bprelay man page on Tru64

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bprelay(8)							    bprelay(8)

NAME
       bprelay - BOOTP relay agent

SYNOPSIS
       /usr/sbin/bprelay [-f] [-d n] [-h hopcount] [-i interface,interface...]
       [-t minutes] [-w seconds] server...

OPTIONS
       Foreground mode.	 In this mode, bprelay does not run as a daemon.   All
       messages are written to stdout and stderr, although warnings and errors
       are still sent to syslog(3).  Without this option, bprelay  listens  on
       all  interfaces on which the underlying protocol supports broadcasting.
       With this option, bprelay listens only to those	interfaces  specified.
       Any  non-existent  or  invalid  interface name are ignored.  Sets debug
       level to the numeric value n.  Larger values of n provides more	debug‐
       ging  information.   Instructs  bprelay	to  not forward packets if the
       value  of  the  hops  field  in	the  BOOTP  packet  exceeds  hopcount.
       Instructs bprelay to terminate if minutes have passed without any pack‐
       ets being received.  This option is only honored if bprelay was started
       from inetd(8).  Instructs bprelay to not forward packets until the secs
       field in the BOOTP packet header exceeds this value.

DESCRIPTION
       The bprelay daemon forwards DHCP or BOOTP packets to the specified list
       of  servers  (server).	Servers	 may  be identified either by their IP
       addresses or by their names.  The bprelay agent normally runs as a dae‐
       mon  process,  and  may	be  started either from the shell command line
       interface or by inetd(8).

       The purpose of bprelay is to provide the same service as that found  in
       router  hardware,  but  to run on UNIX workstations.  The bprelay agent
       listens for DHCP/BOOTP packets on each of the interfaces	 specified  in
       the  command line, and relays each packet to the servers specified.  As
       a rule, bprelay forwards each and every packet to every	server	speci‐
       fied,  but it omits servers whose IP address is found to be on the same
       IP network as the receiving interface since those servers will  presum‐
       ably hear the original broadcast.

RESTRICTIONS
       Non-standard  subnet  masks  for	 all networks administered by bprelay,
       must be available either through /etc/netmasks or NIS.

SEE ALSO
       Commands: inetd(8), joinc(8)

       System calls: syslog(3)

       RFC1497, RFC1542, RFC1534

								    bprelay(8)
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