Routing problem in EU?

[landerholm]

Hi,

I have a BGP tunnel setup in Sweden to tunnelbroker.net, but since a few days ago - the tunnel does not route any IPv6 packets.
I have an OpenBSD as router and has been using this configuration for years without problems.

I wonder what could be causing the problem?

This is some information about the tunnel:
# ifconfig gif0
gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
        priority: 0
        groups: gif egress
        tunnel: inet 81.230.146.66 -> 216.66.84.54
        inet6 fe80::213:3bff:fe0f:47a8%gif0 ->  prefixlen 64 scopeid 0x13
        inet6 2001:470:12:e0::2 -> 2001:470:12:e0::1 prefixlen 128

# netstat -nr
Internet6:
Destination                        Gateway                        Flags   Refs      Use   Mtu  Prio Iface
default                            2001:470:12:e0::1              UGS        0     9987     -     8 gif0

# route -n get 2a00:1450:400f:803::1012
   route to: 2a00:1450:400f:803::1012
destination: 2a00:1450::
       mask: ffff:ffff::
    gateway: 2001:470:12:e0::2
  interface: gif0
if address: 2001:470:12:e0::2
   priority: 48 (bgp)
      flags: <UP,GATEWAY,DONE>
     use       mtu    expire
      19         0         0

# ping6 2a00:1450:400f:803::1012 (www.google.com)
PING6(72=40+8+24 bytes) 2001:470:12:e0::2 --> 2a00:1450:400f:803::1012
ping6: sendmsg: No route to host
ping6: wrote 2a00:1450:400f:803::1012 32 chars, ret=-1
ping6: sendmsg: No route to host