OSPF 单区域实验

实验拓扑

实验需求

1. 按照图示配置 IP 地址
2. 按照图示分区域配置 OSPF ，实现全网互通
3. 为了路由结构稳定，要求路由器使用环回口作为 Router-id

实验步骤

每台路由器都要将本地的所有直连网段宣告至 OSPF 区域下

IP 地址配置

AR1 配置

[AR1-GigabitEthernet0/0/1]ip address 10.0.1.1 24
[AR1-GigabitEthernet0/0/0]ip address 192.168.1.1 24
[AR1-LoopBack0]ip address 1.1.1.1 32

AR2配置

[AR2-GigabitEthernet0/0/0]ip address 192.168.1.2 24
[AR2-GigabitEthernet0/0/1]ip address 192.168.2.1 24
[Huawei-LoopBack0]ip address 2.2.2.2 32

AR3配置

[Huawei-GigabitEthernet0/0/0]ip address 192.168.2.2 24
[Huawei-GigabitEthernet0/0/1]ip address 20.0.1.1 24
[AR3-LoopBack0]ip address 3.3.3.3 32

配置好主机 IP地址及网关

AR1配置命令

[AR1]OSPF 1 router-id 1.1.1.1
[AR1-ospf-1]area 0  
[AR1-ospf-1-area-0.0.0.0]network 10.0.1.0 0.0.0.255
[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 1.1.1.1 0.0.0.0

AR2配置命令

[Huawei]ospf 1 router-id 2.2.2.2
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0

AR3配置命令

[AR3]ospf 1 router-id 3.3.3.3
[Huawei-ospf-1]area 0
[AR3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[AR3-ospf-1-area-0.0.0.0]network 20.0.1.0 0.0.0.255
[AR3-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

在AR1 上查看OSPF 邻居表

[AR1]dis ospf peer 

     OSPF Process 1 with Router ID 1.1.1.1
         Neighbors 

 Area 0.0.0.0 interface 192.168.1.1(GigabitEthernet0/0/0)'s neighbors
 Router ID: 192.168.1.2      Address: 192.168.1.2     
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 192.168.1.2  BDR: 192.168.1.1  MTU: 0    
   Dead timer due in 37  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:23:23     
   Authentication Sequence: [ 0 ] 

AR1]dis ospf peer brief 

     OSPF Process 1 with Router ID 1.1.1.1
          Peer Statistic Information
 -----------------------------------------------------------------------
 Area Id          Interface                        Neighbor id      State    
 0.0.0.0          GigabitEthernet0/0/0             192.168.1.2      Full        

查看OSPF 路由表

[AR1]dis ip routing-table protocol ospf 
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        2.2.2.2/32  OSPF    10   1           D   192.168.1.2     GigabitEthernet0/0/0
        3.3.3.3/32  OSPF    10   2           D   192.168.1.2     GigabitEthernet0/0/0
       20.0.1.0/24  OSPF    10   3           D   192.168.1.2     GigabitEthernet0/0/0
    192.168.2.0/24  OSPF    10   2           D   192.168.1.2     GigabitEthernet0/0/0

PC1 PING PC2 查看连通性

PC>ping 20.0.1.2

Ping 20.0.1.2: 32 data bytes, Press Ctrl_C to break
From 20.0.1.2: bytes=32 seq=1 ttl=125 time=31 ms
From 20.0.1.2: bytes=32 seq=2 ttl=125 time=32 ms
From 20.0.1.2: bytes=32 seq=3 ttl=125 time=15 ms
From 20.0.1.2: bytes=32 seq=4 ttl=125 time=32 ms
From 20.0.1.2: bytes=32 seq=5 ttl=125 time=15 ms

--- 20.0.1.2 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 15/25/32 ms

OSPF 多区域配置，ABR 聚合等高级配置 后期更新！