Labs

Liberty University CSIS331

Liberty University

CSIS 331

Lab 3 Instructions

Packet Tracer:

[Adapted from Cisco Networking Academy Intro to Networking 6.4.3.3]

Overview

In this activity, you will use various show commands to display the current state of the router. You will then use the Addressing Table to configure router Ethernet interfaces. Finally, you will use commands to verify and test your configurations.

Note: The routers in this activity are partially configured. Some of the configurations are not covered in this course, but are provided to assist you in using verification commands.

Part 1: Display Router Information

Step 1: Display interface information on R1.

Note: Click a device and then click the CLI tab to access the command line directly. The console password is cisco. The privileged EXEC password is class.

Answer questions Part1 Step 1. a. and b. in your Lab 3 Answer Sheet

c. Enter the command to display the statistics for the Serial 0/0/0 interface on R1 and answer questions c1) c2) in your Lab 3 Answer Sheet.

d. Enter the command to display the statistics for the GigabitEthernet 0/0 interface and answer questions d1) d2) d3).

Step 2: Display a summary list of the interfaces on R1.

Answer questions Step 2 a. in your Lab 3 Answer Sheet.

b. Enter the command on each router and answer questions Part 2 b. 1), b. 2), b. 3).

Step 3: Display the routing table on R1.

Answer the question Step 3 a. in your Lab 3 Answer Sheet.

b. Enter the command on R1 and answer questions Step 3 b. 1), b. 2), b. 3) in your Lab 3 Answer Sheet.

Part 2: Configure Router Interfaces

Step 1: Configure the GigabitEthernet 0/0 interface on R1.

a. Enter the following commands in bold to address and activate the GigabitEthernet 0/0 interface on R1:

R1(config)# interface gigabitethernet 0/0

R1(config-if)# ip address 192.168.10.1 255.255.255.0

R1(config-if)# no shutdown

%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

b. It is good practice to configure a description for each interface to help document the network information. Configure an interface description indicating to which device it is connected.

R1(config-if)# description LAN connection to S1

c. R1 should now be able to ping PC1.

R1(config-if)# end

%SYS-5-CONFIG_I: Configured from console by console

R1# ping 192.168.10.10

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.10.10, timeout is 2 seconds: .!!!!

Success rate is 80 percent (4/5), round-trip min/avg/max = 0/2/8 ms

Step 2: Configure the remaining Gigabit Ethernet Interfaces on R1 and R2.

a. Use the information in the Addressing Table to finish the interface configurations for R1 and R2. For each interface, do the following:

1) Enter the IP address and activate the interface.

2) Configure an appropriate description.

b. Verify interface configurations.

Step 3: Back up the configurations to NVRAM.

Save the configuration files on both routers to NVRAM. Answer question Part 2 Step 3 a. in your Lab 3 Answer Sheet.

Part 3: Verify the Configuration

Step 1: Use verification commands to check your interface configurations.

a. Use the show ip interface brief command on both R1 and R2 to quickly verify that the interfaces are configured with the correct IP address and active. Answer questions Part 3 Step 1 a. 1), a. 2), a. 3) in your Lab 3 Answer Sheet.

b. Use the show ip route command on both R1 and R2 to view the current routing tables . Answer questions Part 3 Step 1 b. 1), b. 2), b. 3), b. 4) in your Lab 3 Answer Sheet.

Note: If your answer is “no”, then you are missing a required configuration. Review the steps in Part 2.

Step 2: Test end-to-end connectivity across the network.

You should now be able to ping from any PC to any other PC on the network. In addition, you should be able to ping the active interfaces on the routers. For example, the following should tests should be successful:

Complete the Ping Output in your Lab 3 Answer Sheet.

Note: For simplicity in this activity, the switches are not configured; you will not be able to ping them.

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