Hello there, Need your help in configuring BIRD for ospf. I have 2 nodes running open wrt linux and bird version 1.1.1. The bird binary has been cross-compiled for the ARM platform. OSPF is configured in bird.conf for each node. Node 1 has 3 network interfaces and Node 2 has 4 network interfaces. Below is how Node 1 and 2 topologies are organized Node 1(192.168.3.20) <-------> Node2(192.168.3.10) (192.168.1.1) (192.168.4.10) (192.168.4.20) (192.168.5.10) Please note that Nodes 1 and 2 communicate only via 192.168.3.* network and the other interfaces on each node are independent. Now the issue here is that the routing tables between the 2 nodes aren't synchronized. Node 1 can ping the 192.168.3.10 and 192.168.5.10 IP addresses on Node 2. However there is no route to 192.168.1.* on Node 2. Any help would be highly appreciated. Below is what the bird configuration looks like on each individual node: Node 1 - ifconfig ----------------- root@OpenWrt:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:03:47:DF:33:A0 inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:6515 errors:0 dropped:0 overruns:0 frame:0 TX packets:2076 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:357685 (349.3 KiB) TX bytes:223675 (218.4 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:6 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:510 (510.0 B) TX bytes:510 (510.0 B) ra_ap0 Link encap:Ethernet HWaddr 00:0E:8E:20:2B:16 inet addr:192.168.4.20 Bcast:192.168.4.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5122 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:498002 (486.3 KiB) TX bytes:45008 (43.9 KiB) Interrupt:26 ra_sta0 Link encap:Ethernet HWaddr 00:0E:8E:1A:AD:76 inet addr:192.168.3.20 Bcast:192.168.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1321714 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:157112541 (149.8 MiB) TX bytes:176882570 (168.6 MiB) Interrupt:28 Node 1 - bird.conf ------------------ log "/lib/bird.log" { error }; protocol kernel { persist; scan time 20; export all; } protocol device { scan time 10; } protocol ospf { export all; import all; area 0.0.0.0 { interface "eth0"; interface "ra_ap0"; interface "ra_sta0"; }; } Node 1 - birdc output --------------------- BIRD 1.1.1 ready. bird> show ospf neighbor ospf1: Router ID Pri State DTime Router IP Interface 192.168.3.10 1 full/dr 00:38 192.168.3.10 ra_sta0 bird> show route 192.168.1.0/24 dev eth0 [ospf1 01:25] I (150/10) 192.168.3.0/24 dev ra_sta0 [ospf1 01:26] I (150/10) 192.168.4.0/24 dev ra_ap0 [ospf1 01:25] I (150/10) 192.168.5.0/24 via 192.168.3.10 on ra_sta0 [ospf1 01:26] I (150/20) bird> show ospf topology area 0.0.0.0 router 192.168.1.1 network 192.168.3.0/24 metric 10 stubnet 192.168.1.0/24 metric 10 stubnet 192.168.4.0/24 metric 10 router 192.168.3.10 network 192.168.3.0/24 metric 10 stubnet 192.168.4.0/24 metric 10 stubnet 192.168.5.0/24 metric 10 network 192.168.3.0/24 dr 192.168.3.10 router 192.168.3.10 router 192.168.1.1 bird> Node 2 - ifconfig ------------------ root@OpenWrt:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:03:47:DF:33:A8 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) ra_ap0 Link encap:Ethernet HWaddr 00:0E:8E:20:2B:18 inet addr:192.168.3.10 Bcast:192.168.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1280530 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:153965150 (146.8 MiB) TX bytes:170985030 (163.0 MiB) Interrupt:28 ra_ap1 Link encap:Ethernet HWaddr 00:0E:8E:1A:AD:96 inet addr:192.168.4.10 Bcast:192.168.4.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:249 (249.0 B) TX bytes:46040 (44.9 KiB) Interrupt:27 ra_ap2 Link encap:Ethernet HWaddr 00:0E:8E:1A:AF:00 inet addr:192.168.5.10 Bcast:192.168.5.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:39 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4021 (3.9 KiB) TX bytes:46128 (45.0 KiB) Interrupt:26 Node 2 - bird.conf ------------------ log "/lib/bird.log" { error }; protocol kernel { persist; scan time 20; export all; } protocol device { scan time 10; } protocol ospf { export all; import all; area 0.0.0.0 { interface "eth0"; interface "ra_ap0"; interface "ra_ap1"; interface "ra_ap2"; }; } Node 2 - birdc output --------------------- BIRD 1.1.1 ready. bird> show ospf neighbor ospf1: Router ID Pri State DTime Router IP Interface 192.168.1.1 1 full/bdr 00:38 192.168.3.20 ra_ap0 bird> show route 192.168.3.0/24 dev ra_ap0 [ospf1 11:11] I (150/10) 192.168.4.0/24 dev ra_ap1 [ospf1 11:10] I (150/10) 192.168.5.0/24 dev ra_ap2 [ospf1 11:10] I (150/10) bird> show ospf topology area 0.0.0.0 router 192.168.1.1 stubnet 192.168.1.0/24 metric 10 stubnet 192.168.4.0/24 metric 10 stubnet 192.168.3.0/24 metric 10 router 192.168.3.10 network 192.168.3.0/24 metric 10 stubnet 192.168.4.0/24 metric 10 stubnet 192.168.5.0/24 metric 10 network 192.168.3.0/24 dr 192.168.3.10 router 192.168.3.10 router 192.168.1.1 bird>