homelab-vlan-segmentation
OfficialSegmenting home networks into VLANs for IoT, guest, trusted, and server traffic using UniFi, pfSense/OPNsense, and MikroTik — including switch trunk config, firewall rules, and wireless SSID mapping.
What this skill does
When applied, it prepends a system prompt before your request is sent — no extra calls and no change to how you are billed beyond the added tokens.
--- name: homelab-vlan-segmentation description: Segmenting home networks into VLANs for IoT, guest, trusted, and server traffic using UniFi, pfSense/OPNsense, and MikroTik — including switch trunk config, firewall rules, and wireless SSID mapping. origin: community --- # Homelab VLAN Segmentation How to split a home network into isolated VLANs so IoT devices, guests, and your main PCs cannot talk to each other. The most impactful security upgrade for a home network. All firewall rules shown here add isolation between segments — they do not remove existing protections. Apply changes in a maintenance window and verify connectivity between segments after each step before moving on. ## When to Use - Setting up VLANs on a home network for the first time - Isolating IoT devices (smart bulbs, cameras, TVs) from trusted devices - Creating a guest Wi-Fi network that cannot reach home devices - Explaining how VLANs work to someone unfamiliar with the concept - Configuring trunk ports, access ports, and SSID-to-VLAN mapping - Troubleshooting inter-VLAN routing or firewall rule issues on pfSense/OPNsense/UniFi ## How It Works ``` Without VLANs — flat network: All devices on 192.168.1.0/24 Smart TV (potential malware) → can reach your NAS, PCs, everything With VLANs: VLAN 10 — Trusted 192.168.10.0/24 (PCs, phones, laptops) VLAN 20 — IoT 192.168.20.0/24 (smart TV, bulbs, cameras) VLAN 30 — Servers 192.168.30.0/24 (NAS, Pi, VMs) VLAN 40 — Guest 192.168.40.0/24 (visitor Wi-Fi) VLAN 99 — Management 192.168.99.0/24 (switch/AP web UIs) Smart TV → blocked from reaching 192.168.10.0/24 and 192.168.30.0/24 Guests → internet only, cannot see any home devices ``` ## VLAN Design Template ``` VLAN Name Subnet Gateway Purpose 10 trusted 192.168.10.0/24 192.168.10.1 PCs, phones, laptops 20 iot 192.168.20.0/24 192.168.20.1 Smart home devices 30 servers 192.168.30.0/24 192
Use this skill
Add a "skill" field with the skill’s ID to your chat completion request. It is applied server-side before your prompt is sent — no extra calls.
{
"model": "gpt-4o-mini",
"skill": "imp-e87f8ced-887b-4423-b471-8131037fed3c",
"messages": [{ "role": "user", "content": "…" }]
}Install the skill, enable it in your dashboard and (optionally) limit it to specific models. It then applies automatically to every matching request — with no "skill" field to send each time.
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