3.4 OSPF配置详解

1.OSPF单区域配置

1）基本配置

[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]are
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[R1-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255
[R1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[R2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255

2）查看邻居表

[R1]display ospf peer 
         OSPF Process 1 with Router ID 1.1.1.1
                 Neighbors 
 Area 0.0.0.0 interface 12.1.1.1(GigabitEthernet0/0/0)'s neighbors
 Router ID: 2.2.2.2          Address: 12.1.1.2        
   State: Full  Mode:Nbr is  Master  Priority: 1
   DR: 12.1.1.2  BDR: 12.1.1.1  MTU: 0    
   Dead timer due in 40  sec 
   Retrans timer interval: 5 
   Neighbor is up for 00:02:48     
   Authentication Sequence: [ 0 ] 

3）查看OSPF路由表

[R1]display ospf routing 
         OSPF Process 1 with Router ID 1.1.1.1
                  Routing Tables 
 Routing for Network 
Destination        Cost  Type       NextHop         AdvRouter       Area
1.1.1.1/32         0     Stub       1.1.1.1         1.1.1.1         0.0.0.0
12.0.0.0/8         1     Transit    12.1.1.1        1.1.1.1         0.0.0.0
192.168.1.0/24     1     Stub       192.168.1.254   1.1.1.1         0.0.0.0
192.168.2.0/24     1     Stub       192.168.2.254   1.1.1.1         0.0.0.0
2.2.2.2/32         1     Stub       12.1.1.2        2.2.2.2         0.0.0.0

4）查看R1的OSPF路由表

[R1]display ip routing-table protocol ospf 
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
2.2.2.2/32  OSPF    10   1           D   12.1.1.2        GigabitEthernet0/0/0

5）查看R1的Type-1LSA

[R1]display ospf lsdb router 1.1.1.1
         OSPF Process 1 with Router ID 1.1.1.1
                         Area: 0.0.0.0
                 Link State Database 
  Type      : Router
  Ls id     : 1.1.1.1
  Adv rtr   : 1.1.1.1  
  Ls age    : 641 
  Len       : 72 
  Options   :  E  
  seq#      : 80000008 
  chksum    : 0x9088
  Link count: 4
   * Link ID: 1.1.1.1      
     Data   : 255.255.255.255 
     Link Type: StubNet      
     Metric : 0 
     Priority : Medium
   * Link ID: 12.1.1.2     
     Data   : 12.1.1.1     
     Link Type: TransNet     
     Metric : 1
   * Link ID: 192.168.1.0  
     Data   : 255.255.255.0 
     Link Type: StubNet      
     Metric : 1 
     Priority : Low
   * Link ID: 192.168.2.0                 
     Data   : 255.255.255.0               
     Link Type: StubNet                   
     Metric : 1                           
     Priority : Low   

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