BASIC LAN CONFIGURATION
Laboratory Exercise No. 1
Data Communications and Networks
GarciaEA/GarciaTS
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
EXPERIMENT #1
BASIC LAN CONFIGURATION
LEARNING OBJECTIVES
Upon completion of this lab, you will be able to:
• Create a logical topology from the given specification
• Create subnets to meet host requirements
• Construct the physical topology
• Configure the logical topology
• Check network connectivity
TASK 1: DESIGN A LOGICAL LAN TOPOLOGY
Step 1: Design an IP addressing scheme.
• Given the IP address block of 192.168.7.0 /24, provide an IP plan that will satisfy the
given requirement shown below.
Subnet
Subnet A
Subnet B
Number of Host
110
54
Subnet A
Specification
New IP mask (decimal)
Maximum number of usable subnets (including 0 subnet)
Number of usable hosts per subnet
IP subnetwork address
First IP host address
Last IP host address
Subnet B
Specification
New IP mask (decimal)
Maximum number of usable subnets (including 0 subnet)
Number of usable hosts per subnet
IP subnetwork address
First IP host address
Last IP host address
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS
Student input
Student input
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
Step 2: Write down the IP address information for each device.
Host computers will use the second usable IP address in the subnet. The network router will use the
first usable IP address in the subnet.
Device
Host1
Router1 Fa0/0
Host2
Router1 Fa1/0
IP Address
2nd usable IP of subnet1
1st usable IP of subnet1
2nd usable IP of subnet2
1st usable IP of subnet2
Mask
1st usable IP of subnet2
TASK 2: CONFIGURE THE PHYSICAL TOPOLOGY
Step 1: Cable the network.
Refer to the figure and table below for the necessary cables.
Cabling
Host1 to Router1 Fa0/0
Switch1 to Router1 Fa1/0
Switch1 to Host2
Host1-Console to Router1
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS
Gateway
1st usable IP of subnet1
Cable type
Cross-over
Straight-through
Straight-through
Rollover
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
TASK 3: CONFIGURE THE LOGICAL TOPOLOGY
Step 1: Configure the host computers.
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
Step 2: Configure Router1.
Task
Router name
Router1 interface fa0/1
Description
Router1
Set the description
Set the layer3 address
Set the description
Set the layer3 address
Router1 interface fa1/0
Enter the following commands on the router:
Router>enable
Router#configure terminal
Router(config)#hostname Router1
Router1(config)#interface fa0/0
Router1(config-if) #description connection to host1
Router1(config-if) #ip address <1st usable IP> <subnet mask>
Router1(config-if) #no shutdown
Router1(config)#interface fa1/0
Router1(config-if) #description connection to switch1
Router1(config-if) #ip address <2nd usable IP> <subnet mask>
Router1(config-if) #no shutdown
Router1(config-if) #
TASK 4: VERIFY NETWORK CONNECTIVITY
Step 1: Use the ping command to verify network connectivity.
Use the table below for checking connectivity:
From
Host1
Host1
Host1
Host2
Host2
Host2
To
Router1 fa0/0
Router1 fa1/0
Host2
Host1
Router1 fa1/0
Router1 fa0/0
IP Address
PING result from Host1
PING result from Host2
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS
Result
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
TASK 5: ADDITIONAL TASKS
A. Subnetting
1. Perform subnetting for the given IP address and show the complete solution.
2. Calculate the following:
o
Network Address
o
Broadcast Address
o
Number of Usable Hosts
o
Subnet Mask
B. IP Addressing Plan
1. Create a structured IP Address Table Plan for the given network scenario.
2. Include details such as Device Name, Assigned IP Address, Subnet Mask, and Gateway.
C. DTE and DCE in Networking
1. Define Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE).
2. Explain the relationship between DTE and DCE in network interconnection.
3. Provide real-world examples of DTE and DCE devices.
D. Network Cables
1. Describe the purpose and structure of the following cables:
o
Straight-through cable
o
Crossover cable
E. Application of Network Cables
1. When should a crossover cable be used? Provide specific examples.
2. When should a straight-through cable be used? Provide specific examples.
F. Cable Configuration Diagram
1. Draw and label the wiring configuration for:
o
A Crossover Cable
o
A Straight-through Cable
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS
Pamantasan ng Lungsod ng Maynila
College of Engineering and Technology
G. Network Connection Behavior
1. Explain why the connection between Host 2 and the Switch is automatically enabled.
2. What mechanism triggers the automatic enabling of the connection?
H. Networking Concepts
1. Define and explain the concept of a Gateway in networking.
2. How does a gateway function in routing traffic between networks?
I. Reflection and Learning
1. Summarize your key takeaways from this activity.
2. How do these concepts apply to real-world networking scenarios?
Data Communications and Networks Laboratory Manual
GarciaEA/GarciaTS