ConfiguringBasicMultiAreaOSPFandAreaSummary.doc

实验目的：1、掌握多区域的OSPF配置方法。2、区别不同区域的路由。3、掌握OSPF的路由汇总配置。4、掌握OSPF的基本配置命令。实验拓扑图：实验步骤及要求：1、配置各台路由器的IP地址，并且使用Ping命令确认各路由器的直连口的互通性。2、在R1上进行area 1区域OSPF配置。R1(config)#router ospf 1R1(config-router)#network 10.1.2.0 0.0.0.255 area 1R1(config-router)#network 10.1.1.0 0.0.0.255 area 1R1(config-router)#network 192.168.1.0 0.0.0.3 area 1R1(config-router)#exit3、在R2上进行area1与area2的区域边界路由器(ABR)的OSPF配置。R2(config)#router ospf 1R2(config-router)#network 192.168.1.0 0.0.0.3 area 1R2(config-router)#network 192.168.1.4 0.0.0.3 area 0R2(config)#exit4、参照R1与R2的配置，完成R3与R4的配置。5、在任一路由器上，查看OSPF邻居表。R2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface192.168.1.9 1 FULL/ - 00:00:39 192.168.1.6 Serial1/110.1.2.1 1 FULL/ - 00:00:37 192.168.1.1 Serial1/0R2#6、查看R1的路由表，观察其它区域路由。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 - EGPGateway of last resort is not set 172.16.0.0/32 is subnetted, 2 subnetsO IA 172.16.1.1 110/193 via 192.168.1.2, 00:02:23, Serial1/1O IA 172.16.2.1 110/193 via 192.168.1.2, 00:02:23, Serial1/1 10.0.0.0/24 is subnetted, 2 subnetsC 10.1.2.0 is directly connected, Loopback1C 10.1.1.0 is directly connected, Loopback0 192.168.1.0/30 is subnetted, 3 subnetsO IA 192.168.1.8 110/192 via 192.168.1.2, 00:02:58, Serial1/1C 192.168.1.0 is directly connected, Serial1/1O IA 192.168.1.4 110/128 via 192.168.1.2, 00:05:06, Serial1/1R1#7、查看R1的OSPF链路状态数据库。R1#show ip ospf database OSPF Router with ID (10.1.2.1) (Process ID 1) Router Link States (Area 1)Link ID ADV Router Age Seq# Checksum Link count10.1.2.1 10.1.2.1 492 0x80000004 0x00C83F 4192.168.1.5 192.168.1.5 486 0x80000003 0x002BB5 2 Summary Net Link States (Area 1)Link ID ADV Router Age Seq# Checksum172.16.1.1 192.168.1.5 315 0x80000001 0x00CCC0172.16.2.1 192.168.1.5 315 0x80000001 0x00C1CA192.168.1.4 192.168.1.5 479 0x80000001 0x00E33E192.168.1.8 192.168.1.5 350 0x80000001 0x003E9FR1#8、在R1上使用ping命令确认路由的有效性。R1#ping 172.16.1.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:!Success rate is 100 percent (5/5), round-trip min/avg/max = 216/240/288 msR1#9、查看R4的路由表和ospf的链路状态数据库。R4#show ip route 172.16.0.0/24 is subnetted, 2 subnetsC 172.16.1.0 is directly connected, Loopback0C 172.16.2.0 is directly connected, Loopback1 10.0.0.0/24 is subnetted, 2 subnetsO IA 10.1.2.0 110/193 via 192.168.1.9, 00:15:14, Serial1/0O IA 10.1.1.0 110/193 via 192.168.1.9, 00:15:14, Serial1/0 192.168.1.0/30 is subnetted, 3 subnetsC 192.168.1.8 is directly connected, Serial1/0O IA 192.168.1.0 110/192 via 192.168.1.9, 00:15:14, Serial1/0O IA 192.168.1.4 110/128 via 192.168.1.9, 00:15:14, Serial1/0R4#R4#show ip ospf database OSPF Router with ID (172.16.2.1) (Process ID 1) Router Link States (Area 2)Link ID ADV Router Age Seq# Checksum Link count172.16.2.1 172.16.2.1 1223 0x80000004 0x00B871 4192.168.1.9 192.168.1.9 1224 0x80000002 0x00EA2E 2 Summary Net Link States (Area 2)Link ID ADV Router Age Seq# Checksum10.1.1.0 192.168.1.9 2 0x80000001 0x00B58610.1.2.0 192.168.1.9 2 0x80000001 0x00AA90192.168.1.0 192.168.1.9 1265 0x80000001 0x00766B192.168.1.4 192.168.1.9 1265 0x80000001 0x00CB52R4#可以发现R4路由器学习到area1区域的具体路由，其实，可以通过在R2(ABR)上可以对area1的路由进行汇总，通过汇总可以有效的减少路由表的大小，限制LSA扩散。10、配置R2的区域汇总。R2(config)#router ospf 1R2(config-router)#area 1 range 10.1.0.0 255.255.0.0R2(config-router)#exitR2(config)#exit11、再次查看R4的路由表和数据库。R4#show ip route 172.16.0.0/24 is subnetted, 2 subnetsC 172.16.1.0 is directly connected, Loopback0C 172.16.2.0 is directly connected, Loopback1 10.0.0.0/16 is subnetted, 1 subnetsO IA 10.1.0.0 110/193 via 192.168.1.9, 00:00:32, Serial1/0 192.168.1.0/30 is subnetted, 3 subnetsC 192.168.1.8 is directly connected, Serial1/0O IA 192.168.1.0 110/192 via 192.168.1.9, 00:18:36, Serial1/0O IA 192.168.1.4 110/128 via 192.168.1.9, 00:18:36, Serial1/0R4#R4#show ip ospf database OSPF Router with ID (172.16.2.1) (Process ID 1) Router Link States (Area 2)Link ID ADV Router Age Seq# Checksum Link count172.16.2.1 172.16.2.1 6 0x80000005 0x00B672 4192.168.1.9 192.168.1.9 13 0x80000004 0x00E63