R3#sh ip route

40.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 40.1.1.0/24 is directly connected, FastEthernet0/0

O 40.1.1.4/32 [110/10] via 40.1.1.4, 00:18:24, FastEthernet0/0

135.1.0.0/32 is subnetted, 1 subnets

O 135.1.1.4 [110/11] via 40.1.1.4, 00:18:24, FastEthernet0/0

R3#wr t

hostname R3

interface FastEthernet0/0

ip address 40.1.1.3 255.255.255.0

ip ospf network point-to-multipoint non-broadcast

router ospf 1

log-adjacency-changes

network 40.1.1.3 0.0.0.0 area 10

neighbor 40.1.1.4 cost 10

====================================

R4#sh ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

40.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 40.1.1.0/24 is directly connected, Ethernet0/0

O 40.1.1.3/32 [110/10] via 40.1.1.3, 00:22:28, Ethernet0/0

135.1.0.0/32 is subnetted, 1 subnets

C 135.1.1.4 is directly connected, Loopback0

R4#wr t

hostname R4

interface Loopback0

ip address 135.1.1.4 255.255.255.255

!

interface Ethernet0/0

ip address 40.1.1.4 255.255.255.0

ip ospf network point-to-multipoint non-broadcast

!

router ospf 1

log-adjacency-changes

network 40.1.1.4 0.0.0.0 area 10

network 135.1.1.4 0.0.0.0 area 10

neighbor 40.1.1.3