bird and OSPF on p2p

[Eugene M. Zheganin]

Hi, guys !

I'm trying to use bird/OSPF on a bunch of gre tunnels.
Though I'm using it successfully with ipv6 on same tunnels, I have no 
clue why it doesn't announce the networks when on ipv4.

My typical setup is as follows:

VPN HUB <-----WAN/gre/OSPF-----> branch router <--local-network-->

At this time VPN HUB runs quagga/ospfd (due to this problem I'm talking 
about). I receive all the routing updates from HUB on a branch router, 
but HUB doesn't get anything from a branch router:

HUB:

# ifconfig gre14
gre14: flags=b051<UP,POINTOPOINT,RUNNING,LINK0,LINK1,MULTICAST> metric 0 
mtu 1476
         tunnel inet 192.168.3.24 --> 192.168.6.191
         inet 172.16.3.134 --> 172.16.3.135 netmask 0xffffffff
         inet6 fe80::21a:64ff:fe21:8e80%gre14 prefixlen 64 scopeid 0x2b
         nd6 options=3<PERFORMNUD,ACCEPT_RTADV>

# vtysh
[...]
sh ip ospf nei
[...]
192.168.6.191     1 Full/DROther      38.434s 172.16.3.135 
gre14:172.16.3.134       0     0     0

# route -n get 192.168.9.0/27
route: writing to routing socket: No such process

Branch:

# birdc -s /var/run/bird.ctl
BIRD 1.3.8 ready.
bird> show ospf neighbors
ospfv4:
Router ID       Pri          State      DTime   Interface  Router IP
192.168.3.24      1         full/ptp    00:33   gre0 172.16.3.134

bird> sh route protocol direct1
192.168.6.128/25   dev vr2 [direct1 14:02] * (240)
192.168.9.0/27     dev bridge0 [direct1 14:02] * (240)
172.16.3.134/32    dev gre0 [direct1 14:02] * (240)

bird> sh route filter exportospfv4
192.168.9.0/27     dev bridge0 [direct1 14:02] * (240)
172.16.3.134/32    dev gre0 [direct1 14:02] * (240)

gre0: flags=b051<UP,POINTOPOINT,RUNNING,LINK0,LINK1,MULTICAST> metric 0 
mtu 1476
         tunnel inet 192.168.6.191 --> 192.168.3.24
         inet 172.16.3.135 --> 172.16.3.134 netmask 0xffffffff
         inet6 fe80::20d:b9ff:fe20:d980%gre0 prefixlen 64 tentative 
scopeid 0x9
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>


Thanks.
Eugene.