OSPF特殊区域之stub和totally stub配置（一）

实验拓扑：

 

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)#int lo0 R1(config-if)#ip add 172.16.1.1 255.255.255.0 R1(config-if)#exit R1(config)#int s0/0 R1(config-if)#no shut R1(config-if)#ip add 172.16.255.1 255.255.255.252 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)#int s0/0 R2(config-if)#no shut R2(config-if)#ip add 172.16.255.2 255.255.255.252 R2(config-if)#exit R2(config)#int s0/1 R2(config-if)#no shut R2(config-if)#ip add 172.16.255.5 255.255.255.252 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)#int s0/1 R3(config-if)#no shut R3(config-if)#ip add 172.16.255.6 255.255.255.252 R3(config-if)#exit R3(config)#int s0/2 R3(config-if)#no shut R3(config-if)#ip add 172.16.255.9 255.255.255.252 R3(config-if)#exit R3(config)#int f1/0 R3(config-if)#no shut R3(config-if)#ip add 192.168.1.1 255.255.255.0 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)#int s0/2 R4(config-if)#no shut R4(config-if)#ip add 172.16.255.10 255.255.255.0 R4(config-if)#exit R4(config)#int lo0 R4(config-if)#ip add 172.16.2.1 255.255.255.0 R4(config-if)#exit

5.R5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 R5 R5(config)#int f1/0 R5(config-if)#no shut R5(config-if)#ip add 192.168.1.2 255.255.255.0 R5(config-if)#exit R5(config)#int lo0 R5(config-if)#ip add 10.1.1.1 255.0.0.0 R5(config-if)#exit

6.配置R1的OSPF

R1(config)#router ospf 1 R1(config-router)#net 172.16.1.1 0.0.0.0 area 1 R1(config-router)#net 172.16.255.1 0.0.0.0 area 1 R1(config-router)#end

7.配置R2的OSPF

R2(config)#router ospf 1 R2(config-router)#net 172.16.255.2 0.0.0.0 area 1 R2(config-router)#net 172.16.255.5 0.0.0.0 area 0 R2(config-router)#end

8.配置R3的OSPF和RIP

R3(config)#router ospf 1 R3(config-router)#net 172.16.255.6 0.0.0.0  area 0 R3(config-router)#net 172.16.255.9 0.0.0.0 area 0 R3(config-router)#exit R3(config)#router rip R3(config-router)#version 2 R3(config-router)#no auto R3(config-router)#net 192.168.1.0 R3(config-router)#exit R3(config)#router ospf 1 R3(config-router)#redistribute rip subnets metric 200  //把rip重发布到OSPF网络中 R3(config-router)#exit R3(config)#router rip R3(config-router)#redistribute ospf 1 metric 10  //把OSPF重发布到rip网络中 R3(config-router)#exit R3(config)#end

9.配置R4的OSPF

R4(config)#router ospf 1 R4(config-router)#net 172.16.255.10 0.0.0.0 area 0 R4(config-router)#net 172.16.2.1 0.0.0.0 area 2 R4(config-router)#end

10.配置R5的RIP

R5(config)#router rip R5(config-router)#version 2 R5(config-router)#no auto R5(config-router)#net 192.168.1.0 R5(config-router)#net 10.0.0.0 R5(config-router)#end

11.查看R1的链路状态数据库

R1#show ip ospf da               OSPF Router with ID (172.16.1.1) (Process ID 1)                   Router Link States (Area 1)  //1型的LSA   Link ID         ADV Router      Age         Seq#       Checksum Link count 172.16.1.1      172.16.1.1      607         0x80000002 0x005FBD 3 172.16.255.5    172.16.255.5    608         0x80000001 0x0039AF 2                   Summary Net Link States (Area 1)  //3型的LSA   Link ID         ADV Router      Age         Seq#       Checksum 172.16.2.1      172.16.255.5    516         0x80000001 0x0042F7 172.16.255.0    172.16.255.5    519         0x80000001 0x00DA23 172.16.255.4    172.16.255.5    603         0x80000001 0x009BE1 172.16.255.8    172.16.255.5    529         0x80000001 0x00F543                   Summary ASB Link States (Area 1)  //4型的LSA   Link ID         ADV Router      Age         Seq#       Checksum 192.168.1.1     172.16.255.5    437         0x80000001 0x008648                   Type-5 AS External Link States  //5型的LSA           Link ID         ADV Router      Age         Seq#       Checksum Tag 10.0.0.0        192.168.1.1     442         0x80000001 0x005B1B 0 192.168.1.0     192.168.1.1     444         0x80000001 0x0021F4 0

12.查看R1的路由表

R1#show ip route ospf      172.16.0.0/16 is variably subnetted, 6 subnets, 3 masks O IA    172.16.255.0/24 [110/256] via 172.16.255.2, 00:10:21, Serial0/0 O IA    172.16.255.4/30 [110/128] via 172.16.255.2, 00:11:45, Serial0/0 O IA    172.16.255.8/30 [110/192] via 172.16.255.2, 00:10:31, Serial0/0 O IA    172.16.2.1/32 [110/193] via 172.16.255.2, 00:10:18, Serial0/0 O E2 10.0.0.0/8 [110/200] via 172.16.255.2, 00:08:54, Serial0/0 O E2 192.168.1.0/24 [110/200] via 172.16.255.2, 00:08:54, Serial0/0

说明：O IA是区域间路由，O E2 是重发布的路由。

 

13.测试连通性

R1#ping 10.1.1.1   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/55/104 ms R1#ping 172.16.2.1   Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/74/120 ms