實(shí)驗(yàn)31 驗(yàn)證RIPv2 不支持CIDR匯總,但可傳遞CIDR匯總特性

1、實(shí)驗(yàn)：驗(yàn)證RIPv2 不支持CIDR匯總，但可傳遞CIDR匯總特性試驗(yàn)?zāi)康模候?yàn)證RIP V2 不支持CIDR匯總，但可傳遞CIDR匯總特性。試驗(yàn)設(shè)備：RG-RSR20 二臺(tái)、網(wǎng)線若干試驗(yàn)拓?fù)鋱D：實(shí)驗(yàn)步驟及要求：第一步：配置各臺(tái)路由器用戶名和IP地址，并且使用ping命令確認(rèn)各路由器的直連口的互通性。第二步：按照拓?fù)渑渲肦IPv2協(xié)議，關(guān)閉自動(dòng)匯總。R1：R1(config)#router ripR1(config-router)#version 2R1(config-router)#no auto-summary R1(config-router)#net 12.1.1.0R1(config-

2、router)#net 172.8.0.0R1(config-router)#net 172.9.0.0R1(config-router)#net 172.10.0.0R1(config-router)#net 172.11.0.0R1(config-router)#net 172.12.0.0R1(config-router)#endR2：R2(config)#router rip R2(config-router)#version 2R2(config-router)#no auto-summary R2(config-router)#net 12.1.1.0R2(config-route

3、r)#net 10.8.0.0R2(config-router)#net 10.9.0.0R2(config-router)#net 10.10.0.0R2(config-router)#net 10.11.0.0R2(config-router)#net 10.12.0.0R2(config-router)#end第三步：查看路由表R1#show ip routC 172.8.0.0/16 is directly connected, Loopback0C 172.9.0.0/16 is directly connected, Loopback1C 172.10.0.0/16 is dire

4、ctly connected, Loopback2C 172.11.0.0/16 is directly connected, Loopback3C 172.12.0.0/16 is directly connected, Loopback4 10.0.0.0/16 is subnetted, 5 subnetsR 10.10.0.0 120/1 via 12.1.1.2, 00:00:08, Serial1/1R 10.11.0.0 120/1 via 12.1.1.2, 00:00:08, Serial1/1R 10.8.0.0 120/1 via 12.1.1.2, 00:00:08,

5、Serial1/1R 10.9.0.0 120/1 via 12.1.1.2, 00:00:08, Serial1/1R 10.12.0.0 120/1 via 12.1.1.2, 00:00:08, Serial1/1相互學(xué)到了各自的路由信息 12.0.0.0/24 is subnetted, 1 subnetsC 12.1.1.0 is directly connected, Serial1/1R1#R2#show ip rouR 172.8.0.0/16 120/1 via 12.1.1.1, 00:00:19, Serial1/0R 172.9.0.0/16 120/1 via 12.

6、1.1.1, 00:00:19, Serial1/0R 172.10.0.0/16 120/1 via 12.1.1.1, 00:00:19, Serial1/0R 172.11.0.0/16 120/1 via 12.1.1.1, 00:00:19, Serial1/0R 172.12.0.0/16 120/1 via 12.1.1.1, 00:00:18, Serial1/0相互學(xué)到了各自的路由信息 10.0.0.0/16 is subnetted, 5 subnetsC 10.10.0.0 is directly connected, Loopback2C 10.11.0.0 is di

7、rectly connected, Loopback3C 10.8.0.0 is directly connected, Loopback0C 10.9.0.0 is directly connected, Loopback1C 10.12.0.0 is directly connected, Loopback4 12.0.0.0/24 is subnetted, 1 subnetsC 12.1.1.0 is directly connected, Serial1/0R2#第四步：在R2上做匯總R2(config)#inter s1/0R2(config-if)#ip summary-addr

8、ess rip 10.8.0.0 255.248.0.0 R2(config-if)#endR2#30秒后我們查看R1的路由表：R1#show ip routC 172.8.0.0/16 is directly connected, Loopback0C 172.9.0.0/16 is directly connected, Loopback1C 172.10.0.0/16 is directly connected, Loopback2C 172.11.0.0/16 is directly connected, Loopback3C 172.12.0.0/16 is directly con

9、nected, Loopback4 10.0.0.0/13 is subnetted, 1 subnetsR 10.8.0.0 120/1 via 12.1.1.2, 00:00:00, Serial1/1R1已經(jīng)接收到了匯總路由 12.0.0.0/24 is subnetted, 1 subnetsC 12.1.1.0 is directly connected, Serial1/1R1#show ip rip database 10.0.0.0/8 auto-summary10.8.0.0/13 1 via 12.1.1.2, 00:00:22, Serial1/1R1已經(jīng)接收到了匯總路由

10、，子網(wǎng)掩碼是13位12.0.0.0/8 auto-summary12.1.1.0/24 directly connected, Serial1/1172.8.0.0/16 auto-summary172.8.0.0/16 directly connected, Loopback0172.9.0.0/16 auto-summary172.9.0.0/16 directly connected, Loopback1172.10.0.0/16 auto-summary172.10.0.0/16 directly connected, Loopback2172.11.0.0/16 auto-summa

11、ry172.11.0.0/16 directly connected, Loopback3172.12.0.0/16 auto-summary172.12.0.0/16 directly connected, Loopback4R1#第五步：在路由器R1上做匯總R1(config)#inter s1/1R1(config-if)#ip summary-address rip 172.16.0.0 255.248.0.0 Summary mask must be greater or equal to major net其意思是匯總掩碼的長(zhǎng)度必須等于或大于主類的長(zhǎng)度，因?yàn)椤?316”,所以不能匯

12、總，由此可見RIP不支持 CIDR。第六步：所以RIPv2不支持CIDR匯總，但是可以傳遞CIDR匯總。方法：我們用靜態(tài)路由發(fā)布被匯總的路由：R1(config)#ip route 172.8.0.0 255.248.0.0 null 0我們用靜態(tài)路由來發(fā)布被匯總的路由，端口指向null 0， R1(config)#router ripR1(config-router)#redistribute static將靜態(tài)路由重發(fā)布到RIP路由協(xié)議中 R1(config-router)#no net 172.8.0.0 R1(config-router)#no net 172.9.0.0R1(conf

13、ig-router)#no net 172.10.0.0R1(config-router)#no net 172.11.0.0R1(config-router)#no net 172.12.0.0R1(config-router)#endR1#在R2上驗(yàn)證：R2#show ip route 10.0.0.0/16 is subnetted, 5 subnetsC 10.10.0.0 is directly connected, Loopback2C 10.11.0.0 is directly connected, Loopback3C 10.8.0.0 is directly connecte

14、d, Loopback0C 10.9.0.0 is directly connected, Loopback1C 10.12.0.0 is directly connected, Loopback4 12.0.0.0/24 is subnetted, 1 subnetsC 12.1.1.0 is directly connected, Serial1/0R 172.8.0.0/13 120/1 via 12.1.1.1, 00:00:24, Serial1/0結(jié)果表明R1將匯總轉(zhuǎn)遞給了R2！驗(yàn)證了RIPv2 不支持CIDR匯總，但可傳遞CIDR匯總特性！R2#show ip rip datab

15、ase 10.0.0.0/8 auto-summary10.8.0.0/13 int-summary10.8.0.0/16 directly connected, Loopback010.9.0.0/16 directly connected, Loopback110.10.0.0/16 directly connected, Loopback210.11.0.0/16 directly connected, Loopback310.12.0.0/16 directly connected, Loopback412.0.0.0/8 auto-summary12.1.1.0/24 directly connected, Serial1/0172.8.0.0/131 via 12.1.1.1, 00:00:00, Serial1/0匯總的路由條目，子網(wǎng)掩碼是13位R2#ping 172.9