West_Office1#sh ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
R 172.16.252.0 [120/1] via 172.16.2.3, 00:00:19, FastEthernet0/1
R 172.16.253.0 [120/1] via 172.16.254.2, 00:00:08, FastEthernet0/0
[120/1] via 172.16.2.3, 00:00:19, FastEthernet0/1
C 172.16.254.0 is directly connected, FastEthernet0/0
R 172.16.251.0 [120/2] via 172.16.254.2, 00:00:08, FastEthernet0/0
[120/2] via 172.16.2.3, 00:00:19, FastEthernet0/1
R 172.16.6.0 [120/1] via 172.16.254.2, 00:00:09, FastEthernet0/0
C 172.16.2.0 is directly connected, FastEthernet0/1
R 172.16.3.0 [120/1] via 172.16.2.3, 00:00:20, FastEthernet0/1
West Office 2:
West_Office2#sh ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
R 172.16.252.0 [120/1] via 172.16.253.3, 00:00:23, Serial0/0
[120/1] via 172.16.6.4, 00:00:19, FastEthernet0/1
C 172.16.253.0 is directly connected, Serial0/0
C 172.16.254.0 is directly connected, FastEthernet0/0
R 172.16.251.0 [120/1] via 172.16.6.4, 00:00:19, FastEthernet0/1
C 172.16.6.0 is directly connected, FastEthernet0/1
R 172.16.2.0 [120/1] via 172.16.254.1, 00:00:00, FastEthernet0/0
[120/1] via 172.16.253.3, 00:00:24, Serial0/0
R 172.16.3.0 [120/1] via 172.16.253.3, 00:00:24, Serial0/0
Central Office:
Central_Office#sh ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
C 172.16.252.0 is directly connected, Serial0/1
C 172.16.253.0 is directly connected, Serial0/0
R 172.16.254.0 [120/1] via 172.16.253.2, 00:00:03, Serial0/0
[120/1] via 172.16.2.1, 00:00:20, FastEthernet0/1
R 172.16.251.0 [120/1] via 172.16.252.4, 00:00:21, Serial0/1
[120/1] via 172.16.3.5, 00:00:27, FastEthernet0/0
R 172.16.6.0 [120/1] via 172.16.253.2, 00:00:03, Serial0/0
[120/1] via 172.16.252.4, 00:00:22, Serial0/1
C 172.16.2.0 is directly connected, FastEthernet0/1
C 172.16.3.0 is directly connected, FastEthernet0/0
East Office 2:
East_Office2#sh ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
C 172.16.252.0 is directly connected, Serial0/1
R 172.16.253.0 [120/1] via 172.16.252.3, 00:00:15, Serial0/1
[120/1] via 172.16.6.2, 00:00:06, FastEthernet0/1
R 172.16.254.0 [120/1] via 172.16.6.2, 00:00:06, FastEthernet0/1
C 172.16.251.0 is directly connected, FastEthernet0/0
C 172.16.6.0 is directly connected, FastEthernet0/1
R 172.16.2.0 [120/1] via 172.16.252.3, 00:00:15, Serial0/1
R 172.16.3.0 [120/1] via 172.16.252.3, 00:00:16, Serial0/1
[120/1] via 172.16.251.5, 00:00:17, FastEthernet0/0
East Office 1:
East_Office1#sh ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 7 subnets
R 172.16.252.0 [120/1] via 172.16.251.4, 00:00:18, FastEthernet0/0
[120/1] via 172.16.3.3, 00:00:02, FastEthernet0/1
R 172.16.253.0 [120/1] via 172.16.3.3, 00:00:02, FastEthernet0/1
R 172.16.254.0 [120/2] via 172.16.251.4, 00:00:18, FastEthernet0/0
[120/2] via 172.16.3.3, 00:00:02, FastEthernet0/1
C 172.16.251.0 is directly connected, FastEthernet0/0
R 172.16.6.0 [120/1] via 172.16.251.4, 00:00:20, FastEthernet0/0
R 172.16.2.0 [120/1] via 172.16.3.3, 00:00:03, FastEthernet0/1
C 172.16.3.0 is directly connected, FastEthernet0/1
Migrating to OSPF progressively:
West Office 1:
West_Office1#sh run | s router ospf 1
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 10
network 172.16.2.1 0.0.0.0 area 10
network 172.16.254.1 0.0.0.0 area 10
distance 200
West_Office1#sh run | s int
interface Loopback1
ip address 1.1.1.1 255.255.255.255
interface FastEthernet0/0
ip address 172.16.254.1 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
interface FastEthernet0/1
ip address 172.16.2.1 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
West Office 2:
West_Office2(config-if)#do sh run | s int
interface Loopback2
ip address 2.2.2.2 255.255.255.255
interface FastEthernet0/0
ip address 172.16.254.2 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
interface Serial0/0
ip address 172.16.253.2 255.255.255.0
ip ospf priority 0
no fair-queue
interface FastEthernet0/1
ip address 172.16.6.2 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
West_Office2#sh run | s router ospf 1
router ospf 1
router-id 2.2.2.2
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 10
network 172.16.6.2 0.0.0.0 area 10
network 172.16.253.2 0.0.0.0 area 10
network 172.16.254.2 0.0.0.0 area 10
distance 200
Central Office:
Central_Office#sh run | s int
interface FastEthernet0/0
ip address 172.16.3.3 255.255.255.0
ip ospf priority 100
duplex auto
speed auto
interface Serial0/0
bandwidth 512
ip address 172.16.253.3 255.255.255.0
ip ospf priority 100
no fair-queue
clock rate 512000
interface FastEthernet0/1
ip address 172.16.2.3 255.255.255.0
ip ospf priority 100
duplex auto
speed auto
interface Serial0/1
bandwidth 512
ip address 172.16.252.3 255.255.255.0
ip ospf priority 100
clock rate 512000
interface Loopback3
ip address 3.3.3.3 255.255.255.255
Central_Office#sh run | s router ospf 1
router ospf 1
router-id 3.3.3.3
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 10
network 172.16.2.3 0.0.0.0 area 10
network 172.16.3.3 0.0.0.0 area 10
network 172.16.252.3 0.0.0.0 area 10
network 172.16.253.3 0.0.0.0 area 10
distance 200
East Office 2:
East_Office2#sh run | s router ospf 1
router ospf 1
router-id 4.4.4.4
log-adjacency-changes
network 4.4.4.4 0.0.0.0 area 10
network 172.16.6.4 0.0.0.0 area 10
network 172.16.251.4 0.0.0.0 area 10
network 172.16.252.4 0.0.0.0 area 10
distance 200
East_Office2#sh run | s int
interface Loopback4
ip address 4.4.4.4 255.255.255.255
interface FastEthernet0/0
ip address 172.16.251.4 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
interface FastEthernet0/1
ip address 172.16.6.4 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
interface Serial0/1
ip address 172.16.252.4 255.255.255.0
ip ospf priority 0
East Office 1:
East_Office1#sh run | s router ospf 1
router ospf 1
router-id 5.5.5.5
log-adjacency-changes
network 5.5.5.5 0.0.0.0 area 10
network 172.16.3.5 0.0.0.0 area 10
network 172.16.251.5 0.0.0.0 area 10
distance 200
East_Office1#sh run | s int
interface Loopback5
ip address 5.5.5.5 255.255.255.255
interface FastEthernet0/0
ip address 172.16.251.5 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
interface FastEthernet0/1
ip address 172.16.3.5 255.255.255.0
ip ospf priority 0
duplex auto
speed auto
[Resuming connection 1 to 2651-1 … ]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.
Success rate is 99 percent (9516/9517), round-trip min/avg/max = 4/5/152 ms
All routers have removed rip route except for West Office 1 router, 1% lost which is 1 packet lost.
West_Office1#
Gateway of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback1
2.0.0.0/32 is subnetted, 1 subnets
O 2.2.2.2 [200/102] via 172.16.2.3, 00:00:03, FastEthernet0/1
3.0.0.0/32 is subnetted, 1 subnets
O 3.3.3.3 [200/2] via 172.16.2.3, 00:00:03, FastEthernet0/1
4.0.0.0/32 is subnetted, 1 subnets
O 4.4.4.4 [200/102] via 172.16.2.3, 00:00:03, FastEthernet0/1
5.0.0.0/32 is subnetted, 1 subnets
O 5.5.5.5 [200/3] via 172.16.2.3, 00:00:03, FastEthernet0/1
172.16.0.0/24 is subnetted, 7 subnets
O 172.16.252.0 [200/101] via 172.16.2.3, 00:00:05, FastEthernet0/1
O 172.16.253.0 [200/101] via 172.16.2.3, 00:00:05, FastEthernet0/1
C 172.16.254.0 is directly connected, FastEthernet0/0
O 172.16.251.0 [200/3] via 172.16.2.3, 00:00:06, FastEthernet0/1
O 172.16.6.0 [200/102] via 172.16.2.3, 00:00:06, FastEthernet0/1
C 172.16.2.0 is directly connected, FastEthernet0/1
O 172.16.3.0 [200/2] via 172.16.2.3, 00:00:06, FastEthernet0/1
West_Office1#