組網需求

企業使用者要求不需要花費大量人力去維護網路效能，當網路中出現網路拓撲變動時，可以通過路由更新，計算出新的路由。因此需要使用OSPF動態路由協議保證網路的穩定，實現互連互通。

1、拓撲圖

2、配置思路

1、介面及PC地址配置

2、OSPF路由協議配置

1、介面及PC地址配置

（PC機採用DHCP地址，路由器配置DHCP服務，為PC分配地址）

AR1路由器

<Huawei>undo terminal monitor
<Huawei>sys
[Huawei]sysname AR1
[AR1]int g0/0/0
[AR1-GigabitEthernet0/0/0]ip add 192.168.0.1 24
[AR1-GigabitEthernet0/0/0]quit
[AR1]int g0/0/2
[AR1-GigabitEthernet0/0/2]ip add 192.168.1.254 24
[AR1-GigabitEthernet0/0/2]quit
[AR1]dhcp enable
[AR1]dhcp server group 10
[AR1-dhcp-server-group-10]dhcp-server 192.168.1.0
[AR1-dhcp-server-group-10]quit
[AR1]int g0/0/2
[AR1-GigabitEthernet0/0/2]dhcp select interface
[AR1-GigabitEthernet0/0/2]quit
[AR1]

AR2省略

2、OSPF路由協議配置

AR1

[AR1]interface LoopBack 0
[AR1-LoopBack0]ip add 1.1.1.1 32
[AR1-LoopBack0]quit
[AR1]router id 1.1.1.1
[AR1]ospf
[AR1-ospf-1]area 0
[AR1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
[AR1-ospf-1-area-0.0.0.0]network 192.168.0.0 0.0.0.255
[AR1-ospf-1-area-0.0.0.0]quit
[AR1-ospf-1]quit

AR2

[AR2]interface LoopBack 0
[AR2-LoopBack0]ip add 2.2.2.2 32
[AR2-LoopBack0]quit
[AR2]router id 2.2.2.2
[AR2]ospf
[AR2-ospf-1]area 0
[AR2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[AR2-ospf-1-area-0.0.0.0]network 192.168.0.0 0.0.0.255
[AR2-ospf-1-area-0.0.0.0]quit
[AR2-ospf-1]quit

3、檢視AR1路由表

（去往192.168.2.0/24網段的路由存在了，協議為OSPF）

[AR1]dis 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

    192.168.2.0/24  OSPF    10   2           D   192.168.0.2     GigabitEthernet
0/0/0

OSPF routing table status : <Inactive>
         Destinations : 0        Routes : 0

[AR1]

測試PC1和PC2的聯通性

PC>ipconfig

Link local IPv6 address...........: fe80::5689:98ff:fe24:5fd9
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 192.168.1.253
Subnet mask.......................: 255.255.255.0
Gateway...........................: 192.168.1.254
Physical address..................: 54-89-98-24-5F-D9
DNS server........................:

PC>ping 192.168.2.253

Ping 192.168.2.253: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.2.253: bytes=32 seq=2 ttl=126 time=63 ms
From 192.168.2.253: bytes=32 seq=3 ttl=126 time=62 ms
From 192.168.2.253: bytes=32 seq=4 ttl=126 time=63 ms
From 192.168.2.253: bytes=32 seq=5 ttl=126 time=62 ms

--- 192.168.2.253 ping statistics ---
  5 packet(s) transmitted
  4 packet(s) received
  20.00% packet loss
  round-trip min/avg/max = 0/62/63 ms

PC>

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