OSPF的高級應用之rip！（CISCO)

案例二：

1. 做業要求:

<1 實現運行ospf協議與運行rip協議的網絡之間的通訊

方法：路由重分發 注入默認路由

<2配置末梢區域

<3 配置徹底末梢區域

2. 拓撲圖

3. 設備配置以下:

R1(config)#line console 0

R1(config-line)#logging SYNchronous

R1(config-line)#exec-timeout 0 0

R1(config)#int s1/0

R1(config-if)#ip add 192.168.2.1 255.255.255.0

R1(config-if)#no shut

R1(config-if)#int loopback 1

R1(config-if)#ip add 192.168.1.1 255.255.255.0

R1(config)#router ospf 223

R1(config-router)#network 192.168.1.0 0.0.0.255 area 1

R1(config-router)#network 192.168.2.0 0.0.0.255 area 1

R2(config)#int s1/0

R2(config-if)#ip add 192.168.2.2 255.255.255.0

R2(config-if)#no shut

R2(config-if)#int s1/1

R2(config-if)#ip add 192.168.3.1 255.255.255.0

R2(config-if)#no shut

R2(config-router)#int s1/3

R2(config-if)#ip add 192.168.6.1 255.255.255.0

R2(config-if)#no shut

R2(config-if)#router ospf 223

R2(config-router)#net 192.168.2.0 0.0.0.255 area 1

R2(config-router)#net 192.168.3.0 0.0.0.255 area 0

R2(config-if)#router rip

R2(config-router)#network 192.168.6.0

R3(config)#int s1/1

R3(config-if)#ip add 192.168.3.2 255.255.255.0

R3(config-if)#no shut

R3(config-if)#int s1/2

R3(config-if)#ip add 192.168.4.1 255.255.255.0

R3(config-if)#no shut

R3(config)#router ospf 223

R3(config-router)#network 192.168.3.0 0.0.0.255 area 0

R3(config-router)#network 192.168.4.0 0.0.0.255 area 2

R4(config)#int s1/2

R4(config-if)#ip add 192.168.4.2 255.255.255.0

R4(config-if)#no shut

R4(config-if)#int lo 1

R4(config-if)#ip add 192.168.5.1 255.255.255.0

R4(config)#router ospf 223

R4(config-router)#net 192.168.4.0 0.0.0.255 area 2

R4(config-router)#net 192.168.5.0 0.0.0.255 area 2

R5(config)#int s1/3

R5(config-if)#ip add 192.168.6.2 255.255.255.0

R5(config-if)#no shut

R5(config-if)#int f0/0

R5(config-if)#ip add 192.168.7.1 255.255.255.0

R5(config-if)#no shut

R5(config-if)#router rip

R5(config-router)#network 192.168.6.0

R5(config-router)#network 192.168.7.0

R6(config)#int f0/0

R6(config-if)#ip add 192.168.7.2 255.255.255.0

R6(config-if)#no shut

R6(config-if)#int lo 1

R6(config-if)#ip add 192.168.8.1 255.255.255.0

R6(config-if)#router rip

R6(config-router)#network 192.168.7.0

R6(config-router)#network 192.168.8.0

R4查看路由表:

C 192.168.4.0/24 is directly connected, Serial1/2

C 192.168.5.0/24 is directly connected, Loopback1

192.168.1.0/32 is subnetted, 1 subnets

O IA 192.168.1.1 [110/193] via 192.168.4.1, 00:12:37, Serial1/2

O IA 192.168.2.0/24 [110/192] via 192.168.4.1, 00:12:37, Serial1/2

O IA 192.168.3.0/24 [110/128] via 192.168.4.1, 00:12:37, Serial1/2

R4#

R1查看路由表:

O IA 192.168.4.0/24 [110/192] via 192.168.2.2, 00:15:08, Serial1/0

192.168.5.0/32 is subnetted, 1 subnets

O IA 192.168.5.1 [110/193] via 192.168.2.2, 00:14:22, Serial1/0

C 192.168.1.0/24 is directly connected, Loopback1

C 192.168.2.0/24 is directly connected, Serial1/0

O IA 192.168.3.0/24 [110/128] via 192.168.2.2, 00:21:35, Serial1/0

路由重分發:

R2(config)#router ospf 223

R2(config-router)#redistribute rip metric 200

% Only classful networks will be redistributed

O E2 192.168.8.0/24 [110/200] via 192.168.4.1, 00:00:03, Serial1/2

C 192.168.4.0/24 is directly connected, Serial1/2

C 192.168.5.0/24 is directly connected, Loopback1

O E2 192.168.6.0/24 [110/200] via 192.168.4.1, 00:00:03, Serial1/2

O E2 192.168.7.0/24 [110/200] via 192.168.4.1, 00:00:03, Serial1/2

192.168.1.0/32 is subnetted, 1 subnets

O IA 192.168.1.1 [110/193] via 192.168.4.1, 00:17:24, Serial1/2

O IA 192.168.2.0/24 [110/192] via 192.168.4.1, 00:17:24, Serial1/2

O IA 192.168.3.0/24 [110/128] via 192.168.4.1, 00:17:25, Serial1/2

R4#

4. 路由重分發：

單向重分發不能ping通

R4#ping 192.168.7.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.7.2, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

(因爲OSPF用於大型網絡，流量比較大，傳過來的數據沒法承受，因此，在rip中注入默認路由)

R2(config)#router rip

R2(config-router)#default-information originate

R6#show ip route

C 192.168.8.0/24 is directly connected, Loopback1

R 192.168.6.0/24 [120/1] via 192.168.7.1, 00:00:01, FastEthernet0/0

C 192.168.7.0/24 is directly connected, FastEthernet0/0

R* 0.0.0.0/0 [120/2] via 192.168.7.1, 00:00:01, FastEthernet0/0

R6#ping 192.168.5.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.5.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 44/62/76 ms

雙向都重分發：

R4#ping 192.168.7.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.7.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 60/76/100 ms

R3(config)#router ospf 223

R3(config-router)#area 2 stub

R4(config)#router ospf 223

R4(config-router)#area 2 stub

R4#show ip route

C 192.168.4.0/24 is directly connected, Serial1/2

C 192.168.5.0/24 is directly connected, Loopback1

192.168.1.0/32 is subnetted, 1 subnets

O IA 192.168.1.1 [110/193] via 192.168.4.1, 00:00:17, Serial1/2

O IA 192.168.2.0/24 [110/192] via 192.168.4.1, 00:00:17, Serial1/2

O IA 192.168.3.0/24 [110/128] via 192.168.4.1, 00:00:17, Serial1/2

O*IA 0.0.0.0/0 [110/65] via 192.168.4.1, 00:00:17, Serial1/2

R4#ping 192.168.8.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.8.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 68/91/124 ms

配置徹底末梢區域：

R3(config)#router ospf 223

R3(config-router)#area 2 stub no-summary

R4#show ip route

C 192.168.4.0/24 is directly connected, Serial1/2

C 192.168.5.0/24 is directly connected, Loopback1

O*IA 0.0.0.0/0 [110/65] via 192.168.4.1, 00:02:58, Serial1/2