I have 3 Linux machines connected to one another by point-to-point links. With the end point of each tunnel using a tun device, there are a total of 6 tun devices used on across the 3 machines. 2 per machine. Using OSPF, Bird is not advertising the addresses on the tun devices to the other nodes. This causes an issue because each device is unaware of the addresses on the tun devices on tunnels it is not connected to. In other words, node 'C' is unaware of the addresses on the tunnel between nodes 'A' and 'B'. Thats an issue because if the link between 'A' and 'B' fails, 'A' will get the routes 'B' knows about thru 'C', but 'B' does not know the tun address of 'A' thats connected to 'C' so all the traffic 'C' routes from 'A' to 'B' comes from an address 'B' can't route back too. (Sorry its so hard to follow) I've been able to alleviate it by adding a `stubnet` for each tun device on each machine, but I'm afraid that will become increasingly difficult to maintain as the number of nodes increases. Is there another way? I've been unsuccessful at getting bird to import (and advertise) the routes associated with the tun devices. (using the 'device' protocol I can get bird to import them, but ospf doesn't advertise them to the other nodes)