项目四 OSPF路由协议v10.docx
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项目四OSPF路由协议v10
［项目四］OSPF路由协议
［项目内容］
任务一：
如图4.1所示的网络拓扑，要求实现以下任务：
（1）配置路由器各个端口的IP地址，保证直连链路通；
（2）配置OSPF路由协议，保证OSPF区域路由正常；
（3）将区域1配置成完全末节区域；
（4）区域0需要MD5认证，密码为cisco；
图4.1网络拓扑
任务二：
如图4.2所示，要求将区域1配置成次末节区域NSSA。
图4.2OSPFNSSA区域配置
任务三：
（1）如图4.3所示，配置OSPF中不连续区域0的虚拟链路。
图4.3不连续区域0的虚拟链路
（2）如图4.4所示，配置OSPF中远离区域0的虚拟链路的配置。
图4.4远离区域0的虚拟链路
［操作步骤］
一．OSPF路由协议的配置
1．搭建网络环境
绘制如图4.1所示的网络拓扑并配置好路由器和计算机的端口及IP地址。
2．OSPF的基本配置
2.1基本配置
（1）配置R1
R1（config）#routerospf1
R1（config-router）#network12.12.12.00.0.0.255area1
R1（config-router）#network1.1.1.00.0.0.255area1
（2）配置R2
R2（config）#routerospf1
R2（config-router）#network12.12.12.00.0.0.255area1
R2（config-router）#network23.23.23.00.0.0.255area0
R2（config-router）#network2.2.2.00.0.0.255area0
（3）配置R3
R3（config）#routerospf1
R3（config-router）#network23.23.23.00.0.0.255area0
R3（config-router）#network3.3.3.00.0.0.255area0
R3（config-router）#network34.34.34.00.0.0.255area2
（3）配置R4
R4（config）#routerospf1
R4（config-router）#network34.34.34.00.0.0.255area2
R4（config-router）#network4.4.4.00.0.0.255area2
2.2认证
（1）showiproute
R1#showiproute
Gatewayoflastresortisnotset
1.0.0.0/24issubnetted,1subnets
C1.1.1.0isdirectlyconnected,Loopback0
2.0.0.0/32issubnetted,1subnets
OIA2.2.2.2[110/782]via12.12.12.2,00:
00:
30,Serial1/0
3.0.0.0/32issubnetted,1subnets
OIA3.3.3.3[110/783]via12.12.12.2,00:
00:
30,Serial1/0
4.0.0.0/32issubnetted,1subnets
OIA4.4.4.4[110/1564]via12.12.12.2,00:
00:
20,Serial1/0
12.0.0.0/24issubnetted,1subnets
C12.12.12.0isdirectlyconnected,Serial1/0
23.0.0.0/24issubnetted,1subnets
OIA23.23.23.0[110/782]via12.12.12.2,00:
00:
30,Serial1/0
34.0.0.0/24issubnetted,1subnets
OIA34.34.34.0[110/1563]via12.12.12.2,00:
00:
20,Serial1/0
R2#showiproute
Gatewayoflastresortisnotset
1.0.0.0/32issubnetted,1subnets
O1.1.1.1[110/782]via12.12.12.1,00:
04:
00,Serial1/0
2.0.0.0/24issubnetted,1subnets
C2.2.2.0isdirectlyconnected,Loopback0
3.0.0.0/32issubnetted,1subnets
O3.3.3.3[110/2]via23.23.23.3,00:
03:
29,FastEthernet0/0
4.0.0.0/32issubnetted,1subnets
OIA4.4.4.4[110/783]via23.23.23.3,00:
03:
19,FastEthernet0/0
12.0.0.0/24issubnetted,1subnets
C12.12.12.0isdirectlyconnected,Serial1/0
23.0.0.0/24issubnetted,1subnets
C23.23.23.0isdirectlyconnected,FastEthernet0/0
34.0.0.0/24issubnetted,1subnets
OIA34.34.34.0[110/782]via23.23.23.3,00:
03:
19,FastEthernet0/0
R3#showiproute
Gatewayoflastresortisnotset
1.0.0.0/32issubnetted,1subnets
OIA1.1.1.1[110/783]via23.23.23.2,00:
04:
39,FastEthernet0/0
2.0.0.0/32issubnetted,1subnets
O2.2.2.2[110/2]via23.23.23.2,00:
04:
49,FastEthernet0/0
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Loopback0
4.0.0.0/32issubnetted,1subnets
O4.4.4.4[110/782]via34.34.34.4,00:
05:
19,Serial1/0
12.0.0.0/24issubnetted,1subnets
OIA12.12.12.0[110/782]via23.23.23.2,00:
04:
39,FastEthernet0/0
23.0.0.0/24issubnetted,1subnets
C23.23.23.0isdirectlyconnected,FastEthernet0/0
34.0.0.0/24issubnetted,1subnets
C34.34.34.0isdirectlyconnected,Serial1/0
R4#showiproute
Gatewayoflastresortisnotset
1.0.0.0/32issubnetted,1subnets
OIA1.1.1.1[110/1564]via34.34.34.3,00:
06:
03,Serial1/0
2.0.0.0/32issubnetted,1subnets
OIA2.2.2.2[110/783]via34.34.34.3,00:
06:
13,Serial1/0
3.0.0.0/32issubnetted,1subnets
OIA3.3.3.3[110/782]via34.34.34.3,00:
06:
13,Serial1/0
4.0.0.0/24issubnetted,1subnets
C4.4.4.0isdirectlyconnected,Loopback0
12.0.0.0/24issubnetted,1subnets
OIA12.12.12.0[110/1563]via34.34.34.3,00:
06:
03,Serial1/0
23.0.0.0/24issubnetted,1subnets
OIA23.23.23.0[110/782]via34.34.34.3,00:
06:
13,Serial1/0
34.0.0.0/24issubnetted,1subnets
C34.34.34.0isdirectlyconnected,Serial1/0
（2）showipospfneighbor
R1#showipospfneighbor
NeighborIDPriStateDeadTimeAddressInterface
2.2.2.21FULL/-00:
00:
3212.12.12.2Serial1/0
R2#showipospfneighbor
NeighborIDPriStateDeadTimeAddressInterface
1.1.1.11FULL/-00:
00:
3312.12.12.1Serial1/0
3.3.3.31FULL/DR00:
00:
3323.23.23.3FastEthernet0/0
R3#showipospfneighbor
NeighborIDPriStateDeadTimeAddressInterface
2.2.2.21FULL/BDR00:
00:
3923.23.23.2FastEthernet0/0
4.4.4.41FULL/-00:
00:
3934.34.34.4Serial1/0
二、配置完全末节区域1
1.配置
R1（config）#routerospf1
R1（config-router）#area1stub
R2（config）#routerospf1
R2（config-router）#area1stubno-summary
2.认证
R1#showiproute
Gatewayoflastresortis12.12.12.2tonetwork0.0.0.0
1.0.0.0/24issubnetted,1subnets
C1.1.1.0isdirectlyconnected,Loopback0
12.0.0.0/24issubnetted,1subnets
C12.12.12.0isdirectlyconnected,Serial1/0
O*IA0.0.0.0/0[110/782]via12.12.12.2,00:
03:
08,Serial1/0
R2#showiproute
Gatewayoflastresortisnotset
1.0.0.0/32issubnetted,1subnets
O1.1.1.1[110/782]via12.12.12.1,00:
02:
30,Serial1/0
2.0.0.0/24issubnetted,1subnets
C2.2.2.0isdirectlyconnected,Loopback0
3.0.0.0/32issubnetted,1subnets
O3.3.3.3[110/2]via23.23.23.3,00:
02:
00,FastEthernet0/0
4.0.0.0/32issubnetted,1subnets
OIA4.4.4.4[110/783]via23.23.23.3,00:
01:
50,FastEthernet0/0
12.0.0.0/24issubnetted,1subnets
C12.12.12.0isdirectlyconnected,Serial1/0
23.0.0.0/24issubnetted,1subnets
C23.23.23.0isdirectlyconnected,FastEthernet0/0
34.0.0.0/24issubnetted,1subnets
OIA34.34.34.0[110/782]via23.23.23.3,00:
01:
50,FastEthernet0/0
三．配置OSPFMD5认证
1．配置
R2（config）#routerospf1
R2（config-router）#area0authenticationmessage-digest
R2（config-router）#exit
R2（config）#intf0/0
R2（config-if）#ipospfmessage-digest-key1md5cisco
R3（config）#routerospf1
R3（config-router）#area0authenticationmessage-digest
R2（config-router）#exit
R3（config）#intf0/0
R3（config-if）#ipospfmessage-digest-key1md5cisco
2．认证
R2#showipospfinterfacef0/0
FastEthernet0/0isup,lineprotocolisup
Internetaddressis23.23.23.2/24,Area0
ProcessID1,RouterID2.2.2.2,NetworkTypeBROADCAST,Cost:
1
TransmitDelayis1sec,StateBDR,Priority1
DesignatedRouter（ID）3.3.3.3,Interfaceaddress23.23.23.3
BackupDesignatedRouter（ID）2.2.2.2,Interfaceaddress23.23.23.2
Timerintervalsconfigured,Hello10,Dead40,Wait40,Retransmit5
Helloduein00:
00:
06
Index3/3,floodqueuelength0
Next0x0（0）/0x0（0）
Lastfloodscanlengthis1,maximumis1
Lastfloodscantimeis0msec,maximumis0msec
NeighborCountis1,Adjacentneighborcountis1
Adjacentwithneighbor23.23.23.3（DesignatedRouter）
Suppresshellofor0neighbor（s）
Messagedigestauthenticationenabled
Youngestkeyidis1
R3#showipospfinterfacef0/0
FastEthernet0/0isup,lineprotocolisup
Internetaddressis23.23.23.3/24,Area0
ProcessID1,RouterID3.3.3.3,NetworkTypeBROADCAST,Cost:
1
TransmitDelayis1sec,StateDR,Priority1
DesignatedRouter（ID）3.3.3.3,Interfaceaddress23.23.23.3
BackupDesignatedRouter（ID）2.2.2.2,Interfaceaddress23.23.23.2
Timerintervalsconfigured,Hello10,Dead40,Wait40,Retransmit5
Helloduein00:
00:
07
Index3/3,floodqueuelength0
Next0x0（0）/0x0（0）
Lastfloodscanlengthis1,maximumis1
Lastfloodscantimeis0msec,maximumis0msec
NeighborCountis1,Adjacentneighborcountis1
Adjacentwithneighbor23.23.23.2（BackupDesignatedRouter）
Suppresshellofor0neighbor（s）
Messagedigestauthenticationenabled
Youngestkeyidis1
四．配置次末节区域
（packettracer5.1不支持此功能）
1．搭建网络环境
绘制如图4.2所示的网络拓扑并配置好路由器和计算机的端口及IP地址。
2．配置
R1（config）#routerrip
R1（config-router）#version2
R1（config-router）#network12.0.0.0
R1（config-router）#network1.0.0.0
R1（config-router）#noauto-summary
R2（config）#routerrip
R2（config-router）#version2
R2（config-router）#network12.0.0.0
R2（config-router）#noauto-summary
R2（config-router）#exit
R2（config-router）#routerospf1
R2（config-router）#network23.23.23.00.0.0.255area1
R2（config-router）#network2.2.2.00.0.0.255area1
R2（config-router）#area1nssa
R2（config-router）#redistributeripsubnet
R3（config-router）#routerospf1
R3（config-router）#network23.23.23.00.0.0.255area1
R3（config-router）#network3.3.3.00.0.0.255area0
R3（config-router）#network34.34.34.00.0.0.255area0
R3（config-router）#area1nssa
R4（config-router）#routerospf1
R4（config-router）#network34.34.34.00.0.0.255area0
R4（config-router）#network4.4.4.00.0.0.255area0
3．认证
R3#showiproute
Gatewayoflastresortisnotset
1.0.0.0/24issubnetted,1subnets
ON21.1.1.0[110/20]via23.23.23.2,00:
12:
54,Serial1/1
2.0.0.0/32issubnetted,1subnets
O2.2.2.2[110/782]via23.23.23.2,00:
12:
54,Serial1/1
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Loopback0
4.0.0.0/32issubnetted,1subnets
O4.4.4.4[110/782]via34.34.34.4,00:
12:
49,Serial1/0
12.0.0.0/24issubnetted,1subnets
ON212.12.12.0[110/20]via23.23.23.2,00:
12:
54,Serial1/1
23.0.0.0/24issubnetted,1subnets
C23.23.23.0isdirectlyconnected,Serial1/1
34.0.0.0/24issubnetted,1subnets
C34.34.34.0isdirectlyconnected,Serial1/0
R3的路由表中包含了类型7（N2）的路由。
R4#showiproute
Gatewayoflastresortisnotset
1.0.0.0/24issubnetted,1subnets
OE21.1.1.0[110/20]via34.34.34.3,00:
13:
29,Serial1/0
2.0.0.0/32issubnetted,1subnets
OIA2.2.2.2[110/1563]via34.34.34.3,00:
13:
29,Serial1/0
3.0.0.0/32issubnetted,1subnets
O3.3.3.3[110/782]via34.34.34.3,00:
13:
29,Serial1/0
4.0.0.0/24issubnetted,1subnets
C4.4.4.0isdirectlyconnected,Loopback0
12.0.0.0/24issubnetted,1subnets
OE212.12.12.0[110/20]via34.34.34.3,00:
13:
29,Serial1/0
23.0.0.0/24issubnetted,1subnets
OIA23.2
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