Edit /etc/rc.conf menjadi

dhcpd_flags=""          # for normal use: ""

Ubah juga pada file /etc/dhcpd.interfaces

xl0 (sesuaikan dengan dhcp interface di tempat anda)

File dhcpd.conf

#       $OpenBSD: dhcpd.conf,v 1.1 1998/08/19 04:25:45 form Exp $
#
# DHCP server options.
# See dhcpd.conf(5) and dhcpd(8) for more information.
#

# Network:              192.168.1.0/255.255.255.0
# Domain name:          my.domain
# Name servers:         192.168.1.3 and 192.168.1.5
# Default router:       192.168.1.1
# Addresses:            192.168.1.32 - 192.168.1.127
#
shared-network LOCAL-NET {
        option  domain-name-servers 172.16.xx.x;

        subnet 192.168.1.0 netmask 255.255.255.0 {
                option routers 192.168.1.254;

                range 192.168.1.1 192.168.1.253;
        }
}

Beres..