組網及說明
在實際組網中，經常會遇到OSPF組網的案例，比如單區域OSPF、多區域OSPF、OSPF虛鏈路、OSPF NSSA、OSPF STUB等需求，以下是單區域OSPF典型組網的配置案例。
網絡拓撲圖：
互聯地址、業務地址、looback0地址如上圖所示，全網均採用OSPF進程1、區域0，實現全網互聯互通。
配置步驟
- 配置loopback0地址
- 配置各互聯地址
- 創建OSPF進程1，並將各地址在區域0中發佈
- 查看OSPF鄰居的狀態
- 測試PC之間能互聯互通
配置關鍵點
R1：
<code>system-view /<code>
[H3C]sysname R1
[R1]int LoopBack 0
[R1-LoopBack0]ip add
[R1-LoopBack0]ip address 1.1.1.1 32
[R1-LoopBack0]quit
[R1]int gi 0/0
[R1-GigabitEthernet0/0]ip address 192.168.1.1 24
[R1-GigabitEthernet0/0]description <connect>
[R1-GigabitEthernet0/0]quit
[R1]int gi 0/1
[R1-GigabitEthernet0/1]ip address 10.0.0.1 30
[R1-GigabitEthernet0/1]description <connect>
[R1-GigabitEthernet0/1]quit
[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]area 0.0.0.0
[R1-ospf-1-area-0.0.0.0]network 10.0.0.1 0.0.0.0
[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 192.168.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]quit
[R1-ospf-1]quit/<connect>/<connect>
R2：
<code>system-view /<code>
[H3C]sysname R2
[R2]int LoopBack 0
[R2-LoopBack0]ip address 2.2.2.2 32
[R2-LoopBack0]quit
[R2]int gi 0/0
[R2-GigabitEthernet0/0]ip address 10.0.0.2 30
[R2-GigabitEthernet0/0]description <connect>
[R2-GigabitEthernet0/0]quit
[R2]int gi 0/1
[R2-GigabitEthernet0/1]description <connect>
[R2-GigabitEthernet0/1]ip address 10.0.0.5 30
[R2-GigabitEthernet0/1]quit
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0.0.0.0
[R2-ospf-1-area-0.0.0.0]network 10.0.0.2 0.0.0.0
[R2-ospf-1-area-0.0.0.0]network 10.0.0.5 0.0.0.0
[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]quit
[R2-ospf-1]quit/<connect>/<connect>
R3：
<code>system-view /<code>
[H3C]sysname R3
[R3]int LoopBack 0
[R3-LoopBack0]ip address 3.3.3.3 32
[R3-LoopBack0]quit
[R3]int gi 0/0
[R3-GigabitEthernet0/0]description <connect>
[R3-GigabitEthernet0/0]ip address 172.16.1.1 24
[R3-GigabitEthernet0/0]quit
[R3]int gi 0/1
[R3-GigabitEthernet0/1]description <connect>
[R3-GigabitEthernet0/1]ip address 10.0.0.6 30
[R3-GigabitEthernet0/1]quit
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 10.0.0.6 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255
[R3-ospf-1-area-0.0.0.0]quit
[R3-ospf-1]quit/<connect>/<connect>
測試：
查看各路由器的OSPF鄰居建立情況：
<code>dis ospf peer /<code>
OSPF Process 1 with Router ID 1.1.1.1
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
2.2.2.2 10.0.0.2 1 37 Full/BDR GE0/1dis ospf peer
OSPF Process 1 with Router ID 2.2.2.2
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
1.1.1.1 10.0.0.1 1 39 Full/DR GE0/0
3.3.3.3 10.0.0.6 1 34 Full/BDR GE0/1
[R3]dis ospf peer
OSPF Process 1 with Router ID 3.3.3.3
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
2.2.2.2 10.0.0.5 1 37 Full/DR GE0/1
[R3]
PC之間能PING通：
至此單區域OSPF配置已完成！
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