OSPF-hub and spoke配置（三）

实验拓扑图：

 

实验过程

1.       FRSW的配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host FRSW FRSW(config)#frame-relay switching FRSW(config)#int s0/0 FRSW(config-if)#no shut FRSW(config-if)#encapsulation frame-relay FRSW(config-if)#frame-relay intf-type dce FRSW(config-if)#frame-relay lmi-type cisco FRSW(config-if)#frame-relay route 102 interface s0/1 201 FRSW(config-if)#frame-relay route 103 interface s0/2 301 FRSW(config)#interface s0/1 FRSW(config-if)#no shut FRSW(config-if)#encapsulation frame-relay FRSW(config-if)#frame-relay intf-type dce FRSW(config-if)#frame-relay lmi-type cisco FRSW(config-if)#frame-relay route 201 interface s0/0 102 FRSW(config-if)#exit FRSW(config)#interface s0/2 FRSW(config-if)#no sh FRSW(config-if)#encapsulation frame-relay FRSW(config-if)#frame-relay intf-type dce FRSW(config-if)#frame-relay lmi-type cisco FRSW(config-if)#frame-relay route 301 interface s0/0 103 FRSW(config-if)#end

2.R1的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R1 R1(config)#interface lo0 R1(config-if)#ip add 1.1.1.1 255.255.255.0 R1(config)#exit R1(config)#interface s0/0 R1(config-if)#no shut R1(config-if)#encapsulation frame-relay R1(config-if)#no frame-relay inverse-arp R1(config-if)#exit R1(config)#interface s0/0.1 point-to-point R1(config-subif)#ip add 172.16.0.1 255.255.255.0 R1(config-subif)#frame-relay interface-dlci 102 R1(config-fr-dlci)#exit R1(config-subif)#exit R1(config)#interface s0/0.2 point-to-point R1(config-subif)#ip add 192.168.0.1 255.255.255.0 R1(config-subif)#frame-relay interface-dlci 103 R1(config-fr-dlci)#exit R1(config-subif)#end

3.R2的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R2 R1(config)#interface lo0 R1(config-if)#ip add 2.2.2.2  255.255.255.0 R1(config)#exit R2(config)#interface s0/1 R2(config-if)#no shut R2(config-if)#encapsulation frame-relay R2(config-if)#no frame-relay inverse-arp R2(config-if)#ip add 172.16.0.2 255.255.255.0 R2(config-if)#frame-relay map ip 172.16.0.1 201 broadcast R2(config-if)#end

4.R3的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R3 R3(config)#interface lo0 R3(config-if)#ip add 3.3.3.3 255.255.255.0 R3(config-if)#exit R3(config)#interface s0/2 R3(config-if)#no shut R3(config-if)#encapsulation frame-relay R3(config-if)#no frame-relay inverse-arp R3(config-if)#ip add 192.168.0.3 255.255.255.0 R3(config-if)#frame-relay map ip 192.168.0.1 301 broadcast R3(config-if)#end

5.查看帧中继map表

R1#show frame-relay map Serial0/0.2 (up): point-to-point dlci, dlci 103(0x67,0x1870), broadcast           status defined, active Serial0/0.1 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast           status defined, active R2#show frame-relay map Serial0/1 (up): ip 172.16.0.1 dlci 201(0xC9,0x3090), static,               broadcast,               CISCO, status defined, active

6.测试连通性

R1#ping 192.168.0.2   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.0.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/64/112 ms R1#ping 172.16.0.2   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.0.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 12/41/100 ms

7.配置R1的OSPF

R1#config t Enter configuration commands, one per line.  End with CNTL/Z. R1(config)#router ospf 1 R1(config-router)#net 192.168.0.1 0.0.0.0 area 0 R1(config-router)#net 172.16.0.1 0.0.0.0 area 0 R1(config-router)#net 1.1.1.1 0.0.0.0 area 0 R1(config-router)#exit R1(config)#int s0/0.1 //进入子接口 R1(config-subif)#ip ospf network point-to-point //指定接口网络类型为点到点 R1(config-subif)#exit R1(config)#int s0/0.2 R1(config-subif)#ip ospf network point-to-point R1(config-subif)#exit

8.配置R2的OSPF

R2#config t Enter configuration commands, one per line.  End with CNTL/Z. R2(config)#router ospf 1 R2(config-router)#net 172.16.0.2 0.0.0.0 area 0 R2(config-router)#net 2.2.2.2 0.0.0.0 area 0 R2(config-router)#exit R2(config)#int s0/1 R2(config-if)#ip ospf network point-to-point R2(config-if)#end

9.配置R3的OSPF

R3#config t Enter configuration commands, one per line.  End with CNTL/Z. R3(config)#router ospf 1 R3(config-router)#net 192.168.0.2 0.0.0.0 area 0 R3(config-router)#net 3.3.3.3 0.0.0.0 area 0 R3(config-router)#exit R3(config)#int s0/2 R3(config-if)#ip ospf network point-to-point R3(config-if)#end

10.查看OSPF的邻居表

R1#show ip ospf nei   Neighbor ID     Pri   State           Dead Time   Address         Interface 2.2.2.2           0   FULL/  -        00:00:37    172.16.0.2      Serial0/0.1 3.3.3.3           0   FULL/  -        00:00:36    192.168.0.2     Serial0/0.2 R2#show ip ospf nei   Neighbor ID     Pri   State           Dead Time   Address         Interface 1.1.1.1           0   FULL/  -        00:00:32    172.16.0.1      Serial0/1

说明：对于帧中继的点到点自接口网络类型，OSPF不需要选举DR和BDR，同时点到点支持广播，不需要手动指定邻居。

 

11.查看路由表

R1#show ip route ospf      2.0.0.0/32 is subnetted, 1 subnets O       2.2.2.2 [110/65] via 172.16.0.2, 00:10:23, Serial0/0.1      3.0.0.0/32 is subnetted, 1 subnets O       3.3.3.3 [110/65] via 192.168.0.2, 00:10:23, Serial0/0.2 R2#show ip route ospf      1.0.0.0/32 is subnetted, 1 subnets O       1.1.1.1 [110/65] via 172.16.0.1, 00:11:02, Serial0/1      3.0.0.0/32 is subnetted, 1 subnets O       3.3.3.3 [110/129] via 172.16.0.1, 00:11:02, Serial0/1 O    192.168.0.0/24 [110/128] via 172.16.0.1, 00:11:02, Serial0/1

12．测试连通性

R2#ping 1.1.1.1 source 2.2.2.2   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: Packet sent with a source address of 2.2.2.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 12/40/80 ms R2#ping 3.3.3.3 source 2.2.2.2   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: Packet sent with a source address of 2.2.2.2 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/96/172 ms