-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 parameters.

-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