HomeLab: Subnetting and VLANs with PfSense

Introduction

In a digital age where network speed and security are paramount, I recently elevated my on-premises network infrastructure to new standards of excellence. Upgrading to a 10 gigabit connection, combined with strategic subnetting and the introduction of VLANs via PfSense, has marked a quantum leap in the management and security of my network.

10 Gigabit Upgrade: A Leap in Network Speed

Implementing a 10 gigabit connection provided the bandwidth needed to support data-intensive tasks. This improvement required careful planning of the network topology and hardware upgrades to support the high speeds, ensuring that each component was optimized for maximum throughput.

Strategic Subnetting for Effective Management

Subnetting has been crucial to efficiently organizing and managing my growing network. By dividing my network into smaller subnets, I was able to reduce broadcast traffic, improve network performance, and increase security. Each subnet was designed to group devices with similar communication requirements together, making it easier to manage and monitor.

PfSense: Centralizing DHCP and Firewall

With PfSense, I set up a dynamic DHCP server, automatically assigning IP addresses and managing network configurations for connected devices. The firewall integrated into PfSense allowed me to define detailed rules, filtering traffic and protecting the network from unauthorized access and external threats.

Implementing VLANs for Advanced Segmentation

VLANs were implemented to further segment the network, logically isolating groups of devices and services to improve security and efficiency. This allowed for the creation of dedicated network zones for different departments or device types, limiting traffic to only the necessary network and reducing potential attack vectors.

Conclusions

The evolution of my local network with the adoption of a 10 gigabit connection, the application of subnetting techniques, and the use of PfSense to manage DHCP, firewall, and VLANs, has transformed the infrastructure into a highly performant and secure system. These improvements not only optimize the use of network resources, but also establish a solid foundation for future technological and operational developments.