Hub&Spoke NBMA跑OSPF实验报告

robin6621

网络拓扑图： 1111 前提条件:Spoke端不能互访 1、手动指neighbor  （HUB端指向Spoke端） 2、手工指定DR (建议指定HUB端为DR、做法调高HUB端的priority.把Spoke端的优先级设置为0、表示不参与DR的选举) 3、手工写MAP R1: interface Serial0/0 ip address 145.1.1.1 255.255.255.0 encapsulation frame-relay ip ospf priority 2               //优先级调高，确保HUB端为DR。 serial restart-delay 0 end interface Loopback0 ip address 1.1.1.1 255.255.255.0 !          interface Loopback100 ip address 100.1.1.1 255.255.255.0 !          interface Loopback200 ip address 200.1.1.1 255.255.255.0 !          interface Loopback201 ip address 201.1.1.1 255.255.255.0 !          interface Loopback202 ip address 202.1.1.1 255.255.255.0 !         路由表：      1.0.0.0/24 is subnetted, 1 subnets C       1.1.1.0 is directly connected, Loopback0      100.0.0.0/24 is subnetted, 1 subnets C       100.1.1.0 is directly connected, Loopback100      4.0.0.0/32 is subnetted, 1 subnets O       4.4.4.4 [110/65] via 145.1.1.4, 00:23:25, Serial0/0 C    201.1.1.0/24 is directly connected, Loopback201      5.0.0.0/32 is subnetted, 1 subnets O       5.5.5.5 [110/65] via 145.1.1.5, 00:23:25, Serial0/0 C    200.1.1.0/24 is directly connected, Loopback200 C    202.1.1.0/24 is directly connected, Loopback202      145.1.0.0/24 is subnetted, 1 subnets C       145.1.1.0 is directly connected, Serial0/0 =========================================================================== R4: interface Serial0/1 ip address 145.1.1.4 255.255.255.0 encapsulation frame-relay ip ospf priority 0                   //优先级设为0，表示不参加DR的选举 frame-relay map ip 145.1.1.5 401 broadcast  //手工指去往R5的MAP serial restart-delay 0 end 路由表：      1.0.0.0/32 is subnetted, 1 subnets O       1.1.1.1 [110/65] via 145.1.1.1, 00:22:56, Serial0/1      100.0.0.0/32 is subnetted, 1 subnets O       100.1.1.1 [110/65] via 145.1.1.1, 00:22:56, Serial0/1      4.0.0.0/24 is subnetted, 1 subnets C       4.4.4.0 is directly connected, Loopback0      201.1.1.0/32 is subnetted, 1 subnets O       201.1.1.1 [110/65] via 145.1.1.1, 00:22:56, Serial0/1      5.0.0.0/32 is subnetted, 1 subnets O       5.5.5.5 [110/65] via 145.1.1.5, 00:22:56, Serial0/1      200.1.1.0/32 is subnetted, 1 subnets O       200.1.1.1 [110/65] via 145.1.1.1, 00:22:56, Serial0/1      202.1.1.0/32 is subnetted, 1 subnets O       202.1.1.1 [110/65] via 145.1.1.1, 00:22:57, Serial0/1      145.1.0.0/24 is subnetted, 1 subnets C       145.1.1.0 is directly connected, Serial0/1 =========================================================================== R5: interface Serial0/1 ip address 145.1.1.5 255.255.255.0 encapsulation frame-relay ip ospf priority 0 frame-relay map ip 145.1.1.5 401 broadcast    //手工指去往R4的MAP serial restart-delay 0 end