多区域OSPF综合实验

实验拓扑图：

 

实验过程

1.R1的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R1 R1(config)#interface s1/0 R1(config-if)#no shut R1(config-if)#ip add 192.168.1.1 255.255.255.252 R1(config-if)#interface lo0 R1(config-if)#ip add 10.1.1.1 255.255.255.0 R1(config-if)#interface lo0 R1(config-if)#ip add 10.1.2.1 255.255.255.0 R1(config-if)#exit

2.R2的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R2 R2(config)#interface s1/0 R2(config-if)#no shut R2(config-if)#ip add 192.168.1.2 255.255.255.0 R2(config-if)#interface s1/1 R2(config-if)#no shut R2(config-if)#ip add 192.168.1.5 255.255.255.0 R2(config-if)#exit

3.R3的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R3 R3(config)#interface s1/1 R3(config-if)#no shut R3(config-if)#ip add 192.168.1.6 255.255.255.0 R3(config-if)#interface s1/2 R3(config-if)#no shut R3(config-if)#ip add 192.168.1.9 255.255.255.0 R3(config-if)#exit

4.R4的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R4 R4(config)#interface s1/2 R4(config-if)#no shut R4(config-if)#ip add 192.168.1.10 255.255.255.0 R4(config-if)#interface lo0 R4(config-if)#ip add 172.16.1.1 255.255.255.0 R4(config-if)#interface lo1 R4(config-if)#ip add 172.16.2.1 255.255.255.0 R4(config-if)#exit

5.配置R1的OSPF

R1(config)#router ospf 1  //启动OSPF进程 R1(config-router)#network 10.1.1.1 0.0.0.0 area 1  //使用0.0.0.0精确宣告网络 R1(config-router)#network 10.1.2.1 0.0.0.0 area 1 R1(config-router)#network 192.168.1.1 0.0.0.0 area 1 R1(config-router)#end

6.配置R2的OSPF

R2(config)#router ospf 1 R2(config-router)#network 192.168.1.2 0.0.0.0 area 1 R2(config-router)#network 192.168.1.5 0.0.0.0 area 0 R2(config-router)#end

7.配置R3的OSPF

R3(config)#router ospf 1 R3(config-router)#network 192.168.1.6 0.0.0.0 area 0 R3(config-router)#network 192.168.1.9 0.0.0.0 area 2 R3(config-router)#end

8.配置R4的OSPF

R4(config)#router ospf 1 R4(config-router)#network 192.168.1.10 0.0.0.0 area 2 R4(config-router)#network 172.16.1.1 0.0.0.0 area 2 R4(config-router)#network 172.16.2.1 0.0.0.0 area 2 R4(config-router)#end

9.在R2上查看OSPF邻居

R2#show ip ospf nei   Neighbor ID     Pri   State           Dead Time   Address         Interface 192.168.1.9       0   FULL/  -        00:00:34    192.168.1.6     Serial1/1 10.1.2.1          0   FULL/  -        00:00:37    192.168.1.1     Serial1/0

10.查看R1路由表，查看区域间路由

R1#show ip route ospf      172.16.0.0/32 is subnetted, 2 subnets O IA  172.16.1.1 [110/193] via 192.168.1.2, 00:03:11, Serial1/0  //区域间路由用“O IA”表示 O IA    172.16.2.1 [110/193] via 192.168.1.2, 00:03:01, Serial1/0      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks O       192.168.1.0/24 [110/128] via 192.168.1.2, 00:05:37, Serial1/0

11.查看R1的OSPF链路状态数据库

R1#show ip ospf da               OSPF Router with ID (10.1.2.1) (Process ID 1)                   Router Link States (Area 1) //类型1的LSA   Link ID         ADV Router      Age         Seq#       Checksum Link count 10.1.2.1        10.1.2.1        409         0x80000006 0x00E33E 3 192.168.1.5     192.168.1.5     400         0x80000005 0x007566 2                   Summary Net Link States (Area 1)  //类型3的LS—ABR产生   Link ID         ADV Router      Age         Seq#       Checksum 172.16.1.1      192.168.1.5     249         0x80000001 0x00CCC0 172.16.2.1      192.168.1.5     239         0x80000001 0x00C1CA 192.168.1.0     192.168.1.5     400         0x80000001 0x001E05

12.测试连通性

R1#ping 172.16.1.1   Type 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 = 12/56/80 ms

13.配置R2的区域间路由汇总

R2#config t Enter configuration commands, one per line.  End with CNTL/Z. R2(config)#router ospf 1 R2(config-router)#area 1 range 10.1.0.0 255.255.0.0 R2(config-router)#end

14.查看R4的路由表

R4#show ip route Codes: C - connected, S - static, 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        i - IS-IS, su - IS-IS summary, 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        172.16.0.0/24 is subnetted, 2 subnets C       172.16.1.0 is directly connected, Loopback0 C       172.16.2.0 is directly connected, Loopback1      10.0.0.0/16 is subnetted, 1 subnets O IA    10.1.0.0 [110/193] via 192.168.1.9, 00:00:28, Serial1/2  //出现汇总以后的路由      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks O IA    192.168.1.0/30 [110/256] via 192.168.1.9, 00:09:25, Serial1/2 C       192.168.1.0/24 is directly connected, Serial1/2