搭建实验环境
1)分别配置Area 2为末梢区域和完全末梢区域。
2)使用命令验证配置。
实现此案例需要按照如下步骤进行。
//R1的配置
ospf 1 router-id 1.1.1.1
area 0
network 192.168.12.0 0.0.0.255
//R2的配置
ospf 1 router-id 2.2.2.2
area 0
network 192.168.12.0 0.0.0.255
area 2
network 192.168.23.0 0.0.0.255
//R3的配置
ospf 1 router-id 3.3.3.3
area 2
network 192.168.23.0 0.0.0.255
<R1>dis ospf routing
OSPF Process 1 with Router ID 1.1.1.1
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.12.0/24 1 Transit 192.168.12.1 1.1.1.1 0.0.0.0
192.168.23.0/24 2 Inter-area 192.168.12.2 2.2.2.2 0.0.0.0
Total Nets: 2
Intra Area: 1 Inter Area: 1 ASE: 0 NSSA: 0
<R2>dis ospf routing
OSPF Process 1 with Router ID 2.2.2.2
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.12.0/24 1 Transit 192.168.12.2 2.2.2.2 0.0.0.0
192.168.23.0/24 1 Transit 192.168.23.2 2.2.2.2 0.0.0.2
Total Nets: 2
Intra Area: 2 Inter Area: 0 ASE: 0 NSSA: 0
<R3>dis ospf routing
OSPF Process 1 with Router ID 3.3.3.3
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.23.0/24 1 Transit 192.168.23.3 3.3.3.3 0.0.0.2
192.168.12.0/24 2 Inter-area 192.168.23.2 2.2.2.2 0.0.0.2
Total Nets: 2
Intra Area: 1 Inter Area: 1 ASE: 0 NSSA: 0
//R2的配置
ospf 1
area 2
stub
//R3的配置
ospf 1
area 2
stub
<R3>dis ospf routing
OSPF Process 1 with Router ID 3.3.3.3
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.23.0/24 1 Transit 192.168.23.3 3.3.3.3 0.0.0.2
0.0.0.0/0 2 Inter-area 192.168.23.2 2.2.2.2 0.0.0.2
192.168.12.0/24 2 Inter-area 192.168.23.2 2.2.2.2 0.0.0.2
Total Nets: 3
Intra Area: 1 Inter Area: 2 ASE: 0 NSSA: 0
//R2的配置
ospf 1
area 2
stub no-summary
<R3>dis ospf routing
OSPF Process 1 with Router ID 3.3.3.3
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.23.0/24 1 Transit 192.168.23.3 3.3.3.3 0.0.0.2
0.0.0.0/0 2 Inter-area 192.168.23.2 2.2.2.2 0.0.0.2
Total Nets: 2
Intra Area: 1 Inter Area: 1 ASE: 0 NSSA: 0