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  man pages->Tru64 Unix man pages -> rarpd (8)              



NAME    [Toc]    [Back]

       rarpd - Reverse address resolution protocol (RARP) daemon

SYNOPSIS    [Toc]    [Back]

       /usr/sbin/rarpd [interface] [-v] [-n] [-f filename]

OPTIONS    [Toc]    [Back]

       Specifies the system's network interface.  Causes rarpd to
       operate in verbose mode.  This option logs details of RARP
       to syslog. The instance of a RARP request and its response
       are also logged.  Disables checking of the ethers(4) file.
       By  default,  rarpd  checks the ethers file once every ten
       minutes, and, if the file was modified, rarpd rereads  the
       file.  If  you  specify  the  -n  option  rarpd  scans the
       /etc/ethers file once at startup time.  Reads an alternate
       Ethernet address file.

DESCRIPTION    [Toc]    [Back]

       The rarpd daemon maps the Ethernet address of a machine to
       the machine's Internet Protocol (IP) address.

       When rarpd is invoked, it reads the /etc/ethers  file  (by
       default)   and  waits  to  process  a  RARP  request.  The
       /etc/ethers file is checked  every  ten  minutes  for  any
       changes.   If  the  file has been modified, rarpd reads it
       again. You can disable this feature with  the  -n  option.
       You  can  force  a scan of the /etc/ethers file by sending
       the rarpd daemon a SIGHUP signal.  See signal(2) for  more
       information on SIGHUP.

       The  format  of  the  /etc/ethers  file  is  described  in
       ethers(4). You can specify a file other  than  /etc/ethers
       with  the  -f option.  The interface is the network interface
 on which the rarpd daemon should listen. The  command
       netstat  -i  shows the correct interface or interfaces for
       your system. The rarpd daemon uses the first interface  it
       finds,  if  you do not specify an interface.  See the netstat(1) reference page for more information.

       Because the rarpd daemon has  been  implemented  with  the
       Ethernet  Packet  Filter  (see  packetfilter(7)), you must
       configure your kernel with the  packet  filter  option  in
       order  for  rarpd  to function properly. The packet filter
       detects RARP broadcast packets and passes  them  to  rarpd
       for  processing.  The  filter priority for rarpd is set to

       All messages from the rarpd daemon are directed to syslog.

RESTRICTIONS    [Toc]    [Back]

       The  rarpd  daemon  ignores all ARP requests sent encapsulated
 within a  RARP  packet.  ARP  requests  are  handled
       directly by the kernel.

       The  machine  for  which  an IP address is being requested
       must be present in the server's /etc/hosts file.

ERRORS    [Toc]    [Back]

       If the Packet Filter is not configured in your kernel, the
       following  message  is displayed on the console window and
       logged to syslog: PACKETFILTER is not configured in  /vmunix

FILES    [Toc]    [Back]

       Database that maps Ethernet addresses to hostnames

SEE ALSO    [Toc]    [Back]

       Commands: arp(8), ifconfig(8), syslogd(8)

       Routines: ethers(3)

       Files: ethers(4), hosts(4), packetfilter(7)

[ Back ]
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