实验名称:RIP到OSPF的无缝切换
实验人:王学光
实验环境:DynamipsGUI 2.8及c3640-is-mz.124-10
实验要求:1.在各设备上配置相应的IP地址及RIP路由协议;在R1上做ping测试。
2.在路由器R1的Lo0上长ping 路由器R4的Lo0,在不断网的前提下在R2、R3、R4上配置辅助地址并用OSPF宣告,再把R3、R4的辅助地址及RIP删掉(R2只删掉辅助地址)。
实验步骤:
Step 1
:配置各设备的IP并启RIP路由协议
1
、配置路由器R1 :
Router>enable
Router#configure terminal
Router(config)#hostname R1
R1(config)#interface fastethernet 0/0
R1(config-if)#no shutdown
R1(config-if)#ip address 192.168.10.1 255.255.255.0
R1(config-if)#exit
R1(config)#interface lookback 0
R1(config-if)#ip address 1.1.1.1 255.255.255.0
R1(config-if)#exit
R1(config)#router rip
R1(config-router)#version 2
R1(config-router)#no auto-summary
R1(config-router)#net 192.168.10.0
R1(config-router)#net 1.0.0.0
R1(config-router)#exit
R1(config)#
注:R2、R3、R4的配置方法与R1配置方法类似
2
、在R1上做ping测试
R1#ping 2.2.2.2 source 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
Packet sent with a source address of 1.1.1.1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/43/84 ms
Step 2
:配置辅助地址及启动OSPF路由协议
1、
在R2、R3、R4上配置辅助地址
R3(config)#interface fastethernet 0/0
R3(config-if)#ip address 172.16.1.2 255.255.255.0 secondary
R3(config-if)#interface fastethernet 0/0
R3(config-if)#ip address 172.16.2.1 255.255.255.0 secondary
R3(config-if)#exit
R3(config)#
注:R2、R4配置与R3配置方法类似
2、
在R2、R3、R4启ospf路由协议
R3(config)#router ospf 10
R3(config-router)#net 192.168.20.0 0.0.0.255 area 1
R3(config-router)#net 172.16.1.0 0.0.0.255 area 1
R3(config-router)#net 192.168.30.0 0.0.0.255 area 0
R3(config-router)#net 172.16.2.0 0.0.0.255 area 0
R3(config-router)#exit
R3(config)#
注:R2、R4配置方法与R3配制方法类似
3、
在R2做路由重分发
R2(config)#router ospf 10
R2(config-router)# redistribute rip metric 10
R2(config-router)#exit
R2(config)#
4
、在R1上加一条默认路由并长ping路由器R4上的Lo0:2.2.2.2
R1(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.2
R1#ping
Protocol [ip]:
Target IP address: 2.2.2.2
Repeat count [5]: 10000
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 10000, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
4、
把R3、R4上删掉RIP路由协议及辅助地址(R2只删除辅助地址)
R3(config)#no router rip
R3(config)#interface fastethernet 1/0
R3(config-if)#no ip address 172.16.1.2 255.255.255.0
R3(config-if)#interface fastethernet 0/0
R3(config-if)#no ip address 172.16.2.1 255.255.255.0
R3(config-if)#exit
R3(config)#
说明:在R3R4及R2(只删辅助地址)上删掉RIP和辅助地址后,看路由器R1长ping是否中断过,如果中断说明配制方法有误;如果无中断,测试验成功。