Table of Contents 1 Network Topology 2
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- Navigate this page:
- Configuring OSPF on the Stoke router
- Configuring OSPF on the London router
- Viewing the routing table for the London router
- Displaying the OSPF neighbours on the London router
- Displaying the OSPF database on the London router
- Displaying OSPF on the London router’s serial 0/0/1 interface
- Displaying the routing table on the Stoke router
- Configuring OSPF on the Glasgow router
- Configuring a default static route on London
- Checking Stoke’s routing table for propagated default static route
- Checking Glasgow’s routing table for propagated default static route
Table of ContentsTable of Contents 1 Network Topology 2 Configuring OSPF on the Stoke router 3 Configuring OSPF on the London router 3 Viewing the routing table for the London router 4 Displaying the OSPF neighbours on the London router 5 Displaying the OSPF database on the London router 5 Displaying OSPF on the London router’s serial 0/0/1 interface 6 Displaying the routing table on the Stoke router 6 Configuring OSPF on the Glasgow router 7 Configuring a default static route on London 7 Propagating the default static route on London via OSPF 8 Checking Stoke’s routing table for propagated default static route 9 Checking Glasgow’s routing table for propagated default static route 10 Network TopologyPasswords: c1sco and cla$$ 
Configuring OSPF on the Stoke routerStoke Router. Authorised access only! User Access Verification Password: Stoke>enable Password: Stoke#conf t E Stoke(config)#router ospf 51 Stoke(config-router)#network 192.168.1.0 0.0.0.127 area 0 Stoke(config-router)#network 145.50.0.0 0.0.255.255 area 0 Stoke(config-router)#network 155.50.0.0 0.0.255.255 area 0 Stoke(config-router)#exit Stoke(config)#exit Stoke# %SYS-5-CONFIG_I: Configured from console by console Stoke#copy run start Destination filename [startup-config]? Building configuration... [OK]
Stoke# Configuring OSPF on the London routerLondon Router! Keep out! Authorised access only! User Access Verification Password: London>ena Password: London#conf t Enter configuration commands, one per line. End with CNTL/Z.
London(config)#router ospf 51 London(config-router)#network 192.168.1.192 0.0.0.31 area 0 London(config-router)#network 165.50.0.0 0.0.255.255 area 0 London(config-router)#network 4.0.0.0 0.255.255.255 area 0 London(config-router)#network 155.50.0.0 0.0.255.255 area 0 L London(config-router)#exit London(config)#exit London#
%SYS-5-CONFIG_I: Configured from console by console London#copy run start Destination filename [startup-config]? Building configuration... [OK]
Codes: L - local, 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, E - EGP i - IS-IS, 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 4.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 4.0.0.0/8 is directly connected, GigabitEthernet0/1 L 4.0.0.2/32 is directly connected, GigabitEthernet0/1 O 145.50.0.0/16 [110/128] via 155.50.0.2, 00:00:55, Serial0/0/0 155.50.0.0/16 is variably subnetted, 2 subnets, 2 masks C 155.50.0.0/16 is directly connected, Serial0/0/0 L 155.50.0.1/32 is directly connected, Serial0/0/0 165.50.0.0/16 is variably subnetted, 2 subnets, 2 masks C 165.50.0.0/16 is directly connected, Serial0/0/1 L 165.50.0.1/32 is directly connected, Serial0/0/1 192.168.1.0/24 is variably subnetted, 3 subnets, 3 masks O 192.168.1.0/25 [110/65] via 155.50.0.2, 00:00:55, Serial0/0/0 C 192.168.1.192/27 is directly connected, GigabitEthernet0/0 L 192.168.1.222/32 is directly connected, GigabitEthernet0/0
Neighbor ID Pri State Dead Time Address Interface 192.168.1.126 0 FULL/ - 00:00:39 155.50.0.2 Serial0/0/0 London#show ip ospf ? <1-65535> Process ID number border-routers Border and Boundary Router Information database Database summary interface Interface information neighbor Neighbor list virtual-links Virtual link information Displaying the OSPF database on the London routerL  ondon#show ip ospf database
OSPF Router with ID (192.168.1.222) (Process ID 51) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 192.168.1.222 192.168.1.222 137 0x80000005 0x002c24 5 192.168.1.126 192.168.1.126 137 0x80000004 0x002ad0 4 Displaying OSPF on the London router’s serial 0/0/1 interfaceL  ondon#show ip ospf interface serial 0/0/1
Serial0/0/1 is up, line protocol is up Internet address is 165.50.0.1/16, Area 0 Process ID 51, Router ID 192.168.1.222, Network Type POINT-TO-POINT, Cost: 64 Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0 No designated router on this network No backup designated router on this network Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Hello due in 00:00:02 Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 0 msec Suppress hello for 0 neighbor(s) Displaying the routing table on the Stoke routerStoke#sh ip route Codes: L - local, 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, E - EGP i - IS-IS, 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
145.50.0.0/16 is variably subnetted, 2 subnets, 2 masks C 145.50.0.0/16 is directly connected, Serial0/0/0 L 145.50.0.1/32 is directly connected, Serial0/0/0 155.50.0.0/16 is variably subnetted, 2 subnets, 2 masks C 155.50.0.0/16 is directly connected, Serial0/0/1 L 155.50.0.2/32 is directly connected, Serial0/0/1
192.168.1.0/24 is variably subnetted, 3 subnets, 3 masks C 192.168.1.0/25 is directly connected, GigabitEthernet0/0 L 192.168.1.126/32 is directly connected, GigabitEthernet0/0 O 192.168.1.192/27 [110/65] via 155.50.0.1, 00:03:40, Serial0/0/1 Stoke#
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nter configuration commands, one per line. End with CNTL/Z.
ondon(config-router)#
ondon#show ip ospf neighbor
nter configuration commands, one per line. End with CNTL/Z.
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Configuring OSPF |
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