I'm testing openbsd and routing in a basic setup. router-01 and router-02 are access routers with dynamic routing, both connect to a lan where firewall-01 resides.
Both router-01 and router-02 have a static route for the network behind firewall-01. router-01# cat /etc/hostname.em1 inet 192.168.1.226 255.255.255.224 NONE ! /sbin/ifconfig \$if description "FIREWALL LAN" ! /sbin/route add 192.168.2.0/24 192.168.1.254 router-02# cat /etc/hostname.em1 inet 192.168.1.227 255.255.255.224 NONE ! /sbin/ifconfig \$if description "FIREWALL LAN" ! /sbin/route add 192.168.2.0/24 192.168.1.254 Both routers redistribute statics and connected into bgp. bgpd.conf: network connected set localpref 200 network static set localpref 200 In this basic setup, how can I avoid router-01 from black-holing 192.168.1.224/27 and 192.168.2.0/24 if em1 goes down ? Even in the case of "ifconfig em1 down" on router-01 I see that it continues to advertise the connnected and static networks. The static I can understand as it could resolve via a recursive lookup, if openbsd does that. Regards Tony