OSPF 单域 配置
1.实验拓扑
2实验目的：2.1 按照拓扑正确连接3台路由器
2.2 按要求完成各接口的 IP 地址
2.3 完成OSPF单域路由协议的配置，并验证，完成OSPF计数器的配置
3.配置操作步骤：
Step 1. 配置路由器A ，B，C 相应接口的 IP 地址
路由器A配置如下：
Router>
Router>en
Router#conf t
Router(config)#HO A
A(config)#int f0/0
A(config-if)#ip add 192.168.1.1 255.255.255.0
A(config-if)#no shut
A(config-if)#exit
A(config)#int lo0
A(config-if)#ip add 192.168.31.11 255.255.255.255
A(config-if)#no shut
A(config-if)#exit
路由器B配置如下：
Router(config)#HO B
B(config)#int f0/0
B(config-if)#ip add 192.168.1.2 255.255.255.0
B(config-if)#no shut
B(config-if)#exit
B(config)#int lo0
B(config-if)#ip add 192.168.31.22 255.255.255.255
B(config-if)#no shut
B(config-if)#exit
路由器C配置如下：
Router>
Router>en
Router#conf t
Router(config)#ho C
C(config)#int f0/0
C(config-if)#ip add 192.168.1.3 255.255.255.0
C(config-if)#no shut
C(config-if)#exit
C(config)#int lo0
C(config-if)#ip add 192.168.31.33 255.255.255.255
C(config-if)#no shut
C(config-if)#exit
交换机SW配置如下：
Router#conf t
Router(config)#ho SW
SW(config)#int range f0/0 - 15
SW(config-if-range)#no shut
SW(config-if-range)#exit
SW(config)#
Setp 2. 配置OSPF
路由器A配置如下：
A(config)#router ospf 6
A(config-router)#net 192.168.1.0 0.0.0 .255 area 0
A(config-router)#net 192.168.31.11 0.0.0 .0 area 0
A(config-router)#exit
A(config)#
路由器C配置如下：
C(config)#router ospf 8
C(config-router)#net 192.168.1.0 0.0.0 .255 area 0
C(config-router)#net 192.168.31.33 0.0.0 .0 area 0
C(config-router)#exit
C(config)#
路由器B配置如下：
B(config)#router ospf 7
B(config-router)#net 192.168.1.0 0.0.0 .255 area 0
B(config-router)#net 192.168.31.22 0.0.0 .0 area 0
B(config-router)#exit
查看路由器A的路由表
A#show ip rou
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF , IA
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
192.168.31.0/32 is subnetted, 3 subnets
O 192.168.31.33 [110/2] via 192.168.1.3, 00:00:23, FastEthernet0/0
O 192.168.31.22 [110/2] via 192.168.1.2, 00:00:23, FastEthernet0/0
C 192.168.31.11 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
A#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 6, Router ID 192.168.31.11, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DROTHER, Priority 1
Designated Router (ID) 192.168.31.22, Interface address 192.168.1.2
Backup Designated router (ID) 192.168.31.33, Interface address 192.168.1.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:02
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.22 (Designated Router)
Adjacent with neighbor 192.168.31.33 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
查看邻接关系表
A#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
192.168.31.22 1 FULL/DR 00:00:33 192.168.1.2 FastEthernet0/
0
192.168.31.33 1 FULL/BDR 00:00:31 192.168.1.3 FastEthernet0/
0
查看链路状态数据库
A#show ip ospf database
OSPF Router with ID (192.168.31.11) (Process ID 6)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
192.168.31.11 192.168.31.11 245 0x80000003 0x00ECA0 2
192.168.31.22 192.168.31.22 316 0x80000003 0x00C 4A 6 2
192.168.31.33 192.168.31.33 199 0x80000003 0x009CAC 2
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.1.2 192.168.31.22 504 0x80000002 0x0084C 9
查看路由器B的路由表
B#show ip rou
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF , IA
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
192.168.31.0/32 is subnetted, 3 subnets
O 192.168.31.33 [110/2] via 192.168.1.3, 00:00:29, FastEthernet0/0
C 192.168.31.22 is directly connected, Loopback0
O 192.168.31.11 [110/2] via 192.168.1.1, 00:00:29, FastEthernet0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
查看接口F0/0的接口数据结构：
B#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.2/24, Area 0
Process ID 7, Router ID 192.168.31.22, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR
Designated Router (ID) 192.168.31.22, Interface address 192.168.1.2
Backup Designated router (ID) 192.168.31.33, Interface address 192.168.1.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:08
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.11
Adjacent with neighbor 192.168.31.33 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
查看链路状态数据库
B#show ip ospf database
OSPF Router with ID (192.168.31.22) (Process ID 7)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
192.168.31.11 192.168.31.11 259 0x80000003 0x00ECA0 2
192.168.31.22 192.168.31.22 328 0x80000003 0x00C 4A 6 2
192.168.31.33 192.168.31.33 212 0x80000003 0x009CAC 2
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.1.2 192.168.31.22 516 0x80000002 0x0084C 9
查看路由器C的路由表
C#show ip rou
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF , IA
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
192.168.31.0/32 is subnetted, 3 subnets
C 192.168.31.33 is directly connected, Loopback0
O 192.168.31.22 [110/2] via 192.168.1.2, 00:00:17, FastEthernet0/0
O 192.168.31.11 [110/2] via 192.168.1.1, 00:00:17, FastEthernet0/0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
查看接口F0/0的接口数据结构：
C#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.3/24, Area 0
Process ID 8, Router ID 192.168.31.33, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 192.168.31.22, Interface address 192.168.1.2
Backup Designated router (ID) 192.168.31.33, Interface address 192.168.1.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:06
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.11
Adjacent with neighbor 192.168.31.22 (Designated Router)
Suppress hello for 0 neighbor(s)
查看链路状态数据库
C#show ip ospf database
OSPF Router with ID (192.168.31.33) (Process ID 8)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
192.168.31.11 192.168.31.11 277 0x80000003 0x00ECA0 2
192.168.31.22 192.168.31.22 347 0x80000003 0x00C 4A 6 2
192.168.31.33 192.168.31.33 229 0x80000003 0x009CAC 2
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.1.2 192.168.31.22 535 0x80000002 0x0084C 9
Step 3. 更新计数器
路由器A配置如下：
A(config)#int f0/0
A(config-if)#ip ospf hello-interval 5
A(config-if)#ip ospf dead-interval 20
A(config-if)#end
路由器B配置如下：
B#conf t
B(config)#int f0/0
B(config-if)#ip ospf hello-interval 5
B(config-if)#ip ospf dead-interval 20
B(config-if)#end
路由器C配置如下：
C#config t
C(config)#int f0/0
C(config-if)#ip ospf hello-interval 5
C(config-if)#ip ospf dead-interval 20
C(config-if)#end
查看接口F0/0的接口数据结构：
A#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 6, Router ID 192.168.31.11, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DROTHER, Priority 1
Designated Router (ID) 192.168.31.33, Interface address 192.168.1.3
Backup Designated router (ID) 192.168.31.22, Interface address 192.168.1.2
Timer intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:01
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.22 (Backup Designated Router)
Adjacent with neighbor 192.168.31.33 (Designated Router)
Suppress hello for 0 neighbor(s)
查看接口F0/0的接口数据结构：
B#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.2/24, Area 0
Process ID 7, Router ID 192.168.31.22, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 192.168.31.33, Interface address 192.168.1.3
Backup Designated router (ID) 192.168.31.22, Interface address 192.168.1.2
Flush timer for old DR LSA due in 00:02:02
Timer intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:01
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 4 msec, maximum is 4 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.11
Adjacent with neighbor 192.168.31.33 (Designated Router)
Suppress hello for 0 neighbor(s)
查看接口F0/0的接口数据结构：
C#show ip ospf int f0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.3/24, Area 0
Process ID 8, Router ID 192.168.31.33, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR
Designated Router (ID) 192.168.31.33, Interface address 192.168.1.3
Backup Designated router (ID) 192.168.31.22, Interface address 192.168.1.2
Timer intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.31.11
Adjacent with neighbor 192.168.31.22 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
