Fast SNMP Scanner.

onesixtyone takes a different approach to SNMP scanning. It takes advantage of the fact that SNMP is a connectionless protocol and sends all SNMP requests as fast as it can. Then the scanner waits for responses to come back and logs them, in a fashion similar to Nmap ping sweeps. By default onesixtyone waits for 10 milliseconds between sending packets, which is adequate for 100MBs switched networks. The user can adjust this value via the -w command line option. If set to 0, the scanner will send packets as fast as the kernel would accept them, which may lead to packet drop.

Flow collector, enricher and visualizer.
This program receives flows (currently Netflow/IPFIX and sFlow), enrice them with interface names (using SNMP), geo information (using MaxMind), and exports them to Kafka, then ClickHouse. It also exposes a web interface to browse the collected data.

This is a pure-Python, open source and free implementation of SNMP agents simulator distributed under 2-clause BSD license.

Observium is an autodiscovering SNMP based network monitoring platform written in PHP which includes support for a wide range of network hardware and operating systems including Cisco, Windows, Linux, HP, Dell, FreeBSD, Juniper, Brocade, Netscaler, NetApp and many more.