NetLabPro

1. Lab Objectives

• Learn Packet Tracer basics and interface.
• Build network topologies and configure hosts.
• Configure DHCP and verify connectivity.
• Understand bus, star, mesh, ring, and hybrid topologies.

2. Lab Steps

STEP I: Start Packet Tracer and create a new project.

STEP II: Add PCs, laptops, switches, hubs, and servers.

STEP III: Build topology, connect devices using proper cables.

STEP IV: Assign IP addresses and subnet masks to hosts (if not using DHCP).

STEP V: Configure DHCP server to assign IP addresses automatically.

STEP VI: Verify connectivity in Realtime and Simulation modes.

STEP VII: Save topology as .pkt file.

3. DHCP Configuration

What is DHCP? DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses and network settings to devices in a network. This avoids manual configuration and reduces errors.

Why use DHCP?

• Saves time by automatically assigning IP addresses.
• Ensures no IP conflicts occur in the network.
• Easy management in large networks.

Configuring DHCP in Packet Tracer:

STEP I: Add a server to your topology.

STEP II: Click on the server and go to the "Config" tab.

STEP III: Select "DHCP" and enable it.

STEP IV: Define a pool of IP addresses (e.g., 172.16.1.10 to 172.16.1.50) and subnet mask.

STEP V: Optionally set default gateway and DNS.

STEP VI: Click on PCs, go to "Desktop" → "IP Configuration" → select DHCP.

STEP VII: Verify that PCs automatically get an IP from the DHCP server.

4. Network Topologies Summary

Topology	Description	Advantages	Disadvantages
Bus	Single backbone cable	Low cost	Single point failure
Star	Central hub/switch	Easy management	Hub failure stops network
Mesh	All devices interconnected	Fault-tolerant	Complex cabling
Ring	Devices in circular chain	Orderly data flow	Single point failure
Hybrid	Combination of topologies	Flexible	High cost

5. Lab Resources