實驗13：使用子網地址 1.實驗目的 通過本實驗可以掌握： （1）RIPv1?使用子網地址的條件 （2）RIPv1?接收子網路由的原則 2.拓撲結構 實驗拓撲如圖4-4?所示。 圖4-4 RIPv1?使用子網地址 3.實驗步驟 （1）步驟1：配置路由器R0 Router>en
Router#conf t
Enter configuration commands, one per line.? End with CNTL/Z.
Router(config)#ho r0
r0(config)#no ip domain-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 %LINK-5-CHANGED: Interface Loopback1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
r0(config-if)#
r0(config-if)#ip add 172.16.1.1. 255.255.255.0
???????????????????? ^
% Invalid input detected at '^' marker.
?
r0(config-if)#ip add 172.16.1.1 255.255.255.0
r0(config-if)#int s1/1/0
r0(config-if)#ip add 172.16.2.1 255.255.255.0
r0(config-if)#clo r 64000
r0(config-if)#no sh %LINK-5-CHANGED: Interface Serial1/1/0, changed state to down
r0(config-if)#
%LINK-5-CHANGED: Interface Serial1/1/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1/0, changed state to up
r0(config-if)#do ping 172.16.2.2 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/7 ms r0(config-if)#exit
r0(config)#router rip?
r0(config-router)#v 1
r0(config-router)#net 172.16.0.0
r0(config-router)#
r0(config-router)#do sh ip prot
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 2 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive 1
? Interface???????????? Send? Recv? Triggered RIP? Key-chain
? Serial1/1/0?????????? 1???? 1?????
? Loopback1???????????? 1???? 1?????
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
?172.16.0.0
Passive Interface(s):
Routing Information Sources:
?Gateway???????? Distance????? Last Update
?172.16.2.2?????????? 120????? 00:00:02
Distance: (default is 120)
r0(config-router)#do sh ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
?????? i - IS-IS, 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 ???? 172.16.0.0/24 is subnetted, 3 subnets
C?????? 172.16.1.0 is directly connected, Loopback1
C?????? 172.16.2.0 is directly connected, Serial1/1/0
R?????? 172.16.3.0 [120/1] via 172.16.2.2, 00:00:06, Serial1/1/0
從路由器R0路由表輸出可以看出，它們互相學習到了24?位的路由條目，從而 可以說明，某些情況下RIPv1?更新確實可以攜帶子網信息。 （2）步驟2：配置路由器R1 Router>en
Router#conf t
Enter configuration commands, one per line.? End with CNTL/Z.
Router(config)#ho r1
r1(config)#no ip domain-loo
r1(config)#lin c 0
r1(config-line)#logg s?
r1(config-line)#exec-t
% Incomplete command.
r1(config-line)#exec-t 00
r1(config-line)#exit
r1(config)#int loo 1 %LINK-5-CHANGED: Interface Loopback1, changed state to up
r1(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
r1(config-if)#ip add 172.16.3.1 255.255.255.0
r1(config-if)#no hs
???????????????? ^
% Invalid input detected at '^' marker.
?
r1(config-if)#int s1/1/0
r1(config-if)#ip add 172.16.2.2 255.255.255.0
r1(config-if)#no sh %LINK-5-CHANGED: Interface Serial1/1/0, changed state to up
r1(config-if)#
r1(config-if)#do ping 172.16.2.1
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1/0, changed state to up
r1(config-if)#do ping 172.16.2.1 Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/5 ms r1(config-if)#exit
r1(config)#router rip?
r1(config-router)#net 172.16.0.0
r1(config-router)#do sh ip route?
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
?????? i - IS-IS, 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 ???? 172.16.0.0/24 is subnetted, 3 subnets
R?????? 172.16.1.0 [120/1] via 172.16.2.1, 00:00:05, Serial1/1/0
C?????? 172.16.2.0 is directly connected, Serial1/1/0
C?????? 172.16.3.0 is directly connected, Loopback1
r1(config-router)#do sh ip pro
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 5 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive any version
? Interface???????????? Send? Recv? Triggered RIP? Key-chain
? Serial1/1/0?????????? 1???? 2 1???
? Loopback1???????????? 1???? 2 1???
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
?172.16.0.0
Passive Interface(s):
Routing Information Sources:
?Gateway???????? Distance????? Last Update
?172.16.2.1?????????? 120????? 00:00:18
Distance: (default is 120)
RIPv1?路由更新可以攜帶子網信息必須同時滿足兩個條件： （1）整個網絡所有地址在同一個主類網絡；

（2）子網掩碼長度必須相同

本文轉自gauyanm 51CTO博客，原文鏈接：http://blog.51cto.com/gauyanm/234975，如需轉載請自行聯系原作者

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