Provided by: mtr_0.73-1_i386 bug

NAME

       mtr - a network diagnostic tool

SYNOPSIS

       mtr      [-hvrctglspni46]      [--help]      [--version]     [--report]
       [--report-cycles COUNT] [--curses] [--split] [--raw] [--no-dns] [--gtk]
       [--address IP.ADD.RE.SS]   [--interval SECONDS]   [--psize BYTES  |  -s
       BYTES] HOSTNAME [PACKETSIZE]

DESCRIPTION

       mtr combines the functionality of the traceroute and ping programs in a
       single network diagnostic tool.

       As  mtr starts, it investigates the network connection between the host
       mtr runs on and HOSTNAME.  by sending packets with purposly  low  TTLs.
       It  continues to send packets with low TTL, noting the response time of
       the intervening  routers.   This  allows  mtr  to  print  the  response
       percentage  and  response  times  of the internet route to HOSTNAME.  A
       sudden increase in packetloss or response time is often  an  indication
       of a bad (or simply overloaded) link.

OPTIONS

       -h

       --help
              Print the summary of command line argument options.

       -v

       --version
              Print the installed version of mtr.

       -r

       --report
              This  option  puts mtr into report mode.  When in this mode, mtr
              will run for the number of cycles specified by  the  -c  option,
              and then print statistics and exit.

              This  mode  is  useful  for  generating statistics about network
              quality.  Note that each running instance  of  mtr  generates  a
              significant amount of network traffic.  Using mtr to measure the
              quality  of  your  network  may  result  in  decreased   network
              performance.

       -c COUNT

       --report-cycles COUNT
              Use  this  option  to  set the number of pings sent to determine
              both the machines on the network and the  reliability  of  those
              machines.  Each cycle lasts one second.

       -s BYTES

       --psize BYTES

       PACKETSIZE
              These  options  or a trailing PACKETSIZE on the commandline sets
              the packet size used for probing.  It is in bytes  inclusive  IP
              and ICMP headers

              If  set  to  a  negative  number,  every  iteration  will  use a
              different, random packetsize upto that number.

       -t

       --curses
              Use this option to force mtr to use the  curses  based  terminal
              interface (if available).

       -n

       --no-dns
              Use  this  option to force mtr to display numeric IP numbers and
              not try to resolve the host names.

       -o fields order

       --order fields order
              Use this option to specify  the  fields  and  their  order  when
              loading mtr.
              Example: -o "LSD NBAW"

       -g

       --gtk
              Use  this  option  to force mtr to use the GTK+ based X11 window
              interface (if available).  GTK+ must have been available on  the
              system  when  mtr  was built for this to work.  See the GTK+ web
              page at  http://www.gimp.org/gtk/  for  more  information  about
              GTK+.

       -p

       --split
              Use this option to set mtr to spit out a format that is suitable
              for a split-user interface.

       -l

       --raw
              Use this option to tell mtr to use the raw output  format.  This
              format is better suited for archival of the measurement results.
              It could be parsed to be presented into any of the other display
              methods.

       -a IP.ADD.RE.SS

       --address IP.ADD.RE.SS
              Use  this  option  to  bind outgoing packets’ socket to specific
              interface,  so  that  any  packet  will  be  sent  through  this
              interface.  NOTE  that this option doesn’t apply to DNS requests
              (which could be and could not be what you want).

       -i SECONDS

       --interval SECONDS
              Use this option  to  specify  the  positive  number  of  seconds
              between   ICMP  ECHO  requests.   The  default  value  for  this
              parameter is one second.

       -4
              Use IPv4 only.

       -6
              Use IPv6 only.

BUGS

       Some modern routers give a lower priority to ICMP ECHO packets than  to
       other  network traffic.  Consequently, the reliability of these routers
       reported by mtr will be significantly lower than the actual reliability
       of these routers.

CONTACT INFORMATION

       For    the    latest    version,    see    the    mtr   web   page   at
       http://www.bitwizard.nl/mtr/.

       Subscribe to the mtr mailing list.  All mtr related  announcements  are
       posted   to  the  mtr  mailing  list.   To  subscribe,  send  email  to
       majordomo@lists.xmission.com with subscribe mtr  in  the  body  of  the
       message.    To   send   a   message   to  the  mailing  list,  mail  to
       mtr@lists.xmission.com.

       Bug reports and feature requests should be  sent  to  the  mtr  mailing
       list.

SEE ALSO

       traceroute(8), ping(8).