实验任务和目标：

任务1.按照实验要求连接网络拓扑

任务2.完成网络基本IP配置，环回接口IP，测试直连网络连通性

任务3.配置OSPF路由【需要指定ROUTER-ID】

任务4.用SNIFFER抓包，分析OSPF邻居关系建立过程

实验操作过程及配置说明：

任务一、

从左到右依次为：R1 、R2、SW1、R3

Router1 S0/0 <----> Router2 S0/0 
Router2 F1/0 <----> Switch1 F0/1 
Switch1 F0/0 <----> Router3 F0/0 
Switch1 F0/2 <----> XPC P0/1

R1：   S0/0    IP   192.169.10.1/24

       LO 0    IP   10.1.1.1/24

R2:    S0/0     IP    192.168.10.2/24

       F1/0     IP    192.168.20.1/24

       LO 0     IP    20.1.1.1/24

R3:    F0/0     IP    192.168.20.2/24

       LO 0     IP    30.1.1.1/24

Sniffer  pc     IP    192.168.20.3/24

交换机不用配置

任务二、

R1配置：

r1(config)#int lo0

r1(config-if)#ip add 10.1.1.1 255.255.255.0

r1(config-if)#no shut

r1(config-if)#exit

r1(config)#int s0/0

r1(config-if)#ip add 192.168.10.1 255.255.255.0

r1(config-if)#no shut

r1(config-if)#exit

R2配置：

r2(config)#int s0/0

r2(config-if)#ip add 192.168.10.2 255.255.255.0

r2(config-if)#no shut

r2(config-if)#exit

r2(config)#int f1/0

r2(config-if)#ip add 192.168.20.1 255.255.255.0

r2(config-if)#no shut

r2(config-if)#exit

r2(config)#int lo0

r2(config-if)#ip add 20.1.1.1 255.255.255.0

r2(config-if)#no shut

r2(config-if)#exit

R3配置：

r3(config)#int f0/0

r3(config-if)#no switchport

r3(config-if)#ip add 192.168.20.2 255.255.255.0

r3(config-if)#no shut

r3(config-if)#exit

r3(config)#int lo0

r3(config-if)#ip add 30.1.1.1 255.255.255.0

r3(config-if)#no shut

r3(config-if)#end

r1#ping 10.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

r1#ping 192.168.10.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/71/160 ms

r1#ping 192.168.10.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.10.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 8/34/60 ms

r3#ping 192.168.20.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.20.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

r3#ping 192.168.20.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.20.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/48/88 ms

r3#ping 30.1.1.1   

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 30.1.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

任务三：

r1(config)#router ospf 10

r1(config-router)#router-id 1.1.1.1

r1(config-router)#network 192.168.10.1 0.0.0.0 area 0

r1(config-router)#network 10.1.1.1 0.0.0.0 area 0

r2(config)#router ospf 10

r2(config-router)#router-id 2.2.2.2

r2(config-router)#network 192.168.10.2 0.0.0.0 area 0

r2(config-router)#network 192.168.20.1 0.0.0.0 area 0

r2(config-router)#network 20.1.1.1 0.0.0.0 area 0

r3(config)#router ospf 10

r3(config-router)#router-id 3.3.3.3

r3(config-router)#network 192.168.20.2 0.0.0.0 area 0

r3(config-router)#network 30.1.1.1 0.0.0.0 area 0

r1#show 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

     20.0.0.0/32 is subnetted, 1 subnets

O       20.1.1.1 [110/65] via 192.168.10.2, 00:01:16, Serial0/0

C    192.168.10.0/24 is directly connected, Serial0/0

O    192.168.20.0/24 [110/65] via 192.168.10.2, 00:01:16, Serial0/0

     10.0.0.0/24 is subnetted, 1 subnets

C       10.1.1.0 is directly connected, Loopback0

     30.0.0.0/32 is subnetted, 1 subnets

O       30.1.1.1 [110/66] via 192.168.10.2, 00:01:16, Serial0/0

r2#show 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

     20.0.0.0/24 is subnetted, 1 subnets

C       20.1.1.0 is directly connected, Loopback0

C    192.168.10.0/24 is directly connected, Serial0/0

C    192.168.20.0/24 is directly connected, FastEthernet1/0

     10.0.0.0/32 is subnetted, 1 subnets

O       10.1.1.1 [110/65] via 192.168.10.1, 00:01:28, Serial0/0

     30.0.0.0/32 is subnetted, 1 subnets

O       30.1.1.1 [110/2] via 192.168.20.2, 00:01:28, FastEthernet1/0

r3#show 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

     20.0.0.0/32 is subnetted, 1 subnets

O       20.1.1.1 [110/2] via 192.168.20.1, 00:01:41, FastEthernet0/0

O    192.168.10.0/24 [110/65] via 192.168.20.1, 00:01:41, FastEthernet0/0

C    192.168.20.0/24 is directly connected, FastEthernet0/0

     10.0.0.0/32 is subnetted, 1 subnets

O       10.1.1.1 [110/66] via 192.168.20.1, 00:01:41, FastEthernet0/0

     30.0.0.0/24 is subnetted, 1 subnets

C       30.1.1.0 is directly connected, Loopback0

3.24上午