实验拓扑图：
6台路由器和1台交换机和3台PC机
R1的配置
R1#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int e0/0
R1(config-if)#ip address 192.168.2.1 255.255.255.0
R1(config-if)#no sh
R1(config-if)#int e0/1
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no sh
R1(config-if)#exit
R1(config)#router ospf 1
R1(config-router)#network 192.168.1.0 0.0.0.255 area 1
R1(config-router)#network 192.168.2.0 0.0.0.255 area 1
R1(config-router)#area 1 stub
R1(config-router)#exit
R1(config)#do sh 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 192.168.2.2 to network 0.0.0.0
C 192.168.1.0/24 is directly connected, Ethernet0/1
C 192.168.2.0/24 is directly connected, Ethernet0/0
O*IA 0.0.0.0/0 [110/11] via 192.168.2.2, 00:12:13, Ethernet0/0
R1(config)#do sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.2.1 YES manual up up
Ethernet0/1 192.168.1.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R1(config)#do sh route ospf
route-map ospf not found
R1(config)#do sh ip route ospf
O*IA 0.0.0.0/0 [110/11] via 192.168.2.2, 00:24:05, Ethernet0/0
R1(config)#do sh ip ospf
Routing Process "ospf 1" with ID 192.168.2.1
Start time: 00:17:56.480, Time elapsed: 00:27:19.416
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
Supports area transit capability
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs
Incremental-SPF disabled
Minimum LSA interval 5 secs
Minimum LSA arrival 1000 msecs
LSA group pacing timer 240 secs
Interface flood pacing timer 33 msecs
Retransmission pacing timer 66 msecs
Number of external LSA 0. Checksum Sum 0x000000
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 0 normal 1 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area 1
Number of interfaces in this area is 2
It is a stub area
Area has no authentication
SPF algorithm last executed 00:24:27.172 ago
SPF algorithm executed 4 times
Area ranges are
Number of LSA 4. Checksum Sum 0x02F8C7
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R1(config)#
R2的配置
R2#
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int e0/0
R2(config-if)#ip address 192.168.2.2 255.255.255.0
R2(config-if)#no sh
R2(config-if)#int e0/1
R2(config-if)#ip address 192.168.3.1 255.255.255.0
R2(config-if)#no sh
R2(config-if)#exit
R2(config)#router ospf 1
R2(config-router)#network 192.168.2.0 0.0.0.255 area 1
R2(config-router)#network 192.168.3.0 0.0.0.255 area 0
R2(config-router)#area 1 stub no-summary
R2(config-router)#exit
R2(config)#do sh 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
O E2 192.168.8.0/24 [110/20] via 192.168.3.2, 00:16:30, Ethernet0/1
O IA 192.168.4.0/24 [110/20] via 192.168.3.2, 00:25:41, Ethernet0/1
O IA 192.168.5.0/24 [110/30] via 192.168.3.2, 00:23:03, Ethernet0/1
O IA 192.168.6.0/24 [110/40] via 192.168.3.2, 00:17:20, Ethernet0/1
O E2 192.168.7.0/24 [110/20] via 192.168.3.2, 00:17:15, Ethernet0/1
O 192.168.1.0/24 [110/20] via 192.168.2.1, 00:27:48, Ethernet0/0
C 192.168.2.0/24 is directly connected, Ethernet0/0
C 192.168.3.0/24 is directly connected, Ethernet0/1
R2(config)#do sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.2.2 YES manual up up
Ethernet0/1 192.168.3.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R2(config)#do sh route os
route-map os not found
R2(config)#do sh route ospf
route-map ospf not found
R2(config)#do sh ip ospf
Routing Process "ospf 1" with ID 192.168.3.1
Start time: 00:19:34.552, Time elapsed: 00:52:54.572
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
Supports area transit capability
It is an area border router
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs
Incremental-SPF disabled
Minimum LSA interval 5 secs
Minimum LSA arrival 1000 msecs
LSA group pacing timer 240 secs
Interface flood pacing timer 33 msecs
Retransmission pacing timer 66 msecs
Number of external LSA 2. Checksum Sum 0x00653C
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 2. 1 normal 1 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area BACKBONE(0)
Number of interfaces in this area is 1
Area has no authentication
SPF algorithm last executed 00:49:34.768 ago
SPF algorithm executed 7 times
Area ranges are
Number of LSA 8. Checksum Sum 0x050BD9
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
Area 1
Number of interfaces in this area is 1
It is a stub area, no summary LSA in this area
generates stub default route with cost 1
Area has no authentication
SPF algorithm last executed 00:51:41.580 ago
SPF algorithm executed 5 times
Area ranges are
Number of LSA 4. Checksum Sum 0x02F0CB
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R2(config)#
R3的配置
R3#
R3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#int e0/0
R3(config-if)#ip address 192.168.3.2 255.255.255.0
R3(config-if)#no sh
R3(config-if)#int e0/1
R3(config-if)#ip address 192.168.4.1 255.255.255.0
R3(config-if)#no sh
R3(config-if)#exit
R3(config)#router ospf 1
R3(config-router)#network 192.168.3.0 0.0.0.255 area 0
R3(config-router)#network 192.168.4.0 0.0.0.255 area 2
R3(config-router)#area 2 nssa
R3(config-router)#exit
R3(config)#do sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.3.2 YES manual up up
Ethernet0/1 192.168.4.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R3(config)#do sh 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
O N2 192.168.8.0/24 [110/20] via 192.168.4.2, 00:43:11, Ethernet0/1
C 192.168.4.0/24 is directly connected, Ethernet0/1
O 192.168.5.0/24 [110/20] via 192.168.4.2, 00:44:02, Ethernet0/1
O 192.168.6.0/24 [110/30] via 192.168.4.2, 00:44:02, Ethernet0/1
O N2 192.168.7.0/24 [110/20] via 192.168.4.2, 00:44:02, Ethernet0/1
O IA 192.168.1.0/24 [110/30] via 192.168.3.1, 00:44:02, Ethernet0/0
O IA 192.168.2.0/24 [110/20] via 192.168.3.1, 00:44:02, Ethernet0/0
C 192.168.3.0/24 is directly connected, Ethernet0/0
R3(config)#exit
R3#sh ip ospf
Routing Process "ospf 1" with ID 192.168.4.1
Start time: 00:21:31.032, Time elapsed: 00:54:21.640
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
Supports area transit capability
It is an area border and autonomous system boundary router
Redistributing External Routes from,
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs
Incremental-SPF disabled
Minimum LSA interval 5 secs
Minimum LSA arrival 1000 msecs
LSA group pacing timer 240 secs
Interface flood pacing timer 33 msecs
Retransmission pacing timer 66 msecs
Number of external LSA 2. Checksum Sum 0x00653C
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 2. 1 normal 0 stub 1 nssa
Number of areas transit capable is 0
External flood list length 0
Area BACKBONE(0)
Number of interfaces in this area is 1
Area has no authentication
SPF algorithm last executed 00:52:58.224 ago
SPF algorithm executed 6 times
Area ranges are
Number of LSA 8. Checksum Sum 0x050BD9
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
Area 2
Number of interfaces in this area is 1
It is a NSSA area
Perform type-7/type-5 LSA translation
Area has no authentication
SPF algorithm last executed 00:44:38.796 ago
SPF algorithm executed 8 times
Area ranges are
Number of LSA 10. Checksum Sum 0x04C12C
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R3#sh ip route ospf
O N2 192.168.8.0/24 [110/20] via 192.168.4.2, 00:45:04, Ethernet0/1
O 192.168.5.0/24 [110/20] via 192.168.4.2, 00:45:54, Ethernet0/1
O 192.168.6.0/24 [110/30] via 192.168.4.2, 00:45:54, Ethernet0/1
O N2 192.168.7.0/24 [110/20] via 192.168.4.2, 00:45:54, Ethernet0/1
O IA 192.168.1.0/24 [110/30] via 192.168.3.1, 00:45:54, Ethernet0/0
O IA 192.168.2.0/24 [110/20] via 192.168.3.1, 00:45:54, Ethernet0/0
R3#
R4的配置
R4#
R4#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R4(config)#int e0/0
R4(config-if)#ip address 192.168.4.2 255.255.255.0
R4(config-if)#no sh
R4(config-if)#int e0/1
R4(config-if)#ip address 192.168.5.1 255.255.255.0
R4(config-if)#no sh
R4(config-if)#exit
R4(config)#router ospf 1
R4(config-router)#network 192.168.4.0 0.0.0.255 area 2
R4(config-router)#network 192.168.5.0 0.0.0.255 area 2
R4(config-router)#area 2 nssa
R4(config-router)#exit
R4(config)#int e0/1
R4(config-if)#ip address 192.168.7.1 255.255.255.0 secondary
R4(config-if)#exit
R4(config)#router rip
R4(config-router)#network 192.168.7.0
R4(config-router)#version 2
R4(config-router)#no auto-summary
R4(config-router)#exit
R4(config)#router ospf 1
R4(config-router)#redistribute rip subnets
R4(config-router)#router rip
R4(config-router)#redistribute ospf 1 metric 1
R4(config-router)#exit
R4#sh 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
R 192.168.8.0/24 [120/1] via 192.168.7.2, 00:00:12, Ethernet0/1
C 192.168.4.0/24 is directly connected, Ethernet0/0
C 192.168.5.0/24 is directly connected, Ethernet0/1
O 192.168.6.0/24 [110/20] via 192.168.5.2, 00:50:59, Ethernet0/1
C 192.168.7.0/24 is directly connected, Ethernet0/1
O IA 192.168.1.0/24 [110/40] via 192.168.4.1, 00:50:59, Ethernet0/0
O IA 192.168.2.0/24 [110/30] via 192.168.4.1, 00:50:59, Ethernet0/0
O IA 192.168.3.0/24 [110/20] via 192.168.4.1, 00:50:59, Ethernet0/0
R4#sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.4.2 YES manual up up
Ethernet0/1 192.168.5.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R4#sh ip ospf
Routing Process "ospf 1" with ID 192.168.5.1
Start time: 00:24:13.648, Time elapsed: 00:58:09.592
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
Supports area transit capability
It is an autonomous system boundary router
Redistributing External Routes from,
rip, includes subnets in redistribution
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs
Incremental-SPF disabled
Minimum LSA interval 5 secs
Minimum LSA arrival 1000 msecs
LSA group pacing timer 240 secs
Interface flood pacing timer 33 msecs
Retransmission pacing timer 66 msecs
Number of external LSA 0. Checksum Sum 0x000000
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 0 normal 0 stub 1 nssa
Number of areas transit capable is 0
External flood list length 0
Area 2
Number of interfaces in this area is 2
It is a NSSA area
Area has no authentication
SPF algorithm last executed 00:51:20.440 ago
SPF algorithm executed 6 times
Area ranges are
Number of LSA 10. Checksum Sum 0x04C12C
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R4#sh ip route ospf
O 192.168.6.0/24 [110/20] via 192.168.5.2, 00:51:27, Ethernet0/1
O IA 192.168.1.0/24 [110/40] via 192.168.4.1, 00:51:27, Ethernet0/0
O IA 192.168.2.0/24 [110/30] via 192.168.4.1, 00:51:27, Ethernet0/0
O IA 192.168.3.0/24 [110/20] via 192.168.4.1, 00:51:27, Ethernet0/0
R4#
R5的配置
R5#
R5#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R5(config)#int e0/0
R5(config-if)#ip address 192.168.5.2 255.255.255.0
R5(config-if)#no sh
R5(config-if)#int e0/1
R5(config-if)#ip address 192.168.6.1 255.255.255.0
R5(config-if)#no sh
R5(config-if)#exit
R5(config)#router ospf 1
R5(config-router)#network 192.168.5.0 0.0.0.255 area 2
R5(config-router)#network 192.168.6.0 0.0.0.255 area 2
R5(config-router)#area 2 nssa
R5(config-router)#exit
R5#sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.5.2 YES manual up up
Ethernet0/1 192.168.6.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R5#sh 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
O N2 192.168.8.0/24 [110/20] via 192.168.5.1, 00:54:20, Ethernet0/0
O 192.168.4.0/24 [110/20] via 192.168.5.1, 00:55:20, Ethernet0/0
C 192.168.5.0/24 is directly connected, Ethernet0/0
C 192.168.6.0/24 is directly connected, Ethernet0/1
O N2 192.168.7.0/24 [110/20] via 192.168.5.1, 00:55:20, Ethernet0/0
O IA 192.168.1.0/24 [110/50] via 192.168.5.1, 00:55:20, Ethernet0/0
O IA 192.168.2.0/24 [110/40] via 192.168.5.1, 00:55:20, Ethernet0/0
O IA 192.168.3.0/24 [110/30] via 192.168.5.1, 00:55:20, Ethernet0/0
R5#sh ip route ospf
O N2 192.168.8.0/24 [110/20] via 192.168.5.1, 00:54:27, Ethernet0/0
O 192.168.4.0/24 [110/20] via 192.168.5.1, 00:55:27, Ethernet0/0
O N2 192.168.7.0/24 [110/20] via 192.168.5.1, 00:55:27, Ethernet0/0
O IA 192.168.1.0/24 [110/50] via 192.168.5.1, 00:55:27, Ethernet0/0
O IA 192.168.2.0/24 [110/40] via 192.168.5.1, 00:55:27, Ethernet0/0
O IA 192.168.3.0/24 [110/30] via 192.168.5.1, 00:55:27, Ethernet0/0
R5#
R6的配置
R6#
R6#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R6(config)#int e0/0
R6(config-if)#ip address 192.168.7.2 255.255.255.0
R6(config-if)#no sh
R6(config-if)#int e0/1
R6(config-if)#ip address 192.168.8.1 255.255.255.0
R6(config-if)#no sh
R6(config-if)#exit
R6(config)#router rip
R6(config-router)#network 192.168.7.0
R6(config-router)#network 192.168.8.0
R6(config-router)#version 2
R6(config-router)#no auto-summary
R6(config-router)#redistribute ospf 1 metric 1
R6(config-router)#exit
R6#sh 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
C 192.168.8.0/24 is directly connected, Ethernet0/1
R 192.168.4.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
R 192.168.5.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
R 192.168.6.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
C 192.168.7.0/24 is directly connected, Ethernet0/0
R 192.168.1.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
R 192.168.2.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
R 192.168.3.0/24 [120/1] via 192.168.7.1, 00:00:01, Ethernet0/0
R6#sh ip int br
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.7.2 YES manual up up
Ethernet0/1 192.168.8.1 YES manual up up
Ethernet0/2 unassigned YES unset administratively down down
Ethernet0/3 unassigned YES unset administratively down down
R6#
SW1的配置
SW1#conf t
SW1(config)#int range f1/0 -2
SW1(config-if)#switchport mode trunk
SW1(config-if)#no sh
SW1#