实验1 单区域OSPF基本配置

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单区域OSPF基本配置

一、实验目的

1.掌握单区域OSPF的配置

2.理解链路状态路由协议的工作过程 3.掌握实验环境中虚拟接口的配置

二、应用环境

在大规模网络中，OSPF作为链路状态路由协议的代表应用非常广泛，具有无自环，收敛快的特点

三、实验设备

DCR-1702 CR-V35MT CR-V35FC

两台一条一条

四、实验拓扑

五、实验要求

ROUTER-A

S1/1 192.168.1.1/24 Loopback0 10.10.10.1/24

ROUTER-B S1/0 192.168.1.2/24 Loopback0 10.10.11.1/24

六、实验步骤

第一步：路由器环回接口的配置（其他接口配置请参见实验三）路由器A：

Router-A_config#interface loopback0

Router-A_config_l0#ip address 10.10.10.1 255.255.255.0

路由器B：

Router-B#config

Router-B_config#interface loopback0

Router-B_config_l0#ip address 10.10.11.1 255.255.255.0

第二步：验证接口配置

Router-B#sh interface loopback0

Loopback0 is up, line protocol is up Hardware is Loopback

Interface address is 10.10.11.1/24

MTU 1514 bytes, BW 8000000 kbit, DLY 500 usec

Encapsulation LOOPBACK

第三步：路由器的OSPF配置 A的配置：

Router-A_config#router ospf 2 ！启动OSPF进程，进程号为2 Router-A_config_ospf_1#network 10.10.10.0 255.255.255.0 area 0 ！注意要写掩码和区域号

Router-A_config_ospf_1#network 192.168.1.0 255.255.255.0 area 0

B的配置：

Router-B_config#router ospf 1

Router-B_config_ospf_1#network 10.10.11.0 255.255.255.0 area 0 Router-B_config_ospf_1#network 192.168.1.0 255.255.255.0 area 0

第四步：查看路由表路由器A：

Router-A#sh ip route

Codes: C - connected, S - static, R - RIP, B - BGP, BC - BGP connected D - DEIGRP, DEX - external DEIGRP, O - OSPF, OIA - OSPF inter area ON1 - OSPF NSSA external type 1, ON2 - OSPF NSSA external type 2 OE1 - OSPF external type 1, OE2 - OSPF external type 2 DHCP - DHCP type

VRF ID: 0

C 10.10.10.0/24 is directly connected, Loopback0

O 10.10.11.1/32 [110,1600] via 192.168.1.2(on Serial1/1)

！注意到环回接口产生的是主机路由 C 192.168.1.0/24 is directly connected, Serial1/1

路由器B：

Router-B#show ip route

VRF ID: 0

O 10.10.10.1/32 [110,1601] via 192.168.1.1(on Serial1/0) ！注意管理距离为110

C 10.10.11.0/24 is directly connected, Loopback0 C 192.168.1.0/24 is directly connected, Serial1/0

第五步：其他验证命令

Router-B#sh ip ospf 1 ！显示该OSPF进程的信息 OSPF process: 1, Router ID: 192.168.2.1

Distance: intra-area 110, inter-area 110, external 150 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs

SPFTV:11(1), TOs:24, SCHDs:27 All Rtrs support Demand-Circuit. Number of areas is 1 AREA: 0

Number of interface in this area is 2(UP: 3) Area authentication type: None

All Rtrs in this area support Demand-Circuit.

Router-A#show ip ospf interace ！显示OSPF接口状态和类型 Serial1/1 is up, line protocol is up

Internet Address: 192.168.1.1/24 Nettype: Point-to-Point

OSPF process is 2, AREA: 0, Router ID: 192.168.1.1 Cost: 1600, Transmit Delay is 1 sec, Priority 1

Hello interval is 10, Dead timer is 40, Retransmit is 5 OSPF INTF State is IPOINT_TO_POINT

Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 192.168.1.2

Loopback0 is up, line protocol is up

Internet Address: 10.10.10.1/24

Nettype: Broadcast ！环回接口的网络类型默认为广播 OSPF process is 2, AREA: 0, Router ID: 192.168.1.1 Cost: 1, Transmit Delay is 1 sec, Priority 1

Hello interval is 10, Dead timer is 40, Retransmit is 5 OSPF INTF State is ILOOPBACK

Neighbor Count is 0, Adjacent neighbor count is 0

Router-A#sh ip ospf neighbor ！显示OSPF邻居

----------------------------------------------------------------------------

OSPF process: 2

AREA: 0

Neighbor ID Pri State DeadTime Neighbor Addr Interface 192.168.2.1 1 FULL/- 31 192.168.1.2 Serial1/1

第六步：修改环回接口的网络类型 Router-A#conf

Router-A_config#interface loopback 0

Router-A_config_l0#ip ospf network point-to-point ！将类型改为点到点

第七步：查看接口状态和路由器B的路由表 Router-A#sh ip ospf interface

Serial1/1 is up, line protocol is up

Internet Address: 192.168.1.1/24 Nettype: Point-to-Point

OSPF process is 2, AREA: 0, Router ID: 192.168.1.1 Cost: 1600, Transmit Delay is 1 sec, Priority 1

Hello interval is 10, Dead timer is 40, Retransmit is 5

OSPF INTF State is IPOINT_TO_POINT

Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 192.168.1.2

Loopback0 is up, line protocol is up

Internet Address: 10.10.10.1/24 Nettype: Point-to-Point

OSPF process is 2, AREA: 0, Router ID: 192.168.1.1 Cost: 1, Transmit Delay is 1 sec, Priority 1

Hello interval is 10, Dead timer is 40, Retransmit is 5 OSPF INTF State is IPOINT_TO_POINT

Neighbor Count is 0, Adjacent neighbor count is 0

Router-B#sh ip route

VRF ID: 0

O 10.10.10.0/24 [110,1600] via 192.168.1.1(on Serial1/0) C 10.10.11.0/24 is directly connected, Loopback0 C 192.168.1.0/24 is directly connected, Serial1/0

七、注意事项和排错

每个路由器的OSPF进程号可以不同，一个路由器可以有多个OSPF进程 OSPF是无类路由协议，一定要加掩码第一个区域必须是区域0

八、配置序列

Router-A#show running-conf Building configuration...

Current configuration: !

!version 1.3.2E

service timestamps log date service timestamps debug date no service password-encryption !

hostname Router-A ! !

interface Loopback0

ip address 10.10.10.1 255.255.255.0 no ip directed-broadcast

ip ospf network point-to-point !

interface FastEthernet0/0