Hi! I have problem with ospf configuration between Linux and Cisco. We have: LAN 10.200.199.0 | Linux (two public interfaces) | | INTERNET | Cisco (one public interface) | LAN 10.200.200.0 Between Linux and Cisco we have two GRE tunnels. I'd like to setup OSPF so gre tunnels will be redundant. On Linux I have: protocol kernel { persist; learn; scan time 20; export all; import all; } protocol device { scan time 10; } protocol direct { interface "*"; } protocol ospf myOSPF { tick 2; export all; import all; area 0 { interface "tunnel*"; }; } On cisco: router ospf 100 router-id 10.200.200.1 log-adjacency-changes network 10.200.200.0 0.0.0.255 area 0 network 192.168.100.68 0.0.0.3 area 0 network 192.168.101.68 0.0.0.3 area 0 192.168.100 and 192.168.101 are tunnel networks. The problem is that probably Linux doesn't send info about directly connected networks to Cisco. In Linux routing table, I see proper route: 10.200.200.0/24 via 192.168.100.70 dev tunnel0 proto bird But on Cisco side, there are only static routes: 85.0.0.0/29 is subnetted, 1 subnets S 85.*.*.* [1/0] via 79.*.*.* 217.*.*.*/30 is subnetted, 1 subnets S 217.*.*.* [1/0] via 79.*.*.* 10.0.0.0/24 is subnetted, 1 subnets C 10.200.200.0 is directly connected, Ethernet0 79.0.0.0/30 is subnetted, 1 subnets C 79.*.*.* is directly connected, Ethernet1 192.168.100.0/30 is subnetted, 1 subnets C 192.168.100.68 is directly connected, Tunnel0 192.168.101.0/30 is subnetted, 1 subnets C 192.168.101.68 is directly connected, Tunnel1 show ip ospf Routing Process "ospf 100" with ID 10.200.200.1 Supports only single TOS(TOS0) routes Supports opaque LSA SPF schedule delay 5 secs, Hold time between two SPFs 10 secs Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs Number of external LSA 76. Checksum Sum 0x2231B2 Number of opaque AS LSA 0. Checksum Sum 0x0 Number of DCbitless external and opaque AS LSA 76 Number of DoNotAge external and opaque AS LSA 0 Number of areas in this router is 1. 1 normal 0 stub 0 nssa External flood list length 0 Area BACKBONE(0) Number of interfaces in this area is 3 Area has no authentication SPF algorithm executed 51 times Area ranges are Number of LSA 3. Checksum Sum 0x36EE Number of opaque link LSA 0. Checksum Sum 0x0 Number of DCbitless LSA 2 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.209.192.2 1 FULL/ - 00:00:38 192.168.100.69 Tunnel0 10.209.192.2 1 FULL/ - 00:00:38 192.168.101.69 Tunnel1 What is wrong ? best regards -- Jarek <jarek@poczta.srv.pl>