OSPF Stub区域配置实例
1.拓扑图配置步骤
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 terminalR1(config)#interface ran f0/0 , f0/1R1(config-if)#no shutR1(config-if)#interface f0/0R1(config-if)#ip address 192.168.0.1 255.255.255.0R1(config)#interface f0/1R1(config-if)#no shutR1(config-if)#ip add 172.20.0.1 255.255.0.0R1(config-if)#exit
R1(config)#router ospf 1R1(config-router)#?R1(config-router)#network 192.168.0.0 0.0.0.255 area 0R1(config-router)#network 172.20.0.0 0.0.255.255 area 2R1(config-router)#exitR1(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 count192.168.0.1 192.168.0.1 1584 0x80000006 0xF38E 1192.168.0.2 192.168.0.2 1455 0x80000005 0xF38C 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum192.168.0.2 192.168.0.2 1455 0x80000002 0x9CEF
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum172.16.0.0 192.168.0.2 715 0x80000004 0xEF21172.17.0.0 192.168.0.2 715 0x80000002 0xF11F172.20.0.0 192.168.0.1 1575 0x80000001 0xCB45
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count192.168.0.1 192.168.0.1 1584 0x80000001 0x8912 1
Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum172.16.0.0 192.168.0.1 1595 0x80000001 0x60E172.17.0.0 192.168.0.1 1595 0x80000001 0x40E192.168.0.0 192.168.0.1 1595 0x80000001 0xCF98R1#
R2#configR2(config)#interface ran f0/0 ,f0/1R2(config-if)#no shutR2(config-if)#interface f0/0R2(config-if)#ip address 192.168.0.2 255.255.255.0R2(config-if)#interface f0/1R2(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 networknon-broadcast Specify OSPF NBMA networkpoint-to-multipoint Specify OSPF point-to-multipoint networkpoint-to-point Specify OSPF point-to-point networkR2(config-if)#exit
R2(config)#router ospf 3R2(config-router)#network 192.168.0.0 0.0.0.255 area 0R2(config-router)#network 172.16.0.0 0.0.255.255 area 1
R2(config)#router ospf 3R2(config-router)#?Router configuration commands:area OSPF area parametersR2(config-router)#area ?<0-4294967295> OSPF area ID as a decimal valueA.B.C.D OSPF area ID in IP address format
R2(config-router)#area 1 ?authentication Enable authenticationdefault-cost Set the summary default-cost of a NSSA/stub areanssa Specify a NSSA arearange Summarize routes matching address/mask (border routers only)stub Specify a stub areavirtual-link Define a virtual link and its parameters
R2(config-router)#area 1 stub ?no-summary Do not send summary LSA into stub area
R2(config-router)#area 1 stub no-summaryR2(config-router)# endR2#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 count192.168.0.1 192.168.0.1 363 0x80000007 0xF18F 1192.168.0.2 192.168.0.2 63 0x80000006 0xF18D 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum192.168.0.2 192.168.0.2 63 0x80000003 0x9AF0
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum172.16.0.0 192.168.0.2 1323 0x80000004 0xEF21172.17.0.0 192.168.0.2 1323 0x80000002 0xF11F172.20.0.0 192.168.0.1 363 0x80000002 0xC946
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count172.17.0.1 172.17.0.1 1309 0x80000004 0xEB7D 2192.168.0.2 192.168.0.2 1333 0x80000004 0xA638 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum172.16.0.1 192.168.0.2 1333 0x80000002 0xF8EE
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum0.0.0.0 192.168.0.2 1820 0x80000002 0x973A
R3#configR3(config)#inter ran f0/0 , f0/1R3(config-if)#no shut
R3(config-if)#interface f0/0R3(config-if)#ip address 172.16.0.2 255.255.0.0R3(config-if)#interface f0/1R3(config-if)#ip address 172.17.0.1 255.255.0.0R3(config-if)#exit
R3(config)#router ospf 1R3(config-router)#network 172.16.0.0 0.0.255.255 area 1R3(config-router)#network 172.17.0.0 0.0.255.255 area 1
R3(config-router)#area 1 stub no-summaryR3(config-router) #endR3#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 count172.17.0.1 172.17.0.1 32 0x80000003 0xED7C 2192.168.0.2 192.168.0.2 33 0x80000003 0xA837 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum172.16.0.1 192.168.0.2 33 0x80000001 0xFAED
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum0.0.0.0 192.168.0.2 457 0x80000001 0x9939
R3#show ip interface briefInterface IP-Address OK? Method Status ProtocolFastEthernet0/0 172.16.0.2 YES manual up upFastEthernet0/1 172.17.0.1 YES manual up upR3#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 count172.17.0.1 172.17.0.1 855 0x80000004 0xEB7D 2192.168.0.2 192.168.0.2 871 0x80000004 0xA638 1
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum172.16.0.1 192.168.0.2 871 0x80000002 0xF8EE
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum0.0.0.0 192.168.0.2 1358 0x80000002 0x973AR3#
查看路由表
R1#show ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - 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 - ODRP - periodic downloaded static route
Gateway of last resort is not set
O IA 172.17.0.0/16 via 192.168.0.2, 00:30:36, FastEthernet0/0O IA 172.16.0.0/16 via 192.168.0.2, 00:30:36, FastEthernet0/0C 172.20.0.0/16 is directly connected, FastEthernet0/1C 192.168.0.0/24 is directly connected, FastEthernet0/0
R2#show ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - 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 - ODRP - periodic downloaded static route
Gateway of last resort is not set
O 172.17.0.0/16 via 172.16.0.2, 00:47:34, FastEthernet0/1C 172.16.0.0/16 is directly connected, FastEthernet0/1O IA 172.20.0.0/16 via 192.168.0.1, 00:30:55, FastEthernet0/0C 192.168.0.0/24 is directly connected, FastEthernet0/0
R3#show ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - 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 - ODRP - 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, FastEthernet0/1C 172.16.0.0/16 is directly connected, FastEthernet0/0O*IA 0.0.0.0/0 via 172.16.0.1, 00:47:55, FastEthernet0/0R3#
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