rarpd(1M)                                                  rarpd(1M)


       NAME
             rarpd - DARPA Reverse Address Resolution Protocol server

       SYNOPSIS
             in.rarpd [-d] device [hostname]
             in.rarpd -a [-d]

       DESCRIPTION
             The rarpd command starts a daemon that responds to Reverse
             Address Resolution Protocol (RARP) requests.  The daemon forks
             a copy of itself that runs in background.  It must be run as
             root.

          Files
             /etc/ethers
             /etc/hosts

       USAGE
             RARP is used by machines at boot time to discover their
             Internet Protocol (IP) address.  The booting machine provides
             its Ethernet Address in a RARP request message.  Using the
             ethers and hosts databases, rarpd maps this Ethernet Address
             into the corresponding IP address which it returns to the
             booting machine in an RARP reply message.  The booting machine
             must be listed in both databases for rarpd to locate its IP
             address.  rarpd issues no reply when it fails to locate an IP
             address.

             In the first synopsis, the device parameter names the network
             interface upon which rarpd is to listen for requests.  The
             device parameter takes the ``name unit'' form used by
             ifconfig(1M).  The second argument, hostname, is used to
             obtain the IP address of that interface.  An IP address in
             ``decimal dot'' notation may be used for hostname.  If
             hostname is omitted, the address of the interface will be
             obtained from the kernel.  When the first form of the command
             is used, rarpd must be run separately for each interface on
             which RARP service is to be supported.  A machine that is a
             router may invoke rarpd multiple times, for example:

                   /usr/sbin/in.rarpd wd0 host
                   /usr/sbin/in.rarpd wd1 host-backbone

             In the second synopsis, the -a option of rarpd locates all of
             the network interfaces present on the system and starts a
             daemon process for each one that supports RARP.


                           Copyright 1994 Novell, Inc.               Page 1

      rarpd(1M)                                                  rarpd(1M)


            The -d option (valid for both synopsis entries) turns on
            debugging, and debugging information is printed to "standard
            error" (stderr).

      REFERENCES
            boot(1M), ethers(4), hosts(4), ifconfig(1M), netconfig(4)
            RFC 903









































                          Copyright 1994 Novell, Inc.               Page 2