OSPF totally stub LAB
Router portland should not receive any external or inter area route , only receive default route. Router Lynaic can learning all OSPF route.
Complete configuration
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Portland#sh run
Building configuration...
Current configuration : 1117 bytes
!
upgrade fpd auto
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Portland
!
interface Serial1/0
ip address 192.168.4.5 255.255.255.252
!
router ospf 1
log-adjacency-changes
area 1 stub
network 192.168.4.4 0.0.0.3 area 1
!
Portland#
=====================================
Amani#sh run
!
hostname Amani
!
interface Serial1/0
ip address 192.168.72.6 255.255.255.252
!
interface Serial1/1
ip address 192.168.4.6 255.255.255.252
!
router ospf 1
log-adjacency-changes
area 1 stub no-summary
network 192.168.4.4 0.0.0.3 area 1
network 192.168.72.4 0.0.0.3 area 0
!
Amani#
=====================================
Lynaic#sh run
!
hostname Lynaic
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Serial1/1
ip address 192.168.72.5 255.255.255.252
!
router ospf 1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 2
network 192.168.72.4 0.0.0.3 area 0
!
Lynaic#
=====================================
Portland#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 192.168.4.6 to network 0.0.0.0
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.4 is directly connected, Serial1/0
O*IA 0.0.0.0/0 [110/65] via 192.168.4.6, 00:53:28, Serial1/0
Portland#
=====================================
Lynaic#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
192.168.72.0/30 is subnetted, 1 subnets
C 192.168.72.4 is directly connected, Serial1/1
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
192.168.4.0/30 is subnetted, 1 subnets
O IA 192.168.4.4 [110/128] via 192.168.72.6, 00:54:11, Serial1/1
Lynaic#
=====================================
Amani#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
192.168.72.0/30 is subnetted, 1 subnets
C 192.168.72.4 is directly connected, Serial1/0
1.0.0.0/32 is subnetted, 1 subnets
O IA 1.1.1.1 [110/65] via 192.168.72.5, 01:07:22, Serial1/0
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.4 is directly connected, Serial1/1
Amani#
=====================================
