!new! Free Netflow Monitor Today
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
flow monitor MY_MONITOR record netflow ipv4 original-input exporter MY_EXPORTER free netflow monitor
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
The community edition caps at 1 million active flows . That’s fine for branch offices or labs, but not a core data center. 3. ELK Stack (Elasticsearch, Logstash, Kibana) + ElastiFlow Best for: DIY warriors who want unlimited scalability. On Ubiquiti UniFi: System >
On pfSense/OPNsense: Services > NetFlow > Enable + set collector IP. On Ubiquiti UniFi: System > Advanced > NetFlow Export (IP + Port 2055). Before you build a whole stack, point your router’s NetFlow export to a laptop running ntopng in a Docker container :