NA-NP-IE系列實驗實驗15：RIPv2 手工彙總

實驗15：RIPv2 手工彙總

1.實驗目的

通過本實驗可以掌握：

（1）RIPv2 路由的手工彙總

（2）RIPv2 不支援CIDR 彙總

（3）RIPv2 可以傳遞CIDR 彙總

2.拓撲結構

實驗拓撲如圖 所示。

3.實驗步驟

路由器R1、R2 和R0的配置如下

Router>en

Router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#ho r0

r0(config)#no ip do loo

r0(config)#lin  c 0

r0(config-line)#logg s

r0(config-line)#exec-t 00

r0(config-line)#exit

r0(config)#int loo 1

r0(config-if)#ip add

*Mar  1 00:04:20.387: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up

r0(config-if)#ip add 192.168.96.4 255.255.255.0

r0(config-if)#int loo 2

r0(config-if)#ip add 1

*Mar  1 00:04:38.139: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up

r0(config-if)#ip add 192.168.97.4 255.255.255.0

r0(config-if)#int loo  3

*Mar  1 00:04:54.815: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback3, changed state to up

r0(config-if)#ip add 192.168.98.4 255.255.255.0

r0(config-if)#int loo 4

r0(config-if)#ip add 19

*Mar  1 00:05:07.659: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback4, changed state to up

r0(config-if)#ip add 192.168.99.4 255.255.255.0

r0(config-if)#int s0/0

r0(config-if)#ip add 172.16.1.1 255.255.255.0

r0(config-if)#no sh

r0(config-if)#

*Mar  1 00:05:38.623: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up

*Mar  1 00:05:39.623: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

r0(config-if)#do sh ip int b

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  172.16.1.1      YES manual up                    up     

Serial0/1                  unassigned      YES unset  administratively down down   

Serial0/2                  unassigned      YES unset  administratively down down   

Serial0/3                  unassigned      YES unset  administratively down down   

Loopback1                  192.168.96.4    YES manual up                    up     

Loopback2                  192.168.97.4    YES manual up                    up     

Loopback3                  192.168.98.4    YES manual up                    up     

Loopback4                  192.168.99.4    YES manual up                    up     

r0(config-if)#do ping 172.16.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/36/64 ms

r0(config-if)#exit

r0(config)#router rip

r0(config-router)#ver 2

r0(config-router)#no auto

r0(config-router)#net 172.16.1.0

r0(config-router)#do sh ip route

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

     4.0.0.0/22 is subnetted, 1 subnets

R       4.4.0.0 [120/2] via 172.16.1.2, 00:00:04, Serial0/0

     172.16.0.0/24 is subnetted, 2 subnets

C       172.16.1.0 is directly connected, Serial0/0

R       172.16.2.0 [120/1] via 172.16.1.2, 00:00:04, Serial0/0

C    192.168.98.0/24 is directly connected, Loopback3

C    192.168.99.0/24 is directly connected, Loopback4

C    192.168.96.0/24 is directly connected, Loopback1

C    192.168.97.0/24 is directly connected, Loopback2

R       4.4.0.0 [120/2] via 172.16.1.2, 00:00:15, Serial0/0

R       172.16.2.0 [120/1] via 172.16.1.2, 00:00:15, Serial0/0

r0(config-router)#net 192.168.96.0    

r0(config-router)#net 192.168.97.0

r0(config-router)#net 192.168.98.0

r0(config-router)#net 192.168.99.0

r0(config-router)#exit

r0(config)#int s0/0

r0(config-if)#ip summary-address rip 192.168.96.0 255.255.252.0

 Summary mask must be greater or equal to major net

//顯示的提示資訊表明彙總後的掩碼長度必須要大于或等于主類網絡的掩碼程度，因為

“22<24”,是以不能彙總。是以RIPv2 不支援CIDR 彙總

r0(config-if)#exit                                            

r0(config-router)#no net 192.168.99.0                             

r0(config-router)#no net 192.168.98.0

r0(config-router)#no net 192.168.97.0

r0(config-router)#no net 192.168.96.0

解決方案如下

用靜态路由釋出被彙總的路由，再将靜态路由重分布到RIP 網絡中

r0(config)#ip route 192.168.96.0 255.255.252.0 null0

r0(config-router)#redistribute static //态路由重分布到RIP

R       4.4.0.0 [120/2] via 172.16.1.2, 00:00:01, Serial0/0

R       172.16.2.0 [120/1] via 172.16.1.2, 00:00:01, Serial0/0

S    192.168.96.0/22 is directly connected, Null0

r0(config-router)#do wr

Building configuration...

[OK]

r0(c

changed state to down

Router(config)#ho r1

r1(config)#no ip do loo

r1(config)#lin  c 0

r1(config-line)#logg s

r1(config-line)#exec-t 00

r1(config-line)#exit

r1(config)#int s0/0

r1(config-if)#ip add 172.16.1.2 255.255.255.0

r1(config-if)#no sh

r1(config-if)#exit

r1(config)#int s

*Mar  1 00:02:07.587: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up

*Mar  1 00:02:08.587: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

r1(config)#int s0/1

r1(config-if)#ip add 172.16.2.1 255.255.255.0

r1(config-if)#clo r 64000

r1(config-if)#

*Mar  1 00:02:27.907: %LINK-3-UPDOWN: Interface Serial0/1, changed state to up

*Mar  1 00:02:28.907: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to up

*Mar  1 00:02:33.527: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down

*Mar  1 00:02:53.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down

*Mar  1 00:04:13.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to up

*Mar  1 00:05:53.511: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

r1(config)#router rip

r1(config-router)#ve 2

r1(config-router)#no auto

r1(config-router)#net 172.16.1.0

r1(config-router)#net 172.16.2.0

r1(config-router)#do sh ip route

R       4.4.0.0 [120/1] via 172.16.2.2, 00:00:21, Serial0/1

C       172.16.2.0 is directly connected, Serial0/1

R       4.4.0.0 [120/1] via 172.16.2.2, 00:00:05, Serial0/1

R    192.168.96.0/22 [120/1] via 172.16.1.1, 00:00:22, Serial0/0

r1(config-router)#do wr

r1(config-router)#

Router>

Router>EN

Router#CONF T

Router(config)#ho r2

r2(config)#no ip domain loo

r2(config)#lin c 0

r2(config-line)#logg s

r2(config-line)#exec-t 00

r2(config-line)#exit

r2(config)#int loo 1

r2(config-if)#ip add 19

*Mar  1 00:02:36.447: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up

r2(config-if)#ip add 4.4.0.4 255.255.255.0

r2(config-if)#int loo 2

r2(config-if)#ip addd

*Mar  1 00:02:53.227: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback2, changed state to up

r2(config-if)#ip add 4.4.1.4 255.255.255.0

r2(config-if)#int loo 3

r2(config-if)#

*Mar  1 00:03:14.543: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback3, changed state to up

r2(config-if)#ip add 4.4.2.4 255.255.255.0

r2(config-if)#int loo 4

r2(config-if)#ip add

*Mar  1 00:03:32.179: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback4, changed state to up

r2(config-if)#ip add 4.4.3.4 255.255.255.0

r2(config-if)#exit

r2(config)#int s0/0

r2(config-if)#ip add 172.16.2.2  255.255.255.0

r2(config-if)#no sh

*Mar  1 00:04:12.939: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up

*Mar  1 00:04:13.939: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

r2(config)#router rip

r2(config-router)#net 4.0.0.0

r2(config-router)#net 172.16.2.0

r2(config-router)#net 4.0.0.0  

r2(config-router)#no net 4.0.0.0

r2(config-router)#no net 172.16.2.0

r2(config-router)#v 2

% Ambiguous command:  "v 2"

r2(config-router)#ver 2

r2(config-router)#no auto

r2(config-router)#exit

r2(config-if)#ip summary-address rip 4.4.0.0 255.255.252.0

r2(config-if)#do sh ip route

     4.0.0.0/24 is subnetted, 4 subnets

C       4.4.0.0 is directly connected, Loopback1

C       4.4.1.0 is directly connected, Loopback2

C       4.4.2.0 is directly connected, Loopback3

C       4.4.3.0 is directly connected, Loopback4

     172.16.0.0/24 is subnetted, 1 subnets

C       172.16.2.0 is directly connected, Serial0/0

R       172.16.1.0 [120/1] via 172.16.2.1, 00:00:10, Serial0/0

R    192.168.96.0/22 [120/2] via 172.16.2.1, 00:00:10, Serial0/0

r2(config-if)#do ping 192.168.96.4

Sending 5, 100-byte ICMP Echos to 192.168.96.4, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/40/64 ms

r2(config-if)#do wr

通過輸出不難看出RIPv2 是可以傳遞CIDR 彙總資訊的。

本文轉自gauyanm 51CTO部落格，原文連結：http://blog.51cto.com/gauyanm/235791，如需轉載請自行聯系原作者