ospf协议

使用ospf协议建立如下图的实例，实现两个主机之间互通。

 

 

Switch(config)#hostna S560
S560(config)#vlan 10
S560(config-vlan)#vlan 20
S560(config-vlan)#inter f0/10
S560(config-if)#sw mode acc
S560(config-if)#sw acc vlan 10
S560(config-if)#inter f0/1
S560(config-if)#sw mode acc
S560(config-if)#sw acc vlan 20
S560(config-if)#inter vlan 10
S560(config-if)#ip address 192.168.1.1 255.255.255.0
S560(config-if)#inter vlan 20
S560(config-if)#ip address 192.168.3.1 255.255.255.0
S560(config-if)#no shutdo
S560(config-if)#no shutdown
S560(config-if)#ip routing
S560(config)#router os
S560(config)#router ospf ?
<1-65535> Process ID
S560(config)#router ospf 1
S560(config-router)#netw
S560(config-router)#network 192.168.1.0 0.0.0.255?
A.B.C.D
S560(config-router)#network 192.168.1.0 0.0.0.255 ?
area Set the OSPF area ID
S560(config-router)#network 192.168.1.0 0.0.0.255 are
S560(config-router)#network 192.168.1.0 0.0.0.255 area ?
<0-4294967295> OSPF area ID as a decimal value
A.B.C.D OSPF area ID in IP address format
S560(config-router)#network 192.168.1.0 0.0.0.255 area 0
S560(config-router)#network 192.168.3.0 0.0.0.255 area 0
S560(config-router)#end

 

S560#

%SYS-5-CONFIG_I: Configured from console by console

 

S560#第一次查看

C 192.168.1.0/24 is directly connected, Vlan10

C 192.168.3.0/24 is directly connected, Vlan20

 

S560#show ip route完成一个路由器时第二次查看

C 192.168.1.0/24 is directly connected, Vlan10

C 192.168.3.0/24 is directly connected, Vlan20

O 192.168.4.0/24 [110/2] via 192.168.3.2, 00:00:53, Vlan20

S560#

路由器一

 

Router>ena
Router#confi
Router#configure ter
Router(config)#inter f0/1
Router(config-if)#no shutd
Router(config-if)#no shutdown
Router(config-if)#inter f0/0
Router(config-if)#no shutdown
 
Router(config)#inter f0/0
Router(config-if)#ip ad
Router(config-if)#ip address 192.168.3.2 255.255.255.0
Router(config-if)#ex
Router(config)#inter f0/1
Router(config-if)#ip address 192.168.4.1 255.255.255.0
Router(config-if)#ip routing
Router(config)#router ospf 1
Router(config-router)#network 192.168.4.0 0.0.0.255 area 0
Router(config-router)#network 192.168.3.0 0.0.0.255 area 0
 
Router#show ip route【当前配置生效后查看】
O    192.168.1.0/24 [110/2] via 192.168.3.1, 00:00:13, FastEthernet0/0
C    192.168.3.0/24 is directly connected, FastEthernet0/0
C    192.168.4.0/24 is directly connected, FastEthernet0/1

 

路由器二：

Router#config ter
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#inter f0/1
Router(config-if)#no shu
 
Router(config-if)#inter f0/0
Router(config-if)#no shut
 
Router(config-if)#inter f0/1
Router(config-if)#no shutdown
 
Router>ena
Router#conf ter
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#inter f0/0
Router(config-if)#ip add
Router(config-if)#ip address 192.168.4.2 255.255.255.0
Router(config-if)#ex
Router(config)#inter f0/1
Router(config-if)#ip add
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#ip routing
Router(config)#router os
Router(config)#router ospf 1
Router(config-router)#network 192.168.4.0 0.0.0.255 area 0
Router(config-router)#network 192.168.2.0 0.0.0.255 area 0
Router(config-router)#end
 
Router#show ip route
O 192.168.1.0/24 [110/3] via 192.168.4.1, 00:00:32, FastEthernet0/0
C 192.168.2.0/24 is directly connected, FastEthernet0/1
O 192.168.3.0/24 [110/2] via 192.168.4.1, 00:00:32, FastEthernet0/0
C 192.168.4.0/24 is directly connected, FastEthernet0/0
Router#%IP-4-DUPADDR: Duplicate address 192.168.2.1 on FastEthernet0/1, sourced by 00D0.D33E.71B4