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Practical

Practical 2: Creating a Basic Home LAN

Build a wired & wireless home network in Packet Tracer

🌐 Introduction to Networks 🛠️ Packet Tracer 👤 Reza Farashahi
In this practical you will create a basic home Local Area Network (LAN) using Packet Tracer. You will connect wired and wireless devices through a switch and wireless router, route traffic through a cable modem, and represent the Internet connection — simulating a typical home network setup.

🎯 Objectives

📋 Required Equipment

Add the following devices to your Packet Tracer workspace:

📦 Step 1 — Set Up End Devices

Open Packet Tracer, create a new file, and add the user devices.

  1. Click on the End Devices category in the bottom panel.
  2. Add a Desktop Computer to your workspace.
  3. Add a Laptop Computer.
  4. Add a Tablet device (label it iPad).
  5. Add a Smartphone device (label it Android Phone).

🔧 Step 2 — Add Network Infrastructure

Now add the equipment that ties the network together.

  1. Click on the Network Devices category.
  2. Add a Switch (2960) to your workspace.
  3. Add a Home Router from the wireless devices subcategory.
  4. Add a Cable Modem from WAN Emulation.

🖨️ Step 3 — Add Storage & Printer

  1. From End Devices, add a Server-PT and label it Network Attached Storage (NAS) Server.
  2. Add a Printer and label it Network Printer.

☁️ Step 4 — Represent the Internet

  1. From WAN Emulation or Network Devices, add a Cloud-PT and label it Internet.
Note: Packet Tracer cannot fully emulate the Internet. The cloud symbol represents the connection to your ISP.

📐 Step 5 — Arrange Your Devices

Arrange devices logically so the diagram is easy to read:

  1. Desktop & Laptop → top-left
  2. Switch → below them
  3. NAS Server & Printer → bottom-left
  4. Wireless Router → right of the Switch
  5. Tablet & Smartphone → top-right
  6. Cable Modem → right of the Wireless Router
  7. Cloud / Internet → far right

🔌 Step 6 — Connect Your Devices

Use the Connections panel (lightning bolt icon) to cable everything together.

Copper Straight-Through

  1. Select Copper Straight-Through.
  2. Connect Desktop Computer → Switch
  3. Connect Laptop → Switch
  4. Connect NAS Server → Switch
  5. Connect Network Printer → Switch

Copper Cross-Over

  1. Select Copper Cross-Over.
  2. Connect Wireless Router → Cable Modem
  3. Connect Switch → Wireless Router

Coaxial Cable

  1. Select Coaxial.
  2. Connect Cable Modem → Cloud / Internet
Note: The Tablet and Smartphone connect wirelessly — no manual cabling needed for those devices.

📶 Step 7 — Verify Wireless Connections

  1. Click on the Wireless Router to open its configuration panel.
  2. Make sure the device is turned ON.
  3. Close the panel.
  4. Dotted lines should appear connecting the Tablet and Smartphone to the Router.

✅ Step 8 — Verify the Network Layout

Check that your network matches this summary:

🔍 Step 9 — Test Connectivity with CLI Commands

Now let’s verify that devices can actually communicate by using command-line tools inside Packet Tracer.

Check IP Addresses

  1. Wait until all link indicators turn green (this may take 30–60 seconds).
  2. Click on the Desktop Computer to open its configuration panel.
  3. Go to the Desktop tab → click Command Prompt.
  4. Type the following command and press Enter:
    ipconfig
  5. Note down the IPv4 Address shown (e.g. 192.168.0.x).

Ping Another Device

  1. Open the LaptopDesktop tab → Command Prompt.
  2. Run ipconfig to find the Laptop’s IP address.
  3. Go back to the Desktop Computer’s Command Prompt.
  4. Ping the Laptop using its IP address:
    ping 192.168.0.x
    Replace 192.168.0.x with the actual IP you noted from the Laptop.
  5. You should see replies like:
    Reply from 192.168.0.x: bytes=32 time<1ms TTL=128
    Reply from 192.168.0.x: bytes=32 time<1ms TTL=128
    Reply from 192.168.0.x: bytes=32 time<1ms TTL=128
    Reply from 192.168.0.x: bytes=32 time<1ms TTL=128
Try this: Ping the NAS Server and Wireless Router as well. Can you also ping the Tablet or Smartphone from the Desktop?
Troubleshooting: If the ping fails with “Request timed out”, check that your cables are connected correctly and that all link lights are green. Also make sure the Wireless Router’s DHCP server is assigning IP addresses.

🏁 Step 10 — Final Arrangement

  1. Rearrange devices if needed so the diagram is clean and readable.
  2. Double-check every connection listed in Step 8.

📝 Summary

Your completed home network should contain:

Looking ahead: In a real network you would also configure IP addresses for each device. We will cover that in upcoming practicals.
Tip: Save your Packet Tracer file — future practicals will build on this network.