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FastNetMon Community Edition
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
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
- Official site
- Mailing list
- Slack
- FastNetMon Advanced, commercial edition
- If you want add an idea
- 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
Running Fastnetmon
Supported platforms
- Linux (Debian 6/7/8/9, CentOS 6/7, Ubuntu 12.04, 14.04, 16.04)
- FreeBSD 9, 10, 11: offciail port.
- Mac OS X Yosemite (only 1.1.2 release)
Supported architectures
- x86 64 bit (recommended)
- x86 32 bit
Hardware requirements
- At least 1 GB of RAM for compilation purposes
Router integration instructions
Distributions supported
- We are part of the CloudRouter distribution
- We are part in the official FreeBSD ports collection
- Docker image
- Automatic install script for Debian/Ubuntu/CentOS/Fedora/Gentoo
- Automatic install script for Mac OS X
- Manual install on Slackware
- Manual install for VyOS
Screenshoots
Main program screenshot:
Example CPU load on Intel i7 2600 with Intel X540/82599 NIC at 400 kpps load:
Example deployment scheme:
Example of notification email about detected attack.
Author: Pavel Odintsov