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Discovering computer networks: hands on in the Open Networking Lab
Discovering computer networks: hands on in the Open Networking Lab

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13.4 Configuring devices

In this section all your learning in the first three sections of this session is consolidated by going through the process of building and configuring a fairly simple network. The more often you engage in these practical activities the more confident you will become and the more proficient in using the commands. Your work here starts with a practical video demonstration and then an activity where you become the network manager.

First watch the video below, which is about 6 minutes long. This video demonstrates how to build and configure the network shown in Figure 1. For convenience, the configuration settings are also shown in Table 1.

Figure 1
Table 1
DeviceIP addressSubnet maskDefault gateway
PC0192.168.0.10255.255.255.0192.168.0.1
PC1192.168.1.20255.255.255.0192.168.1.1
Router G0/0192.168.0.1255.255.255.0
Router G0/1192.168.1.1255.255.255.0

Configuring devices

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Activity 4 Try it out

10 minutes

In this activity you will enlarge the network demonstrated in the video above by adding two more PCs and a switch connected as shown in Figure 2.

Figure 2

1. Complete Table 2, choosing suitable values.

Table 2
DeviceIP addressSubnet maskDefault gateway
PC0192.168.0.10255.255.255.0192.168.0.1
PC1192.168.1.20255.255.255.0192.168.1.1
PC2   
PC3   
Router G0/0192.168.0.1255.255.255.0
Router G0/1192.168.1.1255.255.255.0
Router G0/2

2. Open PT Anywhere [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] in a new tab or window so you can read these instructions. In this scenario, the completed network from the video above is provided.

3. Add Switch2, PC2 and PC3, and connect them to the network as shown in Figure 2.

4. Configure PC2, PC3 and the router interface G0/2 with the settings you chose in Table 2.

5. Can you ping PC0 from PC3?

6. Can you Ping PC2 from PC3?

Answer

Here are the things to check if your pings were unsuccessful:

  • Did you choose suitable values for PC2, PC3 and router interface G0/2?
  • Did you correctly set the default gateways for PC2 and PC3?
  • Did you remember to include the no shut command when configuring the router interface G0/2?

Suitable values are shown in Table 3. but others could have worked just as well.

Table 2
DeviceIP addressSubnet maskDefault gateway
PC0192.168.0.10255.255.255.0192.168.0.1
PC1192.168.1.20255.255.255.0192.168.1.1
PC2192.168.2.30255.255.255.0192.168.2.1
PC3192.168.1.10255.255.255.0192.168.1.1
Router G0/0192.168.0.1255.255.255.0
Router G0/1192.168.1.1255.255.255.0
Router G0/2192.168.2.1255.255.255.0