!
hostname Router1
!
ip route 0.0.0.0/0 blackhole
ip route 192.0.2.1/32 blackhole
ip route 192.0.2.2/32 blackhole
ip route 192.0.2.3/32 blackhole
ip route 192.0.2.4/32 blackhole
ip route 192.0.2.5/32 blackhole
!
interface r1-eth0
 ip address 10.10.10.1/24
!
interface lo
 ip address 10.139.224.1/20
!
ip forwarding
ipv6 forwarding
!