ntrc: Network TRace Converter
Welcome to the Network TRace
Converter (ntrc) homepage.
This page contains information for general users.
For more information, development versions, CVS tarballs, bug tracking, feature
requests, etc,
you may want to browse our
SourceForge project page. This web page and all of our project
infrastructure are hosted on SourceForge.
We highly appreciate their support. |
ntrc?ntrc, short for Network TRace Converter is a simple console
application that allows to convert to and from a variety of network packet
trace formats, enhancing interoperability of the different tools used.
Written entirely in C, ntrc
is particularly efficient with large
traces.
Formats currently supported and/or planned are described in this table.
ntrc can be compiled and installed under any POSIX operating
system, such as FreeBSD,
NetBSD, OpenBSD, Linux or Solaris, and is known to work
flawlessly
under Cygwin for Microsoft Windows.
It also appears that only minor modifications would be required to get it to
compile under MacOS X/Darwin.
A little work will need to get done but we are
hopeful we'll soon be able to add MacOS X/Darwin to the list of supported platforms.
ntrc is free, and is distributed under the
terms of a
BSD-like license. Furthermore, ntrc aims
at supporting rather obscure formats, which are typically not
included in commercial conversion packages, but are yet essential for
networking
researchers.
No pre-release is currently available for download. Check back in a few weeks. You can browse the CVS tree to check the development status, though.
[Top]| 12/19/2002. | I just started this web page, it looks very much like an "empty shell" right now, but I am in the process of moving my CVS tree to SourceForge and should release a pre-alpha (i.e., very incomplete) version for limited distribution in early 2003. |
The ntrc-announce
mailing list has been set up for people who are interested in receiving
announcements for new ntrc
releases. This list is low volume (one message
every 3-6 months), posting is restricted to the administrators, and we do not
sell/give away email addresses. To subscribe, please visit:
For technical discussions and general discussions about ntrc,
the ntrc-users
mailing-list
is the right place. This list should be much higher volume than
ntrc-announce. Please note that due to the insane amount of e-mail
I already receive, I will not provide any individual assistance by
private communication, so new users should definitely subscribe to this mailing-list,
by visiting the following link:
ntrc currently supports, as
well as those in development, or planned. Clicking on a format type gives you a
description of the format.
| Format | Typical extensions | Vendor | Encoder | Decoder | Status |
| FR | .fr,
.fr.enc, .fr.enc.gz,
.fr.gz |
NLANR traffic traces | Yes | Yes | Implemented and tested |
| ns-2 TrafficTrace | None | ns-2 network simulator | Yes | Yes | Implemented and tested |
| Time-Sequenced Headers (TSH) | .tsh,
.tsh.gz |
NLANR traffic traces | Yes | Yes | Implemented and tested |
| FR+ | .fr+,
.fr+.enc, .fr+.enc.gz,
.fr+.gz |
NLANR traffic traces | Yes | Yes | Implemented, under test |
| Coral/oc3mon (CRL) | .crl, .crl.enc,
.crl.gz, .crl.enc.gz
| Coral/NLANR traffic traces | Yes | Yes | In development |
| Sniffer | .prn (?)
| Network Associates | Yes | Planned | In development |
| tcpdump | .txt, none
| tcpdump.org | Yes | Yes | Planned |
.gz means that the trace file is compressed with
gzip. ntrc cannot directly handle gzip'd
files, but it is easy to first decompress the trace before processing it with
ntrc.
ntrc to support, you basically
have two options: either you write your own code and send it to me, or you ask me
to write a module for it.
style(9) on BSD systems, and it must be readable on a
80-column terminal (that's what I use). Your code must also comply to a
BSD-license, or weaker. For instance, GPL is unacceptable, because it
imposes to redistribute the source code, and I do not want to put that
restriction on the package. Conversely, BSD-lite, or Public Domain, or MIT
licenses are perfectly acceptable.
If you can meet both requirements, I am happy to
work with you to include your module in the base distribution.
ntrc. If that does
not sound reasonable, you are back to finding someone else who wants to write
code for you.
© Nicolas
Christin <nicolasc@sourceforge.net>, 2002.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the
documentation and/or other materials provided with the
distribution.
3. All advertising materials mentioning features or use of this
software
must display the following acknowledgement:
This product includes software developed by Nicolas
Christin.
4. The name of the author may not be used to endorse or
promote products
derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS
IS" AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
[Top]