R1#sh run | b interface Serial0/0.1
interface Serial0/0.1 point-to-point
 bandwidth 128
 ip address 208.28.1.1 255.255.255.248
 ip ospf network non-broadcast
 ip ospf priority 0
 frame-relay interface-dlci 103
!
interface Serial0/0.2 point-to-point
 bandwidth 128
 ip address 180.40.7.66 255.255.255.224
 ip ospf authentication-key bosco
 frame-relay interface-dlci 102
!
!
router ospf 1
 router-id 1.1.1.1
 log-adjacency-changes
 auto-cost reference-bandwidth 1000
 area 0 authentication
 area 51 nssa no-summary
 area 51 default-cost 10
 area 200 virtual-link 3.3.3.3 authentication-key bosco
 redistribute connected subnets
 network 11.11.11.11 0.0.0.0 area 51
 network 180.40.7.66 0.0.0.0 area 0
 network 208.28.1.1 0.0.0.0 area 200
 network 208.28.1.66 0.0.0.0 area 51


R2#sh run | b interface Serial1/0.1
interface Serial1/0.1 multipoint
 ip address 208.28.1.3 255.255.255.248
 ip ospf network non-broadcast
 ip ospf priority 0
 frame-relay map ip 208.28.1.2 203 broadcast
!
interface Serial1/0.2 multipoint
 ip address 180.40.7.65 255.255.255.224
 ip ospf authentication-key bosco
 ip ospf network point-to-point
 frame-relay interface-dlci 201
!
!
router ospf 1
 router-id 2.2.2.2
 log-adjacency-changes
 auto-cost reference-bandwidth 1000
 area 0 authentication
 area 51 nssa no-summary
 area 200 virtual-link 3.3.3.3 authentication-key bosco
 redistribute connected subnets
 network 22.22.22.22 0.0.0.0 area 51
 network 180.40.7.2 0.0.0.0 area 200
 network 180.40.7.65 0.0.0.0 area 0
 network 202.2.2.2 0.0.0.0 area 200
 network 208.28.1.3 0.0.0.0 area 200
 network 208.28.1.129 0.0.0.0 area 51
!

R3#sh run | b router
router ospf 1
 router-id 3.3.3.3
 log-adjacency-changes
 auto-cost reference-bandwidth 1000
 area 0 authentication
 area 200 virtual-link 2.2.2.2 authentication-key bosco
 area 200 virtual-link 1.1.1.1 authentication-key bosco
 redistribute connected subnets
 network 17.80.1.1 0.0.0.0 area 51
 network 180.40.7.3 0.0.0.0 area 200
 network 208.28.1.2 0.0.0.0 area 200
 neighbor 208.28.1.1
 neighbor 208.28.1.3
!