# This is an example configuration file for the DHCPv6 server in Kea.
# It contains configuration of the MySQL host database backend, used
# to retrieve reserved addresses, host names, DHCPv4 message fields
# and DHCP options from MySQL database.
{ "Dhcp6":

{
# Kea is told to listen on ethX interface only.
  "interfaces-config": {
    "interfaces": [ "ethX" ]
  },

# We need to specify the the database used to store leases. As of
# September 2016, four database backends are supported: MySQL,
# PostgreSQL, Cassandra, and the in-memory database, Memfile.
# We'll use memfile  because it doesn't require any prior set up.
  "lease-database": {
      "type": "memfile",
      "lfc-interval": 3600
  },

# This is pretty basic stuff, it has nothing to do with reservations.
  "preferred-lifetime": 3000,
  "valid-lifetime": 4000,
  "renew-timer": 1000,
  "rebind-timer": 2000,

# Kea supports two types of identifiers in DHCPv6: hw-address (hardware/MAC address
# of the client) and duid (DUID inserted by the client). When told to do so, Kea can
# check for each of these identifier types, but it takes a costly database lookup
# to do so. It is therefore useful from a performance perspective to use only
# the reservation types that are actually used in a given network.
    "host-reservation-identifiers": [ "duid", "hw-address" ],

# Specify connection to the database holding host reservations. The type
# specifies that the MySQL database is used. user and password are the
# credentials used to connect to the database. host and name specify
# location of the host where the database instance is running, and the
# name of the database to use. The server processing a packet will first
# check if there are any reservations specified for this client in the
# reservations list, within the subnet (configuration file). If there are
# no reservations there, the server will try to retrieve reservations
# from this database.
  "hosts-database": {
    "type": "mysql",
    "name": "kea",
    "user": "kea",
    "password": "kea",
    "host": "localhost",
    "port": 3306,
    "readonly": true
  },

# Define a subnet with a pool of dynamic addresses and a pool of dynamic
# prefixes. Addresses and prefixes from those pools will be assigned to
# clients which don't have reservations in the database. Subnet identifier
# is equal to 1. If this subnet is selected for the client, this subnet
# id will be used to search for the reservations within the database.
  "subnet6": [
    {
      "subnet": "2001:db8:1::/48",

      "pools": [ { "pool": "2001:db8:1::/80" } ],

      "pd-pools": [
          {
              "prefix": "2001:db8:1:8000::",
              "prefix-len": 56,
              "delegated-len": 64
          }
      ],
      "interface": "ethX",
      "id": 1
    }
  ]
},

# The following configures logging. It assumes that messages with at least
# informational level (info, warn, error and fatal) should be logged to stdout.
"Logging": {
    "loggers": [
        {
            "name": "kea-dhcp6",
            "output_options": [
                {
                    "output": "stdout"
                }
            ],
            "debuglevel": 0,
            "severity": "INFO"
        }
    ]
}

}
