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CCNA Course: VLAN Configuration and Testing

May 22, 2025

Jeremy's IT Lab - CCNA Course Overview

Introduction

  • Welcome to a comprehensive free course for the CCNA certification.
  • Encouragement to subscribe, like, comment, and share the videos.
  • Mention of downloadable practice labs and the Boson NetSim tool.

Lab Exercise Overview

Network Access Section

  • Focus on Configuring VLANs:
    • Creating and deleting VLANs.
    • VTP (to be covered in a later lecture).
    • VLAN configuration and trunking.

Lab Focus: Configuring VLANs

  • Step 1: Configuring access ports on switch interfaces.

    • Use of commands: ENABLE, CONFIGURE TERMINAL.
    • Configuration of PCs in VLAN10 and VLAN30 on SW1.
    • Configuration of PCs in VLAN20 and VLAN10 on SW2.

  • Step 2: Configuring trunk connections between switches.

    • Use of command: SWITCHPORT TRUNK ENCAPSULATION DOT1Q.
    • Importance of allowing only necessary VLANs on the trunk.
    • Configuration of native VLAN to an unused VLAN (e.g., 1001).

  • Step 3: Configuring router-on-a-stick connection between SW2 and R1.

    • Configuration of subinterfaces for VLANs 10, 20, 30 on R1.
    • Importance of using consistent IP addressing (last usable address).

Connectivity Testing

  • Testing connectivity using ping between PCs in different VLANs.
  • Explanation of routing paths and inter-VLAN routing via R1.

Boson NetSim Preview

  • Introduction to the Boson NetSim tool for additional practice.
  • Overview of lab tasks:
    • Task 1: Configuring switch and PC hosts.
    • Task 2: Configuring subinterfaces.
    • Task 3: Completing and verifying connectivity.

Task 1 Detailed Steps

  • Verification of IP configurations on PCs using IPCONFIG /ALL.
  • Setting hostname on Switch1.
  • Creation and verification of VLANs on the switch.
  • Discovery of connected ports using MAC address table.
  • Assignment of PCs to appropriate VLANs.

Connectivity Testing within Boson Lab

  • Explanation of failure in ping test due to lack of inter-VLAN routing.
  • Use of commands to troubleshoot and verify configuration.

Conclusion and Recommendations

  • Encouragement to try out Boson NetSim for more lab practice.
  • Reminders to subscribe, like, comment, and share.
  • Additional ways to support, including tips via Brave browser.

These notes summarize key concepts covered in the lecture, focusing on VLAN configuration, trunking, and connectivity testing as integral parts of network management and CCNA preparation.

Full transcript