2.各路由器上配置完成后的 show run a.r1#show run Building configuration...
Current configuration : 645 bytes ! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname r1 ! ! www.zhishiwu.com interface Loopback0 ip address 11.11.1.1 255.255.255.0 ! interface FastEthernet0/0 ip address 172.16.123.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 10.10.1.254 255.255.255.0 duplex auto speed auto ! interface Vlan1 no ip address shutdown ! router ospf 100 log-adjacency-changes network 172.16.123.1 0.0.0.0 area 0 network 10.10.1.254 0.0.0.0 area 0 ! ip classless ! ! line con 0 line vty 0 4 login ! ! end入内容 b.r2# r2#show run Building configuration...
Current configuration : 666 bytes ! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname r2 ! ! interface Loopback0 ip address 22.22.2.2 255.255.255.0 ! interface FastEthernet0/0 ip address 172.16.123.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 10.10.2.254 255.255.255.0 duplex auto speed auto ! interface Vlan1 no ip address shutdown ! router ospf 100 router-id 22.22.2.2 log-adjacency-changes network 172.16.123.2 0.0.0.0 area 0 network 10.10.2.254 0.0.0.0 area 0 ! ip classless ! ! line con 0 line vty 0 4 login ! ! end c. www.zhishiwu.com r3# r3#show run Building configuration...
Current configuration : 645 bytes ! version 12.4 no service timestamps log datetime msec no service timestamps debug datetime msec no service password-encryption ! hostname r3 ! ! interface Loopback0 ip address 33.33.3.3 255.255.255.0 ! interface FastEthernet0/0 ip address 172.16.123.3 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 10.10.3.254 255.255.255.0 duplex auto speed auto ! interface Vlan1 no ip address shutdown ! router ospf 100 log-adjacency-changes network 172.16.123.3 0.0.0.0 area 0 network 10.10.3.254 0.0.0.0 area 0 ! ip classless ! ! line con 0 line vty 0 4 login ! ! end 3.查看邻居表、拓扑表、路由表 a.r1#show ip ospf nei
Neighbor ID Pri State Dead Time Address Interface 22.22.2.2 1 FULL/BDR 00:00:35 172.16.123.2 FastEthernet0/0 33.33.3.3 1 FULL/DROTHER 00:00:31 172.16.123.3 FastEthernet0/0 r1#show ip ospf nei
Neighbor ID Pri State Dead Time Address Interface 22.22.2.2 1 FULL/BDR 00:00:30 172.16.123.2 FastEthernet0/0 33.33.3.3 1 FULL/DROTHER 00:00:36 172.16.123.3 FastEthernet0/0 r1#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, 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
10.0.0.0/24 is subnetted, 3 subnets C 10.10.1.0 is directly connected, FastEthernet0/1 O 10.10.2.0 [110/2] via 172.16.123.2, 00:06:07, FastEthernet0/0 O 10.10.3.0 [110/2] via 172.16.123.3, 00:05:57, FastEthernet0/0 11.0.0.0/24 is subnetted, 1 subnets C 11.11.1.0 is directly connected, Loopback0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.123.0 is directly connected, FastEthernet0/0 r1#b.r2#show ip ospf nei
Neighbor ID Pri State Dead Time Address Interface 11.11.1.1 1 FULL/DR 00:00:38 172.16.123.1 FastEthernet0/0 33.33.3.3 1 FULL/DROTHER 00:00:31 172.16.123.3 FastEthernet0/0 r2#show ip ospf data OSPF Router with ID (22.22.2.2) (Process ID 100)
Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 172.16.123.1 11.11.1.1 469 0x80000004 0x00fd41 r2#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, 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
10.0.0.0/24 is subnetted, 3 subnets O 10.10.1.0 [110/2] via 172.16.123.1, 00:07:57, FastEthernet0/0 C 10.10.2.0 is directly connected, FastEthernet0/1 O 10.10.3.0 [110/2] via 172.16.123.3, 00:07:47, FastEthernet0/0 22.0.0.0/24 is subnetted, 1 subnets C 22.22.2.0 is directly connected, Loopback0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.123.0 is directly connected, FastEthernet0/0 r2#c.r3#show ip ospf nei
Neighbor ID Pri State Dead Time Address Interface 22.22.2.2 1 FULL/BDR 00:00:33 172.16.123.2 FastEthernet0/0 11.11.1.1 1 FULL/DR 00:00:37 172.16.123.1 FastEthernet0/0 r3#show ip ospf data OSPF Router with ID (33.33.3.3) (Process ID 100)
Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 172.16.123.1 11.11.1.1 540 0x80000004 0x00fd41 r3#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, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route www.zhishiwu.com Gateway of last resort is not set
10.0.0.0/24 is subnetted, 3 subnets O 10.10.1.0 [110/2] via 172.16.123.1, 00:08:59, FastEthernet0/0 O 10.10.2.0 [110/2] via 172.16.123.2, 00:08:59, FastEthernet0/0 C 10.10.3.0 is directly connected, FastEthernet0/1 33.0.0.0/24 is subnetted, 1 subnets C 33.33.3.0 is directly connected, Loopback0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.123.0 is directly connected, FastEthernet0/0 r3# 备注:在Packet Tracer环境中,如开始没有配置router-id,之后才配置loopback 0 IP地址,loopback地址不会自动成为router-id,而需要保存配置后,用reload命令重启路由器。