1.5.2 Lab – Basic Router Configuration Answers
Topology
| Device | Interface | IP Address | Subnet Mask | Default Gateway |
|---|---|---|---|---|
| R1 | Fa0/0 | 192.168.1.1 | 255.255.255.0 | N/A |
| S0/0/0 | 192.168.2.1 | 255.255.255.0 | N/A | |
| R2 | Fa0/0 | 192.168.3.1 | 255.255.255.0 | N/A |
| S0/0/0 | 192.168.2.2 | 255.255.255.0 | N/A | |
| PC1 | NIC | 192.168.1.10 | 255.255.255.0 | 192.168.1.1 |
| PC2 | NIC | 192.168.3.10 | 255.255.255.0 | 192.168.3.1 |
Learning Objectives
- Cable a network according to the Topology Diagram.
- Erase the startup configuration and reload a router to the default state.
- Perform basic configuration tasks on a router.
- Configure and activate Ethernet interfaces.
- Test and verify configurations.
Scenario
Create a network by cabling the devices and entering the initial router configurations required for connectivity. Use the IP addresses that are provided in the table to apply an addressing scheme to the network devices. When the network configuration is complete, examine the routing tables to verify that the network is operating properly.
Task 1: Cable the Network.
Connect the network devices using the appropriate cable types. Connect the devices using the following ports:
- Connect PC1 to S1 FastEthernet 0/2 interface.
- Connect S1 FastEthernet 0/1 interface to R1 FastEthernet 0/0 interface.
- Connect the serial DCE cable to router R1 Serial 0/0/0 interface and the serial DTE cable to router R2 Serial 0/0/0 interface.
- Connect R2 FastEthernet 0/0 interface to PC2.
Task 2: Erase and Reload the Routers.
Step 1 – Establish a terminal session to router R1.
Step 2 – Enter privileged EXEC mode.
Step 3 – To clear the configuration, issue the erase startup-config command.
Press enter when prompted to [confirm] that you really do want to erase the configuration currently stored in NVRAM.
Step 4 – When the prompt returns, issue the reload command.
Answer ’no’ if asked to save changes.
Step 5 – Repeat steps 1 through 4 on router R2 to remove any startup configuration file that may be present.
Task 3: Basic Configuration of Router R1.
Step 1 – Establish a terminal session to router R1.
Step 2 – Enter privileged EXEC mode.
Step 3 – Enter global configuration mode.
Step 4 – Configure the router name as R1.
Enter the command hostname R1 at the prompt.
Step 5 – Disable DNS lookup with the no ip domain-lookup command.
Step 6 – Configure the EXEC mode password using the enable secret password command.
Use class for the password.
Step 7 – Configure a message-of-the-day banner using the banner motd command.
Step 8 – Configure the console password on the router.
Use cisco as the password. When you are finished, exit from line configuration mode.
Step 9 – Configure the password for the virtual terminal lines.
Use cisco as the password. When you are finished, exit from line configuration mode.
Step 10 – Configure the FastEthernet0/0 interface with the IP address 192.168.1.1/24. Activate the interface by using the no shutdown command.
Step 11 – Configure the Serial0/0/0 interface with the IP address 192.168.2.1/24. Activate the interface by using the no shutdown command.
Set the clock rate to 64000.
Step 12 – Use the end command to return to privileged EXEC mode.
Step 13 – Save the R1 configuration using the copy running-config startup-config command.
Task 4: Basic Configuration of Router R2.
Step 1 – For R2, repeat Steps 1 through 9 from Task 3, using R2 as the hostname.
Step 2 – Configure the Serial 0/0/0 interface with the IP address 192.168.2.2/24.
Activate the interface by using the no shutdown command.
Step 3 – Configure the FastEthernet0/0 interface with the IP address 192.168.3.1/24.
Activate the interface by using the no shutdown command.
Step 4 – Use the end command to return to privileged EXEC mode.
Step 5 – Save the R2 configuration using the copy running-config startup-config command.
Task 5: Configure IP Addressing on the Host PCs.
Step 1 – Configure the host PC1 that is attached to R1 with an IP address of 192.168.1.10/24 and a default gateway of 192.168.1.1.
Step 2 – Configure the host PC2 that is attached to R2 with an IP address of 192.168.3.10/24 and a default gateway of 192.168.3.1.
Task 6: Verify and Test the Configurations.
Step 1 – Verify routing tables have the following routes using the show ip route command.
Step 2 – Verify the configuration of each router’s interface using the show ip interface brief command.
Step 3 – Test connectivity by pinging from each host to the default gateway that has been configured for that host.
From the host attached to R1, ping the default gateway.
From the host attached to R2, ping the default gateway.
Step 4 – Test connectivity between router R1 and R2.
From the router R1, ping R2 using the command ping 192.168.2.2.
From the router R2, ping R1 using the command ping 192.168.2.1.
