Good times, bird community! I'm have trouble with filter routes by "from" attribute. Routes in Bird route table have data about router which the route has originated from: 80.239.201.11/32 via 193.124.176.1 on eth1 [kernel1 2020-08-11] * (10) 10.0.0.0/30 via 10.0.0.18 on bond0 [MyOSPF 2020-11-09] * I (150/20) [172.21.1.1] 154.47.36.2/32 via 193.124.176.1 on eth1 [kernel1 2020-08-13] * (10) but if i try get that routes: show route where from = 172.21.1.1 I get empty respond without any errors. When I was add print statement to config for check which "from" attribute supplied to filter: export filter { print "route: ", net, ", ", from, ", ", proto,; accept; }; I was saw that from is 0.0.0.0: ... bird: route: 172.21.24.0/23, 0.0.0.0, MyOSPF The issue is observed with 1.4 and 1.6 bird versions. Explain me please, what i understand wrong about that?