gistfile1.txt

pkgin install isc-dhcpd


#####
cat > /opt/local/etc/dhcp/dhcpd.conf < 

default-lease-time 600;
max-lease-time 7200;
log-facility local7;
subnet6 fdad:e34f:f1d0::/64 {
        # Range for clients
        range6 fdad:e34f:f1d0::1000 fdad:e34f:f1d0::ffff;

        # Additional options
        option dhcp6.name-servers 2001:4860:4860::8888;
}



###### ------


modify  /opt/local/lib/svc/method/isc-dhcpd so it starts with -6



/usr/sbin/svcadm enable svc:/pkgsrc/isc-dhcpd:default

isc-dhcpd6

#!/sbin/sh
#
# $NetBSD: isc-dhcpd6.sh,v 1.1 2014/03/12 14:29:31 jperkin Exp $
#
# Init script for isc-dhcpd.
#

case "$1" in
start)
        if [ ! -d /var/db/isc-dhcp ]; then
                mkdir -p /var/db/isc-dhcp
                touch /var/db/isc-dhcp/dhcpd6.leases
                chmod 0640 /var/db/isc-dhcp/dhcpd6.leases
        fi
        mkdir -p /var/run/isc-dhcp
        chmod 0770 /var/run/isc-dhcp
        /opt/local/sbin/dhcpd -6 -pf /var/run/isc-dhcp/isc-dhcpd6.pid -cf /opt/local/etc/dhcp/dhcpd6.conf
        ;;
stop)
        if [ -s /var/run/isc-dhcp/isc-dhcpd6.pid ]; then
                kill `cat /var/run/isc-dhcp/isc-dhcpd6.pid`
        fi
        ;;
refresh)
        $0 stop
        $0 start
        ;;
esac

isc-dhcpd6.xml

<?xml version='1.0'?>
<!DOCTYPE service_bundle SYSTEM '/usr/share/lib/xml/dtd/service_bundle.dtd.1'>
<service_bundle type='manifest' name='export'>
  <service name='pkgsrc/isc-dhcpd6' type='service' version='0'>
    <create_default_instance enabled='true'/>
    <single_instance/>
    <dependency name='network' grouping='require_all' restart_on='error' type='service'>
      <service_fmri value='svc:/milestone/network:default'/>
    </dependency>
    <dependency name='filesystem-local' grouping='require_all' restart_on='none' type='service'>
      <service_fmri value='svc:/system/filesystem/local:default'/>
    </dependency>
    <method_context>
      <method_credential group='root' user='root'/>
    </method_context>
    <exec_method name='start' type='method' exec='/opt/local/lib/svc/method/isc-dhcpd6 start' timeout_seconds='30'/>
    <exec_method name='stop' type='method' exec='/opt/local/lib/svc/method/isc-dhcpd6 stop' timeout_seconds='30'/>
    <exec_method name='refresh' type='method' exec='/opt/local/lib/svc/method/isc-dhcpd6 refresh' timeout_seconds='30'/>
    <template>
      <common_name>
        <loctext xml:lang='C'>ISC DHCPv6 Server</loctext>
      </common_name>
    </template>
  </service>
</service_bundle>

1. Place isc-dhcpd6 in /opt/local/lib/svc/method.
2. svccfg import isc-dhcpd6.xml
3. Make sure you've a valid dhcpd6.conf in /opt/local/etc/dhcp/