7.ospf广播型.doc

OSPF：Open Shortest Path First 开放最短路径优先协议拓扑图如下：（广播多路访问型）接口连接：Router1 E0/0 Router4 F0/1 Router2 E0/0 Router4 F0/2 Router3 E0/0 Router4 F0/3路由器参考配置如下：路由器R1的配置：Router /用户模式Routerenable /从用户模式进入到特权模式Router#configure terminal /从特权模式进入到全局模式Router(config)#hostname R1 /给路由器从命名为R1R1(config)#no ip domain lookup /关闭域名查找R1(config)#line console 0 /进入控制口R1(config-line)#logging synchronous /光标跟随R1(config-line)#exec-timeout 0 0 /关闭延迟R1(config-line)#exitR1(config)#interface loopback 0 /配置回环接口的ip地址R1(config-if)#ip address R1(config-if)#interface e0/0 /配置以太口的ip地址R1(config-if)#ip address R1(config-if)#no shutdown /激活物理接口R1(config-if)#endR1#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /24 is subnetted, 1 subnetsC is directly connected, Loopback0C /24 is directly connected, Ethernet0/0R1#configure terminalR1(config)#router ospf 1R1(config-router)#network area 2R1(config-router)#network area 2R1(config-router)#endR1#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /24 is subnetted, 1 subnetsC is directly connected, Loopback0 /32 is subnetted, 1 subnetsO 110/11 via , 00:00:13, Ethernet0/0 /32 is subnetted, 1 subnetsO 110/11 via , 00:00:13, Ethernet0/0C /24 is directly connected, Ethernet0/0R1#show ip protocols Routing Protocol is ospf 1 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Router ID Number of areas in this router is 1. 1 normal 0 stub 0 nssa Maximum path: 4 Routing for Networks: area 2 area 2 Reference bandwidth unit is 100 mbps Routing Information Sources: Gateway Distance Last Update 110 00:00:41 110 00:00:41 Distance: (default is 110)R1#show ip ospf interface e0/0Ethernet0/0 is up, line protocol is up Internet Address /24, Area 2 /广播式 Process ID 1, Router ID , Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) , Interface address Backup Designated router (ID) , Interface address Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:09 Supports Link-local Signaling (LLS) Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor (Backup Designated Router) Adjacent with neighbor Suppress hello for 0 neighbor(s)R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 1 FULL/BDR 00:00:35 Ethernet0/0 1 FULL/DR 00:00:33 Ethernet0/0R1#clear ip ospf process Reset ALL OSPF processes? no: yR1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 20 FULL/DR 00:00:30 Ethernet0/0 1 FULL/BDR 00:00:29 Ethernet0/0R1#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /24 is subnetted, 1 subnetsC is directly connected, Loopback0 /32 is subnetted, 1 subnetsO 110/11 via , 00:00:57, Ethernet0/0 /32 is subnetted, 1 subnetsO 110/11 via , 00:00:57, Ethernet0/0C /24 is directly connected, Ethernet0/0R1#show ip ospf interface e0/0Ethernet0/0 is up, line protocol is up Internet Address /24, Area 2 Process ID 1, Router ID , Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DROTHER, Priority 1 Designated Router (ID) , Interface address Backup Designated router (ID) , Interface address Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:01 Supports Link-local Signaling (LLS) Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 0, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor (Designated Router) Adjacent with neighbor (Backup Designated Router) Suppress hello for 0 neighbor(s)R1#路由器R2的配置：Router /用户模式Routerenable /从用户模式进入到特权模式Router#configure terminal /从特权模式进入到全局模式Router(config)#hostname R2 /给路由器从命名为R2R2(config)#no ip domain lookup /关闭域名查找R2(config)#line console 0 /进入控制口R2(config-line)#logging synchronous /光标跟随R2(config-line)#exec-timeout 0 0 /关闭延迟R2(config-line)#exitR2(config)#interface loopback 0 /配置回环接口的ip地址R2(config-if)#ip address R2(config-if)#interface e0/0 /配置以太口的ip地址R2(config-if)#ip address R2(config-if)#no shutdown R2(config-if)#endR2#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /24 is subnetted, 1 subnetsC is directly connected, Loopback0C /24 is directly connected, Ethernet0/0R2#configure termianlR2(config)#router ospf 2R2(config-router)#network area 2R2(config-router)#network area 2R2(config-router)#endR2#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /32 is subnetted, 1 subnetsO 110/11 via , 00:00:08, Ethernet0/0 /24 is subnetted, 1 subnetsC is directly connected, Loopback0 /32 is subnetted, 1 subnetsO 110/11 via , 00:00:08, Ethernet0/0C /24 is directly connected, Ethernet0/0R2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 1 FULL/DROTHER 00:00:33 Ethernet0/0 1 FULL/DR 00:00:30 Ethernet0/0R2#configure terminalR2(config)#interface e0/0R2(config-if)#ip ospf priority 20 /修改接口的优先级为20R2(config-if)#endR2#clear ip ospf process /清空ospf协议的进程Reset ALL OSPF processes? no: yR2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 1 FULL/DROTHER 00:00:30 Ethernet0/0 1 FULL/BDR 00:00:32 Ethernet0/0R2#show running-configBuilding configuration.Current configuration : 823 bytes!version 12.4service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption!hostname R2!boot-start-markerboot-end-marker!no aaa new-modelmemory-size iomem 5!ip cef!no ip domain lookup! !interface Loopback0 ip address !interface Ethernet0/0 ip address ip ospf priority 20 full-duplex!interface Ethernet0/1 no ip address shutdown half-duplex!interface Ethernet0/2 no ip address shutdown half-duplex!interface Ethernet0/3 no ip address shutdown half-duplex!router ospf 2 log-adjacency-changes network area 2 network area 2!ip http server!control-plane!line con 0 exec-timeout 0 0 logging synchronousline aux 0line vty 0 4! endR2#路由器R3的配置：RouterRouterenableRouter#configure terminalRouter(config)#hostname R3R3(config)#no ip domain lookupR3(config)#line console 0R3(config-line)#logging synchronousR3(config-line)#exec-timeout 0 0R3(config-line)#exitR3(config)#interface loopback 0R3(config-if)#ip address R3(config)#interface e0/0R3(config-if)#ip address R3(config-if)#no shutdown R3(config-if)#endR3#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set /24 is subnetted, 1 subnetsC is directly connected, Loopback0C /24 is directly connected, Ethernet0/0R3#configure terminalR3(config)#router ospf 3R3(config-router)#network area 2R3(config-router)#network area 2R3(config-router)#endR3#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile