Verification

Verify that all OSPF routes are being advertised. rtrA#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR

Gateway of last resort is not set

1.0.0.0/32 issubnetted, 1 subnets C 1.1.1.1 is directly connected, LoopbackO

2.0.0.0/32 issubnetted, 1 subnets O 2.2.2.2 [110/65] via 10.1.1.2, 00:03:46, Serial0/1

3.0.0.0/32 issubnetted, 1 subnets O IA 3.3.3.3 [110/129] via 10.1.1.2, 00:03:46, Serial0/1

10.0.0.0/30 is subnetted, 2 subnets C 10.1.1.0 is directly connected, Serial0/1 O IA 10.1.1.4 [110/128] via 10.1.1.2, 00:03:46, Serial0/1

rtrB#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR

1.0.0.0/32 issubnetted, 1 subnets O 1.1.1.1 [110/65] via 10.1.1.1, 00:04:48, SerialO

2.0.0.0/32 issubnetted, 1 subnets C 2.2.2.2 is directly connected, LoopbackO

3.0.0.0/32 issubnetted, 1 subnets O IA 3.3.3.3 [110/65] via 10.1.1.6, 00:04:49, Seriall

10.0.0.0/30 is subnetted, 2 subnets C 10.1.1.0 is directly connected, SerialO C 10.1.1.4 is directly connected, Seriall rtrC#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR

Gateway of last resort is not set

1.0.0.0/32 issubnetted, 1 subnets O 1.1.1.1 [110/129] via 10.1.1.5, 00:05:33, SerialO

2.0.0.0/32 issubnetted, 1 subnets O 2.2.2.2 [110/65] via 10.1.1.5, 00:05:33, SerialO

3.0.0.0/24 is subnetted, 1 subnets C 3.3.3.0 is directly connected, LoopbackO

10.0.0.0/30 is subnetted, 2 subnets O 10.1.1.0 [110/128] via 10.1.1.5, 00:05:34, SerialO C 10.1.1.4 is directly connected, SerialO

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