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rarpd(8)                  BSD System Manager's Manual                 rarpd(8)


NAME

     rarpd -- Reverse ARP Daemon


SYNOPSIS

     rarpd [-adf] [interface]


DESCRIPTION

     Rarpd services Reverse ARP requests on the Ethernet connected to
     interface. Upon receiving a request, rarpd maps the target hardware
     address to an IP address via its name, which must be present in both the
     ethers(5) and hosts(5) databases.  If a host does not exist in both data-
     bases, the translation cannot proceed and a reply will not be sent.

     Additionally, a request is honored only if the server (i.e., the host
     that rarpd is running on) can "boot" the target; that is, if the direc-
     tory /tftpboot/ipaddr exists, where is the target IP address.

     In normal operation, rarpd forks a copy of itself and runs in the back-
     ground.  Anomalies and errors are reported via syslog(3).


OPTIONS

     -a      Listen on all the Ethernets attached to the system.  If `-a' is
             omitted, an interface must be specified.

     -d      Run in debug mode, with all the output to stderr.  This option
             implies the -f option.

     -f      Run in the foreground.


FILES

     /etc/ethers
     /etc/hosts
     /tftpboot


SEE ALSO

     bpf(4),

     Finlayson, R., Mann, T., Mogul, J.C., and Theimer, M., A Reverse Address
     Resolution Protocol, RFC 903.


AUTHORS

     Craig Leres (leres@ee.lbl.gov) and Steven McCanne (mccanne@ee.lbl.gov).
     Lawrence Berkeley Laboratory, University of California, Berkeley, CA.

                               October 26, 1990

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