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README.md

FastNetMon

FastNetMon - A high performance DoS/DDoS load analyzer built on top of multiple packet capture engines (NetFlow, IPFIX, sFLOW, SnabbSwitch, netmap, PF_RING, PCAP).

What can we do? We can detect hosts in our networks sending or receiving large volumes of packets/bytes/flows per second. We can call an external script to notify you, switch off a server, or blackhole the client.

To enable sFLOW, simply specify IP of the server running FastNetMon and specify (configurable) port 6343 To enable netflow, simply specify IP of the server running FastNetMon and specify (configurable) port 2055

Why did we write this? Because we can't find any software for solving this problem in the open source world!

What is a "flow" in FastNetMon terms? It's one or multiple UDP, TCP, or ICMP connections with unique src IP, dst IP, src port, dst port, and protocol.

License: GPLv2

Project

Mailing list
Release Notes
Chat: #fastnetmon at irc.freenode.net web client
Detailed reference in Russian: link

Supported packet capture engines

NetFlow v5, v9
IPFIX
v4 (since 1.1.3), v5
Port mirror/SPAN capture with PF_RING (with ZC/DNA mode support need license), SnabbSwitch, NETMAP and PCAP

You can check out the comparison table for all available packet capture engines.

Complete integration with following vendors

A10 Networks Thunder TPS Appliance integration
MikroTik RouterOS Please use only recent versions of RouterOS!

Travis status:

Features

Complete BGP Flow Spec support, RFC 5575
Process and distinguish incoming and/or outgoing traffic
Trigger block/notify script if an IP exceeds defined thresholds for packets/bytes/flows per second
Thresholds can be configured per-subnet with the hostgroups feature
Announce blocked IPs via BGP to routers with ExaBGP
GoBGP integration for unicast IPv4 announcements (you need build support manually).
Full integration with Graphite and InfluxDB
API (you need build support manually)
Redis integration
MongoDB integration
Deep packet inspection for attack traffic
netmap support (open source; wire speed processing; only Intel hardware NICs or any hypervisor VM type)
SnabbSwitch support (open source, very flexible, LUA driven, very-very-very fast)
Filter NetFlow v5 flows or sFLOW packets with LUA scripts (useful for excluding particular ports)
Supports L2TP decapsulation, VLAN untagging and MPLS processing in mirror mode
Works on server/soft-router
Detects DoS/DDoS in as little as 1-2 seconds
Tested up to 10Gb with 12 Mpps on Intel i7 3820 with Intel NIC 82599
Complete plugin support
Captures attack fingerprints in PCAP format
Complete support for most popular attack types