14.5. DHCP for IPv6 (DHCPv6)
The ISC
DHCP includes support for IPv6 (DHCPv6) since the 4.x release with a DHCPv6 server, client, and relay agent functionality. The agents support both IPv4 and IPv6, however the agents can only manage one protocol at a time; for dual support they must be started separately for IPv4 and IPv6. For example, configure both DHCPv4 and DHCPv6 by editing their respective configuration files /etc/dhcp/dhcpd.conf and /etc/dhcp/dhcpd6.conf and then issue the following commands:
~]#systemctl start dhcpd~]#systemctl start dhcpd6
The
DHCPv6 server configuration file can be found at /etc/dhcp/dhcpd6.conf.
The example server configuration file can be found at
/usr/share/doc/dhcp-version/dhcpd6.conf.example.
A simple
DHCPv6 server configuration file can look like this:
subnet6 2001:db8:0:1::/64 {
range6 2001:db8:0:1::129 2001:db8:0:1::254;
option dhcp6.name-servers fec0:0:0:1::1;
option dhcp6.domain-search "domain.example";
}
To assign a
fixed-address to a client, based on the MAC address of the network interface card, use the hardware ethernet parameter:
host otherclient {
hardware ethernet 01:00:80:a2:55:67;
fixed-address6 3ffe:501:ffff:100::4321;
}
The configuration options in the
shared-network, and group declaration for IPv6 are the same as IPV4. For more details, see the examples as demonstrated in Example 14.5, “Shared-network Declaration”, and Example 14.6, “Group Declaration”.
