In this section, we will be going to discuss how to configure Static Routing between two routers using Cisco Packet Tracer. You can also use other Simulation software like Boson, GNS, etc. This software is freely available on their respective official sites. You can download them and install them on your system.
However, It will be better if you can afford two live routers, but economically it is not feasible. Simulation software works well and accepts almost all the CLI commands. Hence, it is much better and economic for the hands-on practice of the Cisco router Commands.
Configuration of Static Routing
Static routing between two routers is configured manually by the network administrator. It is considered to be more reliable and secure routing than dynamic routing. But, static routing is more effective in smaller networks. As the network size increases, it is difficult to manage every router manually.
While configuring the static routing, we do not have to make the entry of directly connected networks, since they are locally connected with the router ports. We have to make the entry of indirectly connected networks via next-hop router interface IP or the exit interface.
The CLI command for configuring static routing is:
| Router(config)#ip route [destination network] [subnet mask] [next hp interface IP address or Exit Interface Id]
For example: Router(config)#ip route 192.168.1.0 255.255.255.0 10.0.0.2 |
Here, we are taking two routers for static routing configuration.
Let us look at the network scenario.
How to Set up Connectivity
- Take two Cisco Routers Model 2911, two Ethernet Switches, and four generic PCs.
- Connect them using the appropriate cables.
- Use RJ 45 copper straight cable for connecting router LAN interface ( Gigabit Ethernet Port) with Switch Fast Ethernet port and switch to PC as shown in the diagram.
- Use Serial Cable to connect the serial interface of the two routers for point to point connection.
- The serial interface is not integrated with the router, hence it has to be fitted externally. Insert the serial card ( here we are taking HWIT-2T )to the appropriate serial card slot. Please be sure that the router is off while inserting the card to the slot.
- While configuring serial interface between two routers, please keep in mind that one end will be the DCE (Data Communication Equipment)and the other end will be DTE (Data Terminal Equipment).
- We have to assign a clock rate or the bandwidth to the DCE end. The clock rate is written in bit per sec. Suppose, we have to assign channel bandwidth of 1Mbps, the clock rate is set as 1000000.
Distribution of IP addresses across the respective Interfaces
Follow the table below and configure the following IP addresses to the respective ports of the two routers and the PCs.
| Srl No | Devices | IP address | Subnet Mask | Default gateway | Interfaces |
| 1 | Router 1 | 192.168.1.1 | 255.255.255.0 | Gigabit Ethernet 0/0 |
| 2 | Router 1 | 10.0.0.1 | 255.0.0.0 | Serial 0/0/0 |
| 3 | Router 2 | 192.168.2.1 | 255.255.255.0 | Gigabit Ethernet 0/0 |
| 4 | Router 2 | 10.0.0.2 | 255.0.0.0 | Serial 0/0/0 |
| 5 | PC 0 | 192.168.1.5 | 255.255.255.0 | 192.168.1.1 | Ethernet |
| 6 | PC 1 | 192.168.1.10 | 255.255.255.0 | 192.168.1.1 | Ethernet |
| 7 | PC 2 | 192.168.2.5 | 255.255.255.0 | 192.168.2.1 | Ethernet |
| 8 | PC 2 | 192.168.2.10 | 255.255.255.0 | 192.168.2.1 | Ethernet |
Router 1 Configuration
When the router enters into the initial set up mode after the booting process. Type NO and hit the Enter key to go to the User Exec Mode.
STEP 1.1: Configure IP Address for Gigabit Ethernet 0/0 interface
| — System Configuration Dialog —
Would you like to enter the initial configuration dialog? [yes/no]: no Press RETURN to get started! Router1>enable Router1#config t Router1(config)#interface Gigabit Ethernet 0/0 Router1(config-if)#ip address 192.168.1.1 255.255.255.0 Router1(config-if)#no shutdown Router1(config-if)#exit Router1(config)# |
STEP 1.2: Configure the IP Address for the Serial 0/0/0 interface.
| Router1(config)#interface Serial 0/0/0
Router1(config-if)#ip address 10.0.0.1 255.0.0.0 Router1(config-if)#clock rate 1000000 Router1(config-if)#no shutdown Router1(config-if)#exit |
STEP 1.3: Configure Static Routing for Router 1 and save the configuration.
| Router1(config)#ip route 192.168.2.0 255.255.255.0 10.0.0.2
Router1(config)#exit Router#write Building configuration… [OK] |
Router 2 Configuration
Now, configure the router 2 similarly as router 1, but with different IP addresses.
STEP 2.1: Configure IP Address for Gigabit Ethernet 0/0 interface
| — System Configuration Dialog —
Would you like to enter the initial configuration dialog? [yes/no]: no Press RETURN to get started! Router2>enable Router2#config t Router2(config)#interface Gigabit Ethernet 0/0 Router2(config-if)#ip address 192.168.2.1 255.255.255.0 Router2(config-if)#no shutdown Router2(config-if)#exit Router2(config)# |
STEP 2.2: Configure the IP Address for the Serial 0/0/0 interface.
| Router2(config)#interface Serial 0/0/0
Router2(config-if)#ip address 10.0.0.2 255.0.0.0 Router2(config-if)#no shutdown Router2(config-if)#exit |
STEP 2.3: Configure Static Routing for Router 1 and save the configuration.
| Router2(config)#ip route 192.168.1.0 255.255.255.0 10.0.0.1
Router2(config)#exit Router2#write Building configuration… [OK] |
Check the configuration by executing the PING command from the PC of one network to another network. If the ping is successful, that means static routing is configured between two routers is configured successfully.
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