor 2001:XXXX (Peer1): received notification: error in OPEN message, unsupported capability Oct 25 23:16:33 router bgpd[31122]: neighbor 2001:XXXX (Peer1): received "unsupported capability" notification without data part, disabling capability announcements altogether The exactly same session worked correctly with a Linux router running quagga with following config: router bgp XXX no bgp default ipv4-unicast neighbor 2001:XX remote-as XX address-family ipv6 network 2001:788::/32 neighbor 2001:XX activate neighbor 2001:XX route-map transit_in_ipv6 in neighbor 2001:XX route-map transit_out_ipv6 out exit-address-family Thanks for any advice, Frangois