kea/doc/examples/kea6/duid.json

# This is an example configuration file for DHCPv6 server in Kea.
# It demonstrates how to configure Kea to use DUID-LLT with some
# values specified explicitly.

{ "Dhcp6":

{

# Configure server identifier (DUID-LLT). The hexadecimal value of the
# identifier will be used as link layer address component of the DUID.
# The link layer type will be ethernet. The value of time is set to 0
# which indicates that the server must generate this value, i.e. use
# current time. Note that it is easy to move from this configuration
# to DUID-EN or DUID-LL. It would require changing the "type" value
# to "EN" or "LL" respectively. The "identifier" would hold a
# DUID-EN variable length identifier or DUID-LL link layer address.
# The values of "time" and "htype" would be ignored for DUID-EN.
# If one wanted to use a non-default enterprise-id for DUID-EN, the
# "enterprise-id" parameter would need to be added. Note that only
# a "type" parameter is mandatory while specifying "server-id" map.
  "server-id": {
    "type": "LLT",
    "identifier": "12C4D5AF870C",
    "time": 0,
    "htype": 1
  },

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

# We need to specify lease type. As of May 2014, three backends are supported:
# memfile, mysql and pgsql. We'll just use memfile, because it doesn't require
# any prior set up.
  "lease-database": {
    "type": "memfile"
  },

# Addresses will be assigned with preferred and valid lifetimes
# being 3000 and 4000, respectively. Client is told to start
# renewing after 1000 seconds. If the server does not respond
# after 2000 seconds since the lease was granted, client is supposed
# to start REBIND procedure (emergency renewal that allows switching
# to a different server).
  "preferred-lifetime": 3000,
  "valid-lifetime": 4000,
  "renew-timer": 1000,
  "rebind-timer": 2000,

# The following list defines subnets. Each subnet consists of at
# least subnet and pool entries.
  "subnet6": [ 
    {
      "pools": [ { "pool": "2001:db8:1::/80" } ],
      "subnet": "2001:db8:1::/64",
      "interface": "ethX"
    }
  ]
},

# The following configures logging. Kea will log all debug messages
# to /var/log/kea-debug.log file.
"Logging": {
    "loggers": [
        {
            "name": "kea-dhcp6",
            "output_options": [
                {
                    "output": "/var/log/kea-debug.log"
                }
            ], 
            "debuglevel": 0,
            "severity": "INFO"
        }
    ]
}

}