dhcrelay - Dynamic Host Configuration Protocol Relay Agent
dhcrelay [-d] -i interface server1 [... serverN]
The dhcrelay utility provides a means for relaying DHCP and
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
the command line. When a reply is received, it is broadcast
on the network from whence the original request came.
The name of at least one DHCP server to which DHCP and BOOTP
should be relayed, as well as the name of the network interface that
dhcrelay should attempt to configure, must be specified on
The options are as follows:
-d dhcrelay normally runs in the foreground until it
an interface, and then reverts to running in the
This option forces dhcrelay to always run as a foreground process.
The name of the network interface that dhcrelay
should attempt to
RFC 2132, RFC 2131.
dhcrelay was written by Ted Lemon <firstname.lastname@example.org>.
The current implementation was reworked by
Henning Brauer <email@example.com>.
Relayed DHCP traffic could actually safely be protected by
like dhcpd(8) and dhclient(8), dhcrelay will bypass IPsec
for all its
OpenBSD 3.6 April 12, 2004
[ Back ]