I feel like this should be simple, but I can't find what I'm looking for... I have a few of routers spread across the country in a full mesh running OSPF. 'Servers' and 'clients' connect to these 'routers' to connect to one another- each 'server' and 'client' run a basic bird instance they use to share a local address (X.X.X.X/32). The issue is some of the 'servers' connect to multiple 'routers' so if a link between 2 routers is down, OSPF tries to route though a server... ('servers' don't have ip forwarding on) In short, how do I make sure the 'servers' can run bird to update OSPF with their /32 address but not re-propagate routes they learn from OSPF (so as to not be considered for route selection by the routers)? Forgive me if this is basic question- it feels pretty basic. Reading the documents about filters, it looks like they apply purely to route evaluation between bird and the kernel routing table, they aren't evaluated when propagating routes to other OSPF neighbors. Thanks! ryan