1、ENSP 添加三个AR220路由，分别命名为R1/R2/R3R1地址分配：G0/0/0 ip:1.0.0.1 掩码:255.0.0.0G0/0/1 ip:2.0.0.1 掩码:255.0.0.0R2地址分配：G0/0/0 ip:1.0.0.2 掩码:255.0.0.0G0/0/1 ip:2.0.0.2 掩码:255.0.0.0R3地址分配：G0/0/0 ip:3.0.0.1 掩码:255.0.0.0G0/0/1 ip:4.0.0.1 掩码:255.0.0.0PC1:3.0.0.2 255.0.0.0PC2:4.0.0.2 255.0.0.0
2、R1配置命令：SYSSYS R1int G0/0/0ip add 1.0.0.1 255.0.0.0ospf enable 1 area 0int G0/0/1ip add 2.0.0.1 255.0.0.0ospf enable 1 area 0qint LoopBack0ip add 1.1.1.1 255.255.255.255ospf en 1 area 0ospf 1 rou 1.1.1.1area 0net 1.0.0.0 0.0.0.255net 2.0.0.0 0.0.0.255qR2配置命令：SYSSYS R2int G0/0/0ip add 1.0.0.2 255.0.0.0ospf enable 1 area 0int G0/0/1ip add 3.0.0.1 255.0.0.0ospf enable 1 area 0qint LoopBack0ip add 2.2.2.2 255.255.255.255ospf en 1 area 0ospf 1 rou 2.2.2.2area 0net 1.0.0.0 0.0.0.255net 3.0.0.0 0.0.0.255qR3路由配置命令：SYSSYS R3int G0/0/0ip add 2.0.0.2 255.0.0.0ospf enable 1 area 0int G0/0/1ip add 4.0.0.1 255.0.0.0ospf enable 1 area 0qint LoopBack0ip add 3.3.3.3 255.255.255.255ospf en 1 area 0ospf 1 rou 3.3.3.3area 0net 2.0.0.0 0.0.0.255net 4.0.0.0 0.0.0.255q
3、查看OSPF DR/BDR已经出现了
4、查看OSPF 路由表命令：dis ospf ro
5、PC测试PING成功
