【锐捷】OSPF 多区域配置

【实验名称】

配置 OSPF 多区域。

【实验目的】

配置 OSPF 多区域，理解 OSPF 层次型网络的特点。

【背景描述】

本实验拓扑图中有 3 台路由器，路由器在区域 0 和区域 1 中，路由器 B 在区域 0 和区域 30，

路由器 C 在区域 30。

【需求分析】

需要基于本拓扑图实现 OSPF 多区域的配置，并理解 OSPF 实现层次型网络的优点。

【实验拓扑】

实验的拓扑图，如图 11-1 所示。

图 11-1

【实验设备】

路由器 3 台

【预备知识】

路由器基本配置知识、OSPF。

【实验原理】

配置 OSPF 路由协议，实现多区域路由。

【实验步骤】

步骤 1 在路由器上配置 IP 地址。

RA#config t

RA(config)# interface FastEthernet 0/0

RA(config-if)#ip address 192.168.1.2 255.255.255.0

RA(config)#interface Loopback 0

RA(config-if)#ip address 172.16.0.1 255.255.255.0

RA(config)#interface Loopback 1

RA(config-if)#ip address 172.16.1.1 255.255.255.0

RA(config)#interface Loopback 2

RA(config-if)#ip address 172.16.2.1 255.255.255.0

RA(config)#interface Loopback 3

RA(config-if)#ip address 172.16.3.1 255.255.255.0

RA(config)#interface Loopback 4

RA(config-if)#ip address 172.16.4.1 255.255.255.0

RB#config t

RB(config)# interface FastEthernet 0/0

RB(config-if)#ip address 192.168.1.1 255.255.255.0

RB(config)#interface FastEthernet 0/1

RB(config-if)#ip address 192.168.2.1 255.255.255.0

RB(config)#interface Loopback 0

RB(config-if)#ip address 172.24.1.1 255.255.255.0

RB(config)#interface Loopback 1

RB(config-if)#p address 192.168.3.1 255.255.255.0

RC#config t

RC(config)# interface FastEthernet 0/0

RC(config-if)#ip address 192.168.2.2 255.255.255.0

RC(config)#interface Loopback 0

RC(config-if)#ip address 172.24.2.1 255.255.255.0

RC(config)#interface Loopback 1

RC(config-if)#ip address 199.0.0.10 255.255.255.240

步骤 2 配置 OSPF。

RA(config)# router ospf 10

RA(config-router)#network 172.16.0.0 0.0.0.255 area 1

RA(config-router)#network 172.16.1.0 0.0.0.255 area 1

RA(config-router)#network 172.16.2.0 0.0.0.255 area 1

RA(config-router)#network 172.16.3.0 0.0.0.255 area 1

RA(config-router)#network 172.16.4.0 0.0.0.255 area 1

RA(config-router)#network 192.168.1.0 0.0.0.255 area 0

RB(config)# router ospf 10

RB(config-router)#network 172.24.1.0 0.0.0.255 area 0

RB(config-router)#network 192.168.1.0 0.0.0.255 area 0

实验 11 OSPF 多区域配置 ·7·

RB(config-router)#network 192.168.2.0 0.0.0.255 area 30

RB(config-router)#network 192.168.3.0 0.0.0.255 area 0

RC(config)# router ospf 10

RC(config-router)#network 172.24.2.0 0.0.0.255 area 30

RC(config-router)#network 192.168.2.0 0.0.0.255 area 30

步骤 3 验证测试。

用命令 show ip route 和 sh ip ospf neighbor 来验证配置。

RA#show ip route

Codes: C - connected, S - static, R - RIP B - BGP

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, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default

Gateway of last resort is no set

C 172.16.0.0/24 is directly connected, Loopback 0

C 172.16.0.1/32 is local host.

C 172.16.1.0/24 is directly connected, Loopback 1

C 172.16.1.1/32 is local host.

C 172.16.2.0/24 is directly connected, Loopback 2

C 172.16.2.1/32 is local host.

C 172.16.3.0/24 is directly connected, Loopback 3

C 172.16.3.1/32 is local host.

C 172.16.4.0/24 is directly connected, Loopback 4

C 172.16.4.1/32 is local host.

O 172.24.1.1/32 [110/1] via 192.168.1.1, 00:03:13, FastEthernet 0/0

O IA 172.24.2.1/32 [110/2] via 192.168.1.1, 00:00:35, FastEthernet 0/0

C 192.168.1.0/24 is directly connected, FastEthernet 0/0

C 192.168.1.2/32 is local host.

O IA 192.168.2.0/24 [110/2] via 192.168.1.1, 00:03:13, FastEthernet 0/0

O 192.168.3.1/32 [110/1] via 192.168.1.1, 00:03:13, FastEthernet 0/0

RC#show ip route

Codes: C - connected, S - static, R - RIP B - BGP

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, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default

Gateway of last resort is 0.0.0.0 to network 0.0.0.0

S* 0.0.0.0/0 is directly connected, Loopback 1

O IA 172.16.0.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

O IA 172.16.1.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

实验 11 OSPF 多区域配置 ·8·

O IA 172.16.2.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

O IA 172.16.3.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

O IA 172.16.4.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

O IA 172.24.1.0/24 [110/1] via 192.168.2.1, 00:02:49, FastEthernet 0/0

C 172.24.2.0/24 is directly connected, Loopback 0

C 172.24.2.1/32 is local host.

O IA 192.168.1.0/24 [110/2] via 192.168.2.1, 00:02:49, FastEthernet 0/0

C 192.168.2.0/24 is directly connected, FastEthernet 0/0

C 192.168.2.2/32 is local host.

O IA 192.168.3.0/24 [110/1] via 192.168.2.1, 00:02:49, FastEthernet 0/0

C 199.0.0.0/28 is directly connected, Loopback 1

C 199.0.0.10/32 is local host.

RB#show ip ospf neighbor

OSPF process 10:

Neighbor ID Pri State Dead Time Address Interface

172.16.4.1 1 Full/DR 00:00:37 192.168.1.2 FastEthernet 0/0

199.0.0.10 1 Full/BDR 00:00:35 192.168.2.2 FastEthernet 0/1

【参考配置】

RA#show running-config

Building configuration...

Current configuration : 1029 bytes

!

version RGNOS 10.1.00(4), Release(18443)(Tue Jul 17 20:50:30 CST 2007

-ubu1server)

hostname RA

!

enable secret 5 1db44$8x67vy78Dz5pq1xD

!

interface FastEthernet 0/0

ip address 192.168.1.2 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet 0/1

duplex auto

speed auto

!

interface Loopback 0

ip address 172.16.0.1 255.255.255.0

!

interface Loopback 1

ip address 172.16.1.1 255.255.255.0

实验 11 OSPF 多区域配置 ·9·

!

interface Loopback 2

ip address 172.16.2.1 255.255.255.0

!

interface Loopback 3

ip address 172.16.3.1 255.255.255.0

!

interface Loopback 4

ip address 172.16.4.1 255.255.255.0

!

router ospf 10

network 172.16.0.0 0.0.0.255 area 1

network 172.16.1.0 0.0.0.255 area 1

network 172.16.2.0 0.0.0.255 area 1

network 172.16.3.0 0.0.0.255 area 1

network 172.16.4.0 0.0.0.255 area 1

network 192.168.1.0 0.0.0.255 area 0

!

line con 0

line aux 0

line vty 0 4

login

!

end

RB#show running-config

Building configuration...

Current configuration : 807 bytes

!

version RGNOS 10.1.00(4), Release(18443)(Tue Jul 17 20:50:30 CST 2007

-ubu1server)

hostname RB

!

enable secret 5 1db44$8x67vy78Dz5pq1xD

!

interface FastEthernet 0/0

ip address 192.168.1.1 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet 0/1

ip address 192.168.2.1 255.255.255.0

实验 11 OSPF 多区域配置 ·10·

duplex auto

speed auto

!

interface Loopback 0

ip address 172.24.1.1 255.255.255.0

!

interface Loopback 1

ip address 192.168.3.1 255.255.255.0

router ospf 10

network 172.24.1.0 0.0.0.255 area 0

network 192.168.1.0 0.0.0.255 area 0

network 192.168.2.0 0.0.0.255 area 30

network 192.168.3.0 0.0.0.255 area 0

!

line con 0

line aux 0

line vty 0 4

login

!

end

RC#show running-config

Building configuration...

Current configuration : 734 bytes

!

version RGNOS 10.1.00(4), Release(18443)(Tue Jul 17 20:50:30 CST 2007

-ubu1server)

hostname RC

!

enable secret 5 1db44$8x67vy78Dz5pq1xD

!

interface FastEthernet 0/0

ip address 192.168.2.2 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet 0/1

duplex auto

speed auto

!

interface Loopback 0

ip address 172.24.2.1 255.255.255.0

!

实验 11 OSPF 多区域配置 ·11·

interface Loopback 1

ip address 199.0.0.10 255.255.255.240

!

router ospf 10

network 172.24.2.0 0.0.0.255 area 30

network 192.168.2.0 0.0.0.255 area 30

!

ip route 0.0.0.0 0.0.0.0 Loopback 1

!

line con 0

line aux 0

line vty 0 4

login

!

end

实验 11 OSPF 多区域配置 ·12·