本文档详细介绍了在HCIP认证中进行的RIPv2配置实验，包括IP地址设置、路由配置、确保RIP路由的正确传播、R3通过R2访问R1环回接口的安全策略实施，以及减少路由条目和增强网络安全性。同时，解决了R6、R7无法学习到R1环回路由的问题，并实现了全网可达性，模拟了R1作为外网，R2作为边界设备的情景。
一、配置IP地址和环回
[R1]display ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 12.0.0.1/24 up up
GigabitEthernet0/0/1 14.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 1.1.1.1/24 up up(s)
LoopBack1 172.16.1.1/24 up up(s)
LoopBack2 172.16.2.1/24 up up(s)
LoopBack3 172.16.3.1/24 up up(s)
NULL0 unassigned up up(s) [R2]display ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 12.0.0.2/24 up up
GigabitEthernet0/0/1 23.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 2.2.2.2/24 up up(s)
NULL0 unassigned up up(s) [R3]display ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 23.0.0.2/24 up up
GigabitEthernet0/0/1 34.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 3.3.3.3/24 up up(s)
NULL0 unassigned up up(s) [R4]display ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 14.0.0.2/24 up up
GigabitEthernet0/0/1 34.0.0.2/24 up up
GigabitEthernet0/0/2 45.0.0.1/24 up up
GigabitEthernet4/0/0 46.0.0.1/24 up up
LoopBack0 4.4.4.4/24 up up(s)
NULL0 unassigned up up(s) [R5]display ip interface brief
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 45.0.0.2/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 5.5.5.5/24 up up(s)
NULL0 unassigned up up(s) [R6]display ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 46.0.0.2/24 up up
GigabitEthernet0/0/1 67.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 6.6.6.6/24 up up(s)
NULL0 unassigned up up(s) [R7]dis ip int b
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 67.0.0.2/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 7.7.7.7/24 up up(s)
NULL0 unassigned up up(s) 二、配置路由
[R1]rip
[R1-rip-1]v 2
[R1-rip-1]network 12.0.0.0
[R1-rip-1]network 14.0.0.0
[R1-rip-1]network 1.0.0.0
[R1-rip-1]network 172.16.0.0
[R2]rip
[R2-rip-1]v 2
[R2-rip-1]network 12.0.0.0
[R2-rip-1]network 23.0.0.0
[R2-rip-1]network 2.0.0.0[R3]rip
[R3-rip-1]v 2
[R3-rip-1]network 23.0.0.0
[R3-rip-1]network 34.0.0.0
[R3-rip-1]network 3.0.0.0[R4]rip
[R4-rip-1]v 2
[R4-rip-1]network 34.0.0.0
[R4-rip-1]network 45.0.0.0
[R4-rip-1]network 14.0.0.0
[R4-rip-1]network 46.0.0.0
[R4-rip-1]network 4.0.0.0[R5]rip
[R5-rip-1]v 2
[R5-rip-1]network 45.0.0.0
#任务五要求R5的环回为模拟运营商，不能宣告[R6]rip
[R6-rip-1]v 1
[R6-rip-1]network 46.0.0.0
[R6-rip-1]network 67.0.0.0
[R6-rip-1]network 6.0.0.0[R7]rip
[R7-rip-1]v 1
[R7-rip-1]network 67.0.0.0
[R7-rip-1]network 7.0.0.0此时检查RIP是否正常获取到路由
#以R1为例：5.0.0.0没有宣告，没有获取到；6.0.0.0和7.0.0.0因为RIP版本不同也获取不到。
[R1]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 7 Routes : 8
RIP routing table status : <Active>
Destinations : 7 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
2.2.2.0/24 RIP 100 1 D 12.0.0.2 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 2 D 12.0.0.2 GigabitEthernet
0/0/0
RIP 100 2 D 14.0.0.2 GigabitEthernet
0/0/1
4.4.4.0/24 RIP 100 1 D 14.0.0.2 GigabitEthernet
0/0/1
23.0.0.0/24 RIP 100 1 D 12.0.0.2 GigabitEthernet
0/0/0
34.0.0.0/24 RIP 100 1 D 14.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 1 D 14.0.0.2 GigabitEthernet
0/0/1
46.0.0.0/24 RIP 100 1 D 14.0.0.2 GigabitEthernet
0/0/1
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
三、完成任务三：R3使用R2访问R1的环回
#此时访问1.1.1.0/24和172.16.1/2/3.0/24都是负载均衡
[R3]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 10 Routes : 14
RIP routing table status : <Active>
Destinations : 10 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
2.2.2.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
4.4.4.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
46.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
172.16.1.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
172.16.2.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
172.16.3.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
#先在R1上做环回的汇总（两个接口都要做，否则汇总和明细都会学习到），减少路由条目，在RIP学习时也不会再发送明细
[R1]int g 0/0/0
[R1-GigabitEthernet0/0/0]rip summary-address 172.16.0.0 255.255.252.0
[R1-GigabitEthernet0/0/0]int g 0/0/1
[R1-GigabitEthernet0/0/1]rip summary-address 172.16.0.0 255.255.252.0
#做好后，检查，可以发现明细变成了汇总路由
[R3]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 8 Routes : 10
RIP routing table status : <Active>
Destinations : 8 Routes : 10
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
2.2.2.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
4.4.4.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
46.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
172.16.0.0/22 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 34.0.0.2 GigabitEthernet
0/0/1
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
#写了汇总后，一定记得要防环！
[R1]ip route-static 172.16.0.0 22 NULL 0现在开始做策略
[R3]acl 2000
[R3-acl-basic-2000]rule permit source 172.16.0.0 0
[R3-acl-basic-2000]rule permit source 1.1.1.0 0
[R3-acl-basic-2000]q
[R3]int g 0/0/1
[R3-GigabitEthernet0/0/1]rip metricin 2000 2检查R3
[R3]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 8 Routes : 8
RIP routing table status : <Active>
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
2.2.2.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
4.4.4.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/24 RIP 100 1 D 23.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
46.0.0.0/24 RIP 100 1 D 34.0.0.2 GigabitEthernet
0/0/1
172.16.0.0/22 RIP 100 2 D 23.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
四、完成任务四：减少路由条目，增加安全性
在R1和R2之间做一个认证增加传输的安全性，其他的省略
[R1]int g 0/0/0
[R1-GigabitEthernet0/0/0]rip authentication-mode md5 usual cipher 123456
[R2]int g 0/0/0
[R2-GigabitEthernet0/0/0]rip authentication-mode md5 usual cipher 123456
五、完成任务八：实现全网可达
[R6]int g 0/0/0
[R6-GigabitEthernet0/0/0]rip version 2
[R6-GigabitEthernet0/0/0]q
[R6]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 11 Routes : 11
RIP routing table status : <Active>
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
2.2.2.0/24 RIP 100 3 D 46.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
4.4.4.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
7.0.0.0/8 RIP 100 1 D 67.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
45.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
172.16.0.0/22 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0[R5]rip
[R5-rip-1]default-route originate
#此时其他路由器会自动生成R5的缺省路由
#实现全网可达六、完成任务七：R6、R7不能学习到R1环回路由
[R6]acl 2000
[R6-acl-basic-2000]rule deny source 172.16.0.0 0
[R6-acl-basic-2000]rule deny source 1.1.1.0 0
[R6-acl-basic-2000]rule permit source any
[R6-acl-basic-2000]q
[R6]rip
[R6-rip-1]filter-policy 2000 import
[R6-rip-1]q
#检验
[R6]dis ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 10 Routes : 10
RIP routing table status : <Active>
Destinations : 10 Routes : 10
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
2.2.2.0/24 RIP 100 3 D 46.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
4.4.4.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
7.0.0.0/8 RIP 100 1 D 67.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/24 RIP 100 2 D 46.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
45.0.0.0/24 RIP 100 1 D 46.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
[R7]dis ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 11 Routes : 11
RIP routing table status : <Active>
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 3 D 67.0.0.1 GigabitEthernet
0/0/0
2.0.0.0/8 RIP 100 4 D 67.0.0.1 GigabitEthernet
0/0/0
3.0.0.0/8 RIP 100 3 D 67.0.0.1 GigabitEthernet
0/0/0
4.0.0.0/8 RIP 100 2 D 67.0.0.1 GigabitEthernet
0/0/0
6.0.0.0/8 RIP 100 1 D 67.0.0.1 GigabitEthernet
0/0/0
12.0.0.0/8 RIP 100 3 D 67.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/8 RIP 100 2 D 67.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/8 RIP 100 3 D 67.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/8 RIP 100 2 D 67.0.0.1 GigabitEthernet
0/0/0
45.0.0.0/8 RIP 100 2 D 67.0.0.1 GigabitEthernet
0/0/0
46.0.0.0/8 RIP 100 1 D 67.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
七、完成任务六：R1telnetR2环回实际telnet到R7上
[R7]aaa
[R7-aaa]local-user admin privilege level 15 password cipher 123456
[R7-aaa]local-user admin service-type telnet
[R7-aaa]q
[R7]user-interface vty 0 4
[R7-ui-vty0-4]authentication-mode aaa
[R7-ui-vty0-4]q
#在R6上验证一下
[R6]ping 7.7.7.7
PING 7.7.7.7: 56 data bytes, press CTRL_C to break
Reply from 7.7.7.7: bytes=56 Sequence=1 ttl=255 time=150 ms
Reply from 7.7.7.7: bytes=56 Sequence=2 ttl=255 time=30 ms
Reply from 7.7.7.7: bytes=56 Sequence=3 ttl=255 time=20 ms
Reply from 7.7.7.7: bytes=56 Sequence=4 ttl=255 time=20 ms
Reply from 7.7.7.7: bytes=56 Sequence=5 ttl=255 time=20 ms
--- 7.7.7.7 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 20/48/150 ms
<R6>telnet 7.7.7.7
Press CTRL_] to quit telnet mode
Trying 7.7.7.7 ...
Connected to 7.7.7.7 ...
Login authentication
Username:admin
Password:
<R7>此题相当于R1是外网，R2是边界设备，R2的g0/0/0就是边界接口
[R2]int g 0/0/0
[R2-GigabitEthernet0/0/0]nat server protocol tcp global interface loopback 0 23
inside 7.7.7.7 23
Warning:The port 23 is well-known port. If you continue it may cause function fa
ilure.
Are you sure to continue?[Y/N]:y
<R1>telnet 2.2.2.2
Press CTRL_] to quit telnet mode
Trying 2.2.2.2 ...
#此时telnet不通
#主要和流量的流向有关系，需要流量都经过R2的g0/0/0接口，即R1→R2→R3→R4→R6→R7，回来也是同样的路径[R2]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 12 Routes : 19
RIP routing table status : <Active>
Destinations : 12 Routes : 19
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
1.1.1.0/24 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 1 D 23.0.0.2 GigabitEthernet
0/0/1
4.4.4.0/24 RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
6.6.6.0/24 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
7.0.0.0/8 RIP 100 4 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 4 D 12.0.0.1 GigabitEthernet
0/0/0
14.0.0.0/24 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/24 RIP 100 1 D 23.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
46.0.0.0/24 RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
67.0.0.0/24 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
172.16.0.0/22 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
#检查R2 可以发现去7.0.0.0网段的路由是负载均衡
#我们要让路由只走23.0.0.0网段[R4]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 10 Routes : 11
RIP routing table status : <Active>
Destinations : 10 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 1 D 45.0.0.2 GigabitEthernet
0/0/2
1.1.1.0/24 RIP 100 1 D 14.0.0.1 GigabitEthernet
0/0/0
2.2.2.0/24 RIP 100 2 D 34.0.0.1 GigabitEthernet
0/0/1
RIP 100 2 D 14.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 1 D 34.0.0.1 GigabitEthernet
0/0/1
6.6.6.0/24 RIP 100 1 D 46.0.0.2 GigabitEthernet
4/0/0
7.0.0.0/8 RIP 100 2 D 46.0.0.2 GigabitEthernet
4/0/0
12.0.0.0/24 RIP 100 1 D 14.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/24 RIP 100 1 D 34.0.0.1 GigabitEthernet
0/0/1
67.0.0.0/24 RIP 100 1 D 46.0.0.2 GigabitEthernet
4/0/0
172.16.0.0/22 RIP 100 1 D 14.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
#R4上也有这个问题
#我们需要让去12.0.0.0网段的路由只走34.0.0.0网段[R2]acl 2000
[R2-acl-basic-2000]rule permit source 7.0.0.0 0
[R2-acl-basic-2000]q
[R2]inter g 0/0/0
[R2-GigabitEthernet0/0/0]rip metricin 2000 10
[R2-GigabitEthernet0/0/0]q
#此时就只走23.0.0.0网段了
[R2]display ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 12 Routes : 18
RIP routing table status : <Active>
Destinations : 12 Routes : 18
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
1.1.1.0/24 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 1 D 23.0.0.2 GigabitEthernet
0/0/1
4.4.4.0/24 RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
6.6.6.0/24 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
7.0.0.0/8 RIP 100 4 D 23.0.0.2 GigabitEthernet
0/0/1
14.0.0.0/24 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/24 RIP 100 1 D 23.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/24 RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
46.0.0.0/24 RIP 100 2 D 12.0.0.1 GigabitEthernet
0/0/0
RIP 100 2 D 23.0.0.2 GigabitEthernet
0/0/1
67.0.0.0/24 RIP 100 3 D 23.0.0.2 GigabitEthernet
0/0/1
RIP 100 3 D 12.0.0.1 GigabitEthernet
0/0/0
172.16.0.0/22 RIP 100 1 D 12.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
[R4]acl 2000
[R4-acl-basic-2000]rule permit source 12.0.0.0 0
[R4-acl-basic-2000]q
[R4]inter g 0/0/0
[R4-GigabitEthernet0/0/0]rip metricin 2000 10
[R4-GigabitEthernet0/0/0]q
#此时去12.0.0.0只走34.0.0.0网段了
[R4]dis ip routing-table protocol rip
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 10 Routes : 11
RIP routing table status : <Active>
Destinations : 10 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 RIP 100 1 D 45.0.0.2 GigabitEthernet
0/0/2
1.1.1.0/24 RIP 100 1 D 14.0.0.1 GigabitEthernet
0/0/0
2.2.2.0/24 RIP 100 2 D 34.0.0.1 GigabitEthernet
0/0/1
RIP 100 2 D 14.0.0.1 GigabitEthernet
0/0/0
3.3.3.0/24 RIP 100 1 D 34.0.0.1 GigabitEthernet
0/0/1
6.6.6.0/24 RIP 100 1 D 46.0.0.2 GigabitEthernet
4/0/0
7.0.0.0/8 RIP 100 2 D 46.0.0.2 GigabitEthernet
4/0/0
12.0.0.0/24 RIP 100 2 D 34.0.0.1 GigabitEthernet
0/0/1
23.0.0.0/24 RIP 100 1 D 34.0.0.1 GigabitEthernet
0/0/1
67.0.0.0/24 RIP 100 1 D 46.0.0.2 GigabitEthernet
4/0/0
172.16.0.0/22 RIP 100 1 D 14.0.0.1 GigabitEthernet
0/0/0
RIP routing table status : <Inactive>
Destinations : 0 Routes : 0
#通啦！
<R1>telnet 2.2.2.2
Press CTRL_] to quit telnet mode
Trying 2.2.2.2 ...
Connected to 2.2.2.2 ...
Login authentication
Username:admin
Password:
-----------------------------------------------------------------------------
User last login information:
-----------------------------------------------------------------------------
Access Type: Telnet
IP-Address : 67.0.0.1
Time : 2022-07-10 18:12:50-08:00
-----------------------------------------------------------------------------
<R7>
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