思科三路由器静态路由配置模型

1、Switch1的配置：

Switch>enable

Switch#configure terminal

Switch1(config)#hostname Switch1

Switch1(config)#interface Vlan100

Switch1(config-if)#ip address 192.168.10.2 255.255.255.0

Switch1(config-if)#exit

Switch1(config)#interface range FastEthernet0/1 - 24

Switch1(config-if-range)#switchport access vlan 100

Switch1(config)#exit

Switch1(config)#interface GigabitEthernet0/1

Switch1(config-if)#description UpLink_Router2911

Switch1(config-if)#switchport access vlan 100

Switch1(config)#exit

Switch1(config)#interface GigabitEthernet0/2

Switch1(config-if)#switchport access vlan 100

Switch1(config)#exit

Switch1(config)#ip default-gateway 192.168.10.1

Switch1(config)#exit

Switch1#write

Building configuration...

[OK]

2、Switch2的配置：

Switch>enable

Switch#configure terminal

Switch2(config)#hostname Switch2

Switch2(config)#interface Vlan200

Switch2(config-if)#ip address 192.168.20.2 255.255.255.0

Switch2(config-if)#exit

Switch2(config)#interface range FastEthernet0/1 - 24

Switch2(config-if-range)#switchport access vlan 200

Switch2(config)#exit

Switch2(config)#interface GigabitEthernet0/1

Switch2(config-if)#description UpLink_Router2911

Switch2(config-if)#switchport access vlan 200

Switch2(config)#exit

Switch2(config)#interface GigabitEthernet0/2

Switch2(config-if)#switchport access vlan 200

Switch2(config)#exit

Switch2(config)#ip default-gateway 192.168.20.1

Switch2(config)#exit

Switch2#write

Building configuration...

[OK]

3、Switch3的配置：

Switch>enable

Switch#configure terminal

Switch3(config)#hostname Switch3

Switch3(config)#interface Vlan300

Switch3(config-if)#ip address 192.168.30.2 255.255.255.0

Switch3(config-if)#exit

Switch3(config)#interface range FastEthernet0/1 - 24

Switch3(config-if-range)#switchport access vlan 300

Switch3(config)#exit

Switch3(config)#interface GigabitEthernet0/1

Switch3(config-if)#description UpLink_Router2911

Switch3(config-if)#switchport access vlan 300

Switch3(config)#exit

Switch3(config)#interface GigabitEthernet0/2

Switch3(config-if)#switchport access vlan 300

Switch3(config)#exit

Switch3(config)#ip default-gateway 192.168.30.1

Switch3(config)#exit

Switch3#write

Building configuration...

[OK]

4、Router1的配置：

Router>enable

Router#configure terminal

Router(config)#hostname Router1

Router1(config)#ip dhcp excluded-address 192.168.10.1 192.168.10.99

Router1(config)#ip dhcp pool For192.168.10.X

Router1(dhcp-config)#network 192.168.10.0 255.255.255.0

Router1(dhcp-config)#default-router 192.168.10.1

Router1(dhcp-config)#dns-server 192.168.10.1

Router1(dhcp-config)#exit

Router1(config)#interface Vlan100

Router1(config-if)#ip address 192.168.10.1 255.255.255.0

Router1(config-if)#exit

Router1(config)#interface GigabitEthernet0/0

Router1(config-if)#description To_Router3

Router1(config-if)#ip address 172.16.10.13 255.255.255.0

Router1(config-if)#no shutdown

Router1(config-if)#exit

Router1(config)#interface GigabitEthernet0/1

Router1(config-if)#description To_Router2

Router1(config-if)#ip address 172.16.20.12 255.255.255.0

Router1(config-if)#no shutdown

Router1(config-if)#exit

Router1(config)#

Router1(config)#interface FastEthernet0/0/0

Router1(config-if)#description To_Switch1

Router1(config-if)#switchport access vlan 100

Router1(config-if)#exit

Router1(config)#ip route 192.168.20.0 255.255.255.0 172.16.20.21

Router1(config)#ip route 192.168.30.0 255.255.255.0 172.16.10.31

Router1(config)#exit

Router1# write

Building configuration...

[OK]

5、Router2的配置：

Router>enable

Router#configure terminal

Router(config)#hostname Router2

Router2(config)#ip dhcp excluded-address 192.168.20.1 192.168.20.99

Router2(config)#ip dhcp pool For192.168.20.X

Router2(dhcp-config)#network 192.168.20.0 255.255.255.0

Router2(dhcp-config)#default-router 192.168.20.1

Router2(dhcp-config)#dns-server 192.168.20.1

Router2(dhcp-config)#exit

Router2(config)#interface Vlan200

Router2(config-if)#ip address 192.168.20.1 255.255.255.0

Router2(config-if)#exit

Router2(config)#interface GigabitEthernet0/1

Router2(config-if)#description To_Router1

Router2(config-if)#ip address 172.16.20.21 255.255.255.0

Router2(config-if)#no shutdown

Router2(config-if)#exit

Router2(config)#interface GigabitEthernet0/2

Router2(config-if)#description To_Router3

Router2(config-if)#ip address 172.16.30.23 255.255.255.0

Router2(config-if)#no shutdown

Router2(config-if)#exit

Router2(config)#

Router2(config)#interface FastEthernet0/0/0

Router2(config-if)#description To_Switch2

Router2(config-if)#switchport access vlan 200

Router2(config-if)#exit

Router2(config)#ip route 192.168.10.0 255.255.255.0 172.16.20.12

Router2(config)#ip route 192.168.30.0 255.255.255.0 172.16.30.32

Router2(config)#exit

Router2# write

Building configuration...

[OK]

6、Router3的配置：

Router>enable

Router#configure terminal

Router(config)#hostname Router3

Router3(config)#ip dhcp excluded-address 192.168.30.1 192.168.30.99

Router3(config)#ip dhcp pool For192.168.30.X

Router3(dhcp-config)#network 192.168.30.0 255.255.255.0

Router3(dhcp-config)#default-router 192.168.30.1

Router3(dhcp-config)#dns-server 192.168.30.1

Router3(dhcp-config)#exit

Router3(config)#interface Vlan300

Router3(config-if)#ip address 192.168.30.1 255.255.255.0

Router3(config-if)#exit

Router3(config)#interface GigabitEthernet0/0

Router3(config-if)#description To_Router1

Router3(config-if)#ip address 172.16.10.31 255.255.255.0

Router3(config-if)#no shutdown

Router3(config-if)#exit

Router3(config)#interface GigabitEthernet0/2

Router3(config-if)#description To_Router2

Router3(config-if)#ip address 172.16.30.32 255.255.255.0

Router3(config-if)#no shutdown

Router3(config-if)#exit

Router3(config)#

Router3(config)#interface FastEthernet0/0/0

Router3(config-if)#description To_Switch3

Router3(config-if)#switchport access vlan 300

Router3(config-if)#exit

Router3(config)#ip route 192.168.10.0 255.255.255.0 172.16.20.13

Router3(config)#ip route 192.168.20.0 255.255.255.0 172.16.30.23

Router3(config)#exit

Router3# write

Building configuration...

[OK]

1、此时，PC2获得IP：192.168.20.100，测试结果如下：

2、此时，PC3获得IP：192.168.30.100，测试结果如下：

1、此时，PC2获得IP：192.168.20.100，测试结果如下：

2、此时，PC3获得IP：192.168.30.100，测试结果如下：

1、配置静态路由表前，路由器Router1的路由表：

2、配置静态路由表后，路由器Router1的路由表：

3、通过比对，可以发现在配置静态路由表之后，在路由器上多出两条路由路径，而这两条路由路径的下一条指向，就是我们在路由器中的配置。