OSPF 多区域配置

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ospf

 

实验拓扑及网络规划:如上图

 

 

实验任务和目标:

任务1.按照实验要求连接拓扑。

任务2.完成所有网络基本IP配置【环回除外】,并测试网络联通性。

任务3.启动骨干区域AREA 0OSPF进程。

任务4.启动末节区域AREA 1OSPF进程。

任务5.启动完全末节区域AREA12OSPF进程。

任务6.测试网络连通性,观察路由表,观察内置表,观察邻居表,观察BORD-ROUTER【截图验证】

任务7.修改AREA 12的完全末节区域为标准区域,配置环回接口。

任务8.发布OSPF AS外部直连环回接口OSPF  AS中,并配置ROUTER 6的缺省路由,并测试ROUTER 7ROUTER 6的环回连通性【截图验证】

任务9.观察路由表,观察BORD-ROUTER【截图验证】。

 

 

实验操作过程及配置说明:

 

任务1.按照实验要求连接拓扑。

 

11

 

 

任务2.完成所有网络基本IP配置【环回除外】,并测试网络联通性。

 

 

r1#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  192.168.1.1     YES manual up                    up     

Serial0/1                  192.168.1.5     YES manual up                    up     

Serial0/2                  192.168.1.9     YES manual up                    up     

Serial0/3                  10.1.1.2        YES manual up                    up     

 

r2#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  192.168.1.2     YES manual up                    up     

Serial0/1                  192.168.1.6     YES manual up                    up     

Serial0/2                  unassigned      YES unset  administratively down down   

Serial0/3                  unassigned      YES unset  administratively down down   

Ethernet1/0                unassigned      YES unset  administratively down down   

Ethernet1/1                192.168.1.13    YES manual up                    up     

Ethernet1/2                unassigned      YES unset  administratively down down 

 

r3#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  unassigned      YES unset  administratively down down   

Serial0/1                  unassigned      YES unset  administratively down down   

Serial0/2                  192.168.1.10    YES manual up                    up     

Serial0/3                  unassigned      YES unset  administratively down down   

Ethernet1/0                unassigned      YES unset  administratively down down   

Ethernet1/1                192.168.1.14    YES manual up                    up     

Ethernet1/2                unassigned      YES unset  administratively down down   

Ethernet1/3                unassigned      YES unset  administratively down down   

 

 

r4#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  192.168.12.1    YES manual up                    up     

Serial0/1                  192.168.12.5    YES manual up                    up     

Serial0/2                  192.168.12.9    YES manual up                    up     

Serial0/3                  10.12.12.2      YES manual up                    up     

 

 

r5#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  192.168.12.2    YES manual up                    up     

Serial0/1                  192.168.12.6    YES manual up                    up     

Serial0/2                  unassigned      YES unset  administratively down down   

Serial0/3                  unassigned      YES unset  administratively down down   

Ethernet1/0                unassigned      YES unset  administratively down down   

Ethernet1/1                192.168.12.13   YES manual up                    up     

Ethernet1/2                unassigned      YES unset  administratively down down   

Ethernet1/3                unassigned      YES unset  administratively down down

 

 

r6#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  unassigned      YES unset  administratively down down   

Serial0/1                  unassigned      YES unset  administratively down down   

Serial0/2                  192.168.12.10   YES manual up                    up     

Serial0/3                  unassigned      YES unset  administratively down down   

Ethernet1/0                unassigned      YES unset  administratively down down   

Ethernet1/1                192.168.12.14   YES manual up                    up     

Ethernet1/2                unassigned      YES unset  administratively down down   

Ethernet1/3                unassigned      YES unset  administratively down down   

 

 

r7#show ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                  unassigned      YES unset  administratively down down   

Serial0/1                  10.1.1.1        YES manual up                    up     

Serial0/2                  10.12.12.1      YES manual up                    up     

Serial0/3                  unassigned      YES unset  administratively down down

 

 

 

任务3.启动骨干区域AREA 0OSPF进程。

 

r7(config)#router ospf 10

r7(config-router)#router-id 7.7.7.7

r7(config-router)#network 10.1.1.1 0.0.0.0 a 0

r7(config-router)#network 10.12.12.1 0.0.0.0 a 0

r7(config-router)#end

 

r1(config)#router ospf 10

r1(config-router)#router-id 1.1.1.1

r1(config-router)#network 10.1.1.2 0.0.0.0 a 0

r1(config-router)#end

 

r4(config)#router ospf 10

r4(config-router)#router-id 4.4.4.4

r4(config-router)#network 10.12.12.2 0.0.0.0 a 0

r4(config-router)#end

 

 

任务4.启动末节区域AREA 1OSPF进程。(stub)

 

r1(config)#router ospf 10

r1(config-router)#network 192.168.1.1 0.0.0.0 area 1

r1(config-router)#network 192.168.1.5 0.0.0.0 area 1

r1(config-router)#network 192.168.1.9 0.0.0.0 area 1

r1(config-router)#network 10.1.1.2 0.0.0.0 area 0

r1(config-router)#area 1 stub

 

r2(config)#router ospf 10

r2(config-router)#network 192.168.1.2 0.0.0.0 area 1

r2(config-router)#network 192.168.1.6 0.0.0.0 area 1

r2(config-router)#network 192.168.1.13 0.0.0.0 area 1

r2(config-router)#area 1 stub

 

r3(config)#router ospf 10

r3(config-router)#network 192.168.1.10 0.0.0.0 area 1

r3(config-router)#network 192.168.1.14 0.0.0.0 area 1

r3(config-router)#area 1 stub

 

r1#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

     10.0.0.0/24 is subnetted, 2 subnets

O       10.12.12.0 [110/128] via 10.1.1.1, 00:46:23, Serial0/3

C       10.1.1.0 is directly connected, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

O       192.168.1.12 [110/74] via 192.168.1.10, 00:45:31, Serial0/2

                     [110/74] via 192.168.1.6, 00:45:31, Serial0/1

                     [110/74] via 192.168.1.2, 00:45:31, Serial0/0

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

 

 

r2#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 192.168.1.5 to network 0.0.0.0

 

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.5, 00:45:38, Serial0/1

                   [110/192] via 192.168.1.1, 00:45:38, Serial0/0

O IA    10.1.1.0 [110/128] via 192.168.1.5, 00:45:38, Serial0/1

                 [110/128] via 192.168.1.1, 00:45:38, Serial0/0

     192.168.1.0/30 is subnetted, 4 subnets

O       192.168.1.8 [110/74] via 192.168.1.14, 00:45:38, Ethernet1/1

C       192.168.1.12 is directly connected, Ethernet1/1

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.5, 00:45:38, Serial0/1

               [110/65] via 192.168.1.1, 00:45:38, Serial0/0

 

r3#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 192.168.1.9 to network 0.0.0.0

 

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.9, 00:45:38, Serial0/2

O IA    10.1.1.0 [110/128] via 192.168.1.9, 00:45:38, Serial0/2

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

C       192.168.1.12 is directly connected, Ethernet1/1

O       192.168.1.0 [110/74] via 192.168.1.13, 00:45:38, Ethernet1/1

O       192.168.1.4 [110/74] via 192.168.1.13, 00:45:38, Ethernet1/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.9, 00:45:38, Serial0/2

 

 

任务5.启动完全末节区域AREA12OSPF进程。(totally  stubby)

 

r4(config)#router ospf 10

r4(config-router)#network 192.168.12.1 0.0.0.0 area 12

r4(config-router)#network 192.168.12.5 0.0.0.0 area 12

r4(config-router)#network 192.168.12.9 0.0.0.0 area 12

r4(config-router)#network 10.12.12.2 0.0.0.0 area 0

r4(config-router)#area 12 stub no-summary

 

 

r5(config)#router ospf 10

r5(config-router)#network 192.168.12.2 0.0.0.0 area 12

r5(config-router)#network 192.168.12.6 0.0.0.0 area 12

r5(config-router)#network 192.168.12.13 0.0.0.0 area 12

r5(config-router)#area 12 stub

 

r6(config)#router ospf 10

r6(config-router)#network 192.168.12.10 0.0.0.0 area 12

r6(config-router)#network 192.168.12.14 0.0.0.0 area 12

r6(config-router)#area 12 stub

 

r5#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 192.168.12.5 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

C       192.168.12.12 is directly connected, Ethernet1/1

O       192.168.12.8 [110/74] via 192.168.12.14, 00:00:00, Ethernet1/1

O*IA 0.0.0.0/0 [110/65] via 192.168.12.5, 00:00:00, Serial0/1

               [110/65] via 192.168.12.1, 00:00:00, Serial0/0

 

r6#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 192.168.12.9 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O       192.168.12.4 [110/74] via 192.168.12.13, 00:08:01, Ethernet1/1

O       192.168.12.0 [110/74] via 192.168.12.13, 00:08:01, Ethernet1/1

C       192.168.12.12 is directly connected, Ethernet1/1

C       192.168.12.8 is directly connected, Serial0/2

O*IA 0.0.0.0/0 [110/65] via 192.168.12.9, 00:08:01, Serial0/2

 

 

任务6.测试网络连通性,观察路由表,观察内置表,观察邻居表,观察BORD-ROUTER【截图验证】

r6#p 192.168.1.14

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.14, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 76/109/136 ms

 

r6#p 192.168.1.6

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.6, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 64/89/148 ms

 

 

 

r5#ping 192.168.1.14

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.14, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 56/120/172 ms

r5#ping 192.168.1.6

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.6, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 60/119/152 ms

 

 

 

r1#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/192] via 10.1.1.1, 00:17:58, Serial0/3

O IA    192.168.12.0 [110/192] via 10.1.1.1, 00:18:07, Serial0/3

O IA    192.168.12.12 [110/202] via 10.1.1.1, 00:15:13, Serial0/3

O IA    192.168.12.8 [110/192] via 10.1.1.1, 00:17:58, Serial0/3

     10.0.0.0/24 is subnetted, 2 subnets

O       10.12.12.0 [110/128] via 10.1.1.1, 00:18:07, Serial0/3

C       10.1.1.0 is directly connected, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

O       192.168.1.12 [110/74] via 192.168.1.10, 01:32:41, Serial0/2

                     [110/74] via 192.168.1.6, 01:32:41, Serial0/1

                     [110/74] via 192.168.1.2, 01:32:41, Serial0/0

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

 

 

r2#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 192.168.1.5 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/256] via 192.168.1.5, 00:16:42, Serial0/1

                     [110/256] via 192.168.1.1, 00:16:42, Serial0/0

O IA    192.168.12.0 [110/256] via 192.168.1.5, 00:16:51, Serial0/1

                     [110/256] via 192.168.1.1, 00:16:51, Serial0/0

O IA    192.168.12.12 [110/266] via 192.168.1.5, 00:13:57, Serial0/1

                      [110/266] via 192.168.1.1, 00:13:57, Serial0/0

O IA    192.168.12.8 [110/256] via 192.168.1.5, 00:16:42, Serial0/1

                     [110/256] via 192.168.1.1, 00:16:42, Serial0/0

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.5, 01:31:26, Serial0/1

                   [110/192] via 192.168.1.1, 01:31:26, Serial0/0

O IA    10.1.1.0 [110/128] via 192.168.1.5, 01:31:26, Serial0/1

                 [110/128] via 192.168.1.1, 01:31:26, Serial0/0

     192.168.1.0/30 is subnetted, 4 subnets

O       192.168.1.8 [110/74] via 192.168.1.14, 01:31:29, Ethernet1/1

C       192.168.1.12 is directly connected, Ethernet1/1

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.5, 01:31:30, Serial0/1

             [110/65] via 192.168.1.1, 01:31:30, Serial0/0

 

 

 

r3#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 192.168.1.9 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/256] via 192.168.1.9, 00:16:53, Serial0/2

O IA    192.168.12.0 [110/256] via 192.168.1.9, 00:17:03, Serial0/2

O IA    192.168.12.12 [110/266] via 192.168.1.9, 00:14:09, Serial0/2

O IA    192.168.12.8 [110/256] via 192.168.1.9, 00:16:53, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.9, 01:31:31, Serial0/2

O IA    10.1.1.0 [110/128] via 192.168.1.9, 01:31:31, Serial0/2

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

C       192.168.1.12 is directly connected, Ethernet1/1

O       192.168.1.0 [110/74] via 192.168.1.13, 01:31:31, Ethernet1/1

O       192.168.1.4 [110/74] via 192.168.1.13, 01:31:31, Ethernet1/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.9, 01:31:32, Serial0/2

 

 

 

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

 

     192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

O       192.168.12.12 [110/74] via 192.168.12.10, 00:13:51, Serial0/2

                      [110/74] via 192.168.12.6, 00:13:51, Serial0/1

                      [110/74] via 192.168.12.2, 00:13:51, Serial0/0

C       192.168.12.8 is directly connected, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.12.12.0 is directly connected, Serial0/3

O       10.1.1.0 [110/128] via 10.12.12.1, 00:15:00, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/192] via 10.12.12.1, 00:13:51, Serial0/3

O IA    192.168.1.12 [110/202] via 10.12.12.1, 00:13:51, Serial0/3

O IA    192.168.1.0 [110/192] via 10.12.12.1, 00:13:51, Serial0/3

O IA    192.168.1.4 [110/192] via 10.12.12.1, 00:13:51, Serial0/3

 

 

r5#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 192.168.12.5 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

C       192.168.12.12 is directly connected, Ethernet1/1

O       192.168.12.8 [110/74] via 192.168.12.14, 00:14:09, Ethernet1/1

O*IA 0.0.0.0/0 [110/65] via 192.168.12.5, 00:14:09, Serial0/1

                         [110/65] via 192.168.12.1, 00:14:09, Serial0/0

 

 

 

r6#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 192.168.12.9 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O       192.168.12.4 [110/74] via 192.168.12.13, 00:14:17, Ethernet1/1

O       192.168.12.0 [110/74] via 192.168.12.13, 00:14:17, Ethernet1/1

C       192.168.12.12 is directly connected, Ethernet1/1

C       192.168.12.8 is directly connected, Serial0/2

O*IA 0.0.0.0/0 [110/65] via 192.168.12.9, 00:14:17, Serial0/2

 

 

 

 

r7#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/128] via 10.12.12.2, 00:17:43, Serial0/2

O IA    192.168.12.0 [110/128] via 10.12.12.2, 00:17:53, Serial0/2

O IA    192.168.12.12 [110/138] via 10.12.12.2, 00:14:59, Serial0/2

O IA    192.168.12.8 [110/128] via 10.12.12.2, 00:17:43, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.12.12.0 is directly connected, Serial0/2

C       10.1.1.0 is directly connected, Serial0/1

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/128] via 10.1.1.2, 00:17:53, Serial0/1

O IA    192.168.1.12 [110/138] via 10.1.1.2, 00:17:53, Serial0/1

O IA    192.168.1.0 [110/128] via 10.1.1.2, 00:17:53, Serial0/1

O IA    192.168.1.4 [110/128] via 10.1.1.2, 00:17:53, Serial0/1

 

 

r1#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

7.7.7.7           0   FULL/  -        00:00:33    10.1.1.1        Serial0/3

3.3.3.3           0   FULL/  -        00:00:34    192.168.1.10    Serial0/2

2.2.2.2           0   FULL/  -        00:00:34    192.168.1.6     Serial0/1

2.2.2.2           0   FULL/  -        00:00:34    192.168.1.2     Serial0/0

 

r2#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

3.3.3.3           1   FULL/DR         00:00:36    192.168.1.14    Ethernet1/1

1.1.1.1           0   FULL/  -        00:00:35    192.168.1.5     Serial0/1

1.1.1.1           0   FULL/  -        00:00:35    192.168.1.1     Serial0/0

 

 

r3#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

2.2.2.2           1   FULL/BDR        00:00:36    192.168.1.13    Ethernet1/1

1.1.1.1           0   FULL/  -        00:00:35    192.168.1.9     Serial0/2

 

r4#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

7.7.7.7           0   FULL/  -        00:00:32    10.12.12.1      Serial0/3

6.6.6.6           0   FULL/  -        00:00:37    192.168.12.10   Serial0/2

5.5.5.5           0   FULL/  -        00:00:39    192.168.12.6    Serial0/1

5.5.5.5           0   FULL/  -        00:00:39    192.168.12.2    Serial0/0

 

r5#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

6.6.6.6           1   FULL/DR         00:00:36    192.168.12.14   Ethernet1/1

4.4.4.4           0   FULL/  -        00:00:31    192.168.12.5    Serial0/1

4.4.4.4           0   FULL/  -        00:00:34    192.168.12.1    Serial0/0

 

 

r6#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

5.5.5.5           1   FULL/BDR        00:00:31    192.168.12.13   Ethernet1/1

4.4.4.4           0   FULL/  -        00:00:31    192.168.12.9    Serial0/2

 

r7#show ip ospf neighbor

 

Neighbor ID     Pri   State           Dead Time   Address         Interface

4.4.4.4           0   FULL/  -        00:00:33    10.12.12.2      Serial0/2

1.1.1.1           0   FULL/  -        00:00:37    10.1.1.2        Serial0/1

 

 

 

任务7.修改AREA 12的完全末节区域为标准区域,配置环回接口。

 

r4(config)#router ospf 10

r4(config-router)#no area 12 stub no-summary

r4(config-router)#no area 12 stub

r4(config-router)#end

 

r5(config)#router ospf 10

r5(config-router)#no area 12 stub

r5(config-router)#end

 

r6(config)#router ospf 10

r6(config-router)#no area 12 stub

r6(config-router)#end

r6(config)#int lo0

r6(config-if)#ip add 172.16.12.1 255.255.255.252

r6(config-if)#no shut

r6(config-if)#end

 

 

任务8.发布OSPF AS外部直连环回接口OSPF  AS中,并配置ROUTER 6的缺省路由,并测试ROUTER 7ROUTER 6的环回连通性【截图验证】

 

 

r6(config)#router ospf 10

r6(config-router)#redistribute connected subnets

r6(config-router)#end

 

r5#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

 

     192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

C       192.168.12.12 is directly connected, Ethernet1/1

O       192.168.12.8 [110/74] via 192.168.12.14, 00:00:06, Ethernet1/1

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 192.168.12.14, 00:00:06, Ethernet1/1

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/128] via 192.168.12.5, 00:00:06, Serial0/1

                   [110/128] via 192.168.12.1, 00:00:06, Serial0/0

O IA    10.1.1.0 [110/192] via 192.168.12.5, 00:00:06, Serial0/1

                 [110/192] via 192.168.12.1, 00:00:06, Serial0/0

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/256] via 192.168.12.5, 00:12:15, Serial0/1

                    [110/256] via 192.168.12.1, 00:12:15, Serial0/0

O IA    192.168.1.12 [110/266] via 192.168.12.5, 00:12:16, Serial0/1

                     [110/266] via 192.168.12.1, 00:12:16, Serial0/0

O IA    192.168.1.0 [110/256] via 192.168.12.5, 00:12:16, Serial0/1

                    [110/256] via 192.168.12.1, 00:12:16, Serial0/0

O IA    192.168.1.4 [110/256] via 192.168.12.5, 00:12:20, Serial0/1

                    [110/256] via 192.168.12.1, 00:12:20, Serial0/0

 

 

 

 

r7#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/128] via 10.12.12.2, 00:40:46, Serial0/2

O IA    192.168.12.0 [110/128] via 10.12.12.2, 00:40:46, Serial0/2

O IA    192.168.12.12 [110/138] via 10.12.12.2, 00:26:56, Serial0/2

O IA    192.168.12.8 [110/128] via 10.12.12.2, 00:40:46, Serial0/2

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 10.12.12.2, 00:12:04, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.12.12.0 is directly connected, Serial0/2

C       10.1.1.0 is directly connected, Serial0/1

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/128] via 10.1.1.2, 00:40:46, Serial0/1

O IA    192.168.1.12 [110/138] via 10.1.1.2, 00:40:46, Serial0/1

O IA    192.168.1.0 [110/128] via 10.1.1.2, 00:40:47, Serial0/1

O IA    192.168.1.4 [110/128] via 10.1.1.2, 00:40:47, Serial0/1

 

 

r7#ping 172.16.12.1

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.12.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 52/87/116 ms

 

 

 

r1#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/192] via 10.1.1.1, 00:44:34, Serial0/3

O IA    192.168.12.0 [110/192] via 10.1.1.1, 00:44:34, Serial0/3

O IA    192.168.12.12 [110/202] via 10.1.1.1, 00:30:54, Serial0/3

O IA    192.168.12.8 [110/192] via 10.1.1.1, 00:44:34, Serial0/3

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 10.1.1.1, 00:16:02, Serial0/3

     10.0.0.0/24 is subnetted, 2 subnets

O       10.12.12.0 [110/128] via 10.1.1.1, 00:44:49, Serial0/3

C       10.1.1.0 is directly connected, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

O       192.168.1.12 [110/74] via 192.168.1.10, 00:44:34, Serial0/2

                     [110/74] via 192.168.1.6, 00:44:34, Serial0/1

                     [110/74] via 192.168.1.2, 00:44:34, Serial0/0

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

 

 

 

 

任务9.观察路由表,观察BORD-ROUTER【截图验证】。

r1#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/192] via 10.1.1.1, 00:49:18, Serial0/3

O IA    192.168.12.0 [110/192] via 10.1.1.1, 00:49:18, Serial0/3

O IA    192.168.12.12 [110/202] via 10.1.1.1, 00:35:39, Serial0/3

O IA    192.168.12.8 [110/192] via 10.1.1.1, 00:49:18, Serial0/3

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 10.1.1.1, 00:20:47, Serial0/3

     10.0.0.0/24 is subnetted, 2 subnets

O       10.12.12.0 [110/128] via 10.1.1.1, 00:49:34, Serial0/3

C       10.1.1.0 is directly connected, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

O       192.168.1.12 [110/74] via 192.168.1.10, 00:49:18, Serial0/2

                     [110/74] via 192.168.1.6, 00:49:18, Serial0/1

                     [110/74] via 192.168.1.2, 00:49:19, Serial0/0

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

 

 

r1#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 4.4.4.4 [128] via 10.1.1.1, Serial0/3, ABR, Area 0, SPF 6

I 6.6.6.6 [192] via 10.1.1.1, Serial0/3, ASBR, Area 0, SPF 6

 

 

 

 

r2#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 192.168.1.5 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/256] via 192.168.1.5, 00:49:44, Serial0/1

                     [110/256] via 192.168.1.1, 00:49:44, Serial0/0

O IA    192.168.12.0 [110/256] via 192.168.1.5, 00:49:44, Serial0/1

                     [110/256] via 192.168.1.1, 00:49:44, Serial0/0

O IA    192.168.12.12 [110/266] via 192.168.1.5, 00:35:59, Serial0/1

                      [110/266] via 192.168.1.1, 00:35:59, Serial0/0

O IA    192.168.12.8 [110/256] via 192.168.1.5, 00:49:44, Serial0/1

                     [110/256] via 192.168.1.1, 00:49:44, Serial0/0

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.5, 00:49:44, Serial0/1

                   [110/192] via 192.168.1.1, 00:49:44, Serial0/0

O IA    10.1.1.0 [110/128] via 192.168.1.5, 00:49:44, Serial0/1

                 [110/128] via 192.168.1.1, 00:49:44, Serial0/0

     192.168.1.0/30 is subnetted, 4 subnets

O       192.168.1.8 [110/74] via 192.168.1.14, 00:49:45, Ethernet1/1

C       192.168.1.12 is directly connected, Ethernet1/1

C       192.168.1.0 is directly connected, Serial0/0

C       192.168.1.4 is directly connected, Serial0/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.5, 00:49:45, Serial0/1

               [110/65] via 192.168.1.1, 00:49:45, Serial0/0

 

r2#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 1.1.1.1 [64] via 192.168.1.5, Serial0/1, ABR, Area 1, SPF 7

i 1.1.1.1 [64] via 192.168.1.1, Serial0/0, ABR, Area 1, SPF 7

 

 

 

r3#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 192.168.1.9 to network 0.0.0.0

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/256] via 192.168.1.9, 00:49:57, Serial0/2

O IA    192.168.12.0 [110/256] via 192.168.1.9, 00:49:57, Serial0/2

O IA    192.168.12.12 [110/266] via 192.168.1.9, 00:36:13, Serial0/2

O IA    192.168.12.8 [110/256] via 192.168.1.9, 00:49:57, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/192] via 192.168.1.9, 00:49:57, Serial0/2

O IA    10.1.1.0 [110/128] via 192.168.1.9, 00:49:57, Serial0/2

     192.168.1.0/30 is subnetted, 4 subnets

C       192.168.1.8 is directly connected, Serial0/2

C       192.168.1.12 is directly connected, Ethernet1/1

O       192.168.1.0 [110/74] via 192.168.1.13, 00:49:58, Ethernet1/1

O       192.168.1.4 [110/74] via 192.168.1.13, 00:49:57, Ethernet1/1

O*IA 0.0.0.0/0 [110/65] via 192.168.1.9, 00:49:58, Serial0/2

 

 

r3#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 1.1.1.1 [64] via 192.168.1.9, Serial0/2, ABR, Area 1, SPF 5

 

 

 

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

      192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

O       192.168.12.12 [110/74] via 192.168.12.10, 00:21:40, Serial0/2

                      [110/74] via 192.168.12.6, 00:21:40, Serial0/1

                      [110/74] via 192.168.12.2, 00:21:40, Serial0/0

C       192.168.12.8 is directly connected, Serial0/2

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 192.168.12.10, 00:21:40, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.12.12.0 is directly connected, Serial0/3

O       10.1.1.0 [110/128] via 10.12.12.1, 00:36:59, Serial0/3

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/192] via 10.12.12.1, 00:21:41, Serial0/3

O IA    192.168.1.12 [110/202] via 10.12.12.1, 00:21:41, Serial0/3

O IA    192.168.1.0 [110/192] via 10.12.12.1, 00:21:41, Serial0/3

O IA    192.168.1.4 [110/192] via 10.12.12.1, 00:21:41, Serial0/3

 

r4#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 1.1.1.1 [128] via 10.12.12.1, Serial0/3, ABR, Area 0, SPF 7

i 6.6.6.6 [64] via 192.168.12.10, Serial0/2, ASBR, Area 12, SPF 12

 

 

r5#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

 

     192.168.12.0/30 is subnetted, 4 subnets

C       192.168.12.4 is directly connected, Serial0/1

C       192.168.12.0 is directly connected, Serial0/0

C       192.168.12.12 is directly connected, Ethernet1/1

O       192.168.12.8 [110/74] via 192.168.12.14, 00:21:54, Ethernet1/1

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 192.168.12.14, 00:21:54, Ethernet1/1

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/128] via 192.168.12.5, 00:21:54, Serial0/1

                   [110/128] via 192.168.12.1, 00:21:54, Serial0/0

O IA    10.1.1.0 [110/192] via 192.168.12.5, 00:21:54, Serial0/1

                 [110/192] via 192.168.12.1, 00:21:54, Serial0/0

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/256] via 192.168.12.5, 00:21:54, Serial0/1

                    [110/256] via 192.168.12.1, 00:21:54, Serial0/0

O IA    192.168.1.12 [110/266] via 192.168.12.5, 00:21:55, Serial0/1

                     [110/266] via 192.168.12.1, 00:21:55, Serial0/0

O IA    192.168.1.0 [110/256] via 192.168.12.5, 00:21:55, Serial0/1

                    [110/256] via 192.168.12.1, 00:21:55, Serial0/0

O IA    192.168.1.4 [110/256] via 192.168.12.5, 00:21:56, Serial0/1

                    [110/256] via 192.168.12.1, 00:21:56, Serial0/0

 

r5#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 4.4.4.4 [64] via 192.168.12.5, Serial0/1, ABR, Area 12, SPF 10

i 4.4.4.4 [64] via 192.168.12.1, Serial0/0, ABR, Area 12, SPF 10

i 6.6.6.6 [10] via 192.168.12.14, Ethernet1/1, ASBR, Area 12, SPF 10

 

 

 

r6#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O       192.168.12.4 [110/74] via 192.168.12.13, 00:22:09, Ethernet1/1

O       192.168.12.0 [110/74] via 192.168.12.13, 00:22:09, Ethernet1/1

C       192.168.12.12 is directly connected, Ethernet1/1

C       192.168.12.8 is directly connected, Serial0/2

     172.16.0.0/30 is subnetted, 1 subnets

C       172.16.12.0 is directly connected, Loopback0

     10.0.0.0/24 is subnetted, 2 subnets

O IA    10.12.12.0 [110/128] via 192.168.12.9, 00:22:09, Serial0/2

O IA    10.1.1.0 [110/192] via 192.168.12.9, 00:22:09, Serial0/2

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/256] via 192.168.12.9, 00:22:09, Serial0/2

O IA    192.168.1.12 [110/266] via 192.168.12.9, 00:22:09, Serial0/2

O IA    192.168.1.0 [110/256] via 192.168.12.9, 00:22:10, Serial0/2

O IA    192.168.1.4 [110/256] via 192.168.12.9, 00:22:10, Serial0/2

 

 

r6#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 4.4.4.4 [64] via 192.168.12.9, Serial0/2, ABR, Area 12, SPF 8

 

 

r7#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

 

     192.168.12.0/30 is subnetted, 4 subnets

O IA    192.168.12.4 [110/128] via 10.12.12.2, 00:50:58, Serial0/2

O IA    192.168.12.0 [110/128] via 10.12.12.2, 00:50:58, Serial0/2

O IA    192.168.12.12 [110/138] via 10.12.12.2, 00:37:08, Serial0/2

O IA    192.168.12.8 [110/128] via 10.12.12.2, 00:50:58, Serial0/2

     172.16.0.0/30 is subnetted, 1 subnets

O E2    172.16.12.0 [110/20] via 10.12.12.2, 00:22:16, Serial0/2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.12.12.0 is directly connected, Serial0/2

C       10.1.1.0 is directly connected, Serial0/1

     192.168.1.0/30 is subnetted, 4 subnets

O IA    192.168.1.8 [110/128] via 10.1.1.2, 00:50:58, Serial0/1

O IA    192.168.1.12 [110/138] via 10.1.1.2, 00:50:58, Serial0/1

O IA    192.168.1.0 [110/128] via 10.1.1.2, 00:50:58, Serial0/1

O IA    192.168.1.4 [110/128] via 10.1.1.2, 00:50:59, Serial0/1

 

 

r7#show ip ospf border-routers

 

OSPF Process 10 internal Routing Table

 

Codes: i - Intra-area route, I - Inter-area route

 

i 4.4.4.4 [64] via 10.12.12.2, Serial0/2, ABR, Area 0, SPF 2

i 1.1.1.1 [64] via 10.1.1.2, Serial0/1, ABR, Area 0, SPF 2

I 6.6.6.6 [128] via 10.12.12.2, Serial0/2, ASBR, Area 0, SPF 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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