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3 netsniff-ng - the packet sniffing beast
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11 netsniff-ng is a free, performant |'O\ /O'| _.<0101011>--
12 Linux network analyzer and > `' '` < /
13 networking toolkit. ) ,.==., ( |
17 Web: http://netsniff-ng.org \__.=|___E
19 The gain of performance is reached by zero-copy mechanisms, so that on packet
20 reception and transmission the kernel does not need to copy packets from kernel
21 space to user space and vice versa.
23 For this purpose, the netsniff-ng toolkit [1] is libpcap independent, but
24 nevertheless supports the pcap file format for capturing, replaying and
25 performing offline-analysis of pcap dumps. Furthermore, we are focussing on
26 building a robust and clean analyzer and utilities that complete netsniff-ng as
27 a support for network development, debugging or network reconnaissance. (Note:
28 libpcap starting from 1.0.0 now also supports zero-copy, but for capturing only)
30 The netsniff-ng toolkit currently consists of the following utilities:
32 * netsniff-ng: a zero-copy analyzer, pcap capturing and replaying tool
33 * trafgen: a high performance zero-copy network packet generator
34 * ifpps: a top-like kernel networking and system statistics tool
35 * curvetun: a lightweight curve25519-based multiuser IP tunnel
36 * ashunt: an autonomous system trace route and ISP testing utility
37 * flowtop: a top-like netfilter connection tracking tool
38 * bpfc: a tiny Berkeley Packet Filter compiler supporting Linux extensions
40 Have a look at the Documentation/ folder for further information.
42 The netsniff-ng toolkit is an Open Source project covered by the GNU General
43 Public License. For any questions or feedback about netsniff-ng you are welcome
44 to leave us a message to <workgroup@netsniff-ng.org> or to our mailing list
45 at <netsniff-ng@googlegroups.com> (Note: you have to register first). This
46 project is purely non-commercial and will always stay that way! The current
47 project status can be considered as "working". In general, all tools have been
48 tested by us to a great extend including their command-line options. In fact,
49 many of our tools are used in production systems. However, we give no guarantee
50 that our tools are free of bugs! If you spot some issues, contact us as
51 described in REPORTING-BUGS.
53 Also, have a look at our FAQ [2] for answering your questions. Furthermore,
54 we have a development blog [3] where we sometimes drop some interesting things
55 or news for the outside world! A public repository of the old stable releases
56 can be found here [4].
60 [1] http://netsniff-ng.org/
61 [2] http://netsniff-ng.org/faq.html
62 [3] http://dev.netsniff-ng.org/
63 [4] http://pub.netsniff-ng.org/