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DHCRELAY(8)

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NAME    [Toc]    [Back]

     dhcrelay - Dynamic Host Configuration Protocol Relay Agent

SYNOPSIS    [Toc]    [Back]

     dhcrelay [-d] -i interface server1 [... serverN]

DESCRIPTION    [Toc]    [Back]

     The dhcrelay utility provides a means for relaying DHCP  and
BOOTP requests
  from  a  subnet  to which no DHCP server is directly
connected to one
     or more DHCP servers on other subnets.

     dhcrelay listens for DHCP requests  on  a  given  interface.
When a query is
     received,  dhcrelay  forwards it to the list of DHCP servers
specified on
     the command line.  When a reply is received, it is broadcast
or unicast
     on the network from whence the original request came.

     The name of at least one DHCP server to which DHCP and BOOTP
requests
     should be relayed, as well as the name of the network interface that
     dhcrelay  should  attempt to configure, must be specified on
the command
     line.

     The options are as follows:

     -d      dhcrelay normally runs in the  foreground  until  it
has configured
             an  interface,  and  then  reverts to running in the
background.
             This option forces dhcrelay to always run as a foreground process.


     -i interface
             The  name  of  the  network  interface that dhcrelay
should attempt to
             configure.

SEE ALSO    [Toc]    [Back]

      
      
     dhclient(8), dhcpd(8)

     RFC 2132, RFC 2131.

AUTHORS    [Toc]    [Back]

     dhcrelay was written by Ted Lemon <mellon@fugue.com>.

     The current implementation was reworked by
     Henning Brauer <henning@openbsd.org>.

BUGS    [Toc]    [Back]

     Relayed DHCP traffic could actually safely be  protected  by
IPsec but,
     like  dhcpd(8)  and  dhclient(8), dhcrelay will bypass IPsec
for all its
     traffic.

OpenBSD     3.6                          April      12,      2004
[ Back ]
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