导语：
RIP(Routing Information Protocol,路由信息协议）是一种内部网关协议（IGP），是一种动态路由选择协议，用于自治系统（AS）内的路由信息的传递。RIP协议基于距离矢量算法（DistanceVectorAlgorithms），使用“跳数”(即metric)来衡量到达目标地址的路由距离。
拓扑图：
步骤：
1.基本配置：
如拓扑图所示，完成各个物理设备和接口的配置，并进行连通性测试。
2.使用RIPv1搭建网络：
[R1]rip
[R1-rip-1]network 10.0.0.0
[R2]rip
[R2-rip-1]network 10.0.0.0
查看路由表（仅以R1为例）：
[R1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
10.0.1.0/24 Direct 0 0 D 10.0.1.1 LoopBack0
10.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.2.0/24 RIP 100 1 D 10.0.12.2 GigabitEthernet
0/0/0
10.0.12.0/24 Direct 0 0 D 10.0.12.1 GigabitEthernet
0/0/0
10.0.12.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
10.0.12.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
测试R1和R2的环回路由的连通性：
[R1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
10.0.1.0/24 Direct 0 0 D 10.0.1.1 LoopBack0
10.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.2.0/24 RIP 100 1 D 10.0.12.2 GigabitEthernet
0/0/0
10.0.12.0/24 Direct 0 0 D 10.0.12.1 GigabitEthernet
0/0/0
10.0.12.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
10.0.12.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
使用debug来查看RIP定期更新情况：
<R1>debugging rip 1
<R1>terminal debugging
Info: Current terminal debugging is on.
<R1>terminal monitor
Info: Current terminal monitor is on.
关闭debug：
<R1>undo debugging rip 1
3.搭建RIPv2网络：
[R1]rip
[R1-rip-1]version 2
[R2]rip
[R2-rip-1]version 2
查看R1和R2的路由表信息，这里仅以R1为例：
<R1>display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
10.0.1.0/24 Direct 0 0 D 10.0.1.1 LoopBack0
10.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack0
10.0.2.0/24 RIP 100 1 D 10.0.12.2 GigabitEthernet
0/0/0
10.0.12.0/24 Direct 0 0 D 10.0.12.1 GigabitEthernet
0/0/0
10.0.12.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
10.0.12.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
测试R1和R2的连通性：
<R1>ping 10.0.2.2
PING 10.0.2.2: 56 data bytes, press CTRL_C to break
Reply from 10.0.2.2: bytes=56 Sequence=1 ttl=255 time=20 ms
Reply from 10.0.2.2: bytes=56 Sequence=2 ttl=255 time=20 ms
Reply from 10.0.2.2: bytes=56 Sequence=3 ttl=255 time=20 ms
Reply from 10.0.2.2: bytes=56 Sequence=4 ttl=255 time=10 ms
Reply from 10.0.2.2: bytes=56 Sequence=5 ttl=255 time=40 ms
--- 10.0.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 10/22/40 ms