浅谈:RIPV2版本不支持CIDR汇总但是可以传递

学过NA的都知道RIPv2版本并不是一个完全无类的协议,因为他不支持CIDR,并不能汇总主类地址,但是ripv2却可以传递CIDR汇总信息,下面我们就来验证一下:

首先搭建一个简单的拓扑图

首先在R1和R2路由之间运行RIP协议

R1配置

interface FastEthernet0/0
 ip address 1.1.1.1 255.255.255.0
 duplex auto
 speed auto

router rip
 version 2
 network 1.0.0.0
 no auto-summary

R2配置

interface Loopback0
 ip address 172.16.1.1 255.255.255.0
!        
interface Loopback1
 ip address 172.16.2.1 255.255.255.0
!        
interface Loopback2
 ip address 172.16.3.1 255.255.255.0
!        
interface FastEthernet0/0
 ip address 1.1.1.2 255.255.255.0
 duplex auto
 speed auto
!        

router rip
 version 2
 redistribute static
 network 1.0.0.0
 no auto-summary
!        

no ip http server
no ip http secure-server
ip route 172.16.0.0 255.255.252.0 Null0

以上就是实验的配置,这里说下在R2上配置的一条静态汇总后的路由ip route 172.16.0.0 255.255.252.0 Null0然后再在RIP协议下使用redistribute static来重发布这条静态路由

好了 我们来看下R1学习到的路由表

R1#sh ip rou
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, FastEthernet0/0
     172.16.0.0/22 is subnetted, 1 subnets
R       172.16.0.0 [120/1] via 1.1.1.2, 00:00:04, FastEthernet0/0(这就表明RIP将静态的汇总路由传递过来)

 

 

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