tcptrace

tcptrace(1) General Commands Manual tcptrace(1)

NAME

   tcptrace - a TCP connection analysis tool

SYNOPSIS

   tcptrace [options] filename

DESCRIPTION

   tcptrace takes a tcpdump file specified on the command line (or from standard input) and produces a summarization of the connections.

OPTIONS

   Output format options

   -b   brief output format

   -l   long output format

   -r   print rtt statistics (slower for large files)

   -W   report on estimated congestion window (not generally useful)

   -q   no output (if you just want modules output)

   Graphing options

   -T   create throughput graph[s], (average over 10 segments, see -A)

   -R   create rtt sample graph[s]

   -S   create time sequence graph[s]

   -N   create owin graph[s] (_o_utstanding data on _N_etwork)

   -F   create segsize graph[s]

   -G   create ALL graphs

   Output format detail options

   -D   print in decimal

   -X   print in hexadecimal

   -n   don't resolve host or service names (much faster)

   -s   use short names (list "picard.cs.ohiou.edu" as just "picard")

   Connection filtering options

   -iN  ignore connection N (can use multiple times)

   -oN[-M]
        only connection N (or N through M).  Arg can be used many times.  In N is a file rather than a number, read list from file instead.

   -c   ignore non-complete connections (didn't see syn's and fin's)

   -BN  first segment number to analyze (default 1)

   -EN  last segment number to analyze (default last in file)

   Graphing detail options

   -C   produce color plot[s]

   -M   produce monochrome (b/w) plot[s]

   -AN  Average N segments for throughput graphs, default is 10

   -z   zero axis options:

   -z   plot time axis from 0 rather than wall clock time (backward compat)

   -zx  plot time axis from 0 rather than wall clock time

   -zy  plot sequence numbers from 0 (time sequence graphs only)

   -zxy plot both axes from 0

   -y   omit the (yellow) instantaneous throughput points in tput graph

   Misc options

   -Z   dump raw rtt sample times to file[s]

   -p   print all packet contents (can be very long)

   -P   print packet contents for selected connections

   -t   ยดtick' off the packet numbers as a progress indication

   -v   print version information and exit

   -w   print various warning messages

   -d   whistle while you work (enable debug, use -d -d for more output)

   -e   extract contents of each TCP stream into file

   -h   print help messages

   -u   print minimal UDP information too

   -Ofile
        dump matched packets to tcpdump file 'file'

   +[v] reverse the setting of the -[v] flag (for booleans)

   Extended boolean options (unambiguous prefixes also work)

   --showsacks
        show SACK blocks on time sequence graphs (default)

   --noshowsacks
        DON'T show SACK blocks on time sequence graphs

   --showrexmit
        mark retransmits on time sequence graphs (default)

   --noshowrexmit
        DON'T mark retransmits on time sequence graphs

   --showoutorder
        mark out-of-order on time sequence graphs (default)

   --noshowoutorder
        DON'T mark out-of-order on time sequence graphs

   --showzerowindow
        mark zero windows on time sequence graphs (default)

   --noshowzerowindow
        DON'T mark zero windows on time sequence graphs

   --showurg
        mark packets with URGENT bit set on the time sequence graphs (default)

   --noshowurg
        DON'T mark packets with URGENT bit set on the time sequence graphs

   --showrttdongles
        mark non-RTT-generating ACKs with special symbols

   --noshowrttdongles
        DON'T mark non-RTT-generating ACKs with special symbols (default)

   --showdupack3
        mark triple dupacks on time sequence graphs (default)

   --noshowdupack3
        DON'T mark triple dupacks on time sequence graphs

   --showzerolensegs
        show zero length packets on time sequence graphs (default)

   --noshowzerolensegs
        DON'T show zero length packets on time sequence graphs

   --showzwndprobes
        show zero window probe packets on time sequence graphs (default)

   --noshowzwndprobes
        DON'T show zero window probe packets on time sequence graphs

   --showtitle
        show title on the graphs (default)

   --noshowtitle
        DON'T show title on the graphs

   --res_addr
        resolve IP addresses into names (may be slow) (default)

   --nores_addr
        DON'T resolve IP addresses into names (may be slow)

   --res_port
        resolve port numbers into names (default)

   --nores_port
        DON'T resolve port numbers into names

   --checksum
        verify IP and TCP checksums

   --nochecksum
        DON'T verify IP and TCP checksums (default)

   --dupack3_data
        count a duplicate ACK carrying data as a triple dupack

   --nodupack3_data
        DON'T count a duplicate ACK carrying data as a triple dupack (default)

   --check_hwdups
        check for 'hardware' dups (default)

   --nocheck_hwdups
        DON'T check for 'hardware' dups

   --warn_ooo
        print warnings when packets timestamps are out of order

   --nowarn_ooo
        DON'T print warnings when packets timestamps are out of order (default)

   --warn_printtrunc
        print warnings when packets are too short to analyze

   --nowarn_printtrunc
        DON'T print warnings when packets are too short to analyze (default)

   --warn_printbadmbz
        print warnings when MustBeZero TCP fields are NOT 0

   --nowarn_printbadmbz
        DON'T print warnings when MustBeZero TCP fields are NOT 0 (default)

   --warn_printhwdups
        print warnings for hardware duplicates

   --nowarn_printhwdups
        DON'T print warnings for hardware duplicates (default)

   --warn_printbadcsum
        print warnings when packets with bad checksums

   --nowarn_printbadcsum
        DON'T print warnings when packets with bad checksums (default)

   --warn_printbad_syn_fin_seq
        print warnings when SYNs or FINs rexmitted with different sequence numbers

   --nowarn_printbad_syn_fin_seq
        DON'T print warnings when SYNs or FINs rexmitted with different sequence numbers (default)

   --dump_packet_data
        print all packets AND dump the TCP/UDP data

   --nodump_packet_data
        DON'T print all packets AND dump the TCP/UDP data (default)

   --continuous
        run continuously and don't provide a summary

   --nocontinuous
        DON'T run continuously and don't provide a summary (default)

   --print_seq_zero
        print sequence numbers as offset from initial sequence number

   --noprint_seq_zero
        DON'T print sequence numbers as offset from initial sequence number (default)

   --limit_conn_num
        limit the maximum number of connections kept at a time in real-time mode

   --nolimit_conn_num
        DON'T limit the maximum number of connections kept at a time in real-time mode (default)

   --xplot_all_files
        display all generated xplot files at the end

   --noxplot_all_files
        DON'T display all generated xplot files at the end (default)

   --ns_hdrs
        assume that ns has the useHeaders_flag true (uses IP+TCP headers) (default)

   --nons_hdrs
        DON'T assume that ns has the useHeaders_flag true (uses IP+TCP headers)

   --csv
        display the long output as comma separated values

   --nocsv
        DON'T display the long output as comma separated values (default)

   --tsv
        display the long output as tab separated values

   --notsv
        DON'T display the long output as tab separated values (default)

   Extended variable options (unambiguous prefixes also work)

   --output_dir=``STR''
        directory where all output files are placed (default: '<NULL>')

   --output_prefix=``STR''
        prefix all output files with this string (default: '<NULL>')

   --xplot_title_prefix=``STR''
        prefix to place in the titles of all xplot files (default: '<NULL>')

   --update_interval=``STR''
        time interval for updates in real-time mode (default: '<NULL>')

   --max_conn_num=``STR''
        maximum number of connections to keep at a time in real-time mode (default: '<NULL>')

   --remove_live_conn_interval=``STR''
        idle time after which an open connection is removed in real-time mode (default: '<NULL>')

   --remove_closed_conn_interval=``STR''
        time interval after which a closed connection is removed in real-time mode (default: '<NULL>')

   --xplot_args=``STR''
        arguments to pass to xplot, if we are calling xplot from here (default: '<NULL>')

   --sv=``STR''
        separator to use for long output with <STR>-separated-values (default: '<NULL>')

   Included Modules

     http             Http analysis package

     tcplib           TCPLib analysis package

     traffic          traffic analysis package

     slice            traffic efficiency data by time slices

     rttgraph         round trip time analysis graphs

     collie           connection summary package

     realtime         example real-time package

   For module-specific options, please use `tcptrace -hxargs`

   Filter Variables:

   Please use 'tcptrace -hfilter' for the complete listing of filter variables.

   Filter Syntax:

   Please use 'tcptrace -hfilter' for filter syntax.

ENVIRONMENT

   Options are first read from the file $HOME/.tcptracerc (if it exists), and then from the environment variable TCPTRACEOPTS (if it exists), and finally from the command line.

AUTHOR

   Shawn Ostermann (ostermann@cs.ohiou.edu)

CREDITS

   Thanks to Mark Foster (mafoster@george.arc.nasa.gov) for writing this manual page. Thanks to Avinash Lakhiani (alakhian@irg.cs.ohiou.edu) for updating it.

FILES

   Dump File Names
   Trailing  (unrecognized)  arguments  are  taken to be one or more filenames.  The files can be compressed, see compress.h for configuration.  If the dump file name is 'stdin', then we
   read from standard input rather than from a file.

SEE ALSO

   xplot   an interactive tool for examining .xpl files output by tcptrace.

   jPlot   a Java version of xplot.

                                                                                      14 Oct 2002                                                                              tcptrace(1)