wireshark.org protocol dissector with Osmocom additions
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John Thacker 9eeffdc5eb
Fix item length in ASN.1 templates too
3 months ago
.github github: call reworked macos-setup-brew.sh with options 4 months ago
.gitlab/issue_templates Gitlab issue template: Info how to upload a file 7 months ago
.tx Transifex: Fix our Debian/.po path. 10 months ago
capture Remove wspcap.h and use config.h instead 4 months ago
cmake/modules Docbook: Reorganize our guide directories 4 months ago
doc doc: Update header preamble for dissector skeleton 4 months ago
docbook WSDG: Minor logging documentation enhancements 4 months ago
epan Fix item length in ASN.1 templates too 3 months ago
extcap sshdump: add capability to use doas on remote host 4 months ago
fix FIX: fix spelling typo found by lintian 7 years ago
fuzz Move ui/cmdarg_err.[ch] to wsutil 4 months ago
include Enable rpathification and working relocation on Linux (take 3) 4 months ago
macosx-support-lib-patches macos-setup.sh: More GTK and minimum supported version cleanups 5 years ago
packaging macOS: Update our extra package versions. 4 months ago
plugins Change some `wmem_packet_scope()` to `pinfo->pool` 3 months ago
randpkt_core wiretap: have wtap_dump_close() provide a "needs to be reloaded" indication. 1 year ago
resources Diameter 3GPP: update some Rx related AVPs 4 months ago
test Sharkd: Add column header labels to the "status" output 4 months ago
tools Fix more warnings from tools/check_typed_item_calls.py 4 months ago
ui Qt: Revert to our function for displaying bit speed with units 3 months ago
wiretap Update comments in `wiretap/file_access.c` 4 months ago
writecap Add remaining header files to Doxygen 2 years ago
wsutil Draft: wslog: simplify log domain tokenize 3 months ago
.cirrus.yml cirrus: remove FreeBSD 11.4. 3 years ago
.editorconfig Git+CMake: Add support for CMake presets. 1 year ago
.gitattributes tools: Port make-version.pl to Python 11 months ago
.gitignore GUI: Ship authors as a Qt resource file 5 months ago
.gitlab-ci.yml GitLab CI: Run our macOS tests in parallel. 4 months ago
.mailmap .mailmap: Fix Huang Qiangxiong Name 4 months ago
.travis.yml CI: Don't run xcode-select. 2 years ago
AUTHORS [Automatic update for 2023-02-12] 4 months ago
CMakeGraphVizOptions.cmake cmake: Add CMakeGraphVizOptions.cmake to improve the generated layout. 5 years ago
CMakeLists.txt CMake: Allow arm64 architecure in Windows 4 months ago
CMakeListsCustom.txt.example Demonstrate `CUSTOM_TSHARK_TAP_SRC` for CMake 6 months ago
CMakeOptions.txt MinGW: Enable -Werror by default 5 months ago
CODE_OF_CONDUCT.adoc Add a code of conduct. 2 years ago
CONTRIBUTING.md Add an initial CONTRIBUTING file. 2 years ago
COPYING Update license file structure and GUI display 11 months ago
ChangeLog Build: 3.7.2. 11 months ago
ConfigureChecks.cmake wsutil/inet_addr: Refactor to use C99/POSIX types 1 year ago
INSTALL Fix typo in INSTALL 10 months ago
NEWS [Automatic update for 2023-01-29] 4 months ago
README.DECT Fix some spellings. 11 months ago
README.aix HTTPS In More Places, update some URLs. 4 years ago
README.bsd docs: Remove references to configure 1 year ago
README.hpux docs: Remove references to configure 1 year ago
README.linux Note that newer versions of various distributions won't have these problems. 6 years ago
README.macos Qt6: Adapt various docs 10 months ago
README.md Make Perl optional. 11 months ago
README.msys2 MSYS2: Update README 4 months ago
README.windows Windows: Get rid of textify.ps1. 4 years ago
Vagrantfile vagrant: Bump to Ubunutu 22.04, RAM to 8GB 6 months ago
WiresharkConfig.cmake.in plugins.example: Make installation relocatable 1 year ago
appveyor.yml appveyor: We no longer require Perl. 11 months ago
capinfos.c Move ui/cmdarg_err.[ch] to wsutil 4 months ago
capture_opts.c Move ui/filter_files.[ch] to wsutil 4 months ago
capture_opts.h capture: Stop extcaps before dumpcap 10 months ago
captype.c Move ui/cmdarg_err.[ch] to wsutil 4 months ago
cfile.c Remove editor modelines and .editorconfig exceptions from root files 1 year ago
cfile.h Convert capture file regex search to PCRE2. 11 months ago
cli_main.c cli-main.c: free() argv's memory 3 years ago
cli_main.h Add remaining header files to Doxygen 2 years ago
cmake_uninstall.cmake.in cmake: fix the uninstall script. 2 years ago
cmakeconfig.h.in Add a #define HAVE_MSYSTEM and use it 4 months ago
dftest.c Move ui/cmdarg_err.[ch] to wsutil 4 months ago
doxygen.cfg.in Windows: Use SpeexDSP binary package 6 months ago
dumpcap.c Move ui/clopts_common.[ch] to wsutil 4 months ago
editcap.c Move ui/clopts_common.[ch] to wsutil 4 months ago
enterprises.tsv [Automatic update for 2023-02-12] 4 months ago
extcap.c Move ui/version_info.[ch] to wsutil 4 months ago
extcap.h extcap: Fix of handling default values 4 months ago
extcap_parser.c Qt+extcap: Add editable extcap selectors. 8 months ago
extcap_parser.h Qt+extcap: Add editable extcap selectors. 8 months ago
file.c Qt: Ensure that add frame comments trigger recoloring, count updates 4 months ago
file.h Qt: Ensure that add frame comments trigger recoloring, count updates 4 months ago
file_packet_provider.c regex: Prefer C99/POSIX types 2 years ago
fileset.c Replace g_strdup_printf() with ws_strdup_printf() 1 year ago
fileset.h Add remaining header files to Doxygen 2 years ago
frame_tvbuff.c Remove editor modelines and .editorconfig exceptions from root files 1 year ago
frame_tvbuff.h Remove editor modelines and .editorconfig exceptions from root files 1 year ago
globals.h Add remaining header files to Doxygen 2 years ago
manuf [Automatic update for 2023-02-12] 4 months ago
manuf.tmpl Add Perfectek vendor code 9 months ago
mergecap.c Move ui/clopts_common.[ch] to wsutil 4 months ago
mmdbresolve.c mmdbresolve: check the return value of malloc 4 years ago
pytest.ini test: enable parallelism by default for pytest 4 years ago
randpkt.c Move ui/clopts_common.[ch] to wsutil 4 months ago
rawshark.c Move ui/clopts_common.[ch] to wsutil 4 months ago
reordercap.c Move ui/cmdarg_err.[ch] to wsutil 4 months ago
ringbuffer.c Remove wspcap.h and use config.h instead 4 months ago
ringbuffer.h Remove editor modelines and .editorconfig exceptions from root files 1 year ago
services [Automatic update for 2023-01-01] 5 months ago
sharkd.c Move ui/filter_files.[ch] to wsutil 4 months ago
sharkd.h Add remaining header files to Doxygen 2 years ago
sharkd_daemon.c Move ui/version_info.[ch] to wsutil 4 months ago
sharkd_session.c Sharkd: Fix types of prev_frame and ref_frame 3 months ago
sync_pipe.h Add a ws_posix_compat.h header 1 year ago
sync_pipe_write.c Replace g_assert() with ws_assert() 2 years ago
text2pcap.c Move ui/cmdarg_err.[ch] to wsutil 4 months ago
text2pcap.h Add remaining header files to Doxygen 2 years ago
tfshark.c tshark: Support multiple -j and -J options, including mixed 4 months ago
tshark.c tshark: Support multiple -j and -J options, including mixed 4 months ago
vagrant_build.sh Vagrant: Fix provisioning script 4 years ago
wireshark.dox Switch the Doxygen API reference build to CMake. 5 years ago
wireshark.pc.in CMake: Deduplicate some version variables. 1 year ago
wka wka: Add Cisco ACI gleaning src MAC 3 years ago
ws_version.h.in plugins: Minor interface improvement 5 years ago


General Information

Wireshark is a network traffic analyzer, or "sniffer", for Linux, macOS, *BSD and other Unix and Unix-like operating systems and for Windows. It uses Qt, a graphical user interface library, and libpcap and npcap as packet capture and filtering libraries.

The Wireshark distribution also comes with TShark, which is a line-oriented sniffer (similar to Sun's snoop or tcpdump) that uses the same dissection, capture-file reading and writing, and packet filtering code as Wireshark, and with editcap, which is a program to read capture files and write the packets from that capture file, possibly in a different capture file format, and with some packets possibly removed from the capture.

The official home of Wireshark is https://www.wireshark.org.

The latest distribution can be found in the subdirectory https://www.wireshark.org/download


The Wireshark project builds and tests regularly on the following platforms:

  • Linux (Ubuntu)
  • Microsoft Windows
  • macOS / {Mac} OS X

Official installation packages are available for Microsoft Windows and macOS.

It is available as either a standard or add-on package for many popular operating systems and Linux distributions including Debian, Ubuntu, Fedora, CentOS, RHEL, Arch, Gentoo, openSUSE, FreeBSD, DragonFly BSD, NetBSD, and OpenBSD.

Additionally it is available through many third-party packaging systems such as pkgsrc, OpenCSW, Homebrew, and MacPorts.

It should run on other Unix-ish systems without too much trouble.

In some cases the current version of Wireshark might not support your operating system. This is the case for Windows XP, which is supported by Wireshark 1.10 and earlier. In other cases the standard package for Wireshark might simply be old. This is the case for Solaris and HP-UX.

Python 3 is needed to build Wireshark. AsciiDoctor is required to build the documentation, including the man pages. Perl and flex are required to generate some of the source code.

You must therefore install Python 3, AsciiDoctor, and GNU "flex" (vanilla "lex" won't work) on systems that lack them. You might need to install Perl as well.

Full installation instructions can be found in the INSTALL file and in the Developer's Guide at https://www.wireshark.org/docs/wsdg_html_chunked/

See also the appropriate README.OS files for OS-specific installation instructions.


In order to capture packets from the network, you need to make the dumpcap program set-UID to root or you need to have access to the appropriate entry under /dev if your system is so inclined (BSD-derived systems, and systems such as Solaris and HP-UX that support DLPI, typically fall into this category). Although it might be tempting to make the Wireshark and TShark executables setuid root, or to run them as root please don't. The capture process has been isolated in dumpcap; this simple program is less likely to contain security holes and is thus safer to run as root.

Please consult the man page for a description of each command-line option and interface feature.

Multiple File Types

Wireshark can read packets from a number of different file types. See the Wireshark man page or the Wireshark User's Guide for a list of supported file formats.

Wireshark can transparently read compressed versions of any of those files if the required compression library was available when Wireshark was compiled. Currently supported compression formats are:

  • GZIP
  • ZSTD
  • LZ4

You can disable zlib support by running cmake -DENABLE_ZLIB=OFF.

Although Wireshark can read AIX iptrace files, the documentation on AIX's iptrace packet-trace command is sparse. The iptrace command starts a daemon which you must kill in order to stop the trace. Through experimentation it appears that sending a HUP signal to that iptrace daemon causes a graceful shutdown and a complete packet is written to the trace file. If a partial packet is saved at the end, Wireshark will complain when reading that file, but you will be able to read all other packets. If this occurs, please let the Wireshark developers know at wireshark-dev@wireshark.org; be sure to send us a copy of that trace file if it's small and contains non-sensitive data.

Support for Lucent/Ascend products is limited to the debug trace output generated by the MAX and Pipline series of products. Wireshark can read the output of the wandsession, wandisplay, wannext, and wdd commands.

Wireshark can also read dump trace output from the Toshiba "Compact Router" line of ISDN routers (TR-600 and TR-650). You can telnet to the router and start a dump session with snoop dump.

CoSine L2 debug output can also be read by Wireshark. To get the L2 debug output first enter the diags mode and then use create-pkt-log-profile and apply-pkt-lozg-profile commands under layer-2 category. For more detail how to use these commands, you should examine the help command by layer-2 create ? or layer-2 apply ?.

To use the Lucent/Ascend, Toshiba and CoSine traces with Wireshark, you must capture the trace output to a file on disk. The trace is happening inside the router and the router has no way of saving the trace to a file for you. An easy way of doing this under Unix is to run telnet <ascend> | tee <outfile>. Or, if your system has the "script" command installed, you can save a shell session, including telnet, to a file. For example to log to a file named tracefile.out:

$ script tracefile.out
Script started on <date/time>
$ telnet router
..... do your trace, then exit from the router's telnet session.
$ exit
Script done on <date/time>

Name Resolution

Wireshark will attempt to use reverse name resolution capabilities when decoding IPv4 and IPv6 packets.

If you want to turn off name resolution while using Wireshark, start Wireshark with the -n option to turn off all name resolution (including resolution of MAC addresses and TCP/UDP/SMTP port numbers to names) or with the -N mt option to turn off name resolution for all network-layer addresses (IPv4, IPv6, IPX).

You can make that the default setting by opening the Preferences dialog using the Preferences item in the Edit menu, selecting "Name resolution", turning off the appropriate name resolution options, and clicking "OK".


Wireshark can do some basic decoding of SNMP packets; it can also use the libsmi library to do more sophisticated decoding by reading MIB files and using the information in those files to display OIDs and variable binding values in a friendlier fashion. CMake will automatically determine whether you have the libsmi library on your system. If you have the libsmi library but do not want Wireshark to use it, you can run cmake with the -DENABLE_SMI=OFF option.

How to Report a Bug

Wireshark is under constant development, so it is possible that you will encounter a bug while using it. Please report bugs at https://gitlab.com/wireshark/wireshark/-/issues. Be sure you enter into the bug:

  1. The complete build information from the "About Wireshark" item in the Help menu or the output of wireshark -v for Wireshark bugs and the output of tshark -v for TShark bugs;

  2. If the bug happened on Linux, the Linux distribution you were using, and the version of that distribution;

  3. The command you used to invoke Wireshark, if you ran Wireshark from the command line, or TShark, if you ran TShark, and the sequence of operations you performed that caused the bug to appear.

If the bug is produced by a particular trace file, please be sure to attach to the bug a trace file along with your bug description. If the trace file contains sensitive information (e.g., passwords), then please do not send it.

If Wireshark died on you with a 'segmentation violation', 'bus error', 'abort', or other error that produces a UNIX core dump file, you can help the developers a lot if you have a debugger installed. A stack trace can be obtained by using your debugger ('gdb' in this example), the wireshark binary, and the resulting core file. Here's an example of how to use the gdb command 'backtrace' to do so.

$ gdb wireshark core
(gdb) backtrace
..... prints the stack trace
(gdb) quit

The core dump file may be named "wireshark.core" rather than "core" on some platforms (e.g., BSD systems). If you got a core dump with TShark rather than Wireshark, use "tshark" as the first argument to the debugger; the core dump may be named "tshark.core".


Wireshark is distributed under the GNU GPLv2. See the file COPYING for the full text of the license. When in doubt the full text is the legally binding part. These notes are just to make it easier for people that are not familiar with the GPLv2.

There are no restrictions on its use. There are restrictions on its distribution in source or binary form.

Most parts of Wireshark are covered by a "GPL version 2 or later" license. Some files are covered by different licenses that are compatible with the GPLv2.

As a notable exception, some utilities distributed with the Wireshark source are covered by other licenses that are not themselves directly compatible with the GPLv2. This is OK, as only the tools themselves are licensed this way, the output of the tools is not considered a derived work, and so can be safely licensed for Wireshark's use. An incomplete selection of these tools includes:

  • the pidl utility (tools/pidl) is licensed under the GPLv3+.

Parts of Wireshark can be built and distributed as libraries. These parts are still covered by the GPL, and NOT by the Lesser General Public License or any other license.

If you integrate all or part of Wireshark into your own application, then that application must be released under a license compatible with the GPL.


There is no warranty, expressed or implied, associated with this product. Use at your own risk.

Gerald Combs gerald@wireshark.org

Gilbert Ramirez gram@alumni.rice.edu

Guy Harris gharris@sonic.net