BIRD IP tunnel problem

[noc at joey-network.de]

Hi, 

I figured out a problem with the BIRD routing daemon. 
It is not possible to route BGP via IPIP tunnels. As you can see below 
the packets will be routed through the wrong device. Normally it should 
choose "ASIX" as right device, but it does not. 

root at cr01:/etc/bird# ip -6 route | grep 2a06:8187:fe48::/48 
2a06:8187:fe48::/48 via 2a06:8187:fe01:100::2 dev vlan1000  proto bird  
src 2a06:8187:fe01::2  metric 1024  pref medium 

The interface configuration is the following: 

iface ASIX inet manual 
     pre-up ip -6 tunnel add ASIX mode any local 2a07:59c6:d007::1 
remote 2a00:1ca8:2a::730 ttl 255 
     pre-up ip link set dev ASIX mtu 1476 
     pre-up ip link set dev ASIX up 

     pre-up ip address add 89.46.125.149/30 dev ASIX 
     pre-up ip address add 2a06:8187:fe01:100::1/56 dev ASIX 
     post-down ip -6 tunnel del ASIX 

root at cr01:/etc/bird# birdc6 -v 
0001 BIRD 1.6.3 ready. 
bird> 

Maybe you can help me here? 

Kind regards. 
Joey