实验要求：使用RIPv2配置路由器，使路由器能接收到所有的路由条目
拓扑如下：
配置如下：
R1
enable 进入特权模式
configure terminal 进入全局模式
interface s0/0/0 进入端口
ip address 192.168.1.1 255.255.255.0 设置IP地址
clock rate 64000 设置同步时钟
no shutdown 开启端口
interface l0 开启并进入回环
ip address 1.1.1.1 255.255.255.0
exit
router rip
network 192.168.1.0
network 1.1.1.0
no auto-summary
R2
enable
configure terminal
interface s0/0/0
ip address 192.168.1.2 255.255.255.0
no shutdown
interface s0/0/1
ip address 192.168.2.1 255.255.255.0
clock rate 64000
no shutdown
exit
router rip
network 192.168.1.0
network 192.168.2.0
no auto-summary
R3
enable
configure terminal
interface s0/0/0
ip address 192.168.3.1 255.255.255.0
clock rate 64000
no shutdown
interface s0/0/1
ip address 192.168.2.2 255.255.255.0
no shutdown
exit
router rip
network 192.168.2.0
network 192.168.3.0
no auto-summary
R4
enable
configure terminal
interface s0/0/0
ip address 192.168.3.2 255.255.255.0
no shutdown
interface l0
ip address 2.2.1.1 255.255.255.0
no shutdown
interface l1
ip address 2.2.2.1 255.255.255.0
no shutdown
interface l2
ip address 2.2.3.1 255.255.255.0
no shutdown
interface l3
ip address 2.2.4.1 255.255.255.0
no shutdown
exit
router rip
network 192.168.3.0
network 2.2.1.0
network 2.2.2.0
network 2.2.3.0
network 2.2.4.0
no auto-summary