浮动路由

《网络与技术应用》

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第（八）章-实验报告

实

验

任

务

浮动路由

详

细

实

验

步

骤

1．基本配置

r1(config)#no ip domain-lo

r1(config)#line con 0

r1(config-line)#no exec-t

r1(config-line)#logg s

r1(config-line)#

r1(config-line)#exit

r1(config)#int e1/0

r1(config-if)#ip add 12.0.0.1 255.255.255.0

r1(config-if)#no sh

r1(config-if)#int e1/2

r1(config-if)#ip add 12.0.1.1 255.255.255.0

r1(config-if)#no sh

r1(config)#int e1/1

r1(config-if)#ip add 14.0.0.1 255.255.255.0

r1(config-if)#no sh

r1(config-if)#router rip

r1(config-router)#version 2

r1(config-router)#net 12.0.0.0

r1(config-router)#net 12.0.1.0

r1(config-router)#net 14.0.0.0

r1(config-router)#exit

r1(config-if)#^Z

r2(config)#no ip domain-lo

r2(config)#line con 0

r2(config-line)#no exec-t

r2(config-line)#logg s

r2(config-line)#

r2(config-line)#exit

r2(config)#int e2/0

r2(config-if)#ip add 12.0.0.2 255.255.255.0

r2(config-if)#no sh

r2(config-if)#int e2/1

r2(config-if)#ip add 12.0.1.2 255.255.255.0

r2(config-if)#no sh

r2(config-if)#int e2/3

r2(config-if)#ip add 23.0.0.2 255.255.255.0

r2(config-if)#no sh

r2(config-if)#router rip

r2(config-router)#version 2

r2(config-router)#net 12.0.0.0

r2(config-router)#net 12.0.1.0

r2(config-router)#net 23.0.0.

r2(config-router)#net 23.0.0.0

r2(config-router)#^Z

r2#

r3(config)#no ip domain-lo

r3(config)#line con 0

r3(config-line)#no exec-t

r3(config-line)#logg s

r3(config-line)#exit

r3(config)#no ip routing ——————关闭路由功能，将其模拟成主机

r3(config)#int e3/2

r3(config-if)#ip add 23.0.0.3 255.255.255.0

r3(config-if)#no sh

r4(config)#no ip domain-lo

r4(config)#line con 0

r4(config-line)#no exec-t

r4(config-line)#logg s

r4(config-line)#exit

r4(config)#int e0/0

r4(config-if)#ip add 14.0.0.4 255.255.255.0

r4(config-if)#no sh

r4(config)#no ip routing

r4(config)#

2．查看路由表

r1#show ip rout

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

R 23.0.0.0/8 [120/1] via 12.0.1.2, 00:00:04, Ethernet1/2

[120/1] via 12.0.0.2, 00:00:18, Ethernet1/0

12.0.0.0/24 is subnetted, 2 subnets

C 12.0.0.0 is directly connected, Ethernet1/0

C 12.0.1.0 is directly connected, Ethernet1/2

14.0.0.0/24 is subnetted, 1 subnets

C 14.0.0.0 is directly connected, Ethernet1/1

r2#show ip rout

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

23.0.0.0/24 is subnetted, 1 subnets

C 23.0.0.0 is directly connected, Ethernet2/3

12.0.0.0/24 is subnetted, 2 subnets

C 12.0.0.0 is directly connected, Ethernet2/0

C 12.0.1.0 is directly connected, Ethernet2/1

R 14.0.0.0/8 [120/1] via 12.0.1.1, 00:00:18, Ethernet2/1

[120/1] via 12.0.0.1, 00:00:00, Ethernet2/0

r2#conf t

3．测试连通性

R3#ping 14.0.0.4

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 14.0.0.4, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 52/80/116 ms

R4#ping 23.0.0.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 23.0.0.3, timeout is 2 seconds:

.!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 40/65/84 ms

4．配置浮动路由

r1(config)#ip route 23.0.0.0 255.255.255.0 12.0.0.2 100

r2(config)#ip route 14.0.0.0 255.255.255.0 12.0.0.1 100

注意浮动路由的配置命令，在静态路由后面加一个0~255的管理距离

5．查看路由表

r1#clear ip route *————清除路由表

r1#show ip rout

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

R 23.0.0.0/8 [120/1] via 12.0.1.2, 00:00:02, Ethernet1/2

[120/1] via 12.0.0.2, 00:00:00, Ethernet1/0

12.0.0.0/24 is subnetted, 2 subnets

C 12.0.0.0 is directly connected, Ethernet1/0

C 12.0.1.0 is directly connected, Ethernet1/2

14.0.0.0/24 is subnetted, 1 subnets

C 14.0.0.0 is directly connected, Ethernet1/1

r2#clear ip route *————清除路由表

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

23.0.0.0/24 is subnetted, 1 subnets

C 23.0.0.0 is directly connected, Ethernet2/3

12.0.0.0/24 is subnetted, 2 subnets

C 12.0.0.0 is directly connected, Ethernet2/0

C 12.0.1.0 is directly connected, Ethernet2/1

R 14.0.0.0/8 [120/1] via 12.0.1.1, 00:00:02, Ethernet2/1

[120/1] via 12.0.0.1, 00:00:02, Ethernet2/0

会发现，r1，r2上都没有刚才写的浮动路由，只有当rip协议down了之后，才能在路由表了看见指一条静态路由

6．关闭rip

r1(config)#no router rip

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

23.0.0.0/24 is subnetted, 1 subnets

S 23.0.0.0 [100/0] via 12.0.0.2

[100/0] via 12.0.0.0

12.0.0.0/24 is subnetted, 2 subnets

C 12.0.0.0 is directly connected, Ethernet1/0

C 12.0.1.0 is directly connected, Ethernet1/2

14.0.0.0/24 is subnetted, 1 subnets

C 14.0.0.0 is directly connected, Ethernet1/1

r1#

结

果

验

证

所有试验结果验证都附有截图。

问

题

及

分

析

试验过程中操作及验证没发现问题。

本文标题：浮动路由
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