OSPF Stub区域配置实例

1.拓扑图

141818241.png

配置步骤

1.按拓扑图配置接口ip地址

2.启用OSPF协议

声明网络及所在区域

配置区域类型

3查看OSPF数据库

4查看路由表

给出配置(命令的解析请等待博主补充)

R1#

R1#config terminal

R1(config)#interface ran f0/0 , f0/1

R1(config-if)#no shut

R1(config-if)#interface f0/0

R1(config-if)#ip address 192.168.0.1 255.255.255.0

R1(config)#interface f0/1

R1(config-if)#no shut

R1(config-if)#ip add 172.20.0.1 255.255.0.0

R1(config-if)#exit


R1(config)#router ospf 1

R1(config-router)#?

R1(config-router)#network 192.168.0.0 0.0.0.255 area 0

R1(config-router)#network 172.20.0.0 0.0.255.255 area 2

R1(config-router)#exit

R1(config)#end


R1#copy runn start



R1#show ip ospf database


OSPF Router with ID (192.168.0.1) (Process ID 1)


Router Link States (Area 0)


Link ID ADV Router Age Seq# Checksum Link count

192.168.0.1 192.168.0.1 1584 0x80000006 0xF38E 1

192.168.0.2 192.168.0.2 1455 0x80000005 0xF38C 1


Net Link States (Area 0)


Link ID ADV Router Age Seq# Checksum

192.168.0.2 192.168.0.2 1455 0x80000002 0x9CEF


Summary Net Link States (Area 0)


Link ID ADV Router Age Seq# Checksum

172.16.0.0 192.168.0.2 715 0x80000004 0xEF21

172.17.0.0 192.168.0.2 715 0x80000002 0xF11F

172.20.0.0 192.168.0.1 1575 0x80000001 0xCB45


Router Link States (Area 2)


Link ID ADV Router Age Seq# Checksum Link count

192.168.0.1 192.168.0.1 1584 0x80000001 0x8912 1


Summary Net Link States (Area 2)


Link ID ADV Router Age Seq# Checksum

172.16.0.0 192.168.0.1 1595 0x80000001 0x60E

172.17.0.0 192.168.0.1 1595 0x80000001 0x40E

192.168.0.0 192.168.0.1 1595 0x80000001 0xCF98

R1#


R2#config

R2(config)#interface ran f0/0 ,f0/1

R2(config-if)#no shut

R2(config-if)#interface f0/0

R2(config-if)#ip address 192.168.0.2 255.255.255.0

R2(config-if)#interface f0/1

R2(config-if)#ip address 172.16.0.1 255.255.0.0


R2(config-if)#ip ospf ?

R2(config-if)#ip ospf network ?

broadcast Specify OSPF broadcast multi-access network

non-broadcast Specify OSPF NBMA network

point-to-multipoint Specify OSPF point-to-multipoint network

point-to-point Specify OSPF point-to-point network

R2(config-if)#exit


R2(config)#router ospf 3

R2(config-router)#network 192.168.0.0 0.0.0.255 area 0

R2(config-router)#network 172.16.0.0 0.0.255.255 area 1


R2(config)#router ospf 3

R2(config-router)#?

Router configuration commands:

area OSPF area parameters

R2(config-router)#area ?

<0-4294967295> OSPF area ID as a decimal value

A.B.C.D OSPF area ID in IP address format


R2(config-router)#area 1 ?

authentication Enable authentication

default-cost Set the summary default-cost of a NSSA/stub area

nssa Specify a NSSA area

range Summarize routes matching address/mask (border routers only)

stub Specify a stub area

virtual-link Define a virtual link and its parameters


R2(config-router)#area 1 stub ?

no-summary Do not send summary LSA into stub area

<cr>


R2(config-router)#area 1 stub no-summary

R2(config-router)# end

R2#copy runn start


R2#show ip ospf database


OSPF Router with ID (192.168.0.2) (Process ID 3)


Router Link States (Area 0)


Link ID ADV Router Age Seq# Checksum Link count

192.168.0.1 192.168.0.1 363 0x80000007 0xF18F 1

192.168.0.2 192.168.0.2 63 0x80000006 0xF18D 1


Net Link States (Area 0)


Link ID ADV Router Age Seq# Checksum

192.168.0.2 192.168.0.2 63 0x80000003 0x9AF0


Summary Net Link States (Area 0)


Link ID ADV Router Age Seq# Checksum

172.16.0.0 192.168.0.2 1323 0x80000004 0xEF21

172.17.0.0 192.168.0.2 1323 0x80000002 0xF11F

172.20.0.0 192.168.0.1 363 0x80000002 0xC946


Router Link States (Area 1)


Link ID ADV Router Age Seq# Checksum Link count

172.17.0.1 172.17.0.1 1309 0x80000004 0xEB7D 2

192.168.0.2 192.168.0.2 1333 0x80000004 0xA638 1


Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

172.16.0.1 192.168.0.2 1333 0x80000002 0xF8EE


Summary Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

0.0.0.0 192.168.0.2 1820 0x80000002 0x973A



R3#config

R3(config)#inter ran f0/0 , f0/1

R3(config-if)#no shut


R3(config-if)#interface f0/0

R3(config-if)#ip address 172.16.0.2 255.255.0.0

R3(config-if)#interface f0/1

R3(config-if)#ip address 172.17.0.1 255.255.0.0

R3(config-if)#exit


R3(config)#router ospf 1

R3(config-router)#network 172.16.0.0 0.0.255.255 area 1

R3(config-router)#network 172.17.0.0 0.0.255.255 area 1


R3(config-router)#area 1 stub no-summary

R3(config-router) #end

R3#copy runn start



R3#show ip ospf database


OSPF Router with ID (172.17.0.1) (Process ID 1)


Router Link States (Area 1)


Link ID ADV Router Age Seq# Checksum Link count

172.17.0.1 172.17.0.1 32 0x80000003 0xED7C 2

192.168.0.2 192.168.0.2 33 0x80000003 0xA837 1


Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

172.16.0.1 192.168.0.2 33 0x80000001 0xFAED


Summary Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

0.0.0.0 192.168.0.2 457 0x80000001 0x9939


R3#show ip interface brief

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 172.16.0.2 YES manual up up

FastEthernet0/1 172.17.0.1 YES manual up up

R3#show ip ospf database


OSPF Router with ID (172.17.0.1) (Process ID 1)


Router Link States (Area 1)


Link ID ADV Router Age Seq# Checksum Link count

172.17.0.1 172.17.0.1 855 0x80000004 0xEB7D 2

192.168.0.2 192.168.0.2 871 0x80000004 0xA638 1


Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

172.16.0.1 192.168.0.2 871 0x80000002 0xF8EE


Summary Net Link States (Area 1)


Link ID ADV Router Age Seq# Checksum

0.0.0.0 192.168.0.2 1358 0x80000002 0x973A

R3#


查看路由表

R1#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP

i - IS-IS, 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 route


Gateway of last resort is not set


O IA 172.17.0.0/16 [110/3] via 192.168.0.2, 00:30:36, FastEthernet0/0

O IA 172.16.0.0/16 [110/2] via 192.168.0.2, 00:30:36, FastEthernet0/0

C 172.20.0.0/16 is directly connected, FastEthernet0/1

C 192.168.0.0/24 is directly connected, FastEthernet0/0



R2#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP

i - IS-IS, 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 route


Gateway of last resort is not set


O 172.17.0.0/16 [110/2] via 172.16.0.2, 00:47:34, FastEthernet0/1

C 172.16.0.0/16 is directly connected, FastEthernet0/1

O IA 172.20.0.0/16 [110/2] via 192.168.0.1, 00:30:55, FastEthernet0/0

C 192.168.0.0/24 is directly connected, FastEthernet0/0


R3#show ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP

i - IS-IS, 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 route


Gateway of last resort is 172.16.0.1 to network 0.0.0.0


C 172.17.0.0/16 is directly connected, FastEthernet0/1

C 172.16.0.0/16 is directly connected, FastEthernet0/0

O*IA 0.0.0.0/0 [110/2] via 172.16.0.1, 00:47:55, FastEthernet0/0

R3#



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