eNSP实验一（静态）

news2024/9/27 15:33:21

目录

 命名更改

子网划分

配置IP

DHCP配置

配置静态路由

NET设置

Telnet及端口映射

浮动静态路由

 命名更改

<Huawei>system-view 
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R1
[R1]

1、R6为ISP，接口IP地址均为公有地址(12.0.0.0/24)，该设备只能配置IP地址，之后不能再对其进行任何配置；
2、R1-R5为局域网，私有IP地址192.168.1.0/24，请合理分配；
3、R1、R2、R4，各有两个环回IP地址；R5,R6（1.1.1.0/24）各有一个环回地址；所有路由器上环回均代表连接用户的接口；

子网划分

考虑到路由表尽量小，后续将会使用子网汇总，所以将同一个路由器的两个环回接口划分到一个网段，后续再分。因为骨干链路只需要两个IP，所以主机位有两位即可，骨干链路的网段需要30个网络位，2个主机位。将骨干链路都放在一个网段，同一个路由器的环回都放在一个网段，即一共需要6个网段（网络位为27位）。且骨干链路有6条，需要3个主机位换为网络位，即刚好满足上述骨干链路30个网络位2个主机位的条件。

骨干链路 --- 192.168.1.0000 0000

        R1-R2 --- 192.168.1.0000 0000 --- 192.168.1.0/30

        R2-R4 --- 192.168.1.0000 0100 --- 192.168.1.4/30

        R1-R3 --- 192.168.1.0000 1000 --- 192.168.1.8/30

        R3-R4 --- 192.168.1.0000 1100 --- 192.168.1.12/30

        R4-R5(1000M) --- 192.168.1.0001 0000 --- 192.168.1.16/30

        R4-R5(100M) --- 192.168.1.0001 0100 --- 192.168.1.20/30

R1环回 --- 192.168.1.0010 0000

        L0 --- 192.168.1.0010 0000 --- 192.168.1.32/28

        L1 --- 192.168.1.0011 0000 --- 192.168.1.48/28

R2环回 --- 192.168.1.0100 0000

        L0 --- 192.168.1.0100 0000 --- 192.168.1.64/28

        L1 --- 192.168.1.0101 0000 --- 192.168.1.80/28

R3子网 --- 192.168.1.0110 0000 --- 192.168.1.96/27

R4环回 --- 192.168.1.1000 0000

        L0 --- 192.168.1.1000 0000 --- 192.168.1.128/28

        L1 --- 192.168.1.1001 0000 --- 192.168.1.144/28

R5环回 --- 192.168.1.1010 0000 --- 192.168.1.160/27

192.168.1.1100 0000 --- 闲置

192.168.1.1110 0000 --- 闲置

结果：

配置IP

R1：

The device is running!

<R1>
Mar 18 2024 08:50:27-08:00 R1 %%01IFPDT/4/IF_STATE(l)[0]:Interface GigabitEthern
et0/0/0 has turned into UP state.
<R1>
Mar 18 2024 08:50:27-08:00 R1 %%01IFPDT/4/IF_STATE(l)[1]:Interface GigabitEthern
et0/0/1 has turned into UP state.
<R1>system-view 
Enter system view, return user view with Ctrl+Z.
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ip address 192.168.1.1 30
Mar 18 2024 08:51:47-08:00 R1 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R1-GigabitEthernet0/0/0]quit
[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]ip address 192.168.1.9 30
Mar 18 2024 08:52:49-08:00 R1 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R1-GigabitEthernet0/0/1]quit
[R1]interface LoopBack 0	
[R1-LoopBack0]ip address 192.168.1.33 28	
[R1-LoopBack0]quit 
[R1]interface LoopBack 1
[R1-LoopBack1]ip address 192.168.1.49 28
[R1-LoopBack1]quit 
[R1]display ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 5
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 5
The number of interface that is DOWN in Protocol is 1

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              192.168.1.1/30       up         up        
GigabitEthernet0/0/1              192.168.1.9/30       up         up        
GigabitEthernet0/0/2              unassigned           down       down      
LoopBack0                         192.168.1.33/28      up         up(s)     
LoopBack1                         192.168.1.49/28      up         up(s)     
NULL0                             unassigned           up         up(s)     
[R1]

 R2：

The device is running!

<R2>system-view 
Enter system view, return user view with Ctrl+Z.
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 192.168.1.2 30
Mar 18 2024 09:04:27-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R2-GigabitEthernet0/0/0]quit
[R2]interface  GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]ip address 192.168.1.5 30
Mar 18 2024 09:05:05-08:00 R2 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R2-GigabitEthernet0/0/1]quit
[R2]interface LoopBack 0
[R2-LoopBack0]ip address 192.168.1.65 28	
[R2-LoopBack0]quit 
[R2]interface LoopBack 1
[R2-LoopBack1]ip address 192.168.1.81 28
[R2-LoopBack1]quit
[R2]display ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 5
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 5
The number of interface that is DOWN in Protocol is 1

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              192.168.1.2/30       up         up        
GigabitEthernet0/0/1              192.168.1.5/30       up         up        
GigabitEthernet0/0/2              unassigned           down       down      
LoopBack0                         192.168.1.65/28      up         up(s)     
LoopBack1                         192.168.1.81/28      up         up(s)     
NULL0                             unassigned           up         up(s)     
[R2]

 R3：

The device is running!

<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]int g 0/0/0
[R3-GigabitEthernet0/0/0]ip add 192.168.1.10 30
Mar 18 2024 09:14:32-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R3-GigabitEthernet0/0/0]q
[R3]int g 0/0/1
[R3-GigabitEthernet0/0/1]ip add 192.168.1.13 30
Mar 18 2024 09:14:57-08:00 R3 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R3-GigabitEthernet0/0/1]q
[R3]int g 0/0/2
[R3-GigabitEthernet0/0/2]ip add 192.168.1.97 27
Mar 18 2024 09:48:48-08:00 R3 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[R3-GigabitEthernet0/0/2]q
[R3]dis ip int b
*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 0
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 0

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              192.168.1.10/30      up         up        
GigabitEthernet0/0/1              192.168.1.13/30      up         up        
GigabitEthernet0/0/2              192.168.1.97/27      up         up        
NULL0                             unassigned           up         up(s)     
[R3]

R4：

The device is running!

<R4>sys
Enter system view, return user view with Ctrl+Z.
[R4]int g 0/0/0
[R4-GigabitEthernet0/0/0]ip add 192.168.1.6 30
[R4-GigabitEthernet0/0/0]
Mar 18 2024 09:17:01-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R4-GigabitEthernet0/0/0]q
[R4]int g 0/0/1
[R4-GigabitEthernet0/0/1]ip add 192.168.1.14 30
Mar 18 2024 09:17:29-08:00 R4 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R4-GigabitEthernet0/0/1]q
[R4]int l 0
[R4-LoopBack0]ip add 192.168.1.129 28
[R4-LoopBack0]q
[R4]int l 1
[R4-LoopBack1]ip add 192.168.1.145 28
[R4-LoopBack1]q
[R4]int g 0/0/2
[R4-GigabitEthernet0/0/2]ip add 192.168.1.17 30
[R4-GigabitEthernet0/0/2]
Mar 18 2024 09:25:20-08:00 R4 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[R4-GigabitEthernet0/0/2]q
[R4]int g 4/0/0
[R4-GigabitEthernet4/0/0]ip add 192.168.1.21 30
[R4-GigabitEthernet4/0/0]
Mar 18 2024 09:26:05-08:00 R4 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP 
on the interface GigabitEthernet4/0/0 has entered the UP state. 
[R4-GigabitEthernet4/0/0]q
[R4]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 7
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 7
The number of interface that is DOWN in Protocol is 0

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              192.168.1.6/30       up         up        
GigabitEthernet0/0/1              192.168.1.14/30      up         up        
GigabitEthernet0/0/2              192.168.1.17/30      up         up        
GigabitEthernet4/0/0              192.168.1.21/30      up         up        
LoopBack0                         192.168.1.129/28     up         up(s)     
LoopBack1                         192.168.1.145/28     up         up(s)     
NULL0                             unassigned           up         up(s)     
[R4]

R5：

The device is running!

<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]int g 0/0/0
[R5-GigabitEthernet0/0/0]ip add 192.168.1.18 30
[R5-GigabitEthernet0/0/0]
Mar 18 2024 09:31:20-08:00 R5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R5-GigabitEthernet0/0/0]q
[R5]int g 0/0/2
[R5-GigabitEthernet0/0/2]ip add 192.168.1.22 30
Mar 18 2024 09:31:49-08:00 R5 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[R5-GigabitEthernet0/0/2]q
[R5]int g 0/0/1
[R5-GigabitEthernet0/0/1]ip add 12.0.0.1 24
Mar 18 2024 09:32:29-08:00 R5 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R5-GigabitEthernet0/0/1]q
[R5]int l 0
[R5-LoopBack0]ip add 192.168.1.161 27
[R5-LoopBack0]q
[R5]dis ip int b
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 5
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 5
The number of interface that is DOWN in Protocol is 0

Interface                         IP Address/Mask      Physical   Protocol  
GigabitEthernet0/0/0              192.168.1.18/30      up         up        
GigabitEthernet0/0/1              12.0.0.1/24          up         up        
GigabitEthernet0/0/2              192.168.1.22/30      up         up        
LoopBack0                         192.168.1.161/27     up         up(s)     
NULL0                             unassigned           up         up(s)     
[R5]

R6：

The device is running!

<R6>sys
Enter system view, return user view with Ctrl+Z.
[R6]int g 0/0/0
[R6-GigabitEthernet0/0/0]ip add 12.0.0.2 24
[R6-GigabitEthernet0/0/0]
Mar 18 2024 09:35:35-08:00 R6 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R6-GigabitEthernet0/0/0]q
[R6]int l 0
[R6-LoopBack0]ip add 1.1.1.1 24
[R6-LoopBack0]q
[R6]dis ip int b
*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              12.0.0.2/24          up         up        
GigabitEthernet0/0/1              unassigned           down       down      
GigabitEthernet0/0/2              unassigned           down       down      
LoopBack0                         1.1.1.1/24           up         up(s)     
NULL0                             unassigned           up         up(s)     
[R6]


4、R3下面的两台PC通过DHCP自动获取IP地址；

DHCP配置

该网段通过R3与外界沟通，故在R3的0/0/2接口上配置DHCP服务：

<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]dhcp enable 
Info: The operation may take a few seconds. Please wait for a moment.done.
[R3]ip pool a
Info: It's successful to create an IP address pool.	
[R3-ip-pool-a]network 192.168.1.96 mask 27	
[R3-ip-pool-a]gateway-list 192.168.1.97	
[R3-ip-pool-a]dns-list 114.114.114.114
[R3-ip-pool-a]q
[R3]int g 0/0/2
[R3-GigabitEthernet0/0/2]dhcp select global

将PC的IP获取方式改为HDCP：

查看IP是否获取成功：


5、选路最佳，路由表尽量小，避免环路；

配置静态路由

R1：

<R1>sys
Enter system view, return user view with Ctrl+Z.
[R1]ip route-static 192.168.1.4 30 192.168.1.2
[R1]ip route-static 192.168.1.12 30 192.168.1.10
[R1]ip route-static 192.168.1.96 27 192.168.1.10
[R1]ip route-static 192.168.1.16 30 192.168.1.2
[R1]ip route-static 192.168.1.16 30 192.168.1.10
[R1]ip route-static 192.168.1.20 30 192.168.1.2
[R1]ip route-static 192.168.1.20 30 192.168.1.10
[R1]ip route-static 0.0.0.0 0 192.168.1.2	
[R1]ip route-static 192.168.1.64 27 192.168.1.2
[R1]ip route-static 192.168.1.128 27 192.168.1.2
[R1]ip route-static 192.168.1.128 27 192.168.1.10
[R1]ip route-static 192.168.1.160 27 192.168.1.2
[R1]ip route-static 192.168.1.160 27 192.168.1.10

 防环设计：

[R1]ip route-static 192.168.1.32 27 NULL 0

R2：

<R2>sys
Enter system view, return user view with Ctrl+Z.
[R2]ip route-static 192.168.1.32 27 192.168.1.1
[R2]ip route-static 192.168.1.8 30 192.168.1.1
[R2]ip route-static 192.168.1.96 27 192.168.1.1
[R2]ip route-static 192.168.1.96 27 192.168.1.6
[R2]ip route-static 192.168.1.12 30 192.168.1.6
[R2]ip route-static 0.0.0.0 0 192.168.1.6

 防环：

[R2]ip route-static 192.168.1.64 27 NULL 0

R3：

<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]ip route-static 192.168.1.32 27 192.168.1.9
[R3]ip route-static 192.168.1.0 30 192.168.1.9
[R3]ip route-static 192.168.1.64 27 192.168.1.9
[R3]ip route-static 192.168.1.64 27 192.168.1.14
[R3]ip route-static 192.168.1.4 30 192.168.1.14
[R3]ip route-static 0.0.0.0 0 192.168.1.14

R4：

<R4>sys
Enter system view, return user view with Ctrl+Z.
[R4]ip route-static 192.168.1.32 27 192.168.1.5
[R4]ip route-static 192.168.1.32 27 192.168.1.13
[R4]ip route-static 192.168.1.8 30 192.168.1.13
[R4]ip route-static 192.168.1.96 27 192.168.1.13
[R4]ip route-static 192.168.1.0 30 192.168.1.5
[R4]ip route-static 192.168.1.64 27 192.168.1.5
[R4]ip route-static 192.168.1.160 27 192.168.1.18
[R4]ip route-static 192.168.1.160 27 192.168.1.22
[R4]ip route-static 0.0.0.0 0 192.168.1.18
[R4]ip route-static 0.0.0.0 0 192.168.1.22

防环： 

[R4]ip route-static 192.168.1.128 27 NULL 0

 

R5：

<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]ip route-static 0.0.0.0 0 192.168.1.17
[R5]ip route-static 0.0.0.0 0 192.168.1.21
[R5]ip route-static 1.1.1.0 24 12.0.0.2

由此内网全通

注意：一般来说，缺省路由在网关（共网和私网间的）配置一定得通向公网。这里因为实验特殊，直接将缺省路由通向内网，是为了节省时间，现实一定不允许！只能配置静态。


6、R1-R5均可以访问R6的环回；

NET设置

使用ACL抓取流量：

<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]acl 2000
[R5-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255

在R5上配置easy ip：

[R5-acl-basic-2000]q
[R5]int g 0/0/1
[R5-GigabitEthernet0/0/1]nat outbound 2000

完成访问公网：


7、R6 telnet R5的公有地址时，实际登录到R1上；

Telnet及端口映射

R1配置telnet：

<R1>sys
Enter system view, return user view with Ctrl+Z.
[R1]aaa	
[R1-aaa]local-user a1 privilege level 15 password cipher 123456
Info: Add a new user.	
[R1-aaa]local-user a1 service-type telnet
[R1-aaa]user-interface vty 0 4
[R1-ui-vty0-4]authentication-mode aaa

在R5配置端口映射：

<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]int g 0/0/1
[R5-GigabitEthernet0/0/1]nat server protocol tcp global current-interface 23 ins
ide 192.168.1.1 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

尝试访问：


8、R4与R5正常通过1000M链路，故障时通过100m链路； 

浮动静态路由

16/30网段为1000M，20/30网段为100M。

使用静态路由设置优先级：

R4：

因为静态路由默认优先级为60，所以只需要把100M的优先级调大即可：

[R4]ip route-static 0.0.0.0 0 192.168.1.22 preference 61
Info: Succeeded in modifying route.
Mar 22 2024 08:44:17-08:00 R4 %%01RM/4/IPV4_DEFT_RT_CHG(l)[0]:IPV4 default Route
 is changed. (ChangeType=Delete, InstanceId=0, Protocol=Static, ExitIf=GigabitEt
hernet4/0/0, Nexthop=192.168.1.22, Neighbour=0.0.0.0, Preference=1023410176, Lab
el=NULL, Metric=0) 
[R4]dis ip routing-table 
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 29       Routes : 31       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        0.0.0.0/0   Static  60   0          RD   192.168.1.18    GigabitEthernet
0/0/2
      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
    192.168.1.0/30  Static  60   0          RD   192.168.1.5     GigabitEthernet
0/0/0
    192.168.1.4/30  Direct  0    0           D   192.168.1.6     GigabitEthernet
0/0/0
    192.168.1.6/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
    192.168.1.7/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
    192.168.1.8/30  Static  60   0          RD   192.168.1.13    GigabitEthernet
0/0/1
   192.168.1.12/30  Direct  0    0           D   192.168.1.14    GigabitEthernet
0/0/1
   192.168.1.14/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
   192.168.1.15/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
   192.168.1.16/30  Direct  0    0           D   192.168.1.17    GigabitEthernet
0/0/2
   192.168.1.17/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.1.19/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.1.20/30  Direct  0    0           D   192.168.1.21    GigabitEthernet
4/0/0
   192.168.1.21/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
   192.168.1.23/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
   192.168.1.32/27  Static  60   0          RD   192.168.1.5     GigabitEthernet
0/0/0
                    Static  60   0          RD   192.168.1.13    GigabitEthernet
0/0/1
   192.168.1.64/27  Static  60   0          RD   192.168.1.5     GigabitEthernet
0/0/0
   192.168.1.96/27  Static  60   0          RD   192.168.1.13    GigabitEthernet
0/0/1
  192.168.1.128/28  Direct  0    0           D   192.168.1.129   LoopBack0
  192.168.1.129/32  Direct  0    0           D   127.0.0.1       LoopBack0
  192.168.1.143/32  Direct  0    0           D   127.0.0.1       LoopBack0
  192.168.1.144/28  Direct  0    0           D   192.168.1.145   LoopBack1
  192.168.1.145/32  Direct  0    0           D   127.0.0.1       LoopBack1
  192.168.1.159/32  Direct  0    0           D   127.0.0.1       LoopBack1
  192.168.1.160/27  Static  60   0          RD   192.168.1.18    GigabitEthernet
0/0/2
                    Static  60   0          RD   192.168.1.22    GigabitEthernet
4/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

[R4]

R5：

与上面同理：

<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]dis ip rou	
[R5]dis ip routing-table 
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 18       Routes : 19       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        0.0.0.0/0   Static  60   0          RD   192.168.1.17    GigabitEthernet
0/0/0
                    Static  60   0          RD   192.168.1.21    GigabitEthernet
0/0/2
        1.1.1.0/24  Static  60   0          RD   12.0.0.2        GigabitEthernet
0/0/1
       12.0.0.0/24  Direct  0    0           D   12.0.0.1        GigabitEthernet
0/0/1
       12.0.0.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
     12.0.0.255/32  Direct  0    0           D   127.0.0.1       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
   192.168.1.16/30  Direct  0    0           D   192.168.1.18    GigabitEthernet
0/0/0
   192.168.1.18/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.1.19/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.1.20/30  Direct  0    0           D   192.168.1.22    GigabitEthernet
0/0/2
   192.168.1.22/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.1.23/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
  192.168.1.160/27  Direct  0    0           D   192.168.1.161   LoopBack0
  192.168.1.161/32  Direct  0    0           D   127.0.0.1       LoopBack0
  192.168.1.191/32  Direct  0    0           D   127.0.0.1       LoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

[R5]ip route-static 0.0.0.0 0 192.168.1.21 preference 61
Info: Succeeded in modifying route.
Mar 22 2024 08:49:44-08:00 R5 %%01RM/4/IPV4_DEFT_RT_CHG(l)[0]:IPV4 default Route
 is changed. (ChangeType=Delete, InstanceId=0, Protocol=Static, ExitIf=GigabitEt
hernet0/0/2, Nexthop=192.168.1.21, Neighbour=0.0.0.0, Preference=1023410176, Lab
el=NULL, Metric=0) 
[R5]
[R5]dis ip routing-table 
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 18       Routes : 18       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        0.0.0.0/0   Static  60   0          RD   192.168.1.17    GigabitEthernet
0/0/0
        1.1.1.0/24  Static  60   0          RD   12.0.0.2        GigabitEthernet
0/0/1
       12.0.0.0/24  Direct  0    0           D   12.0.0.1        GigabitEthernet
0/0/1
       12.0.0.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
     12.0.0.255/32  Direct  0    0           D   127.0.0.1       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
   192.168.1.16/30  Direct  0    0           D   192.168.1.18    GigabitEthernet
0/0/0
   192.168.1.18/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.1.19/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.1.20/30  Direct  0    0           D   192.168.1.22    GigabitEthernet
0/0/2
   192.168.1.22/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.1.23/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
  192.168.1.160/27  Direct  0    0           D   192.168.1.161   LoopBack0
  192.168.1.161/32  Direct  0    0           D   127.0.0.1       LoopBack0
  192.168.1.191/32  Direct  0    0           D   127.0.0.1       LoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

[R5]

优先级低的条目将暂时不会显示在路由条目上。

配置完成

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