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，以下是多區域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、其中R1與R2路由器屬於OSPF的區域0，R2與R3路由器屬於OSPF區域1，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
[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
to
PC>
[R1-GigabitEthernet0/0]quit
[R1]int
gi
0
/1
[R1-GigabitEthernet0/1]ip
address
10.0
.0
.1
30
[R1-GigabitEthernet0/1]description
to
R2>
[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
/<code>
R2：
<code>system-view
[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
to
R1>
[R2-GigabitEthernet0/0]quit
[R2]int
gi
0
/1
[R2-GigabitEthernet0/1]description
to
R3>
[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
2.2
.2
.2
0.0
.0
.0
[R2-ospf-1-area-0.0.0.0]quit
[R2-ospf-1]area
0.0
.0
.1
[R2-ospf-1-area-0.0.0.1]network
10.0
.0
.5
0.0
.0
.0
[R2-ospf-1-area-0.0.0.1]quit
[R2-ospf-1]quit
/<code>
R3：
<code>system-view
[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
to
PC>
[R3-GigabitEthernet0/0]ip
address
172.16
.1
.1
24
[R3-GigabitEthernet0/0]quit
[R3]int
gi
0
/1
[R3-GigabitEthernet0/1]description
to
R2>
[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
.1
[R3-ospf-1-area-0.0.0.1]network
10.0
.0
.6
0.0
.0
.0
[R3-ospf-1-area-0.0.0.1]network
3.3
.3
.3
0.0
.0
.0
[R3-ospf-1-area-0.0.0.1]network
172.16
.1
.0
0.0
.0
.255
[R3-ospf-1-area-0.0.0.1]quit
[R3-ospf-1]quit
/<code>
測試各路由器的OSPF鄰居建立情況：
<code>[R1]dis
ospf
peer
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
31
Full/BDR
GE0/1
[R1]
[R2]dis
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
35
Full/DR
GE0/0
Area:
0.0
.0
.1
Router
ID
Address
Pri
Dead-Time
State
Interface
3.3
.3
.3
10.0
.0
.6
1
33
Full/BDR
GE0/1
[R2]
[R3]dis
ospf
peer
OSPF
Process
1
with
Router
ID
3.3
.3
.3
Neighbor
Brief
Information
Area:
0.0
.0
.1
Router
ID
Address
Pri
Dead-Time
State
Interface
2.2
.2
.2
10.0
.0
.5
1
32
Full/DR
GE0/1
[R3]
/<code>
PC之間能PING通：
至此多區域OSPF配置已完成！
關鍵字: R3 區域 GigabitEthernet0
