Cisco Enterprise Network Lab

📥 How to Download the Lab To run this lab in Cisco Packet Tracer:

Click the green Code button at the top of this page.

Select Download ZIP.

Extract the folder and open the .pkt file in Packet Tracer (Version 8.2+ recommended).

Project Overview

This project demonstrates a fully functional enterprise network designed in Cisco Packet Tracer. It features a hardened Branch Office connected to an HQ Data Center, focusing on security, scalability, and redundancy.

Key Technical Features

• Layer 2 Segmentation: Configured VLANs 10 (Staff) and 20 (Guest) to isolate sensitive traffic.
• Inter-VLAN Routing: Implemented Router-on-a-Stick using sub-interfaces to bridge communication between subnets.
• Security (ACLs): Developed Standard and Extended Access Control Lists to block Guest access to the management plane and Staff devices.
• Dynamic Routing: Utilized OSPF to manage routing tables across the "Square" topology.
• Edge Services: Configured NAT/PAT on the HQ Gateway to provide internet access to private subnets.

Verification & Testing

• SSH Management: Staff devices successfully access the router via SSH, while Guest attempts are "Connection Refused" by ACLs.
• Connectivity: Verified end-to-end communication between the Branch and the HQ Server.