S5#sh run | b router
router ospf 1
 router-id 5.5.5.5
 log-adjacency-changes
 no discard-route external
 area 51 nssa
 summary-address 200.1.0.0 255.255.252.0
 summary-address 217.57.0.0 255.255.0.0
 redistribute connected
 redistribute rip subnets tag 5
 network 208.28.1.0 0.0.0.255 area 51
!