blackhole default
blackhole 10.0.0.0/24 proto XXXX metric 20
10.1.0.0/24 via 192.168.211.254 dev r1-eth1 proto XXXX metric 20
10.2.0.0/24 via 192.168.210.254 dev r1-eth0 proto XXXX metric 20
10.3.0.0/24 via 192.168.212.254 dev r1-eth2 proto XXXX metric 20
192.168.210.0/24 dev r1-eth0 proto XXXX scope link src 192.168.210.1 
