Provided by: dhcpy6d_1.0.7-1_all bug


       dhcpy6d-clients.conf - Clients configuration file for DHCPv6 server dhcpy6d


       This file contains all client configuration data if these options are set in dhcpy6d.conf:

       store_config = file


       store_file_config = /path/to/dhcpy6d-clients.conf

       An  alternative method to store client configuration is using database storage with SQLite
       or    MySQLor    PostgreSQL    databases.     Further    details    are    available    at

       This file follows RFC 822 style parsed by Python ConfigParser module.

       Some options allow multiple values. These have to be separated by spaces.


              Every  client is configured in one section. It might have multiple attributes which
              are necessary depending  on  the  configured  identification  and  general  address
              settings from dhcpy6d.conf.


       Every  client  section  contains  several  attributes. hostname and class are mandatory. A
       third one should match at  least  one  of  the  identification  attributes  configured  in

       Both  of  the  following  2  attributes  are necessary - the class and at least one of the

   Mandatory client attribute 'class'
       class = <class>
              Every client needs a class. If a client is identified, it depends from  its  class,
              which addresses it will get.  This relation is configured in dhcpy6d.conf.

   Semi-mandatory client attributes
       Depending  on  identification  in  dhcpy6d.conf  clients  need  to  have the corresponding
       attributes. At least one of them is needed.

       mac = <mac-address>
              The MAC address of the Link Local Address of the client DHCPv6  request,  formatted
              like the most usual 01:02:03:04:05:06.

       duid = <duid>
              The  DUID  of  the client which comes with the DHCPv6 request message. No hex and \
              needed, just like  for example 000100011234567890abcdef1234 .

       hostname = <hostname>
              The client non-FQDN hostname. It will be used for dynamic DNS updates.

   Extra attributes
       These attributes do not serve for identification of a client but for  appropriate  address

       id = <id> id
              has  to be a hex number in the range 0-FFFF. The client ID from this directive will
              be inserted in the address pattern of category id instead of the $id$ placeholder.

       address = <address> [<address> ...]
              Addresses configured here will be sent to a client in addition to the ones it  gets
              due to its class. Might be useful for some extra static address definitions.

       prefix = <prefix> [<prefix> ...]
              Prefix  configured  here will be sent to client in addition to the ones it gets due
              to its class.


       The next lines contain some example client definitions:
       hostname = client1
       mac = 01:01:01:01:01:01
       class = valid_client

       hostname = client2
       mac = 02:02:02:02:02:02
       class = invalid_client

       hostname = client3
       duid = 000100011234567890abcdef1234
       class = valid_client
       address = 2001:cb8::babe:1

       hostname = client4
       mac = 04:04:04:04:04:04
       id = 1234
       class = valid_client

       hostname = client5
       mac = 01:01:01:01:01:02
       class = valid_client
       prefix = 2001:cb8::/48


       This program is free software; you can redistribute it and/or modify it under the terms of
       the  GNU  General  Public  License  as  published  by the Free Software Foundation; either
       version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY  WARRANTY;
       without  even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this package;
       if  not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
       MA  02110-1301 USA

       On Debian systems, the full text of the GNU General Public License version 2 can be  found
       in the file /usr/share/common-licenses/GPL-2.



       • dhcpy6d.conf(5)

       • https://dhcpy6d.de


       Copyright (C) 2012-2021 Henri Wahl <>


       This manual page is licensed under the GPL-2 license.