查看路由器上的接口状态

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display ip interface brief

display ip interface brief命令用来查看接口与IP相关的简要信息，包括IP地址、子网掩码、物理状态和协议状态以及处于不同状态的接口数目等。

查看路由器上的路由表情况

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display ip routing-table

配置路由物理接口的IP地址

R1

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[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]ip address 10.0.13.1 24
[R1-GigabitEthernet0/0/1]quit
[R1]interface GigabitEthernet 0/0/3
[R1-GigabitEthernet0/0/3]ip address 10.0.12.1 24
[R1-GigabitEthernet0/0/3]quit

R2

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[R2]interface GigabitEthernet 0/0/3
[R2-GigabitEthernet0/0/3]ip address 10.0.12.2 24
[R2-GigabitEthernet0/0/3]quit
[R2]interface GigabitEthernet 0/0/2
[R2-GigabitEthernet0/0/2]ip address 10.0.23.2 24
[R2-GigabitEthernet0/0/2]quit

R3

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[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]ip address 10.0.13.3 24
[R3-GigabitEthernet0/0/1]quit
[R3]interface GigabitEthernet 0/0/2
[R3-GigabitEthernet0/0/2]ip address 10.0.23.3 24
[R3-GigabitEthernet0/0/2]quit

联通性测试

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[R1]ping 10.0.12.2
  PING 10.0.12.2: 56  data bytes, press CTRL_C to break
    Reply from 10.0.12.2: bytes=56 Sequence=1 ttl=255 time=80 ms
    Reply from 10.0.12.2: bytes=56 Sequence=2 ttl=255 time=50 ms
    Reply from 10.0.12.2: bytes=56 Sequence=3 ttl=255 time=40 ms
    Reply from 10.0.12.2: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 10.0.12.2: bytes=56 Sequence=5 ttl=255 time=10 ms

  --- 10.0.12.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 10/42/80 ms

[R1]ping 10.0.13.3
  PING 10.0.13.3: 56  data bytes, press CTRL_C to break
    Reply from 10.0.13.3: bytes=56 Sequence=1 ttl=255 time=60 ms
    Reply from 10.0.13.3: bytes=56 Sequence=2 ttl=255 time=50 ms
    Reply from 10.0.13.3: bytes=56 Sequence=3 ttl=255 time=40 ms
    Reply from 10.0.13.3: bytes=56 Sequence=4 ttl=255 time=10 ms
    Reply from 10.0.13.3: bytes=56 Sequence=5 ttl=255 time=50 ms

  --- 10.0.13.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 10/42/60 ms

查看R1的路由表

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[R1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 6        Routes : 6        

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

      10.0.12.0/24  Direct  0    0           D   10.0.12.1       GigabitEthernet 0/0/3
      10.0.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet 0/0/3
      10.0.13.0/24  Direct  0    0           D   10.0.13.1       GigabitEthernet 0/0/1
      10.0.13.1/32  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

5.创建并配置