OSPF Route Filtering Exercise 2

Answer
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R1#
!
router ospf 1
 log-adjacency-changes
 no auto-cost
 network 10.1.12.1 0.0.0.0 area 0
 network 10.1.15.1 0.0.0.0 area 15
 network 10.1.21.1 0.0.0.0 area 0
 distribute-list 1 in FastEthernet0/0
 distribute-list 2 in FastEthernet2/0
!
!
access-list 1 deny   3.3.3.3
access-list 1 permit any
access-list 2 deny   4.4.4.4
access-list 2 permit any
!