Home Network Audit

Why This Project

Network troubleshooting is a core help desk skill. Before diagnosing user network problems, you need to understand what a healthy network looks like — and what a vulnerable one looks like. I audited my own home network to build this foundational awareness.

Phase 1: Device Discovery

Used Nmap to scan the local subnet and identify every connected device:

Phase 2: Risk Identification

Cross-referenced each device and flagged three risk categories:

• Router still using default admin credentials (critical)
• 3 IoT devices (TV, thermostat, bulbs) on same network as PCs
• 1 unknown device identified as a neighbor's phone (misconfigured guest network)
• UPnP enabled on router — unnecessary exposure

Phase 3: Remediations Applied

• Changed router admin password to a 20-character random passphrase
• Created a separate IoT VLAN (192.168.10.0/24) and moved all smart devices to it
• Disabled UPnP and remote management on router
• Fixed guest network isolation settings

Wireshark Capture

Ran a 10-minute Wireshark capture to identify anomalous traffic. Observed the smart TV making periodic connections to Samsung telemetry servers — expected behavior, but documented as a baseline.

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