I'm running OpenBSD 4.2 on SPARC64. I have managed to get a simple BGP setup working on IPv4, however the IPv6 version of the same setup fails. A BGP session is established in both cases and peer B claims to be announcing what it should be announcing, yet in the IPv6 version peer A does not add it to its RIB.

Host A:
	AS: 64512
	Loopback: 192.168.0.1 2001:db8::1
	To B: 192.168.1.1/24 2001:db8:1::1/64
Host B:
	AS: 64513
	Loopback: 192.168.0.2 2001:db8::2
	To A: 192.168.1.2/24 2001:db8:1::2/64
	To miscellaneous subnet: 192.168.2.1/24 2001:db8:2::1/64

Host A:

lo0:
inet6 ::1 prefixlen 128
inet6 2001:db8::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
inet 192.168.0.1 netmask 0xffffffff

gem1:
inet6 2001:db8:1::1 prefixlen 64
inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255

bgp.conf.v4:
AS 64512
router-id 192.168.0.1

neighbor 192.168.1.2 {
	remote-as 64513
	announce all
}

allow from any

bgp.conf.v6:
AS 64512
router-id 192.168.0.1

neighbor 2001:db8:1::2 {
	remote-as 64513
	announce all
}

allow from any

bgpctl sh (v4):
Neighbor             AS       MsgRcvd    MsgSent    OutQ  Up/Down  State/PrfRcvd
192.168.1.2             64513          3          3     0 00:00:13      2

bgpctl sh (v6):
Neighbor             AS       MsgRcvd    MsgSent    OutQ  Up/Down  State/PrfRcvd
2001:db8:1::2           64513          3          4     0 00:00:31      0

bgpctl sh rib:
*>    192.168.0.2/32      192.168.1.2        100     0 64513 i
*>    192.168.2.0/24      192.168.1.2        100     0 64513 i

bgpctl sh rib inet6:
flags: * = Valid, > = Selected, I = via IBGP, A = Announced
origin: i = IGP, e = EGP, ? = Incomplete

flags destination         gateway          lpref   med aspath origin

Host B:

lo0:

inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet 192.168.0.2 netmask 0xffffffff
inet6 2001:db8::2 prefixlen 128

gem0:
inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255
inet6 2001:db8:2::1 prefixlen 64

gem1:
inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
inet6 2001:db8:1::2 prefixlen 64

bgpd.conf.v4:
AS 64513
router-id 192.168.0.2

network 192.168.0.2/32
network 192.168.2.0/24

neighbor 192.168.1.1 {
        remote-as 64512
        announce all
}

allow from any

bgpd.conf.v6
AS 64513
router-id 192.168.0.2

network 2001:db8::2/128
network 2001:db8:2::/64

neighbor 2001:db8:1::1 {
        remote-as 64512
        announce all
}

allow from any

bgpctl sh (v4)
Neighbor             AS       MsgRcvd    MsgSent    OutQ  Up/Down  State/PrfRcvd
192.168.1.1             64512          2          4     0 00:00:11      0

bgpctl sh (v6)
Neighbor             AS       MsgRcvd    MsgSent    OutQ  Up/Down  State/PrfRcvd
2001:db8:1::1           64512          2          2     0 00:00:06      0

bgpctl sh rib
AI*>  192.168.0.2/32      0.0.0.0            100     0 i
AI*>  192.168.2.0/24      0.0.0.0            100     0 i

bgpctl sh rib inet6
AI*>  2001:db8::2/128     ::                 100     0 i
AI*>  2001:db8:2::/64     ::                 100     0 i