Why Do We Need a Router? When Connecting Two Different Networks Together

Why Do We Need a Router? When Connecting Two Different Networks Together Welcome to the my lab! In this video tutorial, I will be breaking down the absolute foundational principles of routing. If you've ever wondered why a switch isn't enough to connect different parts of the internet, or why your wires stay red when you first plug in a Cisco router, this step-by-step video guide is for you. Follow along with me as I configure two separate network environments, open the interface status ports, assign default gateways, and run the final successful ping test. Press play below to watch the full walkthrough, and don't forget to drop a comment if you get stuck on any of your configurations!

Step-by-Step Guide: How to Build a Web Server Network in Cisco Packet Tracer

 

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Welcome back, network engineers! In this hands-on lab, we are moving past basic theories and building a fully functional, simulated local web server network using Cisco Packet Tracer.

By the end of this guide, you will understand how a client PC requests and retrieves web pages across an enterprise switch.


Network Topology Overview

Before we begin configuring, here is the hardware layout we are using for this lab:

  • 2 User PC (The Client machine requesting data)
  • 1 Cisco 2960 Enterprise Switch (Handles local traffic switching)
  • 1 Network Server (Hosts our HTTP website service)
  • Copper Straight-Through Cables (Connects our devices together)

Step 1: Deploy and Connect the Hardware

  1. Open Cisco Packet Tracer to a clean workspace.
  2. Navigate to the bottom-left corner, click End Devices, and drag a PC and a Server onto the screen.
  3. Click Network Devices, select Switches, and drop a 2960 Switch right between them.
  4. Select the Connections menu (the lightning bolt icon) and choose the Copper Straight-Through Cable (solid black line).
  5. Connect PC0 (FastEthernet0) to Switch0 (FastEthernet0/1).
  6. Connect Server0 (FastEthernet0) to Switch0 (FastEthernet0/2).

Tech Note: We use a Copper Straight-Through cable here because we are connecting different layers of devices together (a Layer 3 host to a Layer 2 switch).


Step 2: Configure the Client PC IP Address

Devices need unique IP logical identifiers to find each other on a local subnet.

  1. Left-click on PC0 to open its settings window.
  2. Go to the Desktop tab at the top.
  3. Click on IP Configuration.
  4. Set the toggle to Static and enter the following details:
    • IPv4 Address: 192.168.1.10
    • Subnet Mask: 255.255.255.0 (This will auto-fill when you press the Tab key).

Step 3: Configure the Web Server IP Address

Now, we must assign our server an IP address on the exact same subnet mask network so they can communicate seamlessly without a router.

  1. Close the PC window and left-click on Server0.
  2. Go to the Desktop tab and select IP Configuration.
  3. Set the toggle to Static and enter these details:
    • IPv4 Address: 192.168.1.50
    • Subnet Mask: 255.255.255.0

Step 4: Turn On and Customize the HTTP Service

This is where our server turns into a web host. We will enable Hypertext Transfer Protocol (HTTP) and edit its default page file.

  1. Inside the Server0 window, click on the Services tab at the top.
  2. Select HTTP from the left-hand menu.
  3. Ensure both HTTP and HTTPS are toggled to ON.
  4. Look at the file list below, find index.html, and click edit next to it.
  5. Locate the HTML welcome text and customize it to your liking. (Example: Change it to say Welcome to Strategen NetLabs service!).
  6. Click Save at the bottom of the code box and confirm the file overwrite. 

Step 5: Test the Web Server Connectivity

Let's verify that our physical layer, data link layer, and network layer configurations are all working perfectly.

  1. Go back to your desktop and open PC0.
  2. Go to the Desktop tab and click on the virtual Web Browser application icon.
  3. In the URL bar at the top, type the server's exact IP address: 192.168.1.50
  4. Click the Go button.

If everything was configured correctly, your customized webpage will load right inside your client PC browser window!


Download the Completed Lab File

Want to jump straight into the running network topology or troubleshoot your setup? Download my exact pre-built Cisco Packet Tracer project file below:

👉 https://omg10.com/4/11250121👈

🔄 If your download does not start automatically, use this direct https://drive.google.com/file/d/1tC2r7it7QGYZ6MsLKyICSlK0rmhEpqCA/view?usp=sharing to get the .pkt lab file.

Keep practicing, keep configuring, and see you in the next tutorial!

 

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