bionic (8) atmarpd.8.gz

NAME

       atmarpd - ATMARP demon

SYNOPSIS

       atmarpd [-b] [-d] [-D directory] [-l logfile] [-m] [-n]
       atmarpd -V

DESCRIPTION

       atmarpd  implements  the ATMARP protocol as specified in RFC1577 and RFC1755. Address resolution requests
       are sent from the kernel (using a comparably simple protocol) to the ATMARP demon,  which  then  performs
       the dialog with the network.

       atmarpd  can operate as an ATMARP client and as an ATMARP server.  If also supports the concurrent use of
       several IP over ATM interfaces.

       atmarpd is configured from the command line using the atmarp program. Unless debugging  is  enabled,  the
       ATMARP table is written after every change to the file /var/run/atmarpd.table (or to a file with the same
       name in a different directory, if the -D option is used).

       Note that atmarpd disables support for SVCs if signaling is not available at start time, i.e. if  atmsigd
       is not running.

OPTIONS

       -b     Run in background (i.e. in a forked child process) after initializing.

       -d     Enables (lots of) debugging output. By default, atmarpd is comparably quiet.

       -D dump_dir
              Changes  the  directory  where  atmarpd  writes its table (atmarpd.table). By default, /var/run is
              used.

       -l logfile
              Write diagnostic messages to the specified file instead of to standard  error.  The  special  name
              syslog is used to send diagnostics to the system logger.

       -m     Enables  merging  of  incoming  calls if the address is known.  An incoming connection on which no
              InARP reply has been received yet, but which originates from an ATM address for  which  an  ATMARP
              entry  already  exists,  is  automatically  added  to that entry. This assumes that there is a 1:1
              mapping between IP addresses and ATMARP addresses. By default, this assumption is not made,  which
              frequently  results  in  the  setup  of  duplicate connections. Note that RFC1577 requires that an
              ATMARP server sends an InARP request on an incoming  connection.  Merging  may  therefore  violate
              RFC1577 in this case.

       -n     Prints addresses in numeric format only, i.e. no address to name translation is attempted.

       -V     Prints the version number of atmarpd on standard output and exits.

FILES

       /var/run/atmarpd.table   ATMARP table
       /proc/atm/arp            table of currently active IP over ATM VCs

BUGS

       atmarpd removes ATMARP entries from the kernel table while refreshing them.

AUTHOR

       Werner Almesberger, EPFL ICA <werner.almesberger@epfl.ch>

SEE ALSO

       atmarp(8), atmsigd(8)