Back to Work/pfSense Firewall & Network Security Lab
Networking / Security Lab2026

pfSense Firewall & Network Security Lab

A practical network security lab focused on firewall configuration, traffic filtering, NAT, and secure network design.

pfSenseFirewall RulesNATDHCPNetwork SecurityVirtualization
Overview

What is this project?

This project is based on practical network security lab work using pfSense. The goal is to understand how firewalls protect networks, how rules are created, and how traffic can be filtered between different network segments.

Project Type

Networking / Security Lab

Year

2026

Status

Lab Project

My Role

I worked on the firewall configuration, network setup, rule testing, troubleshooting, documentation, and explanation of the security logic used in the lab.

The Challenge

What made this difficult?

The main challenge was understanding how firewall rules affect real network traffic. Rule order, NAT behavior, interface configuration, and troubleshooting all require careful testing. This project helped me connect theory with real security configuration practice.

Features

What I Built

Firewall rule configuration

Network traffic filtering

NAT and interface setup

Basic secure network segmentation

Troubleshooting and testing

Lab documentation

Visual

Project Preview

NETWORK TOPOLOGYWANpfSenseFIREWALLWorkstationServerDMZ HostUNTRUSTEDLAN / DMZ
FIREWALL RULE STACKPASSLAN→ WANAllow outboundBLOCKWAN→ LANBlock unsolicitedPASSLAN→ DMZAllow internal accessPASSDMZ→ WANAllow services out4 RULES CONFIGURED
NAT / PORT FORWARDExternal IPpfSenseNAT EngineInternal HostPort 443Port 8443ADDRESS TRANSLATIONWAN:443LAN:8443
Outcome

What I Learned

This project strengthened my understanding of practical network security and gave me hands-on experience with firewall-based protection, which is directly related to my cybersecurity and network engineering career path.