Configure static routing experiment
Purpose
- Master the configuration method of static routing.
- Understand the meaning and characteristics of static routing.
Experimental software
Cisco Packet Tracer
Experimental requirements
Use static routing to implement communication between different subnets.
experimental knowledge
Key commands for this experiment:
| model | Order | Function |
|---|---|---|
| Router(config-if)# | ip address ip-add subnet-mask | Configure an interface ip |
| Router(config-if)# | no ip address | Delete an interface ip |
| (config)# | ip route ip-add subnet-mask next hop ip-add | Set up static routes |
| (config)# | no ip route ip-add subnet-mask next hop ip-add | Delete static route |
| # | show ip route | View routing table |
| # | show ip interface brief | View port profile |
Note: ip-add is the IP address; subnet-mask is the subnet mask.
Experimental steps
- Create a network topology as shown in the figure below, and select the router model yourself.
- Configuration of PC0:
- Configuration of PC1:
- Enter the [Command Line] interface of Router0, open and set the port IP: First, you will be asked whether to configure the router in a dialog box. We can skip it by answering no. Then press Enter again to enter the command.
命令如下：
Router>enable
Router#configure terminal //进入特权模式
Router(config)#interface FastEthernet0/0 //进入接口fa0/0
Router(config-if)#ip address 192.168.1.1 255.255.255.0 //配置接口fa0/0
Router(config-if)#no shutdown //启动
Router(config)#interface FastEthernet1/0
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#no shutdown
- Enter the [Command Line] interface of Router1, open and set the port IP:
命令如下：
Router>enable
Router#configure terminal
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.2.2 255.255.255.0
Router(config-if)#no shutdown
Router(config)#interface FastEthernet1/0
Router(config-if)#ip address 192.168.3.1 255.255.255.0
Router(config-if)#no shutdown
- Enter the [Command Line] interface of Router2, open and set the port IP:
命令如下：
Router>enable
Router#configure terminal
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.3.2 255.255.255.0
Router(config-if)#no shutdown
Router(config)#interface FastEthernet1/0
Router(config-if)#ip address 192.168.4.1 255.255.255.0
Router(config-if)#no shutdown
- Then enter the [Command Line] of Router0 and enter the following command:
Router(config-if)#exit
Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2
//告知路由器去 192.168.3.0 子网掩码是 255.255.255.0 这个网段的数据包要通过 192.168.2.2 这个地址送出去。
Router(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.2
Static route settings:ip route-static prefix mask {address| interfacce} [distance] [tag tag] [permanent]
- Prefix: IP of the destination network to be reached
- Mask: The subnet mask of the destination network to be reached
- Address: The IP address of the next hop route, that is, the port address of the adjacent router
- Interface: Local network interface (choose one from the Address above)
- Distance: Administrative distance (optional)
- Tag Tag：tag 值（可选）
- Permanent: Specifies that this route will not be removed even if the port is closed (optional)
- Then enter the [Command Line] of Router1 and enter the following command:
Router(config-if)#exit
Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
Router(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.2
- Then enter the [Command Line] of Router2 and enter the following command:
Router(config-if)#exit
Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
Router(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.1
Experimental results
Enter the command prompt interface of PC0 and ping the IP of PC1:
Enter the command prompt interface of PC1 and ping the IP of PC0:
Note: If the ping succeeds, it means the two PCs are successfully connected. If there is no ping, it may be because the router responds slowly, please wait a moment and try again. If it still fails, please check whether the IP address in the command line is entered correctly and whether the port is set correctly.
Each IP address can also ping each other.
