按照规划的网段配置PC 地址

在AR1 上配置IP地址

[Huawei-GigabitEthernet0/0/2]ip address 10.0.2.1 24
[Huawei-GigabitEthernet0/0/1]ip address 192.168.2.1 24
[Huawei-GigabitEthernet0/0/0]ip address 192.168.1.1 24

在AR2上配置IP地址

[AR2-GigabitEthernet0/0/0]ip address 192.168.1.2 24

[AR2-GigabitEthernet0/0/2]ip address 192.168.2.2 24

[AR2-GigabitEthernet0/0/1]ip address 192.168.3.1 24

[AR2-GigabitEthernet4/0/0]ip address 192.168.4.1 24

[AR2-GigabitEthernet3/0/0]ip address 10.0.1.1 24

AR3 配置IP地址

[Huawei-GigabitEthernet0/0/0]ip address 192.168.3.2 24
[Huawei-GigabitEthernet0/0/1]ip address 192.168.4.2 24
[Huawei-GigabitEthernet0/0/2]ip address 10.0.3.1 24

AR1 上配置静态路由如下

ip route-static 10.0.1.0 24 192.168.1.2
ip route-static 10.0.1.0 24 192.168.2.2

AR2上配置静态路由如下

ip route-static 10.0.2.0 255.255.255.0 192.168.1.1
ip route-static 10.0.2.0 255.255.255.0 192.168.2.1

PC1 上PING PC3

PC>ping 10.0.1.2

Ping 10.0.1.2: 32 data bytes, Press Ctrl_C to break
From 10.0.1.2: bytes=32 seq=1 ttl=126 time=15 ms
From 10.0.1.2: bytes=32 seq=2 ttl=126 time=16 ms
From 10.0.1.2: bytes=32 seq=3 ttl=126 time=31 ms
From 10.0.1.2: bytes=32 seq=4 ttl=126 time=16 ms
From 10.0.1.2: bytes=32 seq=5 ttl=126 time=15 ms

--- 10.0.1.2 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 15/18/31 ms

AR2上配置命令如下

ip route-static 10.0.3.0 255.255.255.0 192.168.3.2
ip route-static 10.0.3.0 255.255.255.0 192.168.4.2

AR3上配置命令如下

ip route-static 10.0.2.0 255.255.255.0 192.168.3.1
ip route-static 10.0.2.0 255.255.255.0 192.168.4.1

PC1 上PING PC2

PC>ping 10.0.3.2

Ping 10.0.3.2: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 10.0.3.2: bytes=32 seq=2 ttl=125 time=31 ms
From 10.0.3.2: bytes=32 seq=3 ttl=125 time=16 ms
From 10.0.3.2: bytes=32 seq=4 ttl=125 time=31 ms
From 10.0.3.2: bytes=32 seq=5 ttl=125 time=16 ms

--- 10.0.3.2 ping statistics ---
  5 packet(s) transmitted
  4 packet(s) received
  20.00% packet loss
  round-trip min/avg/max = 0/23/31 ms

AR3上缺少一条去往PC3的路由条目，故PC2 和PC3不能互通

PC>ping 10.0.3.2

Ping 10.0.3.2: 32 data bytes, Press Ctrl_C to break
Request timeout!
Request timeout!
Request timeout!
Request timeout!
Request timeout!

--- 10.0.3.2 ping statistics ---
  5 packet(s) transmitted
  0 packet(s) received
  100.00% packet loss

AR1和AR2做负载均衡

[Huawei]dis ip routing-table 
Route Flags: R - relay, D - download to fib
Routing Tables: Public
         Destinations : 15       Routes : 17       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.1.0/24  Static  60   0          RD   192.168.1.2     GigabitEthernet 0/0/0
                    Static  60   0          RD   192.168.2.2     GigabitEthernet 0/0/1
       10.0.2.0/24  Direct  0    0           D   10.0.2.1        GigabitEthernet 0/0/2
       10.0.2.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet 0/0/2
     10.0.2.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet 0/0/2
       10.0.3.0/24  Static  60   0          RD   192.168.1.2     GigabitEthernet 0/0/0
                      Static  60   0          RD   192.168.2.2     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
    192.168.1.0/24  Direct  0    0           D   192.168.1.1     GigabitEthernet0/0/0
    192.168.1.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
  192.168.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
    192.168.2.0/24  Direct  0    0           D   192.168.2.1     GigabitEthernet0/0/1
    192.168.2.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
  192.168.2.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

配置AR2 和AR3 路由备份如下

[AR2]ip route-static 10.0.3.0 24 192.168.3.2 preference 100

在AR2上查看静态路由表

[AR2]dis ip routing-table protocol static 
Route Flags: R - relay, D - download to fib

Public routing table : Static
         Destinations : 2        Routes : 4        Configured Routes : 4

Static routing table status : <Active>
         Destinations : 2        Routes : 3

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.2.0/24  Static  60   0          RD   192.168.1.1     GigabitEthernet
0/0/0
                    Static  60   0          RD   192.168.2.1     GigabitEthernet
0/0/2
       10.0.3.0/24  Static  60   0          RD   192.168.4.2     GigabitEthernet
4/0/0

Static routing table status : <Inactive>
         Destinations : 1        Routes : 1

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.3.0/24  Static  100  0          R    192.168.3.2     GigabitEthernet
0/0/1

路由已备份成功