-
+ic
=head1 NAME
tshark - Dump and analyze network traffic
=head1 SYNOPSIS
B<tshark>
+S<[ B<-2> ]>
S<[ B<-a> E<lt>capture autostop conditionE<gt> ] ...>
S<[ B<-b> E<lt>capture ring buffer optionE<gt>] ...>
-S<[ B<-B> E<lt>capture buffer size (Win32 only)E<gt> ] >
+S<[ B<-B> E<lt>capture buffer sizeE<gt> ] >
S<[ B<-c> E<lt>capture packet countE<gt> ]>
S<[ B<-C> E<lt>configuration profileE<gt> ]>
S<[ B<-d> E<lt>layer typeE<gt>==E<lt>selectorE<gt>,E<lt>decode-as protocolE<gt> ]>
S<[ B<-f> E<lt>capture filterE<gt> ]>
S<[ B<-F> E<lt>file formatE<gt> ]>
S<[ B<-h> ]>
-S<[ B<-i> E<lt>capture interfaceE<gt>|- ]>
-S<[ B<-K> E<lt>keytabE<gt> ]>
+S<[ B<-H> E<lt>input hosts fileE<gt> ]>
+S<[ B<-i> E<lt>capture interfaceE<gt>|- ]>
+S<[ B<-I> ]>
+S<[ B<-K> E<lt>keytabE<gt> ]>
S<[ B<-l> ]>
S<[ B<-L> ]>
S<[ B<-n> ]>
S<[ B<-N> E<lt>name resolving flagsE<gt> ]>
S<[ B<-o> E<lt>preference settingE<gt> ] ...>
+S<[ B<-O> E<lt>protocolsE<gt> ]>
S<[ B<-p> ]>
+S<[ B<-P> ]>
S<[ B<-q> ]>
S<[ B<-r> E<lt>infileE<gt> ]>
S<[ B<-R> E<lt>read (display) filterE<gt> ]>
S<[ B<-s> E<lt>capture snaplenE<gt> ]>
-S<[ B<-S> ]>
-S<[ B<-t> ad|a|r|d|e ]>
+S<[ B<-S> E<lt>separatorE<gt> ]>
+S<[ B<-t> ad|a|r|d|dd|e ]>
S<[ B<-T> pdml|psml|ps|text|fields ]>
S<[ B<-v> ]>
S<[ B<-V> ]>
S<[ B<-w> E<lt>outfileE<gt>|- ]>
+S<[ B<-W> E<lt>file format optionE<gt>]>
S<[ B<-x> ]>
S<[ B<-X> E<lt>eXtension optionE<gt>]>
S<[ B<-y> E<lt>capture link typeE<gt> ]>
S<[ B<-z> E<lt>statisticsE<gt> ]>
S<[ E<lt>capture filterE<gt> ]>
+B<tshark>
+B<-G> [fields|fields2|fields3|protocols|values|decodes|defaultprefs|currentprefs]
+
=head1 DESCRIPTION
B<TShark> is a network protocol analyzer. It lets you capture packet
capture file, either printing a decoded form of those packets to the
standard output or writing the packets to a file. B<TShark>'s native
capture file format is B<libpcap> format, which is also the format used
-by B<tcpdump> and various other tools.
+by B<tcpdump> and various other tools.
-Without any options set, B<TShark> will work much like B<tcpdump>. It will
-use the pcap library to capture traffic from the first available network
-interface and displays a summary line on stdout for each received packet.
+Without any options set, B<TShark> will work much like B<tcpdump>. It will
+use the pcap library to capture traffic from the first available network
+interface and displays a summary line on stdout for each received packet.
-B<TShark> is able to detect, read and write the same capture files that
+B<TShark> is able to detect, read and write the same capture files that
are supported by B<Wireshark>.
-The input file doesn't need a specific filename extension; the file
+The input file doesn't need a specific filename extension; the file
format and an optional gzip compression will be automatically detected.
Near the beginning of the DESCRIPTION section of wireshark(1) or
L<http://www.wireshark.org/docs/man-pages/wireshark.html>
is a detailed description of the way B<Wireshark> handles this, which is
the same way B<Tshark> handles this.
-Compressed file support uses (and therefore requires) the zlib library.
+Compressed file support uses (and therefore requires) the zlib library.
If the zlib library is not present, B<TShark> will compile, but will
be unable to read compressed files.
If the B<-w> option is not specified, B<TShark> writes to the standard
-output the text of a decoded form of the packets it captures or reads.
+output the text of a decoded form of the packets it captures or reads.
If the B<-w> option is specified, B<TShark> writes to the file
specified by that option the raw data of the packets, along with the
packets' time stamps.
them, rather than writing packets from a saved capture file, it won't
show the "frame number" field. If the B<-V> option is specified, it
writes instead a view of the details of the packet, showing all the
-fields of all protocols in the packet.
+fields of all protocols in the packet. If the B<-O> option is specified,
+it will only show the full protocols specified. Use the output of
+"B<tshark -G protocols>" to find the abbreviations of the protocols you can
+specify.
If you want to write the decoded form of packets to a file, run
B<TShark> without the B<-w> option, and redirect its standard output to
When writing packets to a file, B<TShark>, by default, writes the
file in B<libpcap> format, and writes all of the packets it sees to the
output file. The B<-F> option can be used to specify the format in which
-to write the file. This list of available file formats is displayed by
-the B<-F> flag without a value. However, you can't specify a file format
+to write the file. This list of available file formats is displayed by
+the B<-F> flag without a value. However, you can't specify a file format
for a live capture.
Read filters in B<TShark>, which allow you to select which packets
B<-r> option was specified) and a read filter if a capture file is being
read (i.e., if a B<-r> option was specified).
+The B<-G> option is a special mode that simply causes B<Tshark>
+to dump one of several types of internal glossaries and then exit.
+
=head1 OPTIONS
=over 4
+=item -2
+
+Perform a two-pass analysis.
+
=item -a E<lt>capture autostop conditionE<gt>
Specify a criterion that specifies when B<TShark> is to stop writing
to a capture file. The criterion is of the form I<test>B<:>I<value>,
where I<test> is one of:
-B<duration>:I<value> Stop writing to a capture file after I<value> seconds have elapsed.
+B<duration>:I<value> Stop writing to a capture file after I<value> seconds
+have elapsed.
-B<filesize>:I<value> Stop writing to a capture file after it reaches a size of I<value>
-kilobytes (where a kilobyte is 1024 bytes). If this option
-is used together with the -b option, B<TShark> will stop writing to the
-current capture file and switch to the next one if filesize is reached. When reading a capture file,
-B<TShark> will stop reading the file after the number of bytes read exceeds this number
-(the complete packet will be read, so more bytes than this number may be read).
+B<filesize>:I<value> Stop writing to a capture file after it reaches a size of
+I<value> kilobytes (where a kilobyte is 1024 bytes). If this option is used
+together with the -b option, B<TShark> will stop writing to the current
+capture file and switch to the next one if filesize is reached. When reading a
+capture file, B<TShark> will stop reading the file after the number of bytes
+read exceeds this number (the complete packet will be read, so more bytes than
+this number may be read).
-B<files>:I<value> Stop writing to capture files after I<value> number of files were written.
+B<files>:I<value> Stop writing to capture files after I<value> number of files
+were written.
=item -b E<lt>capture ring buffer optionE<gt>
-Cause B<TShark> to run in "multiple files" mode. In "multiple files" mode,
-B<TShark> will write to several capture files. When the first capture file
+Cause B<TShark> to run in "multiple files" mode. In "multiple files" mode,
+B<TShark> will write to several capture files. When the first capture file
fills up, B<TShark> will switch writing to the next file and so on.
-The created filenames are based on the filename given with the B<-w> option, the number of
-the file and on the creation date and time,
-e.g. outfile_00001_20050604120117.pcap, outfile_00001_20050604120523.pcap, ...
+The created filenames are based on the filename given with the B<-w> option,
+the number of the file and on the creation date and time,
+e.g. outfile_00001_20050604120117.pcap, outfile_00002_20050604120523.pcap, ...
-With the I<files> option it's also possible to form a "ring buffer".
-This will fill up new files until the number of files specified,
-at which point B<TShark> will discard the data in the first file and start
-writing to that file and so on. If the I<files> option is not set,
-new files filled up until one of the capture stop conditions match (or
-until the disk if full).
+With the I<files> option it's also possible to form a "ring buffer".
+This will fill up new files until the number of files specified,
+at which point B<TShark> will discard the data in the first file and start
+writing to that file and so on. If the I<files> option is not set,
+new files filled up until one of the capture stop conditions match (or
+until the disk is full).
The criterion is of the form I<key>B<:>I<value>,
where I<key> is one of:
-B<duration>:I<value> switch to the next file after I<value> seconds have
+B<duration>:I<value> switch to the next file after I<value> seconds have
elapsed, even if the current file is not completely filled up.
-B<filesize>:I<value> switch to the next file after it reaches a size of
-I<value> kilobytes (where a kilobyte is 1024 bytes).
-
-B<files>:I<value> begin again with the first file after I<value> number of
-files were written (form a ring buffer).
-
-=item -B E<lt>capture buffer size (Win32 only)E<gt>
-
-Win32 only: set capture buffer size (in MB, default is 1MB). This is used by the
-the capture driver to buffer packet data until that data can be written to
-disk. If you encounter packet drops while capturing, try to increase this size.
+B<filesize>:I<value> switch to the next file after it reaches a size of
+I<value> kilobytes (where a kilobyte is 1024 bytes).
+
+B<files>:I<value> begin again with the first file after I<value> number of
+files were written (form a ring buffer). This value must be less than 100000.
+Caution should be used when using large numbers of files: some filesystems do
+not handle many files in a single directory well. The B<files> criterion
+requires either B<duration> or B<filesize> to be specified to control when to
+go to the next file. It should be noted that each B<-b> parameter takes exactly
+one criterion; to specify two criterion, each must be preceded by the B<-b>
+option.
+
+Example: B<-b filesize:1024 -b files:5> results in a ring buffer of five files
+of size one megabyte.
+
+=item -B E<lt>capture buffer sizeE<gt>
+
+Set capture buffer size (in MB, default is 1MB). This is used by the
+the capture driver to buffer packet data until that data can be written
+to disk. If you encounter packet drops while capturing, try to increase
+this size. Note that, while B<Tshark> attempts to set the buffer size
+to 1MB by default, and can be told to set it to a larger value, the
+system or interface on which you're capturing might silently limit the
+capture buffer size to a lower value or raise it to a higher value.
+
+This is available on UNIX systems with libpcap 1.0.0 or later and on
+Windows. It is not available on UNIX systems with earlier versions of
+libpcap.
+
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, it sets the default capture buffer size.
+If used after an B<-i> option, it sets the capture buffer size for
+the interface specified by the last B<-i> option occurring before
+this option. If the capture buffer size is not set specifically,
+the default capture buffer size is used if provided.
=item -c E<lt>capture packet countE<gt>
Set the maximum number of packets to read when capturing live
-data. If reading a capture file, set the maximum number of packets to read.
+data. If reading a capture file, set the maximum number of packets to read.
=item -C E<lt>configuration profileE<gt>
=item -d E<lt>layer typeE<gt>==E<lt>selectorE<gt>,E<lt>decode-as protocolE<gt>
Like Wireshark's B<Decode As...> feature, this lets you specify how a
-layer type should be dissected. If the layer type in question (for example,
+layer type should be dissected. If the layer type in question (for example,
B<tcp.port> or B<udp.port> for a TCP or UDP port number) has the specified
selector value, packets should be dissected as the specified protocol.
interface, is printed. The interface name or the number can be supplied
to the B<-i> option to specify an interface on which to capture.
-This can be useful on systems that don't have a command to list them
+This can be useful on systems that don't have a command to list them
(e.g., Windows systems, or UNIX systems lacking B<ifconfig -a>);
the number can be useful on Windows 2000 and later systems, where the
interface name is a somewhat complex string.
=item -e E<lt>fieldE<gt>
Add a field to the list of fields to display if B<-T fields> is
-selected. This option can be used multiple times on the command line.
+selected. This option can be used multiple times on the command line.
At least one field must be provided if the B<-T fields> option is
selected.
B<separator=/t|/s|>E<lt>characterE<gt> Set the separator character to
use for fields. If B</t> tab will be used (this is the default), if
-B</s>, s single space will be used. Otherwise any character that can be
+B</s>, a single space will be used. Otherwise any character that can be
accepted by the command line as part of the option may be used.
+B<occurrence=f|l|a> Select which occurrence to use for fields that have
+multiple occurrences. If B<f> the first occurrence will be used, if B<l>
+the last occurrence will be used and if B<a> all occurrences will be used
+(this is the default).
+
+B<aggregator=,|/s|>E<lt>characterE<gt> Set the aggregator character to
+use for fields that have multiple occurrences. If B<,> a comma will be used
+(this is the default), if B</s>, a single space will be used. Otherwise
+any character that can be accepted by the command line as part of the
+option may be used.
+
B<quote=d|s|n> Set the quote character to use to surround fields. B<d>
uses double-quotes, B<s> single-quotes, B<n> no quotes (the default).
Set the capture filter expression.
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, it sets the default capture filter expression.
+If used after an B<-i> option, it sets the capture filter expression for
+the interface specified by the last B<-i> option occurring before
+this option. If the capture filter expression is not set specifically,
+the default capture filter expression is used if provided.
+
=item -F E<lt>file formatE<gt>
Set the file format of the output capture file written using the B<-w>
text, so there is no B<-F> option to request text output. The option B<-F>
without a value will list the available formats.
+=item -G [fields|fields2|fields3|protocols|values|decodes|defaultprefs|currentprefs]
+
+The B<-G> option will cause B<Tshark> to dump one of several types of glossaries
+and then exit. If no specific glossary type is specified, then the B<fields> report will be generated by default.
+
+The available report types include:
+
+B<fields> Dumps the contents of the registration database to
+stdout. An independent program can take this output and format it into nice
+tables or HTML or whatever. There is one record per line. Each record is
+either a protocol or a header field, differentiated by the first field.
+The fields are tab-delimited.
+
+ * Protocols
+ * ---------
+ * Field 1 = 'P'
+ * Field 2 = descriptive protocol name
+ * Field 3 = protocol abbreviation
+ *
+ * Header Fields
+ * -------------
+ * Field 1 = 'F'
+ * Field 2 = descriptive field name
+ * Field 3 = field abbreviation
+ * Field 4 = type ( textual representation of the ftenum type )
+ * Field 5 = parent protocol abbreviation
+ * Field 6 = blurb describing field
+
+B<fields2> Same as the B<fields> report but includes two additional columns.
+
+ * Field 7 = base for display (for integer types); "parent bitfield width" for FT_BOOLEAN
+ * Field 8 = blurb describing field (yes, apparently we repeated this accidentally)
+
+B<fields3> Same as the B<fields> report but includes two additional columns.
+
+ * Field 7 = base for display (for integer types); "parent bitfield width" for FT_BOOLEAN
+ * Field 8 = bitmask: format: hex: 0x....
+
+B<protocols> Dumps the protocols in the registration database to stdout.
+An independent program can take this output and format it into nice tables
+or HTML or whatever. There is one record per line. The fields are tab-delimited.
+
+ * Field 1 = protocol name
+ * Field 2 = protocol short name
+ * Field 3 = protocol filter name
+
+B<values> Dumps the value_strings, range_strings or true/false strings
+for fields that have them. There is one record per line. Fields are
+tab-delimited. There are three types of records: Value String, Range
+String and True/False String. The first field, 'V', 'R' or 'T', indicates
+the type of record.
+
+ * Value Strings
+ * -------------
+ * Field 1 = 'V'
+ * Field 2 = field abbreviation to which this value string corresponds
+ * Field 3 = Integer value
+ * Field 4 = String
+ *
+ * Range Strings
+ * -------------
+ * Field 1 = 'R'
+ * Field 2 = field abbreviation to which this range string corresponds
+ * Field 3 = Integer value: lower bound
+ * Field 4 = Integer value: upper bound
+ * Field 5 = String
+ *
+ * True/False Strings
+ * ------------------
+ * Field 1 = 'T'
+ * Field 2 = field abbreviation to which this true/false string corresponds
+ * Field 3 = True String
+ * Field 4 = False String
+
+B<decodes> Dumps the "layer type"/"decode as" associations to stdout.
+There is one record per line. The fields are tab-delimited.
+
+ * Field 1 = layer type, e.g. "tcp.port"
+ * Field 2 = selector in decimal
+ * Field 3 = "decode as" name, e.g. "http"
+
+B<defaultprefs> Dumps a default preferences file to stdout.
+
+B<currentprefs> Dumps a copy of the current preferences file to stdout.
+
=item -h
Print the version and options and exits.
-=item -i E<lt>capture interfaceE<gt>|-
+=item -H E<lt>input hosts fileE<gt>
+
+Read a list of entries from a "hosts" file, which will then be written
+to a capture file. Implies B<-W n>.
+
+The "hosts" file format is documented at
+L<http://en.wikipedia.org/wiki/Hosts_(file)>.
+
+=item -i E<lt>capture interfaceE<gt> | -
Set the name of the network interface or pipe to use for live packet
-capture.
+capture.
Network interface names should match one of the names listed in
"B<tshark -D>" (described above); a number, as reported by
If no interface is specified, B<TShark> searches the list of
interfaces, choosing the first non-loopback interface if there are any
non-loopback interfaces, and choosing the first loopback interface if
-there are no non-loopback interfaces. If there are no interfaces at all,
+there are no non-loopback interfaces. If there are no interfaces at all,
B<TShark> reports an error and doesn't start the capture.
Pipe names should be either the name of a FIFO (named pipe) or ``-'' to
read data from the standard input. Data read from pipes must be in
standard libpcap format.
+This option can occur multiple times. When capturing from multiple
+interfaces, the capture file will be saved in pcap-ng format.
+
Note: the Win32 version of B<TShark> doesn't support capturing from
pipes!
+=item -I
+
+Put the interface in "monitor mode"; this is supported only on IEEE
+802.11 Wi-Fi interfaces, and supported only on some operating systems.
+
+Note that in monitor mode the adapter might disassociate from the
+network with which it's associated, so that you will not be able to use
+any wireless networks with that adapter. This could prevent accessing
+files on a network server, or resolving host names or network addresses,
+if you are capturing in monitor mode and are not connected to another
+network with another adapter.
+
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, it enables the monitor mode for all interfaces.
+If used after an B<-i> option, it enables the monitor mode for
+the interface specified by the last B<-i> option occurring before
+this option.
+
=item -K E<lt>keytabE<gt>
Load kerberos crypto keys from the specified keytab file.
=item -L
-List the data link types supported by the interface and exit. The reported
+List the data link types supported by the interface and exit. The reported
link types can be used for the B<-y> option.
=item -n
Disable network object name resolution (such as hostname, TCP and UDP port
-names), the B<-N> flag might override this one.
+names); the B<-N> flag might override this one.
=item -N E<lt>name resolving flagsE<gt>
Turn on name resolving only for particular types of addresses and port
numbers, with name resolving for other types of addresses and port
-numbers turned off. This flag overrides B<-n> if both B<-N> and B<-n> are
-present. If both B<-N> and B<-n> flags are not present, all name resolutions are
-turned on.
+numbers turned off. This flag overrides B<-n> if both B<-N> and B<-n> are
+present. If both B<-N> and B<-n> flags are not present, all name resolutions
+are turned on.
The argument is a string that may contain the letters:
preference (which is the same name that would appear in the preference
file), and I<value> is the value to which it should be set.
+=item -O E<lt>protocolsE<gt>
+
+Similar to the B<-V> option, but causes B<TShark> to only show a detailed view
+of the comma-separated list of I<protocols> specified, rather than a detailed
+view of all protocols. Use the output of "B<tshark -G protocols>" to find the
+abbreviations of the protocols you can specify.
+
=item -p
I<Don't> put the interface into promiscuous mode. Note that the
broadcast traffic, and multicast traffic to addresses received by that
machine.
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, no interface will be put into the
+promiscuous mode.
+If used after an B<-i> option, the interface specified by the last B<-i>
+option occurring before this option will not be put into the
+promiscuous mode.
+
+=item -P
+
+Decode and display packets even while writing raw packet data using the
+B<-w> option.
+
=item -q
When capturing packets, don't display the continuous count of packets
captured that is normally shown when saving a capture to a file;
instead, just display, at the end of the capture, a count of packets
captured. On systems that support the SIGINFO signal, such as various
-BSDs, you can cause the current count to be displayed by typing your
+BSDs, you can cause the current count to be displayed by typing your
"status" character (typically control-T, although it
might be set to "disabled" by default on at least some BSDs, so you'd
have to explicitly set it to use it).
=item -r E<lt>infileE<gt>
-Read packet data from I<infile>, can be any supported capture file format
-(including gzipped files). It's B<not> possible to use named pipes
+Read packet data from I<infile>, can be any supported capture file format
+(including gzipped files). It's B<not> possible to use named pipes
or stdin here!
=item -R E<lt>read (display) filterE<gt>
=item -s E<lt>capture snaplenE<gt>
-Set the default snapshot length to use when capturing live data.
+Set the default snapshot length to use when capturing live data.
No more than I<snaplen> bytes of each network packet will be read into
memory, or saved to disk. A value of 0 specifies a snapshot length of
65535, so that the full packet is captured; this is the default.
-=item -S
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, it sets the default snapshot length.
+If used after an B<-i> option, it sets the snapshot length for
+the interface specified by the last B<-i> option occurring before
+this option. If the snapshot length is not set specifically,
+the default snapshot length is used if provided.
-Decode and display packets even while writing raw packet data using the
-B<-w> option.
+=item -S E<lt>separatorE<gt>
+
+Set the line separator to be printed between packets.
-=item -t ad|a|r|d|e
+=item -t ad|a|r|d|dd|e
-Set the format of the packet timestamp printed in summary lines, the default
-is relative. The format can be one of:
+Set the format of the packet timestamp printed in summary lines.
+The format can be one of:
-B<ad> absolute with date: The absolute date and time is the actual time and
+B<ad> absolute with date: The absolute date and time is the actual time and
date the packet was captured
-B<a> absolute: The absolute time is the actual time the packet was captured,
+B<a> absolute: The absolute time is the actual time the packet was captured,
with no date displayed
-B<r> relative: The relative time is the time elapsed between the first packet
+B<r> relative: The relative time is the time elapsed between the first packet
and the current packet
B<d> delta: The delta time is the time since the previous packet was
captured
+B<dd> delta_displayed: The delta_displayed time is the time since the
+previous displayed packet was captured
+
B<e> epoch: The time in seconds since epoch (Jan 1, 1970 00:00:00)
+The default format is relative.
+
=item -T pdml|psml|ps|text|fields
Set the format of the output when viewing decoded packet data. The
whether the B<-V> flag was specified. This is the default.
B<fields> The values of fields specified with the B<-e> option, in a
-form specified by the B<-E> option.
+form specified by the B<-E> option. For example,
+
+ -T fields -E separator=, -E quote=d
+
+would generate comma-separated values (CSV) output suitable for importing
+into your favorite spreadsheet program.
+
=item -v
Cause B<TShark> to print a view of the packet details rather
than a one-line summary of the packet.
-=item -w E<lt>outfileE<gt>|-
+=item -w E<lt>outfileE<gt> | -
Write raw packet data to I<outfile> or to the standard output if
-I<outfile> is '-'.
+I<outfile> is '-'.
-NOTE: -w provides raw packet data, not text. If you want text output
-you need to redirect stdout (e.g. using '>'), don't use the B<-w>
+NOTE: -w provides raw packet data, not text. If you want text output
+you need to redirect stdout (e.g. using '>'), don't use the B<-w>
option for this.
+=item -W E<lt>file format optionE<gt>
+
+Save extra information in the file if the format supports it. For
+example,
+
+ -F pcapng -W n
+
+will save host name resolution records along with captured packets.
+
+Future versions of Wireshark may automatically change the capture format to
+B<pcapng> as needed.
+
+The argument is a string that may contain the following letter:
+
+B<n> write network address resolution information (pcapng only)
+
=item -x
Cause B<TShark> to print a hex and ASCII dump of the packet data
after printing the summary or details.
-
=item -X E<lt>eXtension optionsE<gt>
-Specify an option to be passed to a B<TShark> module. The eXtension option
+Specify an option to be passed to a B<TShark> module. The eXtension option
is in the form I<extension_key>B<:>I<value>, where I<extension_key> can be:
B<lua_script>:I<lua_script_filename> tells B<Wireshark> to load the given script in addition to the
default Lua scripts.
-
=item -y E<lt>capture link typeE<gt>
Set the data link type to use while capturing packets. The values
reported by B<-L> are the values that can be used.
+This option can occur multiple times. If used before the first
+occurrence of the B<-i> option, it sets the default capture link type.
+If used after an B<-i> option, it sets the capture link type for
+the interface specified by the last B<-i> option occurring before
+this option. If the capture link type is not set specifically,
+the default capture link type is used if provided.
+
=item -z E<lt>statisticsE<gt>
Get B<TShark> to collect various types of statistics and display the result
Currently implemented statistics are:
-B<-z> dcerpc,rtt,I<uuid>,I<major>.I<minor>[,I<filter>]
+=over 4
+
+=item B<-z> afp,srt[,I<filter>]
+
+=item B<-z> camel,srt
-Collect call/reply RTT data for DCERPC interface I<uuid>,
+=item B<-z> dcerpc,srt,I<uuid>,I<major>.I<minor>[,I<filter>]
+
+Collect call/reply SRT (Service Response Time) data for DCERPC interface I<uuid>,
version I<major>.I<minor>.
-Data collected is number of calls for each procedure, MinRTT, MaxRTT
-and AvgRTT.
-Example: use B<-z dcerpc,rtt,12345778-1234-abcd-ef00-0123456789ac,1.0> to collect data for CIFS SAMR Interface.
-This option can be used multiple times on the command line.
+Data collected is the number of calls for each procedure, MinSRT, MaxSRT
+and AvgSRT.
+
+Example: S<B<-z dcerpc,srt,12345778-1234-abcd-ef00-0123456789ac,1.0>> will collect data for the CIFS SAMR Interface.
-If the optional filterstring is provided, the stats will only be calculated
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z dcerpc,rtt,12345778-1234-abcd-ef00-0123456789ac,1.0,ip.addr==1.2.3.4> to collect SAMR
-RTT statistics for a specific host.
+Example: S<B<-z dcerpc,srt,12345778-1234-abcd-ef00-0123456789ac,1.0,ip.addr==1.2.3.4>> will collect SAMR
+SRT statistics for a specific host.
+
+=item B<-z> hosts[,ipv4][,ipv6]
+
+Dump any collected IPv4 and/or IPv6 addresses in "hosts" format. Both IPv4
+and IPv6 addresses are dumped by default.
+
+Addresses are collected from a number of sources, including standard "hosts"
+files and captured traffic.
+
+=item B<-z> icmp,srt[,I<filter>]
+
+Compute total ICMP echo requests, replies, loss, and percent loss, as well as
+minimum, maximum, mean, median and sample standard deviation SRT statistics
+typical of what ping provides.
+
+Example: S<B<-z icmp,srt,ip.src==1.2.3.4>> will collect ICMP SRT statistics
+for ICMP echo request packets originating from a specific host.
+
+This option can be used multiple times on the command line.
+
+=item B<-z> icmpv6,srt[,I<filter>]
+
+Compute total ICMPv6 echo requests, replies, loss, and percent loss, as well as
+minimum, maximum, mean, median and sample standard deviation SRT statistics
+typical of what ping provides.
-B<-z> io,phs[,I<filter>]
+Example: S<B<-z icmpv6,srt,ipv6.src==fe80::1>> will collect ICMPv6 SRT statistics
+for ICMPv6 echo request packets originating from a specific host.
+
+This option can be used multiple times on the command line.
+
+=item B<-z> io,phs[,I<filter>]
Create Protocol Hierarchy Statistics listing both number of packets and bytes.
If no I<filter> is specified the statistics will be calculated for all packets.
-If a I<filters> is specified statistics will be only calculated for those
+If a I<filter> is specified statistics will be only calculated for those
packets that match the filter.
-This option can be used multiple times on the command line.
-
+This option can be used multiple times on the command line.
-B<-z> io,stat,I<interval>[,I<filter>][,I<filter>][,I<filter>]...
+=item B<-z> io,stat,I<interval>[,I<filter>][,I<filter>][,I<filter>]...
Collect packet/bytes statistics for the capture in intervals of
-I<interval> seconds. I<Intervals> can be specified either as whole or
-fractional seconds. Interval can be specified in ms resolution.
-If Interval is 0, the statistics will be calculated over all packets.
+I<interval> seconds. I<Interval> can be specified either as a whole or
+fractional second and can be specified with microsecond (us) resolution.
+If I<interval> is 0, the statistics will be calculated over all packets.
If no I<filter> is specified the statistics will be calculated for all packets.
If one or more I<filters> are specified statistics will be calculated for
all filters and presented with one column of statistics for each filter.
-This option can be used multiple times on the command line.
+This option can be used multiple times on the command line.
-
-Example: B<-z io,stat,1,ip.addr==1.2.3.4> to generate 1 second
+Example: B<-z io,stat,1,ip.addr==1.2.3.4> will generate 1 second
statistics for all traffic to/from host 1.2.3.4.
-Example: B<-z "io,stat,0.001,smb&&ip.addr==1.2.3.4"> to generate 1ms
+Example: B<-z "io,stat,0.001,smb&&ip.addr==1.2.3.4"> will generate 1ms
statistics for all SMB packets to/from host 1.2.3.4.
The examples above all use the standard syntax for generating statistics
which only calculates the number of packets and bytes in each interval.
B<io,stat> can also do much more statistics and calculate COUNT(), SUM(),
-MIN(), MAX(), and AVG() using a slightly different filter syntax:
+MIN(), MAX(), AVG() and LOAD() using a slightly different filter syntax:
- [COUNT|SUM|MIN|MAX|AVG](<field>)<filter>
+=item -z io,stat,I<interval>,E<34>[COUNT|SUM|MIN|MAX|AVG|LOAD](I<field>)I<field> [and I<filter>]E<34>
-NOTE: One important thing to note here is that the field that the
-calculation is based on MUST also be part of the filter string or
+NOTE: One important thing to note here is that the field that the
+calculation is based on MUST also be part of the filter string or
else the calculation will fail.
So: B<-z io,stat,0.010,AVG(smb.time)> does not work. Use B<-z
io,stat,0.010,AVG(smb.time)smb.time> instead. Also be aware that a field
can exist multiple times inside the same packet and will then be counted
-multiple times in those packets.
+multiple times in those packets.
-NOTE: A second important thing to note is that the system setting for
-decimal separator is set to "."! If it is set to "," the statistics
+NOTE: A second important thing to note is that the system setting for
+decimal separator is set to "."! If it is set to "," the statistics
will not be displayed per filter.
+B<COUNT(I<field>)I<field> [and I<filter>]> - Calculates the number of times that the
+field I<name> (not its value) appears per interval in the filtered packet list.
+''I<field>'' can be any display filter name.
-COUNT(<field>) can be used on any type which has a display filter name.
-It will count how many times this particular field is encountered in the
-filtered packet list.
+Example: B<-z io,stat,0.010,E<34>COUNT(smb.sid)smb.sidE<34>>
-Example: B<-z io,stat,0.010,COUNT(smb.sid)smb.sid>
This will count the total number of SIDs seen in each 10ms interval.
-SUM(<field>) can only be used on named fields of integer type.
-This will sum together every occurence of this fields value for each interval.
-
-Example: B<-z io,stat,0.010,SUM(frame.pkt_len)frame.pkt_len>
-This will report the total number of bytes seen in all the packets within
-an interval.
-
-MIN/MAX/AVG(<field>) can only be used on named fields that are either
-integers or relative time fields. This will calculate maximum/minimum
-or average seen in each interval. If the field is a relative time field
-the output will be presented in seconds and three digits after the
-decimal point. The resolution for time calculations is 1ms and anything
-smaller will be truncated.
-
-Example: B<-z "io,stat,0.010,smb.time&&ip.addr==1.1.1.1,MIN(smb.time)smb.time&&ip.addr==1.1.1.1,MAX(smb.time)smb.time&&ip.addr==1.1.1.1,MAX(smb.time)smb.time&&ip.addr==1.1.1.1">
-
-This will calculate statistics for all smb response times we see to/from
-host 1.1.1.1 in 10ms intervals. The output will be displayed in 4
-columns; number of packets/bytes, minimum response time, maximum response
-time and average response time.
-
-
-
-B<-z> conv,I<type>[,I<filter>]
-
-Create a table that lists all conversations that could be seen in the capture.
-I<type> specifies which type of conversation we want to generate the
-statistics for; currently the supported ones are
-
- "eth" Ethernet
- "fc" Fibre Channel
- "fddi" FDDI
- "ip" IP addresses
+B<SUM(I<field>)I<field> [and I<filter>]> - Unlike COUNT, the I<values> of the
+specified field are summed per time interval.
+''I<field>'' can only be a named integer, float, double or relative time field.
+
+Example: B<-z io,stat,0.010,E<34>SUM(frame.len)frame.lenE<34>>
+
+Reports the total number of bytes that were transmitted bidirectionally in
+all the packets within a 10 millisecond interval.
+
+B<MIN/MAX/AVG(I<field>)I<field> [and I<filter>]> - The minimum, maximum, or average field value
+in each interval is calculated. The specified field must be a named integer,
+float, double or relative time field. For relative time fields, the output is presented in
+seconds with six decimal digits of precision rounded to the nearest microsecond.
+
+In the following example, the time of the first Read_AndX call, the last Read_AndX
+response values are displayed and the minimum, maximum, and average Read response times
+(SRTs) are calculated. NOTE: If the DOS command shell line continuation character, ''^''
+is used, each line cannot end in a comma so it is placed at the beginning of each
+continuation line:
+
+ tshark -o tcp.desegment_tcp_streams:FALSE -n -q -r smb_reads.cap -z io,stat,0,
+ "MIN(frame.time_relative)frame.time_relative and smb.cmd==0x2e and smb.flags.response==0",
+ "MAX(frame.time_relative)frame.time_relative and smb.cmd==0x2e and smb.flags.response==1",
+ "MIN(smb.time)smb.time and smb.cmd==0x2e",
+ "MAX(smb.time)smb.time and smb.cmd==0x2e",
+ "AVG(smb.time)smb.time and smb.cmd==0x2e"
+
+
+ ======================================================================================================
+ IO Statistics
+ Column #0: MIN(frame.time_relative)frame.time_relative and smb.cmd==0x2e and smb.flags.response==0
+ Column #1: MAX(frame.time_relative)frame.time_relative and smb.cmd==0x2e and smb.flags.response==1
+ Column #2: MIN(smb.time)smb.time and smb.cmd==0x2e
+ Column #3: MAX(smb.time)smb.time and smb.cmd==0x2e
+ Column #4: AVG(smb.time)smb.time and smb.cmd==0x2e
+ | Column #0 | Column #1 | Column #2 | Column #3 | Column #4 |
+ Time | MIN | MAX | MIN | MAX | AVG |
+ 000.000- 0.000000 7.704054 0.000072 0.005539 0.000295
+ ======================================================================================================
+
+The following command displays the average SMB Read response PDU size, the
+total number of read PDU bytes, the average SMB Write request PDU size, and
+the total number of bytes transferred in SMB Write PDUs:
+
+ tshark -n -q -r smb_reads_writes.cap -z io,stat,0,
+ "AVG(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2e and smb.response_to",
+ "SUM(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2e and smb.response_to",
+ "AVG(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2f and not smb.response_to",
+ "SUM(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2f and not smb.response_to"
+
+ =====================================================================================
+ IO Statistics
+ Column #0: AVG(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2e and smb.response_to
+ Column #1: SUM(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2e and smb.response_to
+ Column #2: AVG(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2f and not smb.response_to
+ Column #3: SUM(smb.file.rw.length)smb.file.rw.length and smb.cmd==0x2f and not smb.response_to
+ | Column #0 | Column #1 | Column #2 | Column #3 |
+ Time | AVG | SUM | AVG | SUM |
+ 000.000- 30018 28067522 72 3240
+ =====================================================================================
+
+B<LOAD(I<field>)I<field> [and I<filter>]> - The LOAD/Queue-Depth
+in each interval is calculated. The specified field must be a relative time field that represents a response time. For example smb.time.
+For each interval the Queue-Depth for the specified protocol is calculated.
+
+The following command displays the average SMB LOAD.
+A value of 1.0 represents one I/O in flight.
+
+ tshark -n -q -r smb_reads_writes.cap
+ -z "io,stat,0.001,LOAD(smb.time)smb.time"
+
+ ============================================================================
+ IO Statistics
+ Interval: 0.001000 secs
+ Column #0: LOAD(smb.time)smb.time
+ | Column #0 |
+ Time | LOAD |
+ 0000.000000-0000.001000 1.000000
+ 0000.001000-0000.002000 0.741000
+ 0000.002000-0000.003000 0.000000
+ 0000.003000-0000.004000 1.000000
+
+
+
+B<FRAMES | BYTES[()I<filter>]> - Displays the total number of frames or bytes.
+The filter field is optional but if included it must be prepended with ''()''.
+
+The following command displays five columns: the total number of frames and bytes
+(transferred bidirectionally) using a single comma, the same two stats using the FRAMES and BYTES
+subcommands, the total number of frames containing at least one SMB Read response, and
+the total number of bytes transmitted to the client (unidirectionally) at IP address 10.1.0.64.
+
+ tshark -o tcp.desegment_tcp_streams:FALSE -n -q -r smb_reads.cap -z io,stat,0,,FRAMES,BYTES,
+ "FRAMES()smb.cmd==0x2e and smb.response_to","BYTES()ip.dst==10.1.0.64"
+
+ =======================================================================================================================
+ IO Statistics
+ Column #0:
+ Column #1: FRAMES
+ Column #2: BYTES
+ Column #3: FRAMES()smb.cmd==0x2e and smb.response_to
+ Column #4: BYTES()ip.dst==10.1.0.64
+ | Column #0 | Column #1 | Column #2 | Column #3 | Column #4 |
+ Time | Frames | Bytes | FRAMES | BYTES | FRAMES | BYTES |
+ 000.000- 33576 29721685 33576 29721685 870 29004801
+ =======================================================================================================================
+
+=item B<-z> conv,I<type>[,I<filter>]
+
+Create a table that lists all conversations that could be seen in the
+capture. I<type> specifies the conversation endpoint types for which we
+want to generate the statistics; currently the supported ones are:
+
+ "eth" Ethernet addresses
+ "fc" Fibre Channel addresses
+ "fddi" FDDI addresses
+ "ip" IPv4 addresses
+ "ipv6" IPv6 addresses
"ipx" IPX addresses
"tcp" TCP/IP socket pairs Both IPv4 and IPv6 are supported
- "tr" Token Ring
+ "tr" Token Ring addresses
"udp" UDP/IP socket pairs Both IPv4 and IPv6 are supported
-If the optional filter string is specified, only those packets that match the
+If the optional I<filter> is specified, only those packets that match the
filter will be used in the calculations.
The table is presented with one line for each conversation and displays
-number of packets/bytes in each direction as well as total number of
-packets/bytes.
-The table is sorted according to total number of bytes.
+the number of packets/bytes in each direction as well as the total
+number of packets/bytes. The table is sorted according to the total
+number of bytes.
-
-B<-z> proto,colinfo,I<filter>,I<field>
+=item B<-z> proto,colinfo,I<filter>,I<field>
Append all I<field> values for the packet to the Info column of the
one-line summary output.
I<field> is the display-filter name of a field which value should be placed
in the Info column.
I<filter> is a filter string that controls for which packets the field value
-will be presented in the info column. I<field> will only be presented in the
+will be presented in the info column. I<field> will only be presented in the
Info column for the packets which match I<filter>.
NOTE: In order for B<TShark> to be able to extract the I<field> value
B<-z proto,colinfo,nfs.fh.hash,nfs.fh.hash>
-
To put "nfs.fh.hash" in the Info column but only for packets coming from
host 1.2.3.4 use:
B<-z "proto,colinfo,nfs.fh.hash && ip.src==1.2.3.4,nfs.fh.hash">
-This option can be used multiple times on the command line.
+This option can be used multiple times on the command line.
+
+=item B<-z> diameter,avp[,I<cmd.code>,I<field>,I<field>,I<...>]
+
+This option enables extraction of most important diameter fields from large capture files.
+Exactly one text line for each diameter message with matched B<diameter.cmd.code> will be printed.
+
+Empty diameter command code or '*' can be specified to mach any B<diameter.cmd.code>
+
+Example: B<-z diameter,avp> extract default field set from diameter messages.
+
+Example: B<-z diameter,avp,280> extract default field set from diameter DWR messages.
+Example: B<-z diameter,avp,272> extract default field set from diameter CC messages.
-B<-z> rpc,rtt,I<program>,I<version>[,I<filter>]
+Extract most important fields from diameter CC messages:
-Collect call/reply RTT data for I<program>/I<version>. Data collected
-is number of calls for each procedure, MinRTT, MaxRTT and AvgRTT.
-Example: use B<-z rpc,rtt,100003,3> to collect data for NFS v3. This
-option can be used multiple times on the command line.
+B<tshark -r file.cap.gz -q -z diameter,avp,272,CC-Request-Type,CC-Request-Number,Session-Id,Subscription-Id-Data,Rating-Group,Result-Code>
-If the optional filterstring is provided, the stats will only be calculated
+Following fields will be printed out for each diameter message:
+
+ "frame" Frame number.
+ "time" Unix time of the frame arrival.
+ "src" Source address.
+ "srcport" Source port.
+ "dst" Destination address.
+ "dstport" Destination port.
+ "proto" Constant string 'diameter', which can be used for post processing of tshark output. E.g. grep/sed/awk.
+ "msgnr" seq. number of diameter message within the frame. E.g. '2' for the third diameter message in the same frame.
+ "is_request" '0' if message is a request, '1' if message is an answer.
+ "cmd" diameter.cmd_code, E.g. '272' for credit control messages.
+ "req_frame" Number of frame where matched request was found or '0'.
+ "ans_frame" Number of frame where matched answer was found or '0'.
+ "resp_time" response time in seconds, '0' in case if matched Request/Answer is not found in trace. E.g. in the begin or end of capture.
+
+B<-z diameter,avp> option is much faster than B<-V -T text> or B<-T pdml> options.
+
+B<-z diameter,avp> option is more powerful than B<-T field> and B<-z proto,colinfo> options.
+
+Multiple diameter messages in one frame are supported.
+
+Several fields with same name within one diameter message are supported, e.g. I<diameter.Subscription-Id-Data> or I<diameter.Rating-Group>.
+
+Note: B<tshark -q> option is recommended to suppress default B<tshark> output.
+
+=item B<-z> rpc,srt,I<program>,I<version>[,I<filter>]
+
+Collect call/reply SRT (Service Response Time) data for I<program>/I<version>. Data collected
+is number of calls for each procedure, MinSRT, MaxSRT and AvgSRT.
+
+Example: B<-z rpc,srt,100003,3> will collect data for NFS v3.
+
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z rpc,rtt,100003,3,nfs.fh.hash==0x12345678> to collect NFS v3
-RTT statistics for a specific file.
+Example: B<-z rpc,srt,100003,3,nfs.fh.hash==0x12345678> will collect NFS v3
+SRT statistics for a specific file.
-B<-z> rpc,programs
+=item B<-z> rpc,programs
-Collect call/reply RTT data for all known ONC-RPC programs/versions.
-Data collected is number of calls for each protocol/version, MinRTT,
-MaxRTT and AvgRTT.
+Collect call/reply SRT data for all known ONC-RPC programs/versions.
+Data collected is number of calls for each protocol/version, MinSRT,
+MaxSRT and AvgSRT.
This option can only be used once on the command line.
-B<-z> rtp,streams
+=item B<-z> rtp,streams
Collect statistics for all RTP streams and calculate max. delta, max. and
mean jitter and packet loss percentages.
+=item B<-z> scsi,srt,I<cmdset>[,<filter>]
+
+Collect call/reply SRT (Service Response Time) data for SCSI commandset <cmdset>.
+
+Commandsets are 0:SBC 1:SSC 5:MMC
+
+Data collected
+is the number of calls for each procedure, MinSRT, MaxSRT and AvgSRT.
+
+Example: B<-z scsi,srt,0> will collect data for SCSI BLOCK COMMANDS (SBC).
+
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
+on those calls that match that filter.
+
+Example: B<-z scsi,srt,0,ip.addr==1.2.3.4> will collect SCSI SBC
+SRT statistics for a specific iscsi/ifcp/fcip host.
+
+=item B<-z> smb,srt[,I<filter>]
-B<-z> smb,rtt[,I<filter>]
+Collect call/reply SRT (Service Response Time) data for SMB. Data collected
+is number of calls for each SMB command, MinSRT, MaxSRT and AvgSRT.
+
+Example: B<-z smb,srt>
-Collect call/reply RTT data for SMB. Data collected
-is number of calls for each SMB command, MinRTT, MaxRTT and AvgRTT.
-Example: use B<-z smb,rtt>.
The data will be presented as separate tables for all normal SMB commands,
all Transaction2 commands and all NT Transaction commands.
Only those commands that are seen in the capture will have its stats
only the SessionSetupAndX call will be used in the statistics.
This is a flaw that might be fixed in the future.
-This option can be used multiple times on the command line.
+This option can be used multiple times on the command line.
-If the optional filterstring is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z "smb,rtt,ip.addr==1.2.3.4"> to only collect stats for
-SMB packets echanged by the host at IP address 1.2.3.4 .
-B<-z> smb,sids
+Example: B<-z "smb,srt,ip.addr==1.2.3.4"> will only collect stats for
+SMB packets exchanged by the host at IP address 1.2.3.4 .
+
+=item B<-z> smb,sids
When this feature is used B<TShark> will print a report with all the
discovered SID and account name mappings. Only those SIDs where the
For this feature to work you will need to either to enable
"Edit/Preferences/Protocols/SMB/Snoop SID to name mappings" in the
preferences or you can override the preferences by specifying
-B<-o "smb.sid_name_snooping:TRUE"> on the B<TShark> command line.
+S<B<-o "smb.sid_name_snooping:TRUE">> on the B<TShark> command line.
-The current methods used by B<TShark> to find the SID->name mapping
-is relatively restricted but is hoped to be expanded in the future.
+The current method used by B<TShark> to find the SID->name mapping
+is relatively restricted with a hope of future expansion.
-B<-z> mgcp,rtd[I<,filter>]
+=item B<-z> mgcp,rtd[I<,filter>]
-Collect requests/response RTD (Response Time Delay) data for MGCP.
-This is similar to B<-z smb,rtt>). Data collected is number of calls
+Collect requests/response RTD (Response Time Delay) data for MGCP.
+(This is similar to B<-z smb,srt>). Data collected is the number of calls
for each known MGCP Type, MinRTD, MaxRTD and AvgRTD.
-Additionally you get the number of duplicate requests/responses,
-unresponded requests, responses ,which don't match with
-any request.
-Example: use B<-z mgcp,rtd>.
+Additionally you get the number of duplicate requests/responses,
+unresponded requests, responses, which don't match with any request.
+Example: B<-z mgcp,rtd>.
-This option can be used multiple times on the command line.
+This option can be used multiple times on the command line.
-If the optional filterstring is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z "mgcp,rtd,ip.addr==1.2.3.4"> to only collect stats for
+Example: B<-z "mgcp,rtd,ip.addr==1.2.3.4"> will only collect stats for
MGCP packets exchanged by the host at IP address 1.2.3.4 .
-B<-z> megaco,rtd[I<,filter>]
+=item B<-z> megaco,rtd[I<,filter>]
-Collect requests/response RTD (Response Time Delay) data for MEGACO.
-This is similar to B<-z smb,rtt>). Data collected is number of calls
+Collect requests/response RTD (Response Time Delay) data for MEGACO.
+(This is similar to B<-z smb,srt>). Data collected is the number of calls
for each known MEGACO Type, MinRTD, MaxRTD and AvgRTD.
-Additionally you get the number of duplicate requests/responses,
-unresponded requests, responses ,which don't match with
-any request.
-Example: use B<-z megaco,rtd>.
-
-This option can be used multiple times on the command line.
+Additionally you get the number of duplicate requests/responses,
+unresponded requests, responses, which don't match with any request.
+Example: B<-z megaco,rtd>.
-If the optional filterstring is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z "megaco,rtd,ip.addr==1.2.3.4"> to only collect stats for
+Example: B<-z "megaco,rtd,ip.addr==1.2.3.4"> will only collect stats for
MEGACO packets exchanged by the host at IP address 1.2.3.4 .
-B<-z> h225,counter[I<,filter>]
+This option can be used multiple times on the command line.
-Count ITU-T H.225 messages and their reasons. In the first column you get a
+=item B<-z> h225,counter[I<,filter>]
+
+Count ITU-T H.225 messages and their reasons. In the first column you get a
list of H.225 messages and H.225 message reasons, which occur in the current
-capture file. The number of occurences of each message or reason is displayed
+capture file. The number of occurrences of each message or reason is displayed
in the second column.
-Example: use B<-z h225,counter>.
-
-This option can be used multiple times on the command line.
+Example: B<-z h225,counter>.
-If the optional filterstring is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
Example: use B<-z "h225,counter,ip.addr==1.2.3.4"> to only collect stats for
H.225 packets exchanged by the host at IP address 1.2.3.4 .
-B<-z> h225,srt[I<,filter>]
+This option can be used multiple times on the command line.
-Collect requests/response SRT (Service Response Time) data for ITU-T H.225 RAS.
+=item B<-z> h225,srt[I<,filter>]
+
+Collect requests/response SRT (Service Response Time) data for ITU-T H.225 RAS.
Data collected is number of calls of each ITU-T H.225 RAS Message Type,
-Minimum SRT, Maximum SRT, Average SRT, Minimum in Frame, and Maximum in Frame.
-You will also get the number of Open Requests (Unresponded Requests),
+Minimum SRT, Maximum SRT, Average SRT, Minimum in Packet, and Maximum in Packet.
+You will also get the number of Open Requests (Unresponded Requests),
Discarded Responses (Responses without matching request) and Duplicate Messages.
-Example: use B<-z h225,srt>.
-This option can be used multiple times on the command line.
+Example: B<-z h225,srt>
+
+This option can be used multiple times on the command line.
-If the optional filterstring is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z "h225,srt,ip.addr==1.2.3.4"> to only collect stats for
+
+Example: B<-z "h225,srt,ip.addr==1.2.3.4"> will only collect stats for
ITU-T H.225 RAS packets exchanged by the host at IP address 1.2.3.4 .
-B<-z> sip,stat[I<,filter>]
+=item B<-z> sip,stat[I<,filter>]
-This option will activate a counter for SIP messages. You will get the number
-of occurences of each SIP Method and of each SIP Status-Code. Additionally you
-also get the number of resent SIP Messages (only for SIP over UDP).
+This option will activate a counter for SIP messages. You will get the number
+of occurrences of each SIP Method and of each SIP Status-Code. Additionally
+you also get the number of resent SIP Messages (only for SIP over UDP).
-Example: use B<-z sip,stat>.
+Example: B<-z sip,stat>.
-This option can be used multiple times on the command line.
+This option can be used multiple times on the command line.
-If the optional filter string is provided, the stats will only be calculated
+If the optional I<filter> is provided, the stats will only be calculated
on those calls that match that filter.
-Example: use B<-z "sip,stat,ip.addr==1.2.3.4"> to only collect stats for
+Example: B<-z "sip,stat,ip.addr==1.2.3.4"> will only collect stats for
SIP packets exchanged by the host at IP address 1.2.3.4 .
+=item B<-z> mac-lte,stat[I<,filter>]
+
+This option will activate a counter for LTE MAC messages. You will get
+information about the maximum number of UEs/TTI, common messages and
+various counters for each UE that appears in the log.
+
+Example: B<-z mac-lte,stat>.
+
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
+for those frames that match that filter.
+Example: B<-z "mac-lte,stat,mac-lte.rnti>3000"> will only collect stats for
+UEs with an assigned RNTI whose value is more than 3000.
+
+=item B<-z> rlc-lte,stat[I<,filter>]
+
+This option will activate a counter for LTE RLC messages. You will get
+information about common messages and various counters for each UE that appears
+in the log.
+
+Example: B<-z rlc-lte,stat>.
+
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
+for those frames that match that filter.
+Example: B<-z "rlc-lte,stat,rlc-lte.ueid>3000"> will only collect stats for
+UEs with a UEId of more than 3000.
+
+=item B<-z> expert,stat[I<,filter>]
+
+Collects information about all expert info, and will display them in order,
+grouped by severity.
+
+
+Example: B<-z expert,stat>.
+
+This option can be used multiple times on the command line.
+
+If the optional I<filter> is provided, the stats will only be calculated
+on those calls that match that filter.
+Example: B<-z "expert,stat,tcp"> will only collect expert items for frames that
+include the tcp protocol.
+
+=back
+
=back
=head1 CAPTURE FILTER SYNTAX
-See the manual page of pcap-filter(4) or, if that doesn't exist, tcpdump(8).
+See the manual page of pcap-filter(4) or, if that doesn't exist, tcpdump(8),
+or, if that doesn't exist, L<http://wiki.wireshark.org/CaptureFilters>.
=head1 READ FILTER SYNTAX
=item Preferences
The F<preferences> files contain global (system-wide) and personal
-preference settings. If the system-wide preference file exists, it is
-read first, overriding the default settings. If the personal preferences
-file exists, it is read next, overriding any previous values. Note: If
+preference settings. If the system-wide preference file exists, it is
+read first, overriding the default settings. If the personal preferences
+file exists, it is read next, overriding any previous values. Note: If
the command line option B<-o> is used (possibly more than once), it will
in turn override values from the preferences files.
used to resolve IPv4 and IPv6 addresses before any other
attempts are made to resolve them. The file has the standard F<hosts>
file syntax; each line contains one IP address and name, separated by
-whitespace. The same directory as for the personal preferences file is
+whitespace. The same directory as for the personal preferences file is
used.
+Capture filter name resolution is handled by libpcap on UNIX-compatible
+systems and WinPCAP on Windows. As such the Wireshark personal F<hosts> file
+will not be consulted for capture filter name resolution.
+
=item Name Resolution (ethers)
The F<ethers> files are consulted to correlate 6-byte hardware addresses to
-names. First the personal F<ethers> file is tried and if an address is not
+names. First the personal F<ethers> file is tried and if an address is not
found there the global F<ethers> file is tried next.
Each line contains one hardware address and name, separated by
whitespace. The digits of the hardware address are separated by colons
(:), dashes (-) or periods (.). The same separator character must be
-used consistently in an address. The following three lines are valid
+used consistently in an address. The following three lines are valid
lines of an F<ethers> file:
ff:ff:ff:ff:ff:ff Broadcast
The personal F<ethers> file is looked for in the same directory as the personal
preferences file.
+Capture filter name resolution is handled by libpcap on UNIX-compatible
+systems and WinPCAP on Windows. As such the Wireshark personal F<ethers> file
+will not be consulted for capture filter name resolution.
+
=item Name Resolution (manuf)
-The F<manuf> file is used to match the 3-byte vendor portion of a 6-byte
-hardware address with the manufacturer's name; it can also contain well-known
-MAC addresses and address ranges specified with a netmask. The format of the
+The F<manuf> file is used to match the 3-byte vendor portion of a 6-byte
+hardware address with the manufacturer's name; it can also contain well-known
+MAC addresses and address ranges specified with a netmask. The format of the
file is the same as the F<ethers> files, except that entries of the form:
00:00:0C Cisco
00-00-0C-07-AC/40 All-HSRP-routers
can be specified, with a MAC address and a mask indicating how many bits
-of the address must match. The above entry, for example, has 40
+of the address must match. The above entry, for example, has 40
significant bits, or 5 bytes, and would match addresses from
-00-00-0C-07-AC-00 through 00-00-0C-07-AC-FF. The mask need not be a
+00-00-0C-07-AC-00 through 00-00-0C-07-AC-FF. The mask need not be a
multiple of 8.
The F<manuf> file is looked for in the same directory as the global
=item Name Resolution (ipxnets)
-The F<ipxnets> files are used to correlate 4-byte IPX network numbers to
-names. First the global F<ipxnets> file is tried and if that address is not
+The F<ipxnets> files are used to correlate 4-byte IPX network numbers to
+names. First the global F<ipxnets> file is tried and if that address is not
found there the personal one is tried next.
The format is the same as the F<ethers>
=back
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item WIRESHARK_DEBUG_EP_NO_CHUNKS
+
+Normally per-packet memory is allocated in large "chunks." This behavior
+doesn't work well with debugging tools such as Valgrind or ElectricFence.
+Export this environment variable to force individual allocations.
+Note: disabling chunks also disables canaries (see below).
+
+=item WIRESHARK_DEBUG_SE_NO_CHUNKS
+
+Normally per-file memory is allocated in large "chunks." This behavior
+doesn't work well with debugging tools such as Valgrind or ElectricFence.
+Export this environment variable to force individual allocations.
+Note: disabling chunks also disables canaries (see below).
+
+=item WIRESHARK_DEBUG_EP_NO_CANARY
+
+Normally per-packet memory allocations are separated by "canaries" which
+allow detection of memory overruns. This comes at the expense of some extra
+memory usage. Exporting this environment variable disables these canaries.
+
+=item WIRESHARK_DEBUG_SE_USE_CANARY
+
+Exporting this environment variable causes per-file memory allocations to be
+protected with "canaries" which allow for detection of memory overruns.
+This comes at the expense of significant extra memory usage.
+
+=item WIRESHARK_DEBUG_SCRUB_MEMORY
+
+If this environment variable is exported, the contents of per-packet and
+per-file memory is initialized to 0xBADDCAFE when the memory is allocated
+and is reset to 0xDEADBEEF when the memory is freed. This functionality is
+useful mainly to developers looking for bugs in the way memory is handled.
+
+=item WIRESHARK_RUN_FROM_BUILD_DIRECTORY
+
+This environment variable causes the plugins and other data files to be loaded
+from the build directory (where the program was compiled) rather than from the
+standard locations. It has no effect when the program in question is running
+with root (or setuid) permissions on *NIX.
+
+=item WIRESHARK_DATA_DIR
+
+This environment variable causes the various data files to be loaded from
+a directory other than the standard locations. It has no effect when the
+program in question is running with root (or setuid) permissions on *NIX.
+
+=item WIRESHARK_PYTHON_DIR
+
+This environment variable points to an alternate location for Python.
+It has no effect when the program in question is running with root (or setuid)
+permissions on *NIX.
+
+=item ERF_RECORDS_TO_CHECK
+
+This environment variable controls the number of ERF records checked when
+deciding if a file really is in the ERF format. Setting this environment
+variable a number higher than the default (20) would make false positives
+less likely.
+
+=item IPFIX_RECORDS_TO_CHECK
+
+This environment variable controls the number of IPFIX records checked when
+deciding if a file really is in the IPFIX format. Setting this environment
+variable a number higher than the default (20) would make false positives
+less likely.
+
+=item WIRESHARK_ABORT_ON_DISSECTOR_BUG
+
+If this environment variable is set, B<TShark> will call abort(3)
+when a dissector bug is encountered. abort(3) will cause the program to
+exit abnormally; if you are running B<TShark> in a debugger, it
+should halt in the debugger and allow inspection of the process, and, if
+you are not running it in a debugger, it will, on some OSes, assuming
+your environment is configured correctly, generate a core dump file.
+This can be useful to developers attempting to troubleshoot a problem
+with a protocol dissector.
+
+=item WIRESHARK_EP_VERIFY_POINTERS
+
+This environment variable, if exported, causes certain uses of pointers to be
+audited to ensure they do not point to memory that is deallocated after each
+packet has been fully dissected. This can be useful to developers writing or
+auditing code.
+
+=item WIRESHARK_SE_VERIFY_POINTERS
+
+This environment variable, if exported, causes certain uses of pointers to be
+audited to ensure they do not point to memory that is deallocated after when
+a capture file is closed. This can be useful to developers writing or
+auditing code.
+
+=back
+
=head1 SEE ALSO
wireshark-filter(4), wireshark(1), editcap(1), pcap-filter(4), tcpdump(8),
git.samba.org / obnox / wireshark / wip.git / blobdiff