KOBI LAN Design Project

A secure LAN (Local Area Network) infrastructure designed for a small/medium-sized business (SME) using Cisco Packet Tracer. Prepared as part of a Computer Networks course project.

About the Project

This project presents an end-to-end network design that segments a business's network infrastructure using VLANs, secures it with a firewall and access control lists, and provides core network services (DHCP, DNS, HTTP). All theoretical grounding for the design is based on Kurose & Ross's Computer Networking: A Top-Down Approach (8th ed.).

Network Architecture

• Router: Cisco 2911 — router-on-a-stick configuration for inter-VLAN routing
• Firewall: Cisco ASA 5506 — security inspection of network traffic
• VLANs: Department/function-based network segmentation
• Extended ACLs: Security policies restricting access between VLANs and services
• DHCP Relay: IP address distribution to different VLANs from a centralized DHCP server
• DNS/HTTP Services: Basic name resolution and web service within the network

All components have been tested and verified working in the Packet Tracer environment.

Repository Contents

File	Description
NetworkKobiProject.pkt	Cisco Packet Tracer project/topology file
NetworkProjectReport.pdf	Project report describing the design, configurations, and test results
PingTest.png	Screenshot of end-to-end connectivity test
access-list.png	Screenshot of Extended ACL configuration
ip route.png	Screenshot of the routing table
trunk interfaces.png	Screenshot of trunk interface configuration

How to Open

1. Cisco Packet Tracer must be installed.
2. Open NetworkKobiProject.pkt in Packet Tracer.
3. See NetworkProjectReport.pdf for detailed configuration steps, commands, and rationale.

Reference

Kurose, J. F., & Ross, K. W. Computer Networking: A Top-Down Approach (8th ed.).