网上类似的实验多如牛毛,我写这个目的是为了巩固一下,其实好早好早之前就想学ospf,但是我实在太懒散了,不晓得现在还来不来得及。
废话到此为止,开工
拓扑如下:
目的,通过OSPF,将如上各个路由器全部打通
R1配置:
R1#conf t
R1(config)#interface loopback 0
R1(config-if)#ip address 1.1.1.1 255.255.255.255
R1(config-if)#exit
R1(config)#interface fastEthernet 0/0
R1(config-if)#no shut
R1(config-if)#ip addr 192.168.100.1 255.255.255.0
R1(config-if)#exit
R1(config)#interface serial 1/0
R1(config-if)#ip add 172.100.100.2 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#router ospf 1
R1(config-router)#router-id 1.1.1.1
R1(config-router)#network 1.1.1.1 0.0.0.0 area 0
R1(config-router)#network 192.168.100.0 0.0.0.255 area 0
R1(config-router)#network 172.100.100.0 0.0.0.255 area 0
R1(config)#
R2配置
conf t
interface loopback 0
ip address 2.2.2.2 255.255.255.255
exit
interface fastEthernet 0/0
no shut
ip addr 192.168.100.2 255.255.255.0
exit
router ospf 1
router-id 2.2.2.2
network 2.2.2.2 0.0.0.0 area 0
network 192.168.100.0 0.0.0.255 area 0
R3配置
conf t
interface loopback 0
ip address 3.3.3.3 255.255.255.255
exit
interface fastEthernet 0/0
no shut
ip addr 192.168.100.3 255.255.255.0
exit
router ospf 1
router-id 3.3.3.3
network 3.3.3.3 0.0.0.0 area 0
network 192.168.100.0 0.0.0.255 area 0
R4配置
conf t
interface loopback 0
ip address 4.4.4.4 255.255.255.255
exit
interface fastEthernet 0/0
no shut
ip addr 192.168.100.4 255.255.255.0
exit
router ospf 1
router-id 4.4.4.4
network 4.4.4.4 0.0.0.0 area 0
network 192.168.100.0 0.0.0.255 area 0
R5配置
conf t
interface loopback 0
ip address 5.5.5.5 255.255.255.255
exit
interface serial 1/0
ip add 172.100.100.1 255.255.255.0
no shut
exit
router ospf 1
router-id 5.5.5.5
network 5.5.5.5 0.0.0.0 area 0
network 172.100.100.0 0.0.0.255 area 0
查看邻居
R1# show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
5.5.5.5 0 FULL/ - 00:00:39 172.100.100.1 Serial1/0
2.2.2.2 1 FULL/BDR 00:00:38 192.168.100.2 FastEthernet0/0
3.3.3.3 1 FULL/DROTHER 00:00:38 192.168.100.3 FastEthernet0/0
4.4.4.4 1 FULL/DROTHER 00:00:38 192.168.100.4 FastEthernet0/0
R1#
查看OSPF数据库
R4#show ip ospf database
OSPF Router with ID (4.4.4.4) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 229 0x80000006 0x00468D 4
2.2.2.2 2.2.2.2 610 0x80000003 0x000366 2
3.3.3.3 3.3.3.3 511 0x80000003 0x001745 2
4.4.4.4 4.4.4.4 424 0x80000003 0x002B24 2
5.5.5.5 5.5.5.5 233 0x80000003 0x005D08 3
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
192.168.100.1 1.1.1.1 424 0x80000003 0x00181D
R4#
查看路由表,前面有标识C的,表示直连路由,有标识O的表示通过OSPF学习到的路由
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
1.0.0.0/32 is subnetted, 1 subnets
O 1.1.1.1 [110/2] via 192.168.100.1, 00:04:23, FastEthernet0/0
2.0.0.0/32 is subnetted, 1 subnets
O 2.2.2.2 [110/2] via 192.168.100.2, 00:04:23, FastEthernet0/0
3.0.0.0/32 is subnetted, 1 subnets
O 3.3.3.3 [110/2] via 192.168.100.3, 00:04:23, FastEthernet0/0
4.0.0.0/32 is subnetted, 1 subnets
C 4.4.4.4 is directly connected, Loopback0
5.0.0.0/32 is subnetted, 1 subnets
O 5.5.5.5 [110/66] via 192.168.100.1, 00:04:24, FastEthernet0/0
172.100.0.0/24 is subnetted, 1 subnets
O 172.100.100.0 [110/65] via 192.168.100.1, 00:04:24, FastEthernet0/0
C 192.168.100.0/24 is directly connected, FastEthernet0/0
R4#
ping 测试,任何一个节点上ping环回地址,192.168.100.0/24地址,172.100.100.0/24的地址均可达
R4#ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/32/52 ms
R4#ping 192.168.100.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.100.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/34/44 ms
R4#ping 172.100.100.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.100.100.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/15/36 ms
R4#