router ospf 10
 router-id 6.6.6.6
 log-adjacency-changes
 area 10 filter-list prefix core_dist_out out
 network 6.6.6.6 0.0.0.0 area 0
 network 192.168.1.2 0.0.0.0 area 10
 network 192.168.1.10 0.0.0.0 area 20
 network 192.168.1.17 0.0.0.0 area 0
!
no ip http server
no ip http secure-server
ip classless
ip route 9.9.9.9 255.255.255.255 Tunnel10
ip route 10.84.85.2 255.255.255.255 10.84.84.2
!
!
!
ip prefix-list core_dist_out seq 10 permit 7.7.7.7/32
ip prefix-list core_dist_out seq 20 permit 6.6.6.6/32
ip prefix-list core_dist_out seq 30 deny 192.168.0.0/16
ip prefix-list core_dist_out seq 40 deny 9.9.9.9/32
access-list 101 permit gre host 10.84.85.1 host 10.84.84.3
access-list 102 permit gre host 10.84.85.1 host 10.84.85.2
access-list 103 permit gre host 10.84.85.1 host 10.84.84.4