Bahria University, Lahore Campus
Department of Computer Sciences
Lab Journal 05
(Spring 2024)
Data Communication
Course: Network Lab Date: 13-03-2024
Course Code: CSL-320 Max Marks: 20
Lab Engineer: Muhammad Umar
Faculty’s Name: Dawood Akram
Nasir
Name: _____________________________ Enroll No: _______________________
Objective(s):
To understanding of Command Line Interface of Cisco Packet Tracer. Knowledge of the working
of layer 3 devices.
Tool(s) used:
CISCO Packet Tracer
Command Line Interface
After the interface status messages appear and you press Enter, the Switch>or Router>prompt
will pop up. This is called user exec mode, or user mode for short, and although it’s mostly used to view
statistics. There are three modes each with access to different command sets:
User exec mode—this is the first mode a user has access to after logging into the Switch or Router. This
mode allows the user to execute only the basic commands, such as those that show the system's status.
The system cannot be configured or restarted from this mode.
Privileged mode— this mode allows users to view the system configuration, restart the system, and
enter configuration mode. It also allows all the commands that are available in user mode. You enter it
via the enable command like this:
Switch>enable
Switch#
Privileged mode can be identified by the # prompt following the router or switch name. You can go back
from privileged mode into user mode by using the disable command:
Switch# disable
Switch>
Configuration mode— this mode allows users to modify the running system configuration. To
enter configuration mode, enter the command configure terminal from privileged mode.
Switch# configure terminal
Switch(config)#
Configuration mode has various sub modes, starting with global configuration mode, which can be
identified by the (config)# prompt following the router name. As the configuration mode sub modes
change depending on what is being configured, the words inside the parentheses change.
Mode Definition
User exec mode Limited to basic monitoring commands
Privileged exec mode Provides access to all other router commands
Global configuration mode Commands that affect the entire system
Specific Configuration Commands that affect interfaces/processes Modes only
Setup mode Interactive configuration dialog
Task 01 Creating the Network
Topology Diagram
Device Interface IP Address Subnet Mask Default Gateway
Fast Ethernet 0/0 192.168.1.1 255.255.255.0 NA
R1 Serial 0/0/0 192.168.2.1 255.255.255.0 NA
Fast Ethernet 0/0 192.168.3.0 255.255.255.0 NA
R2 Serail 0/0/0 19.168.2.2 255.255.255.0 NA
PC 1 NA 192.168.1.10 255.255.255.0 192.168.1.1
PC 2 NA 192.168.3.10 255.255.255.0 19.168.3.1
Answer the following questions.
What type of cable is used to connect the Ethernet interface on a host PC to the Ethernet
interface on a switch? ____________________________
What type of cable is used to connect the Ethernet interface on a switch to the Ethernet
interface on a router? ____________________________
What type of cable is used to connect the Ethernet interface on a router to the Ethernet
interface on a host PC? __________________________
What type of cable is used to connect the Serial interface on a router R1 to the Serial interface
on a router R2? _________________________
Task 02 Perform basic IOS command line interface operations
Step 1 Establish a terminal session to router R1.
The console port is a management port used to provide out-of-band access to a router. It is used to set
up the initial configuration of a router and to monitor it.
A rollover cable and an RJ-45 to DB-9 adapter are used to connect a PC to the console port. As you know
from your previous studies, terminal emulation software is used to configure the router over the console
connection.
Step 2 Which command is used to enter privileged EXEC mode?
Step 3 Enter global configuration mode. Run the following command and write your observations.
Router# configure terminal
Task 03 Perform basic Configuration of Router R1.
Step 1 Configure the router name as R1.
Enter the command at the prompt
Router(config)# hostname R1
Step 2 Configure the EXEC mode password.
Configure the EXEC mode password using the following command. Use class for the password.
R1(config)# enable secret class
OR
R1(config)# enable password class
Step 3 Configure the console password on the router.
Run following commands to set console password on the router. Use cisco as the password. When you
are finished, exit from line configuration mode. Write down your observations.
R1(config)# line console 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#exit
Step 4 Configure the password for the virtual terminal lines.
Run following commands to set telnet password on the router. Use cisco as the password. When
you are finished, exit from line configuration mode.
R1(config)#line vty 0 4
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#exit
Step 5 Configure the FastEthernet0/0 interface.
Configure the FastEthernet0/0 interface with the IP address 192.168.1.1/24 by using following
commands. Write down your observations
R1(config)#interface fastethernet 0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown
Step 6 Configure the Serial0/0/0 interface.
Configure the Serial0/0/0 interface with the IP address 192.168.2.1/24. Set the clock rate to 64000.
R1(config-if)#interface serial 0/0/0
R1(config-if)#ip address 192.168.2.1 255.255.255.0
R1(config-if)#clock rate 64000
R1(config-if)#no shutdown
R1(config-if)#exit
Step 7 Save the R1 configuration.
Save the R1 configuration using the following command and write your observations
R1#copy running-config startup-config
Task 3.1 Perform Basic Configuration of Router R2.
Step 1 For R2, repeat Steps 1 through 6 from Task 3
Step 2 Configure the Serial 0/0/0 interface with the IP address 192.168.2.2/24.
Write commands for configuration.
Step 3 Configure the FastEthernet0/0 interface with the IP address 192.168.3.1/24. Write commands for
configuration.
Step 4 Save the R2 configuration.
Save the R2 configuration as done in Task 3 step 9.
Configure IP Addressing on the Host PCs
Step 1 Configure the host PC1.
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.
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.
Explain the significance of gateway.
Task 04 Verify and Test the Configurations.
Step 1 Verify that routing tables have the following routes using the show ip route command.
The show ip route command and output will be thoroughly explored in upcoming labs. For now,
you are interested in seeing that both R1 and R2 have two routes. Both routes are designated with a C.
These are the directly connected networks that were activated when you configured the interfaces on
each router. If you do not see two routes for each router as shown in the following output, proceed to
Step 2.
Run the following command on R1 and R2 and write your observations.
R1#show ip route
Step 2 Verify interface configurations.
Another common problem is router interfaces that are not configured correctly or not activated. Use the
following command to quickly verify the configuration of each router’s interfaces. Write your
observations
R1#show ip interface brief
Step 3 Test connectivity using ping.
The ping command is a useful tool for troubleshooting Layers 1 through 3 of the OSI model and
diagnosing basic network connectivity. This operation can be performed at either the user or privileged
EXEC modes. Using ping sends an Internet Control Message Protocol (ICMP) packet to the specified
device and then waits for a reply. Pings can be sent from a router or a host PC. Use the ping command to
test connectivity between the R1 router and PC1. Write your observation.
R1#ping 192.168.1.10
Test connectivity by pinging from each host to the default gateway that has been configured for that
host. From the host attached to R1, is it possible to ping the default gateway?
From the host attached to R2, is it possible to ping the default gateway?
