Hello I have some difficulties in writing filters. Our company have few IP-tunnels with another company, something like protocol static { .... route 10.1.1.0/24 via 192.168.100.2 .... Everything works fine, but people using the same provider links says that they see my private routes (bird configured for RIP) distributed over network. For them it`s just like garbage :) It`s important routes only for me :) So I need to write a filter for this routes. I`ve written something like this: in /etc/bird.conf ... filter hide_private_routes { if net ~ 10.16.0.0/16 then reject; else if net ~ 10.20.0.0/16 then reject; else if net ~ 10.22.0.0/16 then reject; else if net ~ 10.30.0.0/16 then reject; else if net ~ 10.135.200.0/24 then reject; else accept; } ... protocol rip eXoft_RIP { ... export filter hide_private_routes; ... } Am I correct?