I Built a Free, Self-Hosted SNMP Toolkit — Now With Real-Time WebSocket Push

If you've ever worked with SNMP — testing NMS integrations, debugging trap handlers, or validating MIB structures — you know the pain. You end up juggling Net-SNMP CLI commands you can never remember, snmptrapd configs scattered everywhere, and a $500 MIB browser that still looks like it was designed in 2003. I built Trishul SNMP to fix that. One Docker container. Browser-based. Free. This post covers what's new in v1.2.4 — the biggest update yet — and why I built it this way. What Is Trishul SNMP? It's a self-hosted SNMP dev toolkit that combines five tools into one clean web UI: What Instead of SNMP Simulator (UDP agent) snmpsim + CLI config Walk & Parse → JSON snmpwalk + manual OID lookup Trap Sender + Receiver snmptrap + snmptrapd MIB Browser (tree view) iReasoning MIB Browser ($500+) MIB Manager (upload/validate) Text editor + manual dependency hell Stack: Python 3.11, FastAPI, pysnmp, pysmi, Bootstrap 5, Docker. # Install in one command curl -fsSL https://raw.githubusercontent.co