[itfourall]

Hey HN

This tool was born out of frustration with silent network issues like broadcast storms, misconfigured switches, and ARP spoofing that go undetected until users start complaining.

BroadcastDetector plugs into a trunk port, listens to all VLANs, and spots anomalies in real time. It’s lightweight (Python + tcpdump), doesn’t need any fancy hardware, and stores everything locally – ideal for sysadmins and network engineers who want visibility without deploying full-blown NMS systems.

I’m especially interested in your thoughts on: - How you currently detect Layer 2 issues (if at all) - Whether you'd prefer full packet captures or metadata - Other tools you'd recommend for L2 monitoring

Would love your feedback – happy to open up ideas or collaborations if it helps others fighting with broadcast loops and spoofing chaos.