1. RIP大实验背景：实验拓扑图如下：此RIP大实验用GNS3模拟器搭建环境
2. 开机后把下面的配置在全局模式下右键鼠标刷到R2里：
key chain cisco
key 1
key-string cisco
interface Loopback0
ip address 2.2.2 .2 255.255.255.255
interface Loopback1
ip address 199.172.2.254 255.255.255.0
interface Loopback2
ip address 199.172.3.254 255.255.255.0
interface Loopback3
ip address 199.172.4.254 255.255.255.0
interface Loopback4
ip address 199.172.1.254 255.255.255.0
interface Serial0/0
ip address 150.100.12.2 255.255.255.0
ip rip authentication mode md5
ip rip authentication key-chain cisco
clockrate 64000
no shutdown
router rip
version 2
network 2.0.0 .0
network 150.100.0.0
network 199.172.1.0
network 199.172.2.0
network 199.172.3.0
network 199.172.4.0
3. 按拓扑图配置路由器R1、R2、R3各个端口IP、掩码并激活：
R1(config)#int f0/0
R1(config-if)#ip add 10.1.134.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#int lo 0
R1(config-if)#ip add 192.168.1.92 255.255.255.224
R1(config-if)#no shutdown
R1(config)#int s1/0
R1(config-if)#ip add 150.100.12.1 255.255.255.0
R1(config-if)#no shutdown
R3(config)#int f0/0
R3(config-if)#ip add 10.1.134.3 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#int lo 0
R3(config-if)#ip add 3.3.3.3 255.255.255.0
R3(config-if)#no shutdown
R4(config)#int f0/0
R4(config-if)#ip add 10.1.134.4 255.255.255.0
R4(config-if)#no shutdown
R4(config-if)#int lo0
R4(config-if)#ip add 192.168.1.33 255.255.255.224
R4(config-if)#no shutdown
