Provided by: iptraf-ng_1.1.4-2_i386 bug


       iptraf - Interactive Colorful IP LAN Monitor


       iptraf { [ -f ] [ -q ] [ -u ] [ { -i iface | -g | -d iface | -s iface |
       -z iface | -l iface } [ -t timeout ] [ -B [ -L logfile ] ] ] | [ -h ] }


       iptraf is an  ncurses-based  IP  LAN  monitor  that  generates  various
       network  statistics  including  TCP  info,  UDP  counts,  ICMP and OSPF
       information, Ethernet load info, node stats, IP  checksum  errors,  and

       If  the  iptraf command is issued without any command-line options, the
       program comes up in  interactive  mode,  with  the  various  facilities
       accessed through the main menu.


       These options can also be supplied to the command:

       -i iface
              immediately  start  the  IP  traffic  monitor  on  the specified
              interface, or all interfaces if "-i all" is specified

       -g     immediately start the general interface statistics

       -d iface
              allows you to immediately start the detailed  on  the  indicated
              interface (iface)

       -s iface
              allows  you  to  immediately  monitor TCP and UDP traffic on the
              specified interface (iface)

       -z iface
              shows packet counts by size on the specified interface

       -l iface
              start the LAN station monitor on the specified interface, or all
              LAN interfaces if "-l all" is specified

       -t timeout
              tells  IPTraf  to  run  the  specified facility for only timeout
              minutes.  This option  is  used  only  with  one  of  the  above

       -B     redirect  standard  output  to /dev/null, closes standard input,
              and forks the program into the background.   Can  be  used  only
              with  one of the facility invocation parameters above.  Send the
              backgrounded process a USR2 signal to terminate.

       -L logfile
              allows you to specify an alternate log file name.   The  default
              log  file  name  is  based  on  either  the  interface  selected
              (detailed  interface  statistics,  TCP/UDP  service  statistics,
              packet  size  breakdown),  or  the  instance of the facility (IP
              traffic monitor,  LAN  station  monitor).   If  a  path  is  not
              specified, the log file is placed in /var/log/iptraf

       -f     clears  all  locks and counters, causing this instance of IPTraf
              to think it's the first one running.  This should only  be  used
              to recover from an abnormal termination or system crash.

       -u     allow  use  of unsupported interfaces as ethernet devices.  This
              is needed if you changed the name of an interface (ex:  ip  link
              set eth0 name foo0)

       -q     no longer needed, maintained only for compatibility.

       -h     shows a command summary


        SIGUSR1 - rotates log files while program is running
        SIGUSR2 - terminates an IPTraf process running in the background.


        /var/log/iptraf/*.log - log file
        /var/lib/iptraf/* - important IPTraf data files


        Documentation/* - complete documentation written by the author


       Gerard Paul Java (


       Frederic  Peters  (,  using iptraf -h General manual
       page modifications by Gerard Paul Java (

                               IPTraf Help Page                      IPTRAF(8)