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HCIA——动态路由OSPF配置综合实验讲解_配置ospf动态路由协议基本功能实验总结
作者：2023面试高手 | 2024-03-21 14:03:43
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配置ospf动态路由协议基本功能实验总结
HCIA所有内容：
1、七层参考模型及IP讲解
2、TCP三次握手讲解
3、TCP四次挥手讲解及抓包分析
4、DHCP协议讲解及抓包分析
5、静态综合实验讲解
7、静态路由讲解
8、RIP路由信息协议讲解
9、动态路由协议讲解
10、抓包进行分析RIP以及OSPF的包
11、动态路由OSPF配置综合实验讲解
12、Vlan虚拟局域网技术讲解
13、ACL访问控制列表讲解
14、NAT技术讲解
15、网络综合实验讲解
OSPF配置综合实验
一、实验要求
1. R1-R3为区域0，R3-R4为区域1，其中R3的环回也在区域0，R1，R2也各有一个环回；
2. R1-R3 R3为DR设备，没有BDR；
3. R4环回地址已固定，其他所有网段使用192.168.1.0/24进行合理的分配；
4. R4环回不能宣告，全网可达，保障更新安全，避免环路，减少路由条目。
二、实验思路
1、首先进行划分网段，R1到R3所需要3个环回地址，所以我们必须划分三个网段出来，同时两个区域链路上也都需要网段，又由于要减少路由条目，所以我将把左边三条链路配置到一个子网中，这时也就是三条环回加区域0链路再加区域1链路最终需要5条链路。
以下便是子网划分的步骤以及思路：
192.168.1.0/24
1、由于是两个区域，所以首先往后借一位，划分成两个子网出来。
192.168.1.0 0000000/25 192.168.1.0/25——区域1
192.168.1.1 0000000/25 192.168.1.128/25——区域2
接下来由于我们左边链路要使用4个子网网段进行分配。
那么我们将再向后借两位：
192.168.1.0 00 00000/27 192.168.1.0/27——R1环回接口
192.168.1.0 01 00000/27 192.168.1.32/27——R2环回接口
192.168.1.0 10 00000/27 192.168.1.64/27——R3环回接口
192.168.1.0 11 00000/27 192.168.1.96/27——区域1链路网段
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所以，接口IP以及环回如下图所示：
2、我们要实现R3为DR设备，没有BDR，那么我们可以把设置R1和R2的g0/0/0接口优先级改0，从而放弃DR/BRD的选举。
3、不能直接宣告R4的环回还要可以访问，那么我们这里可以使用缺省路由
4、首先安全的话，我们可以对R1，R2以及R3及进行手工认证来让用户访问被保护的资源。从而确保安全性。
5、避免环路，我的思路是对进行汇总后的地址配空接口。
6、减少路由条目便是刚才进行的子网划分以及子网汇总了。
三、实验步骤
1、配置接口IP地址以及环回
（1）实现代码：
R1实现代码：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys r1
[r1]user-interface console 0
[r1-ui-console0]idle-timeout 0 0
[r1-ui-console0]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 192.168.1.97 27
[r1-GigabitEthernet0/0/0]int l0
[r1-LoopBack0]ip address 192.168.1.1 27
[r1-LoopBack0]quit
[r1]
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R2实现代码：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys r2
[r2]user-interface console 0
[r2-ui-console0]idle-timeout 0 0
[r2-ui-console0]int g0/0/0
[r2-GigabitEthernet0/0/0]ip address 192.168.1.98 27
[r2-GigabitEthernet0/0/0]int l0
[r2-LoopBack0]ip address 192.168.1.33 27
[r2-LoopBack0]quit
[r2]
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R3实现代码：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys r3
[r3]user-interface console 0
[r3-ui-console0]idle-timeout 0 0
[r3-ui-console0]int g0/0/0
[r3-GigabitEthernet0/0/0]ip address 192.168.1.99 27
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip address 192.168.1.129 25
[r3-GigabitEthernet0/0/1]int l0
[r3-LoopBack0]ip address 192.168.1.65 27
[r3-LoopBack0]quit
[r3]
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R4实现代码：
The device is running!
<Huawei>sys
[Huawei]sys r4
[r4]user-interface console 0
[r4-ui-console0]idle-timeout 0 0
[r4-ui-console0]int g0/0/0
[r4-GigabitEthernet0/0/0]ip address 192.168.1.130 25
[r4-GigabitEthernet0/0/0]int l0
[r4-LoopBack0]ip address 4.4.4.1 24
[r4-LoopBack0]quit
[r4]
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（2）接口摘要信息：
R1接口摘要信息:
[r1]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 2
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.97/27 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 192.168.1.1/27 up up(s)
NULL0 unassigned up up(s)
[r1]
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R2接口摘要信息:
[r2]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 2
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.98/27 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 192.168.1.33/27 up up(s)
NULL0 unassigned up up(s)
[r2]
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R3接口摘要信息:
[r3]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.99/27 up up
GigabitEthernet0/0/1 192.168.1.129/25 up up
GigabitEthernet0/0/2 unassigned down down
LoopBack0 192.168.1.65/27 up up(s)
NULL0 unassigned up up(s)
[r3]
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R4接口摘要信息:
[r4]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 2
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.130/25 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
LoopBack0 4.4.4.1/24 up up(s)
NULL0 unassigned up up(s)
[r4]
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2、启动OSPF进程，创建区域进行宣告
（1）实现代码：
R1实现代码：
[r1]interface g0/0/0
[r1-GigabitEthernet0/0/0]ospf dr-priority 0
[r1-GigabitEthernet0/0/0]quit
[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 0
[r1-ospf-1-area-0.0.0.0]network 192.168.1.96 0.0.0.31
[r1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.31
[r1-ospf-1-area-0.0.0.0]quit
[r1-ospf-1]quit
[r1]
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R2实现代码：
[r2]ospf 1
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 192.168.1.96 0.0.0.31
[r2-ospf-1-area-0.0.0.0]network 192.168.1.32 0.0.0.31
[r2-ospf-1-area-0.0.0.0]quit
[r2-ospf-1]quit
[r2]
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R3实现代码：
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 192.168.1.96 0.0.0.31
[r3-ospf-1-area-0.0.0.1]network 192.168.1.128 0.0.0.127
[r3-ospf-1-area-0.0.0.1]quit
[r3-ospf-1]quit
[r3]
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R4实现代码：
[r4]os
[r4]ospf 1
[r4-ospf-1]area 1
[r4-ospf-1-area-0.0.0.1]network 192.168.1.128 0.0.0.127
[r4-ospf-1-area-0.0.0.1]
[r4-ospf-1-area-0.0.0.1]quit
[r4-ospf-1]default-route-advertise always
[r4-ospf-1]quit
[r4]
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（2）路由表：
R1路由表：
[r1]display ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
Destinations : 3 Routes : 3
OSPF routing table status : <Active>
Destinations : 3 Routes : 3
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 O_ASE 150 1 D 192.168.1.99 GigabitEthernet
0/0/0
192.168.1.33/32 OSPF 10 1 D 192.168.1.98 GigabitEthernet
0/0/0
192.168.1.128/25 OSPF 10 2 D 192.168.1.99 GigabitEthernet
0/0/0
OSPF routing table status : <Inactive>
Destinations : 0 Routes : 0
[r1]
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R2路由表：
[r2]display ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
Destinations : 3 Routes : 3
OSPF routing table status : <Active>
Destinations : 3 Routes : 3
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 O_ASE 150 1 D 192.168.1.99 GigabitEthernet
0/0/0
192.168.1.1/32 OSPF 10 1 D 192.168.1.97 GigabitEthernet
0/0/0
192.168.1.128/25 OSPF 10 2 D 192.168.1.99 GigabitEthernet
0/0/0
OSPF routing table status : <Inactive>
Destinations : 0 Routes : 0
[r2]
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R3路由表：
[r3]display ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
Destinations : 3 Routes : 3
OSPF routing table status : <Active>
Destinations : 3 Routes : 3
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 O_ASE 150 1 D 192.168.1.130 GigabitEthernet
0/0/1
192.168.1.1/32 OSPF 10 1 D 192.168.1.97 GigabitEthernet
0/0/0
192.168.1.33/32 OSPF 10 1 D 192.168.1.98 GigabitEthernet
0/0/0
OSPF routing table status : <Inactive>
Destinations : 0 Routes : 0
[r3]
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R4路由表：
[r4]display ip routing-table protocol ospf
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
Destinations : 1 Routes : 1
OSPF routing table status : <Active>
Destinations : 1 Routes : 1
Destination/Mask Proto Pre Cost Flags NextHop Interface
192.168.1.0/25 OSPF 10 2 D 192.168.1.129 GigabitEthernet
0/0/0
OSPF routing table status : <Inactive>
Destinations : 0 Routes : 0
[r4]
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3、查看R3是否为DR
实现代码：
<r3>display ospf peer
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结果展示：
[r3]display ospf peer
OSPF Process 1 with Router ID 3.3.3.3
Neighbors
Area 0.0.0.0 interface 192.168.1.99(GigabitEthernet0/0/0)'s neighbors
Router ID: 1.1.1.1 Address: 192.168.1.97
State: Full Mode:Nbr is Slave Priority: 0
DR: 192.168.1.99 BDR: None MTU: 0
Dead timer due in 35 sec
Retrans timer interval: 5
Neighbor is up for 00:02:39
Authentication Sequence: [ 0 ]
Router ID: 192.168.1.98 Address: 192.168.1.98
State: Full Mode:Nbr is Master Priority: 0
DR: 192.168.1.99 BDR: None MTU: 0
Dead timer due in 38 sec
Retrans timer interval: 5
Neighbor is up for 00:02:36
Authentication Sequence: [ 0 ]
Neighbors
Area 0.0.0.1 interface 192.168.1.129(GigabitEthernet0/0/1)'s neighbors
Router ID: 192.168.1.130 Address: 192.168.1.130
State: Full Mode:Nbr is Master Priority: 1
DR: 192.168.1.129 BDR: 192.168.1.130 MTU: 0
Dead timer due in 40 sec
Retrans timer interval: 5
Neighbor is up for 00:01:12
Authentication Sequence: [ 0 ]
[r3]
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4、查看是否全网可达
实现代码：
<r1>ping 192.168.1.33
<r1>ping 192.168.1.65
<r1>ping 192.168.1.129
<r1>ping 4.4.4.1
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结果展示：
[r1]ping 192.168.1.33
PING 192.168.1.33: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.33: bytes=56 Sequence=1 ttl=255 time=60 ms
Reply from 192.168.1.33: bytes=56 Sequence=2 ttl=255 time=30 ms
Reply from 192.168.1.33: bytes=56 Sequence=3 ttl=255 time=40 ms
Reply from 192.168.1.33: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 192.168.1.33: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 192.168.1.33 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/42/60 ms
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[r1]ping 192.168.1.65
PING 192.168.1.65: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.65: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 192.168.1.65: bytes=56 Sequence=2 ttl=255 time=40 ms
Reply from 192.168.1.65: bytes=56 Sequence=3 ttl=255 time=30 ms
Reply from 192.168.1.65: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 192.168.1.65: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 192.168.1.65 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/40/50 ms
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[r1]ping 192.168.1.129
PING 192.168.1.129: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.129: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 192.168.1.129: bytes=56 Sequence=2 ttl=255 time=60 ms
Reply from 192.168.1.129: bytes=56 Sequence=3 ttl=255 time=40 ms
Reply from 192.168.1.129: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 192.168.1.129: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 192.168.1.129 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/48/60 ms
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[r1]ping 4.4.4.1
PING 4.4.4.1: 56 data bytes, press CTRL_C to break
Reply from 4.4.4.1: bytes=56 Sequence=1 ttl=254 time=50 ms
Reply from 4.4.4.1: bytes=56 Sequence=2 ttl=254 time=40 ms
Reply from 4.4.4.1: bytes=56 Sequence=3 ttl=254 time=50 ms
Reply from 4.4.4.1: bytes=56 Sequence=4 ttl=254 time=50 ms
Reply from 4.4.4.1: bytes=56 Sequence=5 ttl=254 time=40 ms
--- 4.4.4.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/46/50 ms
[r1]
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5、缩短路由条目，子网汇总
实现代码：
[r3-ospf-1-area-0.0.0.0]abr-summary 192.168.1.0 255.255.255.128
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路由表对比：
原路由表：
[r4]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 13 Routes : 13
Destination/Mask Proto Pre Cost Flags NextHop Interface
4.4.4.0/24 Direct 0 0 D 4.4.4.1 LoopBack0
4.4.4.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
4.4.4.255/32 Direct 0 0 D 127.0.0.1 LoopBack0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.1/32 OSPF 10 2 D 192.168.1.129 GigabitEthernet
0/0/0
192.168.1.33/32 OSPF 10 2 D 192.168.1.129 GigabitEthernet
0/0/0
192.168.1.96/27 OSPF 10 2 D 192.168.1.129 GigabitEthernet
0/0/0
192.168.1.128/25 Direct 0 0 D 192.168.1.130 GigabitEthernet
0/0/0
192.168.1.130/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[r4]
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之后路由表：
[r4]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
4.4.4.0/24 Direct 0 0 D 4.4.4.1 LoopBack0
4.4.4.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
4.4.4.255/32 Direct 0 0 D 127.0.0.1 LoopBack0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/25 OSPF 10 2 D 192.168.1.129 GigabitEthernet
0/0/0
192.168.1.128/25 Direct 0 0 D 192.168.1.130 GigabitEthernet
0/0/0
192.168.1.130/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[r4]
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6、进行手工认证
实现代码：
R1实现代码：
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ospf authentication-mode md5 1 cipher 123456
[r1-GigabitEthernet0/0/0]quit
[r1]
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R2实现代码：
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ospf authentication-mode md5 1 cipher 123456
[r2-GigabitEthernet0/0/0]quit
[r2]
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R3实现代码：
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ospf authentication-mode md5 1 cipher 123456
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7、配置空接口
实现代码：
[r3]ip route-static 192.168.1.0 25 NULL 0
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路由表：
[r3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 17 Routes : 17
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 O_ASE 150 1 D 192.168.1.130 GigabitEthernet
0/0/1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/25 Static 60 0 D 0.0.0.0 NULL0
192.168.1.1/32 OSPF 10 1 D 192.168.1.97 GigabitEthernet
0/0/0
192.168.1.33/32 OSPF 10 1 D 192.168.1.98 GigabitEthernet
0/0/0
192.168.1.64/27 Direct 0 0 D 192.168.1.65 LoopBack0
192.168.1.65/32 Direct 0 0 D 127.0.0.1 LoopBack0
192.168.1.95/32 Direct 0 0 D 127.0.0.1 LoopBack0
192.168.1.96/27 Direct 0 0 D 192.168.1.99 GigabitEthernet
0/0/0
192.168.1.99/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.127/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.128/25 Direct 0 0 D 192.168.1.129 GigabitEthernet
0/0/1
192.168.1.129/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
192.168.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[r3]
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8、再次此时网络连通性
实现代码：
<r1>ping 192.168.1.33
<r1>ping 192.168.1.65
<r1>ping 192.168.1.129
<r1>ping 4.4.4.1
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结果展示：
[r1]ping 192.168.1.33
PING 192.168.1.33: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.33: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 192.168.1.33: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 192.168.1.33: bytes=56 Sequence=3 ttl=255 time=40 ms
Reply from 192.168.1.33: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 192.168.1.33: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 192.168.1.33 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/40/50 ms
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[r1]ping 192.168.1.65
PING 192.168.1.65: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.65: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 192.168.1.65: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 192.168.1.65: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 192.168.1.65: bytes=56 Sequence=4 ttl=255 time=60 ms
Reply from 192.168.1.65: bytes=56 Sequence=5 ttl=255 time=40 ms
--- 192.168.1.65 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/48/60 ms
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[r1]ping 192.168.1.129
PING 192.168.1.129: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.129: bytes=56 Sequence=1 ttl=255 time=60 ms
Reply from 192.168.1.129: bytes=56 Sequence=2 ttl=255 time=40 ms
Reply from 192.168.1.129: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 192.168.1.129: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 192.168.1.129: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 192.168.1.129 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/50/60 ms
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[r1]ping 4.4.4.1
PING 4.4.4.1: 56 data bytes, press CTRL_C to break
Reply from 4.4.4.1: bytes=56 Sequence=1 ttl=254 time=40 ms
Reply from 4.4.4.1: bytes=56 Sequence=2 ttl=254 time=70 ms
Reply from 4.4.4.1: bytes=56 Sequence=3 ttl=254 time=60 ms
Reply from 4.4.4.1: bytes=56 Sequence=4 ttl=254 time=50 ms
Reply from 4.4.4.1: bytes=56 Sequence=5 ttl=254 time=40 ms
--- 4.4.4.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/52/70 ms
[r1]
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实验完成！
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