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fastnetmon rebooted - based on one of the latest fastnetmon forks
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Pavel Odintsov 918033cc68 Add debug guide 2015-03-22 13:36:18 +03:00
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fastnetmon.conf Provide ability to specify specific host for sflow collector 2015-03-15 23:11:56 +03:00
fastnetmon.cpp Move common code to library 2015-03-21 14:24:31 +03:00
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ipfix_csv_processor.pl Get full reference IPFIX field formats from RFC and made converter for it 2015-03-22 00:18:43 +03:00
ipfix_fields.csv Get full reference IPFIX field formats from RFC and made converter for it 2015-03-22 00:18:43 +03:00
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README.md

FastNetMon

Author: Pavel Odintsov pavel.odintsov at gmail.com My Twitter

License: GPLv2

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

What can we do? We can detect hosts in our own network with a large amount of packets per second/bytes per second or flow per second incoming or outgoing from certain hosts. And we can call an external script which can notify you, switch off a server or blackhole the client.

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

Build Status Gitter

Features:

  • Can process incoming and outgoing traffic
  • Can trigger block script if certain IP loads network with a large amount of packets per second
  • Can trigger block script if certain IP loads network with a large amount of bytes per second
  • Can trigger block script if certain IP loads network with a large amount of flows per second
  • netmap support (open source; wire speed processing; only Intel hardware NICs or any hypervisor VM type)
  • PF_RING ZC/DNA support (wire speed processing on tens of MPPS but needs license)
  • Can process sFLOW v5
  • Can process NetFlow v5, v9, ipfix
  • Can use PCAP for packet sniffing
  • Can work on mirror/SPAN ports
  • Supports L2TP decapsulation, VLAN untagging and MPLS processing in mirror mode
  • Can work on server/soft-router
  • Can detect DoS/DDoS in 1-2 seconds
  • Tested up to 10GE with 5-6 Mpps on Intel i7 2600 with Intel Nic 82599
  • Complete plugin support

Supported platforms:

  • Linux (Debian 6/7, CentOS 6/7, Ubuntu 12+)
  • FreeBSD 9, 10, 11
  • Mac OS X Yosemite

What is "flow" in FastNetMon terms? It's one or multiple udp, tcp, icmp connections with unique src IP, dst IP, src port, dst port and protocol.

Main program screen image:

Main screen image

Example for cpu load on Intel i7 2600 with Intel X540/82599 NIC on 400 kpps load: Cpu consumption

Example deployment scheme: Network diagramm

Example of first notification:

subject: Myflower Guard: IP xx.xx.xx.xx blocked because incoming attack with power 120613 pps
body:
IP: XX.XX.XX.XX
Initial attack power: 98285 packets per second
Peak attack power: 98285 packets per second
Attack direction: outgoing
Incoming traffic: 62 mbps
Outgoing traffic: 65 mbps
Incoming pps: 66628 packets per second
Outgoing pps: 98285 packets per second
Incoming flows: 16
Outgoing flows: 16
Incoming

UDP
xx.xx.xx.xx:33611 < 216.239.32.109:53 729021 bytes 5927 packets
xx.xx.xx.xx:33611 < 216.239.34.109:53 231609 bytes 1883 packets
xx.xx.xx.xx:33611 < 216.239.36.109:53 728652 bytes 5924 packets
xx.xx.xx.xx:33611 < 216.239.38.109:53 414387 bytes 3369 packets
xx.xx.xx.xx:38458 < 216.239.32.109:53 724347 bytes 5889 packets
xx.xx.xx.xx:38458 < 216.239.34.109:53 222753 bytes 1811 packets
xx.xx.xx.xx:38458 < 216.239.36.109:53 729267 bytes 5929 packets
xx.xx.xx.xx:38458 < 216.239.38.109:53 383514 bytes 3118 packets
xx.xx.xx.xx:42279 < 216.239.32.109:53 687201 bytes 5587 packets
xx.xx.xx.xx:42279 < 216.239.34.109:53 248091 bytes 2017 packets
xx.xx.xx.xx:42279 < 216.239.36.109:53 737508 bytes 5996 packets
xx.xx.xx.xx:42279 < 216.239.38.109:53 321276 bytes 2612 packets
xx.xx.xx.xx:51469 < 216.239.32.109:53 735663 bytes 5981 packets
xx.xx.xx.xx:51469 < 216.239.34.109:53 237267 bytes 1929 packets
xx.xx.xx.xx:51469 < 216.239.36.109:53 735663 bytes 5981 packets
xx.xx.xx.xx:51469 < 216.239.38.109:53 318570 bytes 2590 packets


Outgoing

UDP
xx.xx.xx.xx:33611 > 216.239.32.109:53 531309 bytes 6107 packets
xx.xx.xx.xx:33611 > 216.239.34.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:33611 > 216.239.36.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:33611 > 216.239.38.109:53 531222 bytes 6106 packets
xx.xx.xx.xx:38458 > 216.239.32.109:53 527220 bytes 6060 packets
xx.xx.xx.xx:38458 > 216.239.34.109:53 527133 bytes 6059 packets
xx.xx.xx.xx:38458 > 216.239.36.109:53 527133 bytes 6059 packets
xx.xx.xx.xx:38458 > 216.239.38.109:53 527220 bytes 6060 packets
xx.xx.xx.xx:42279 > 216.239.32.109:53 539052 bytes 6196 packets
xx.xx.xx.xx:42279 > 216.239.34.109:53 539052 bytes 6196 packets
xx.xx.xx.xx:42279 > 216.239.36.109:53 539139 bytes 6197 packets
xx.xx.xx.xx:42279 > 216.239.38.109:53 539139 bytes 6197 packets
xx.xx.xx.xx:51469 > 216.239.32.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.34.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.36.109:53 532701 bytes 6123 packets
xx.xx.xx.xx:51469 > 216.239.38.109:53 532788 bytes 6124 packets

Example of second notification:

subject: Myflower Guard: IP xx.xx.xx.xx blocked because incoming attack with power 120613 pps
body:
IP: xx.zz.xx.1
2014-11-21 08:01:11.419798 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419799 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419816 xx.xx.xx.xx:51469 > 216.239.36.109:53 protocol: udp flags:  size: 87 bytes
2014-11-21 08:01:11.419837 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419838 216.239.34.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419859 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419877 xx.xx.xx.xx:51469 > 216.239.38.109:53 protocol: udp flags:  size: 87 bytes
2014-11-21 08:01:11.419884 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419891 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419906 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419907 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419908 216.239.38.109:53 > xx.xx.xx.xx:42279 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419916 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419917 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419929 216.239.38.109:53 > xx.xx.xx.xx:33611 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419961 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419962 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419963 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes
2014-11-21 08:01:11.419963 216.239.32.109:53 > xx.xx.xx.xx:38458 protocol: udp flags:  size: 123 bytes

To enable sFLOW simply specify IP of server with installed FastNetMon and specify port 6343. To enable netflow simply specify IP of server with installed FastNetMon and specify port 2055.

How I can help project?

  • Test it!
  • Share your experience
  • Share your improvements
  • Test it with different equpment
  • Create feature requests