NAME
tcpprof - report profile of network traffic
SYNOPSIS
tcpprof [-?hdnpR] [-f filter expr] [-i interface] [-P port] [-r filename]
[-s seconds] [-S letters] [-t lines]
DESCRIPTION
tcpprof reports a profile of network traffic by ranking it by link type,
ip protocol, TCP/UDP port, ip address, or network address.
Network information is collected either by reading data from filename, or
by directly monitoring the network interface interface. The default
action for tcpprof is to automatically search for an appropriate
interface, and to generate a profile before it exits.
When reading data from filename, tcpprof will display the profile and
exit immediately after the entire file has been processed. When
collecting data from interface, tcpprof will keep running unless the -s
option had been specified.
OPTIONS
The options are as follows:
-f filter expr
Filter the packets according the rules given by filter expr.
For the syntax of these rules, see tcpdump(1). The argument
must be quoted if it contains spaces in order to separate it
from other options.
-h, -? Display version and a brief help message.
-d tcpprof will track the source and destination information
separately, where applicable, and identify source data with a
">" and destination data with "<". For example, a "http <"
statistic signifies all traffic with destination port 80
(http). This option only applies to port, host and network
statistics.
-i interface
Do a live capture (rather than read from a file) on the
interface interface given on the command line. If interface
is "auto" then tcpprof tries to find an appropriate one by
itself.
-P port This tells tcpprof to ignore TCP and UDP ports greater than
or equal to port when displaying port statistics. This is
not the same as filtering these port numbers out of the data
set. This way, packets with i.e. the source port above port
and the destination port below port will be able to still
count the lower port number as a statistic. In addition,
this doesn’t affect the other statistic types (link,
protocol, etc.)
-p Set the interface into non-promiscuous mode (promiscuous is
the default) when doing live captures.
-r filename
Read all data from filename, which may be a regular file, a
named pipe or "-" to read it’s data from standard input.
Acceptable file formats include pcap (tcpdump(1) files) and
"snoop" format files. filename is usually a file created by
the tcpdump(1) command using the "-w" option.
-S letters Tells tcpprof which statistics to display. letters must be a
string of one or more of the following letters:
l show stats about the link layer
i show stats about all ip protocols
p show stats about TCP/UDP ports
h show stats about hosts/ip addresses
n show stats about network addresses
a a synonym for "liphn"
-s seconds When monitoring an interface, tcpprof runs for only seconds
seconds, and then quits. Has no effect when reading data
from a file.
-t lines When printing a profile of the data, tcpprof will display a
maximum of lines lines for each statistic.
SIGNALS
Upon receiving a SIGINT, tcpprof will print any remaining statistics, and
then exit.
FILES
/dev/bpfn the packet filter device
EXAMPLES
tcpprof -i fxp0 -S a
Displays a complete profile of network data passing through the fxp0
network interface, after the user enters ^C (control C).
tcpprof -r file.dump -S a
Displays a complete profile of network data from the tcpdump(1) generated
file "file.dump".
SEE ALSO
tcpdump(1), pcap(3), bpf(4)
HISTORY
tcpprof was first written along side tcpstat in Winter 1998 using FreeBSD
3.0, and then finaly retrofited for Linux in Spring 2000. It became
installed along with tcpstat since version 1.5.
AUTHORS
Paul Herman 〈pherman@frenchfries.net〉
Cologne, Germany.
Please send all bug reports to this address.
BUGS
Not tested with link types other than Ethernet, PPP, and "None" types.
There may be problems reading non-IPv4 packets across platforms when
reading null type link layers. This is due to a lack of a standardized
packet type descriptor in libpcap for this link type.
Snoop file formats cannot be read from stdin or named pipes.