It runs best on a dedicated VM (Windows or Linux). The interface is powerful but has a 2010-era learning curve. 2. ntopng (Community Edition) Best for: Real-time visibility and edge monitoring.
interface GigabitEthernet0/1 ip flow ingress ip flow egress flow exporter MY_EXPORTER destination 192.168.1.100 (Your monitor’s IP) transport udp 2055 source Loopback0 free netflow monitor
The security investigation tools. You can drill from “High UDP traffic” straight into a flow grid, apply a filter for “Deny” actions, and pivot to a geo-map. No other free tool matches its threat-hunting workflow. It runs best on a dedicated VM (Windows or Linux)