debug protocols all; debug channels all; log "bird.log" all; ipv4 table aggregated; protocol device {} #router id 1; attribute int distinguisher; protocol static { ipv4 { import filter { distinguisher = 9; accept; }; }; route 10.100.0.0/16 unreachable; } protocol aggregator { table master4; peer table aggregated; export filter { print net; accept; }; aggregate on distinguisher, net; merge by { accept; }; # defualt route unrechable; }