dhcpy6d - MAC address aware DHCPv6 server
dhcpy6d [-c file] [-u user]
[-g group] [-p prefix] [-r yes|no]
[-d duid] [-m message] [-G]
dhcpy6d is an open source server for DHCPv6, the DHCP
protocol for IPv6.
Its development is driven by the need to be able to use the
existing IPv4 infrastructure in coexistence with IPv6. In a dualstack
scenario, the existing DHCPv4 most probably uses MAC addresses of clients to
identify them. This is not intended by RFC 3315 for DHCPv6, but also not
forbidden. Dhcpy6d is able to do so in local network segments and therefore
offers a pragmatical method for parallel use of DHCPv4 and DHCPv6, because
existing client management solutions could be used further.
dhcpy6d comes with the following features:
- identifies clients by MAC address, DUID or hostname
- generates addresses randomly, by MAC address, by range, by given ID or
from DNS name
- filters clients by MAC, DUID or hostname
- assigns multiple addresses per client
- allows one to organize clients in different classes
- stores leases in MySQL, PostgreSQL or SQLite database
- client information can be retrieved from MySQL or PostgreSQL database or
textfile
- dynamically updates DNS (Bind)
- supports rapid commit
- listens on multiple interfaces
Most configuration is done via the configuration file.
- -c,
--config=<configfile>
- Set the configuration file to use. Default is /etc/dhcpy6d.conf.
- -u,
--user=<user>
- Set the unprivileged user to be used.
- -g,
--group=<group>
- Set the unprivileged group to be used.
- -r,
--really-do-it=<yes|no>
- Really activate the DHCPv6 server. This is a precaution to prevent larger
network trouble.
- -d,
--duid=<duid>
- Set the DUID for the server. This argument is used by /etc/init.d/dhcpy6d
and /lib/systemd/system/dhcpy6d.service respectively.
- -p,
--prefix=<prefix>
- Set the prefix which will be substituted for the $prefix$ variable in
address definitions. Useful for setups where the ISP uses a changing
prefix.
- -G,
--generate-duid
- Generate DUID to be used in config file. This argument is used to generate
a DUID for /etc/default/dhcpy6d. After generation dhcpy6d exits.
- -m, --message
<message>
- Send message to running dhcpy6d server. At the moment the only valid
message is "prefix <prefix>". The value of
<prefix> will be used instantly where $prefix$ is to
be replaced as placeholder in address definitions. This might be of use
for dynamic prefixes by ISPs, for example: dhcpy6d -m "prefix
2001:db8".
- /etc/dhcpy6d.conf
- /etc/dhcpy6d-clients.conf
- /var/lib/dhcpy6d/
- /var/log/dhcpy6d.log
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)
- dhcpy6d-clients.conf(5)
- https://dhcpy6d.de
- https://github.com/HenriWahl/dhcpy6d
Copyright (C) 2012-2022 Henri Wahl <henri@dhcpy6d.de>
This manual page is licensed under the GPL-2 license.